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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=External_wall_system</id>
		<title>External wall system - Revision history</title>
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		<updated>2026-04-29T18:23:38Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=External_wall_system&amp;diff=288586&amp;oldid=prev</id>
		<title>Designing Buildings at 09:55, 5 November 2024</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=External_wall_system&amp;diff=288586&amp;oldid=prev"/>
				<updated>2024-11-05T09:55:53Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 09:55, 5 November 2024&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&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='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Building Safety Programme: estimates of EWS1 requirements on residential buildings in England, suggests that for the purposes of its analysis non-cladding, states: 'External wall systems (EWS) are the combination of the external facing material (e.g. brick) and the insulation within the external wall. Each building may have one or more external wall systems.'&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Building Safety Programme: estimates of EWS1 requirements on residential buildings in England, suggests that for the purposes of its analysis non-cladding, states: 'External wall systems (EWS) are the combination of the external facing material (e.g. brick) and the insulation within the external wall. Each building may have one or more external wall systems.' &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Ref [https://www.gov.uk/government/publications/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england https://www.gov.uk/government/publications/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Ref &lt;/del&gt;[https://www.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;gov&lt;/del&gt;.uk/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;government&lt;/del&gt;/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;publications/building&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;safety&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;programme&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;estimates&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;of&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;ews1-requirements-on-residential-buildings-in&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;england&lt;/del&gt;/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;building&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;safety&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;programme&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;estimates&lt;/del&gt;-of&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-ews1-requirements-on-residential-buildings-in-england https&lt;/del&gt;:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;//www&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;gov&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;uk/government/publications/building-safety-programme-estimates-&lt;/del&gt;of&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-ews1-requirements-on-residential-buildings-in-england/&lt;/del&gt;building&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-safety-programme-estimates-&lt;/del&gt;of&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-ews1-requirements-on-residential-buildings-in-england]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[https://www.&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;planningportal.co&lt;/ins&gt;.uk/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;planning&lt;/ins&gt;/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;planning&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;fire&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;safety/planning&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;gateway&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;one&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;glossary&lt;/ins&gt;/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;planning&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;gateway&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;one&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;glossary Planning Gateway One &lt;/ins&gt;- &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Glossary], published on the Planning Portal, suggests that the external wall of a building includes all &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the following&lt;/ins&gt;:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Anything located within any space forming part of the wall&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Any decoration or other finish applied to any external (but not internal) surface forming part&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* of the wall&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Any windows and doors in the wall.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Any part &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;a roof pitched at an angle of more than 70 degrees to the horizontal if that part of the roof adjoins a space within the &lt;/ins&gt;building &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;to which persons have access, but not access only for the purpose &lt;/ins&gt;of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;carrying out repairs or maintenance&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 12:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 18:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Rainscreen.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Rainscreen.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Products_/_components]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Products_/_components&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] [[Category:Building_safety&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=External_wall_system&amp;diff=217352&amp;oldid=prev</id>
		<title>Designing Buildings: Created page with &quot;Building Safety Programme: estimates of EWS1 requirements on residential buildings in England, suggests that for the purposes of its analysis non-cladding, states: 'External wall...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=External_wall_system&amp;diff=217352&amp;oldid=prev"/>
				<updated>2021-11-05T11:58:25Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;Building Safety Programme: estimates of EWS1 requirements on residential buildings in England, suggests that for the purposes of its analysis non-cladding, states: &amp;#039;External wall...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Building Safety Programme: estimates of EWS1 requirements on residential buildings in England, suggests that for the purposes of its analysis non-cladding, states: 'External wall systems (EWS) are the combination of the external facing material (e.g. brick) and the insulation within the external wall. Each building may have one or more external wall systems.'&lt;br /&gt;
&lt;br /&gt;
Ref [https://www.gov.uk/government/publications/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england https://www.gov.uk/government/publications/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england/building-safety-programme-estimates-of-ews1-requirements-on-residential-buildings-in-england]&lt;br /&gt;
&lt;br /&gt;
= Related articles on Designing Buildings =&lt;br /&gt;
&lt;br /&gt;
* ACM cladding.&lt;br /&gt;
* Cladding.&lt;br /&gt;
* EWS1.&lt;br /&gt;
* HPL cladding.&lt;br /&gt;
* Non-ACM cladding.&lt;br /&gt;
* Rainscreen.&lt;br /&gt;
&lt;br /&gt;
[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Products_/_components]]&lt;/div&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

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