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	<id>https://energyeducation.ca/wiki/index.php?action=history&amp;feed=atom&amp;title=Foundation</id>
	<title>Foundation - Revision history</title>
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	<updated>2026-08-06T18:47:59Z</updated>
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	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=56102&amp;oldid=prev</id>
		<title>Jmdonev: 1 revision imported</title>
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		<updated>2026-08-04T20:43:54Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:43, 4 August 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
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		<author><name>Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=56101&amp;oldid=prev</id>
		<title>energy&gt;Jmdonev at 05:52, 30 July 2026</title>
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		<updated>2026-07-30T05:52:45Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 05:52, 30 July 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2017&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;07&lt;/del&gt;-01]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2026&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;08&lt;/ins&gt;-01]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Raft-slab.jpg|400px|framed|right|Figure 1. Slab foundation.&amp;lt;ref&amp;gt;Wikipedia Images. (May 15, 2015). &amp;#039;&amp;#039;Slab foundation&amp;#039;&amp;#039; [Online]. Available: http://upload.wikimedia.org/wikipedia/en/1/10/Raft-slab.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Raft-slab.jpg|400px|framed|right|Figure 1. Slab foundation.&amp;lt;ref&amp;gt;Wikipedia Images. (May 15, 2015). &amp;#039;&amp;#039;Slab foundation&amp;#039;&amp;#039; [Online]. Available: http://upload.wikimedia.org/wikipedia/en/1/10/Raft-slab.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;The &#039;&#039;&#039;foundation&#039;&#039;&#039; of the home is a large slab of material &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/del&gt;generally stone or concrete &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/del&gt;that is built on top of the Earth where a home is to be built and supports the building from underneath, promoting stability of the structure of the home. The foundation is just one component of the [[building envelope]].&amp;lt;/onlyinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;The &#039;&#039;&#039;foundation&#039;&#039;&#039; of the home is a large slab of material &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(&lt;/ins&gt;generally stone or concrete&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;) &lt;/ins&gt;that is built on top of the Earth where a home is to be built and supports the building from underneath, promoting stability of the structure of the home. The foundation is just one component of the [[building envelope]].&amp;lt;/onlyinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Improving Efficiency==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Improving Efficiency==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Although a necessary component of the building envelope, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the foundation of the home can &lt;/del&gt;frequently &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;be overlooked &lt;/del&gt;when retrofitting &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is being done and &lt;/del&gt;[[energy efficient building design|energy efficiency]] &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is being improved&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Generally speaking, when &lt;/del&gt;insulating a home &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;little thought is put into how &lt;/del&gt;the foundation should be [[insulation|insulated]]. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;However, insulating &lt;/del&gt;the foundation is a critical component of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;having &lt;/del&gt;an [[energy]] efficient home. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;It is estimated that about &lt;/del&gt;15% of [[heat]] in homes is lost through basement walls and the foundation footings.&amp;lt;ref name=&quot;quebec&quot;&amp;gt;Energie et Ressources Naturelles Quebec. (May 15, 2015). &#039;&#039;Insulation&#039;&#039; [Online]. Available: http://www.efficaciteenergetique.gouv.qc.ca/en/my-home/helpful-advice/insulation/#.VVYNivlViko&amp;lt;/ref&amp;gt; Recommendations for foundations include insulating them with material that has an [[R-value]] of approximately R-20 to R-30, not as &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;much &lt;/del&gt;as walls but still enough to keep the cold out and the heat in.&amp;lt;ref&amp;gt;International Association of Certified Home Inspectors. (May 15, 2015). &#039;&#039;Elements of an Energy Efficient Home&#039;&#039; [Online]. Available: http://www.nachi.org/energyefficiency.htm&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Although &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the foundation of a home is &lt;/ins&gt;a necessary component of the building envelope, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;people &lt;/ins&gt;frequently &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;overlook foundations &lt;/ins&gt;when retrofitting &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to improve &lt;/ins&gt;[[energy efficient building design|energy efficiency]]. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;When &lt;/ins&gt;insulating a home&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, remember to think about &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;foundation should be [[insulation|insulated]]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Insulating &lt;/ins&gt;the foundation is a critical component of an [[energy]] efficient home. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;About &lt;/ins&gt;15% of [[heat]] in homes is lost through basement walls and the foundation footings.&amp;lt;ref name=&quot;quebec&quot;&amp;gt;Energie et Ressources Naturelles Quebec. (May 15, 2015). &#039;&#039;Insulation&#039;&#039; [Online]. Available: http://www.efficaciteenergetique.gouv.qc.ca/en/my-home/helpful-advice/insulation/#.VVYNivlViko&amp;lt;/ref&amp;gt; Recommendations for foundations include insulating them with material that has an [[R-value]] of approximately R-20 to R-30, not as &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;high &lt;/ins&gt;as walls but still enough to keep the cold out and the heat in.&amp;lt;ref&amp;gt;International Association of Certified Home Inspectors. (May 15, 2015). &#039;&#039;Elements of an Energy Efficient Home&#039;&#039; [Online]. Available: http://www.nachi.org/energyefficiency.htm&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;To ensure that the foundation of a home is still performing at its peak, Natural Resources Canada recommends evaluating the foundation every 20 years and doing the necessary repairs. With the most common type of foundation &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/del&gt;concrete slab &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/del&gt;improving the foundation is quite simple as insulation can be added from the inside or the outside as long as there is no significant [[moisture intrusion|water intrusion]] into the home and no other significant structural issues exist.&amp;lt;ref name=&quot;NRCAN&quot;&amp;gt;Natural Resources Canada. (May 15, 2015). &#039;&#039;Keeping the Heat In - Basement Insulation&#039;&#039; [Online]. Available: https://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/energy/pdf/housing/Chapter6_e.pdf&amp;lt;/ref&amp;gt; In addition to insulating the foundation, drainage should be evaluated and changed if needed to ensure that drains move [[water]] away from the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;outside &lt;/del&gt;of the foundation.&amp;lt;ref&amp;gt;Al Rossetto. (May 15, 2015). &#039;&#039;Energy Efficient from the Ground Up&#039;&#039; [Online]. Available: https://www.greenbuildingadvisor.com/sites/default/files/Energy%20Efficient%20From%20the%20Ground%20Up_FHB161.pdf&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;To ensure that the foundation of a home is still performing at its peak, Natural Resources Canada recommends &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;evaluating the foundation every 20 years&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;and doing the necessary repairs. With the most common type of foundation &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(&lt;/ins&gt;concrete slab&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;), &lt;/ins&gt;improving the foundation is quite simple as insulation can be added from the inside or the outside as long as there is no significant [[moisture intrusion|water intrusion]] into the home and no other significant structural issues exist.&amp;lt;ref name=&quot;NRCAN&quot;&amp;gt;Natural Resources Canada. (May 15, 2015). &#039;&#039;Keeping the Heat In - Basement Insulation&#039;&#039; [Online]. Available: https://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/energy/pdf/housing/Chapter6_e.pdf&amp;lt;/ref&amp;gt; In addition to insulating the foundation, drainage should be evaluated and changed if needed to ensure that drains move [[water]] away from the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;exterior &lt;/ins&gt;of the foundation.&amp;lt;ref&amp;gt;Al Rossetto. (May 15, 2015). &#039;&#039;Energy Efficient from the Ground Up&#039;&#039; [Online]. Available: https://www.greenbuildingadvisor.com/sites/default/files/Energy%20Efficient%20From%20the%20Ground%20Up_FHB161.pdf&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;When insulating foundations, you have the option to do it internally or externally. Insulating from the inside can increase the risk of freezing if the foundation is close to the frost line. If possible however, the benefits are significant. Note than only sealed, well-drained concrete foundations should be insulated from the inside. To insulate from the inside, the use of a moisture-resistant insulation is recommended, such as polystyrene insulation. Mineral wool and fibreglass are also good options so long as they are paired with a waterproof component. To insulate from the outside, the soil around the outside of the home must be excavated down to the base of the foundation. Then, a rigid polystyrene insulation must be extended over the full height of the foundation, and must stay protected from the [[sunlight]]. As well, a waterproof membrane should be used. Note that stone and concrete block foundations &#039;&#039;must&#039;&#039; be insulated from the outside.&amp;lt;ref name=&quot;quebec&quot;/&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;When insulating foundations, you have the option to do it &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;internally&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;or &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;externally&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &lt;/ins&gt;Insulating from the inside can increase the risk of freezing if the foundation is close to the frost line. If possible however, the benefits are significant. Note than only sealed, well-drained concrete foundations should be insulated from the inside. To insulate from the inside, the use of a moisture-resistant insulation is recommended, such as polystyrene insulation. Mineral wool and fibreglass are also good options so long as they are paired with a waterproof component.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &lt;/ins&gt;To insulate from the outside, the soil around the outside of the home must be excavated down to the base of the foundation. Then, a rigid polystyrene insulation must be extended over the full height of the foundation, and must stay protected from the [[sunlight]]. As well, a waterproof membrane should be used. Note that stone and concrete block foundations&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, such as in Figure 1, &lt;/ins&gt;&#039;&#039;must&#039;&#039; be insulated from the outside.&amp;lt;ref name=&quot;quebec&quot; /&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Types of Foundations==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Types of Foundations==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:foundationtype1.png|400px|framed|right|Figure 2. Diagram showing several different types of foundations.&amp;lt;ref name=&amp;quot;NRCAN&amp;quot;/&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:foundationtype1.png|400px|framed|right|Figure 2. Diagram showing several different types of foundations.&amp;lt;ref name=&amp;quot;NRCAN&amp;quot;/&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;There are several different ways that a foundation can be made, and the type which should be chosen depends on the area where the home is being made and the soil type it is being built on. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A couple of the &lt;/del&gt;different types of foundations are&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:&lt;/del&gt;&amp;lt;ref&amp;gt;Nicole Crawford. (May 15, 2015). &#039;&#039;Different Types of House Foundations&#039;&#039; [Online]. Available: http://homeguides.sfgate.com/different-types-house-foundations-8753.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;There are several different ways that a foundation can be made, and the type which should be chosen depends on the area where the home is being made and the soil type it is being built on. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Some &lt;/ins&gt;different types of foundations are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;listed below, further illustrated by Figure 2.&lt;/ins&gt;&amp;lt;ref&amp;gt;Nicole Crawford. (May 15, 2015). &#039;&#039;Different Types of House Foundations&#039;&#039; [Online]. Available: http://homeguides.sfgate.com/different-types-house-foundations-8753.html&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Poured Concrete Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation is the most common type of home foundation. For this type, concrete is poured several inches thick and sits on top of the soil. Generally, the slab rests on top of a bed of gravel or other rock in order to improve drainage. This type of foundation is best if the ground does not freeze in the winter time.   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Poured Concrete Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation is the most common type of home foundation. For this type, concrete is poured several inches thick and sits on top of the soil. Generally, the slab rests on top of a bed of gravel or other rock in order to improve drainage. This type of foundation is best if the ground does not freeze in the winter time.   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Frost-Protected Foundations&#039;&#039;&#039;: These foundations are protected from damage due to extreme temperatures. For colder areas, this &quot;T-shaped&quot; foundation is used as it provides extra support &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;than &lt;/del&gt;a slab foundation. For this type, concrete footings extend below the frost line to provide support. Another option similar to this is to use a &#039;&#039;&#039;frost-protected shallow foundation&#039;&#039;&#039;, which is essentially insulated concrete that is used to protect a slab foundation from cold damage.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Frost-Protected Foundations&#039;&#039;&#039;: These foundations are protected from damage due to extreme temperatures. For colder areas, this &quot;T-shaped&quot; foundation is used as it provides extra support &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;compared to &lt;/ins&gt;a slab foundation. For this type, concrete footings extend below the frost line to provide support. Another option similar to this is to use a &#039;&#039;&#039;frost-protected shallow foundation&#039;&#039;&#039;, which is essentially insulated concrete that is used to protect a slab foundation from cold damage.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Permanent Wood Foundations&#039;&#039;&#039;: This type of foundation is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;an &lt;/del&gt;older &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;type &lt;/del&gt;and less used today. Nowadays treated plywood and lumber are used to ensure that the foundations are lightweight, decay-resistant and easy to install. Although wood foundations do not require concrete pouring, they are not as strong as concrete. However, the foundations are relatively easy to insulate and are moisture-resistant.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Permanent Wood Foundations&#039;&#039;&#039;: This type of foundation is older and less used today. Nowadays treated plywood and lumber are used to ensure that the foundations are lightweight, decay-resistant and easy to install. Although wood foundations do not require concrete pouring, they are not as strong as concrete. However, the foundations are relatively easy to insulate and are moisture-resistant.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Raised Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation in used primarily in coastal areas prone to [[flood]]ing. They are difficult to install and require careful planning as they must be able to support the home and protect it from moisture. There are two sub-types of raised foundations: &amp;#039;&amp;#039;&amp;#039;pier and beam&amp;#039;&amp;#039;&amp;#039; and &amp;#039;&amp;#039;&amp;#039;stem wall&amp;#039;&amp;#039;&amp;#039;. Pier and beam foundations use concrete blocks spaced apart and placed beneath the home to raise it above the flood line. Stem walls are similar but are continuous instead of spaced apart.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Raised Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation in used primarily in coastal areas prone to [[flood]]ing. They are difficult to install and require careful planning as they must be able to support the home and protect it from moisture. There are two sub-types of raised foundations: &amp;#039;&amp;#039;&amp;#039;pier and beam&amp;#039;&amp;#039;&amp;#039; and &amp;#039;&amp;#039;&amp;#039;stem wall&amp;#039;&amp;#039;&amp;#039;. Pier and beam foundations use concrete blocks spaced apart and placed beneath the home to raise it above the flood line. Stem walls are similar but are continuous instead of spaced apart.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Rubble, Brick, or Stone&#039;&#039;&#039;: These are older foundations composed of large pieces of material. These foundations are generally uneven and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;very &lt;/del&gt;in depth and thickness. These foundations are rarely water proofed and can absorb water from the soil.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Rubble, Brick, or Stone&#039;&#039;&#039;: These are older foundations composed of large pieces of material. These foundations are generally uneven and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;vary &lt;/ins&gt;in depth and thickness. These foundations are rarely water proofed and can absorb water from the soil.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;== For Further Reading ==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Building envelope]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Energy efficient building design]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Insulation]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* [[Moisture intrusion (building envelope)|Moisture intrusion]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* Or explore a [[Special:Random|random page]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==References==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==References==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{reflist}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{reflist}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Uploaded]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Uploaded]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>energy&gt;Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=5606&amp;oldid=prev</id>
		<title>Jmdonev: 1 revision imported</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=5606&amp;oldid=prev"/>
		<updated>2017-08-29T01:47:38Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 01:47, 29 August 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=5605&amp;oldid=prev</id>
		<title>Jmdonev at 07:10, 27 August 2017</title>
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		<updated>2017-08-27T07:10:21Z</updated>

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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:10, 27 August 2017&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2015&lt;/del&gt;-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;06&lt;/del&gt;-01]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Done &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2017&lt;/ins&gt;-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;07&lt;/ins&gt;-01]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Raft-slab.jpg|400px|framed|right|Figure 1. Slab foundation.&amp;lt;ref&amp;gt;Wikipedia Images. (May 15, 2015). &amp;#039;&amp;#039;Slab foundation&amp;#039;&amp;#039; [Online]. Available: http://upload.wikimedia.org/wikipedia/en/1/10/Raft-slab.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Raft-slab.jpg|400px|framed|right|Figure 1. Slab foundation.&amp;lt;ref&amp;gt;Wikipedia Images. (May 15, 2015). &amp;#039;&amp;#039;Slab foundation&amp;#039;&amp;#039; [Online]. Available: http://upload.wikimedia.org/wikipedia/en/1/10/Raft-slab.jpg&amp;lt;/ref&amp;gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;The &amp;#039;&amp;#039;&amp;#039;foundation&amp;#039;&amp;#039;&amp;#039; of the home is a large slab of material - generally stone or concrete - that is built on top of the Earth where a home is to be built and supports the building from underneath, promoting stability of the structure of the home. The foundation is just one component of the [[building envelope]].&amp;lt;/onlyinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;onlyinclude&amp;gt;The &amp;#039;&amp;#039;&amp;#039;foundation&amp;#039;&amp;#039;&amp;#039; of the home is a large slab of material - generally stone or concrete - that is built on top of the Earth where a home is to be built and supports the building from underneath, promoting stability of the structure of the home. The foundation is just one component of the [[building envelope]].&amp;lt;/onlyinclude&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Improving Efficiency==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Improving Efficiency==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Although a necessary component of the building envelope, the foundation of the home can frequently be overlooked when retrofitting is being done and [[energy efficient building design|energy efficiency]] is being improved. Generally speaking, when insulating a home little thought is put into how the foundation should be [[insulation|insulated]]. However, insulating the foundation is a critical component of having an energy efficient home. It is estimated that about 15% of [[heat]] in homes is lost through basement walls and the foundation footings.&amp;lt;ref name=&quot;quebec&quot;&amp;gt;Energie et Ressources Naturelles Quebec. (May 15, 2015). &#039;&#039;Insulation&#039;&#039; [Online]. Available: http://www.efficaciteenergetique.gouv.qc.ca/en/my-home/helpful-advice/insulation/#.VVYNivlViko&amp;lt;/ref&amp;gt; Recommendations for foundations include insulating them with material that has an [[R-value]] of approximately R-20 to R-30, not as much as walls but still enough to keep the cold out and the heat in.&amp;lt;ref&amp;gt;International Association of Certified Home Inspectors. (May 15, 2015). &#039;&#039;Elements of an Energy Efficient Home&#039;&#039; [Online]. Available: http://www.nachi.org/energyefficiency.htm&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Although a necessary component of the building envelope, the foundation of the home can frequently be overlooked when retrofitting is being done and [[energy efficient building design|energy efficiency]] is being improved. Generally speaking, when insulating a home little thought is put into how the foundation should be [[insulation|insulated]]. However, insulating the foundation is a critical component of having an &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;energy&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;efficient home. It is estimated that about 15% of [[heat]] in homes is lost through basement walls and the foundation footings.&amp;lt;ref name=&quot;quebec&quot;&amp;gt;Energie et Ressources Naturelles Quebec. (May 15, 2015). &#039;&#039;Insulation&#039;&#039; [Online]. Available: http://www.efficaciteenergetique.gouv.qc.ca/en/my-home/helpful-advice/insulation/#.VVYNivlViko&amp;lt;/ref&amp;gt; Recommendations for foundations include insulating them with material that has an [[R-value]] of approximately R-20 to R-30, not as much as walls but still enough to keep the cold out and the heat in.&amp;lt;ref&amp;gt;International Association of Certified Home Inspectors. (May 15, 2015). &#039;&#039;Elements of an Energy Efficient Home&#039;&#039; [Online]. Available: http://www.nachi.org/energyefficiency.htm&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;To ensure that the foundation of a home is still &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;perfoming &lt;/del&gt;at its peak, Natural Resources Canada recommends evaluating the foundation every 20 years and doing the necessary repairs. With the most common type of foundation - concrete slab - improving the foundation is quite simple as insulation can be added from the inside or the outside as long as there is no significant water intrusion into the home and no other significant structural issues exist.&amp;lt;ref name=&quot;NRCAN&quot;&amp;gt;Natural Resources Canada. (May 15, 2015). &#039;&#039;Keeping the Heat In - Basement Insulation&#039;&#039; [Online]. Available: https://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/energy/pdf/housing/Chapter6_e.pdf&amp;lt;/ref&amp;gt; In addition to insulating the foundation, drainage should be evaluated and changed if needed to ensure that drains move water away from the outside of the foundation.&amp;lt;ref&amp;gt;Al Rossetto. (May 15, 2015). &#039;&#039;Energy Efficient from the Ground Up&#039;&#039; [Online]. Available: https://www.greenbuildingadvisor.com/sites/default/files/Energy%20Efficient%20From%20the%20Ground%20Up_FHB161.pdf&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;To ensure that the foundation of a home is still &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;performing &lt;/ins&gt;at its peak, Natural Resources Canada recommends evaluating the foundation every 20 years and doing the necessary repairs. With the most common type of foundation - concrete slab - improving the foundation is quite simple as insulation can be added from the inside or the outside as long as there is no significant &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[moisture intrusion|&lt;/ins&gt;water intrusion&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;into the home and no other significant structural issues exist.&amp;lt;ref name=&quot;NRCAN&quot;&amp;gt;Natural Resources Canada. (May 15, 2015). &#039;&#039;Keeping the Heat In - Basement Insulation&#039;&#039; [Online]. Available: https://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/energy/pdf/housing/Chapter6_e.pdf&amp;lt;/ref&amp;gt; In addition to insulating the foundation, drainage should be evaluated and changed if needed to ensure that drains move &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;water&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;away from the outside of the foundation.&amp;lt;ref&amp;gt;Al Rossetto. (May 15, 2015). &#039;&#039;Energy Efficient from the Ground Up&#039;&#039; [Online]. Available: https://www.greenbuildingadvisor.com/sites/default/files/Energy%20Efficient%20From%20the%20Ground%20Up_FHB161.pdf&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;When insulating foundations, you have the option to do it internally or externally. Insulating from the inside can increase the risk of freezing if the foundation is close to the frost line. If possible however, the benefits are significant. Note than only sealed, well-drained concrete foundations should be insulated from the inside. To insulate from the inside, the use of a moisture-resistant insulation is recommended, such as polystyrene insulation. Mineral wool and fibreglass are also good options so long as they are paired with a waterproof component. To insulate from the outside, the soil around the outside of the home must be excavated down to the base of the foundation. Then, a rigid polystyrene insulation must be extended over the full height of the foundation, and must stay protected from the [[sunlight]]. As well, a waterproof membrane should be used. Note that stone and concrete block foundations &amp;#039;&amp;#039;must&amp;#039;&amp;#039; be insulated from the outside.&amp;lt;ref name=&amp;quot;quebec&amp;quot;/&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;When insulating foundations, you have the option to do it internally or externally. Insulating from the inside can increase the risk of freezing if the foundation is close to the frost line. If possible however, the benefits are significant. Note than only sealed, well-drained concrete foundations should be insulated from the inside. To insulate from the inside, the use of a moisture-resistant insulation is recommended, such as polystyrene insulation. Mineral wool and fibreglass are also good options so long as they are paired with a waterproof component. To insulate from the outside, the soil around the outside of the home must be excavated down to the base of the foundation. Then, a rigid polystyrene insulation must be extended over the full height of the foundation, and must stay protected from the [[sunlight]]. As well, a waterproof membrane should be used. Note that stone and concrete block foundations &amp;#039;&amp;#039;must&amp;#039;&amp;#039; be insulated from the outside.&amp;lt;ref name=&amp;quot;quebec&amp;quot;/&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Frost-Protected Foundations&amp;#039;&amp;#039;&amp;#039;: These foundations are protected from damage due to extreme temperatures. For colder areas, this &amp;quot;T-shaped&amp;quot; foundation is used as it provides extra support than a slab foundation. For this type, concrete footings extend below the frost line to provide support. Another option similar to this is to use a &amp;#039;&amp;#039;&amp;#039;frost-protected shallow foundation&amp;#039;&amp;#039;&amp;#039;, which is essentially insulated concrete that is used to protect a slab foundation from cold damage.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Frost-Protected Foundations&amp;#039;&amp;#039;&amp;#039;: These foundations are protected from damage due to extreme temperatures. For colder areas, this &amp;quot;T-shaped&amp;quot; foundation is used as it provides extra support than a slab foundation. For this type, concrete footings extend below the frost line to provide support. Another option similar to this is to use a &amp;#039;&amp;#039;&amp;#039;frost-protected shallow foundation&amp;#039;&amp;#039;&amp;#039;, which is essentially insulated concrete that is used to protect a slab foundation from cold damage.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Permanent Wood Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation is an older type and less used today. Nowadays treated plywood and lumber are used to ensure that the foundations are lightweight, decay-resistant and easy to install. Although wood foundations do not require concrete pouring, they are not as strong as concrete. However, the foundations are relatively easy to insulate and are moisture-resistant.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Permanent Wood Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation is an older type and less used today. Nowadays treated plywood and lumber are used to ensure that the foundations are lightweight, decay-resistant and easy to install. Although wood foundations do not require concrete pouring, they are not as strong as concrete. However, the foundations are relatively easy to insulate and are moisture-resistant.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Raised Foundations&#039;&#039;&#039;: This type of foundation in used primarily in coastal areas prone to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;flooding&lt;/del&gt;. They are difficult to install and require careful planning as they must be able to support the home and protect it from moisture. There are two sub-types of raised foundations: &#039;&#039;&#039;pier and beam&#039;&#039;&#039; and &#039;&#039;&#039;stem wall&#039;&#039;&#039;. Pier and beam foundations use concrete blocks spaced apart and placed beneath the home to raise it above the flood line. Stem walls are similar but are continuous instead of spaced apart.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &#039;&#039;&#039;Raised Foundations&#039;&#039;&#039;: This type of foundation in used primarily in coastal areas prone to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[flood]]ing&lt;/ins&gt;. They are difficult to install and require careful planning as they must be able to support the home and protect it from moisture. There are two sub-types of raised foundations: &#039;&#039;&#039;pier and beam&#039;&#039;&#039; and &#039;&#039;&#039;stem wall&#039;&#039;&#039;. Pier and beam foundations use concrete blocks spaced apart and placed beneath the home to raise it above the flood line. Stem walls are similar but are continuous instead of spaced apart.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Rubble, Brick, or Stone&amp;#039;&amp;#039;&amp;#039;: These are older foundations composed of large pieces of material. These foundations are generally uneven and very in depth and thickness. These foundations are rarely water proofed and can absorb water from the soil.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Rubble, Brick, or Stone&amp;#039;&amp;#039;&amp;#039;: These are older foundations composed of large pieces of material. These foundations are generally uneven and very in depth and thickness. These foundations are rarely water proofed and can absorb water from the soil.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Jmdonev</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=788&amp;oldid=prev</id>
		<title>J.williams: 1 revision imported</title>
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		<updated>2015-08-26T21:31:06Z</updated>

		<summary type="html">&lt;p&gt;1 revision imported&lt;/p&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:31, 26 August 2015&lt;/td&gt;
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		<author><name>J.williams</name></author>
	</entry>
	<entry>
		<id>https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=787&amp;oldid=prev</id>
		<title>J.williams at 16:54, 12 August 2015</title>
		<link rel="alternate" type="text/html" href="https://energyeducation.ca/wiki/index.php?title=Foundation&amp;diff=787&amp;oldid=prev"/>
		<updated>2015-08-12T16:54:26Z</updated>

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&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Category:Done 2015-06-01]] &lt;br /&gt;
[[File:Raft-slab.jpg|400px|framed|right|Figure 1. Slab foundation.&amp;lt;ref&amp;gt;Wikipedia Images. (May 15, 2015). &amp;#039;&amp;#039;Slab foundation&amp;#039;&amp;#039; [Online]. Available: http://upload.wikimedia.org/wikipedia/en/1/10/Raft-slab.jpg&amp;lt;/ref&amp;gt;]]&lt;br /&gt;
&amp;lt;onlyinclude&amp;gt;The &amp;#039;&amp;#039;&amp;#039;foundation&amp;#039;&amp;#039;&amp;#039; of the home is a large slab of material - generally stone or concrete - that is built on top of the Earth where a home is to be built and supports the building from underneath, promoting stability of the structure of the home. The foundation is just one component of the [[building envelope]].&amp;lt;/onlyinclude&amp;gt;&lt;br /&gt;
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==Improving Efficiency==&lt;br /&gt;
Although a necessary component of the building envelope, the foundation of the home can frequently be overlooked when retrofitting is being done and [[energy efficient building design|energy efficiency]] is being improved. Generally speaking, when insulating a home little thought is put into how the foundation should be [[insulation|insulated]]. However, insulating the foundation is a critical component of having an energy efficient home. It is estimated that about 15% of [[heat]] in homes is lost through basement walls and the foundation footings.&amp;lt;ref name=&amp;quot;quebec&amp;quot;&amp;gt;Energie et Ressources Naturelles Quebec. (May 15, 2015). &amp;#039;&amp;#039;Insulation&amp;#039;&amp;#039; [Online]. Available: http://www.efficaciteenergetique.gouv.qc.ca/en/my-home/helpful-advice/insulation/#.VVYNivlViko&amp;lt;/ref&amp;gt; Recommendations for foundations include insulating them with material that has an [[R-value]] of approximately R-20 to R-30, not as much as walls but still enough to keep the cold out and the heat in.&amp;lt;ref&amp;gt;International Association of Certified Home Inspectors. (May 15, 2015). &amp;#039;&amp;#039;Elements of an Energy Efficient Home&amp;#039;&amp;#039; [Online]. Available: http://www.nachi.org/energyefficiency.htm&amp;lt;/ref&amp;gt;&lt;br /&gt;
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To ensure that the foundation of a home is still perfoming at its peak, Natural Resources Canada recommends evaluating the foundation every 20 years and doing the necessary repairs. With the most common type of foundation - concrete slab - improving the foundation is quite simple as insulation can be added from the inside or the outside as long as there is no significant water intrusion into the home and no other significant structural issues exist.&amp;lt;ref name=&amp;quot;NRCAN&amp;quot;&amp;gt;Natural Resources Canada. (May 15, 2015). &amp;#039;&amp;#039;Keeping the Heat In - Basement Insulation&amp;#039;&amp;#039; [Online]. Available: https://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/energy/pdf/housing/Chapter6_e.pdf&amp;lt;/ref&amp;gt; In addition to insulating the foundation, drainage should be evaluated and changed if needed to ensure that drains move water away from the outside of the foundation.&amp;lt;ref&amp;gt;Al Rossetto. (May 15, 2015). &amp;#039;&amp;#039;Energy Efficient from the Ground Up&amp;#039;&amp;#039; [Online]. Available: https://www.greenbuildingadvisor.com/sites/default/files/Energy%20Efficient%20From%20the%20Ground%20Up_FHB161.pdf&amp;lt;/ref&amp;gt;&lt;br /&gt;
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When insulating foundations, you have the option to do it internally or externally. Insulating from the inside can increase the risk of freezing if the foundation is close to the frost line. If possible however, the benefits are significant. Note than only sealed, well-drained concrete foundations should be insulated from the inside. To insulate from the inside, the use of a moisture-resistant insulation is recommended, such as polystyrene insulation. Mineral wool and fibreglass are also good options so long as they are paired with a waterproof component. To insulate from the outside, the soil around the outside of the home must be excavated down to the base of the foundation. Then, a rigid polystyrene insulation must be extended over the full height of the foundation, and must stay protected from the [[sunlight]]. As well, a waterproof membrane should be used. Note that stone and concrete block foundations &amp;#039;&amp;#039;must&amp;#039;&amp;#039; be insulated from the outside.&amp;lt;ref name=&amp;quot;quebec&amp;quot;/&amp;gt;&lt;br /&gt;
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==Types of Foundations==&lt;br /&gt;
[[File:foundationtype1.png|400px|framed|right|Figure 2. Diagram showing several different types of foundations.&amp;lt;ref name=&amp;quot;NRCAN&amp;quot;/&amp;gt;]]&lt;br /&gt;
There are several different ways that a foundation can be made, and the type which should be chosen depends on the area where the home is being made and the soil type it is being built on. A couple of the different types of foundations are:&amp;lt;ref&amp;gt;Nicole Crawford. (May 15, 2015). &amp;#039;&amp;#039;Different Types of House Foundations&amp;#039;&amp;#039; [Online]. Available: http://homeguides.sfgate.com/different-types-house-foundations-8753.html&amp;lt;/ref&amp;gt;&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Poured Concrete Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation is the most common type of home foundation. For this type, concrete is poured several inches thick and sits on top of the soil. Generally, the slab rests on top of a bed of gravel or other rock in order to improve drainage. This type of foundation is best if the ground does not freeze in the winter time.  &lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Frost-Protected Foundations&amp;#039;&amp;#039;&amp;#039;: These foundations are protected from damage due to extreme temperatures. For colder areas, this &amp;quot;T-shaped&amp;quot; foundation is used as it provides extra support than a slab foundation. For this type, concrete footings extend below the frost line to provide support. Another option similar to this is to use a &amp;#039;&amp;#039;&amp;#039;frost-protected shallow foundation&amp;#039;&amp;#039;&amp;#039;, which is essentially insulated concrete that is used to protect a slab foundation from cold damage.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Permanent Wood Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation is an older type and less used today. Nowadays treated plywood and lumber are used to ensure that the foundations are lightweight, decay-resistant and easy to install. Although wood foundations do not require concrete pouring, they are not as strong as concrete. However, the foundations are relatively easy to insulate and are moisture-resistant.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Raised Foundations&amp;#039;&amp;#039;&amp;#039;: This type of foundation in used primarily in coastal areas prone to flooding. They are difficult to install and require careful planning as they must be able to support the home and protect it from moisture. There are two sub-types of raised foundations: &amp;#039;&amp;#039;&amp;#039;pier and beam&amp;#039;&amp;#039;&amp;#039; and &amp;#039;&amp;#039;&amp;#039;stem wall&amp;#039;&amp;#039;&amp;#039;. Pier and beam foundations use concrete blocks spaced apart and placed beneath the home to raise it above the flood line. Stem walls are similar but are continuous instead of spaced apart.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Rubble, Brick, or Stone&amp;#039;&amp;#039;&amp;#039;: These are older foundations composed of large pieces of material. These foundations are generally uneven and very in depth and thickness. These foundations are rarely water proofed and can absorb water from the soil.&lt;br /&gt;
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==References==&lt;br /&gt;
{{reflist}}&lt;br /&gt;
[[Category:Uploaded]]&lt;/div&gt;</summary>
		<author><name>J.williams</name></author>
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