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		<title>How to waterproof a rooflight - Revision history</title>
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		<updated>2026-04-19T04:48:27Z</updated>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=How_to_waterproof_a_rooflight&amp;diff=216556&amp;oldid=prev</id>
		<title>Designing Buildings at 07:46, 28 October 2021</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=How_to_waterproof_a_rooflight&amp;diff=216556&amp;oldid=prev"/>
				<updated>2021-10-28T07:46:15Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
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			&lt;col class='diff-content' /&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 07:46, 28 October 2021&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;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Introduction =&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;= Introduction =&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;There are many reasons why a rooflight might start leaking. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;For example, it &lt;/del&gt;could be the result of an inadequate installation, or the rooflight may have been damaged after being exposed to high winds or suffering an impact. In some cases, a leak can even turn out to be not a leak at all, but a condensation problem.&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;There are many reasons why a rooflight might start leaking. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;It &lt;/ins&gt;could be the result of an inadequate installation, or the rooflight may have been damaged after being exposed to high winds or suffering an impact. In some cases, a leak can even turn out to be not a leak at all, but a condensation problem.&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;Even a small leak can be a source of inconvenience for a building’s occupants, and it could damage expensive equipment or &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;decor&lt;/del&gt;. Problems &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;like &lt;/del&gt;damp and mould can also result from a leaking &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;skylight&lt;/del&gt;, leading to uncomfortable conditions and potential health hazards.&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;Even a small leak can be a source of inconvenience for a building’s occupants, and it could damage expensive equipment or &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;decorations&lt;/ins&gt;. Problems &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;such as &lt;/ins&gt;damp and mould can also result from a leaking &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;rooflight&lt;/ins&gt;, leading to uncomfortable conditions and potential health hazards.&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;= Methods for waterproofing rooflights =&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;= Methods for waterproofing rooflights =&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 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&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;As with any type of building penetration, there are several ways to waterproof a rooflight, and the right choice will depend on the roof construction, as well as the finished appearance that you wish to achieve.&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;As with any type of building penetration, there are several ways to waterproof a rooflight, and the right choice will depend on the roof construction, as well as the finished appearance that you wish to achieve.&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;In residential buildings with pitched roofs, for example, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;roof window and rooflight &lt;/del&gt;installations are typically sealed using flashings with tiles layered carefully over the top for a weatherproof finish.&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;In residential buildings with pitched roofs, for example, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;rrooflight &lt;/ins&gt;installations are typically sealed using flashings with tiles layered carefully over the top for a weatherproof finish.&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;However, this method &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;won’t &lt;/del&gt;work on most commercial buildings – particularly those with flat or low-pitched roofs and no roof tiles. So other techniques will be required &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;to waterproof rooflights in commercial applications&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;However, this method &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;will not &lt;/ins&gt;work on most commercial buildings – particularly those with flat or low-pitched roofs and no roof tiles. So other techniques will be required. Although a waterproof rooflight can be achieved with materials such as EPDM rubber, or even traditional roofing felt, GRP is one of the best ways to ensure a leak-free result that will look good and last for many years with minimal maintenance.&lt;/div&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;&amp;#160;&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;&lt;/div&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;Although a waterproof rooflight can be achieved with materials such as EPDM rubber, or even traditional roofing felt, GRP is one of the best ways to ensure a leak-free result that will look good and last for many years with minimal maintenance.&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;&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 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;* Leaks in 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;* Leaks in buildings.&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 style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* Damp.&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;div&gt;* Roofing defects.&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;* Roofing defects.&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;div&gt;* Roofing repairs.&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;* Roofing repairs.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;!-- diff cache key designingbuildings:diff:version:1.11a:oldid:216509:newid:216556 --&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=How_to_waterproof_a_rooflight&amp;diff=216509&amp;oldid=prev</id>
		<title>Editor at 17:21, 27 October 2021</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=How_to_waterproof_a_rooflight&amp;diff=216509&amp;oldid=prev"/>
				<updated>2021-10-27T17:21:33Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&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 17:21, 27 October 2021&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;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Rooflights and roof windows can be extremely beneficial for commercial buildings, however, you’ve got to know how to waterproof a rooflight. After all, a rooflight should flood an interior with warm, bright sunshine on a clear day – not rainwater during a downpour.&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;= &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Introduction &lt;/ins&gt;=&lt;/div&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;&amp;#160;&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;&lt;/div&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;So how do you waterproof a rooflight? As with most things, prevention is critical, and opting for expert [https://www.jandwuk.com/commercial-roof-lights-window-installation rooflight installation] from the very beginning is likely to save you a lot of time and hassle.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;Not only does installing a rooflight require working at height with a big bulky item made of breakable glass. It also requires putting a hole in the roof. The entire process, from planning through to cutting, installing and finishing, is best left to people with the right skills and plenty of experience.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;Plus, having a rooflight installed by a professional will give you additional peace of mind that the project is being carried out by an expert who can ensure the result is weatherproof and looks professional – and their work should be backed by a guarantee.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;== Why is my rooflight leaking? &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;&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;There are many reasons why a rooflight might start leaking. For example, it could be the result of an inadequate installation, or the rooflight may have been damaged after being exposed to high winds or suffering an impact. In some cases, a leak can even turn out to be not a leak at all, but a condensation problem.&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;There are many reasons why a rooflight might start leaking. For example, it could be the result of an inadequate installation, or the rooflight may have been damaged after being exposed to high winds or suffering an impact. In some cases, a leak can even turn out to be not a leak at all, but a condensation problem.&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;Whatever the reason for a leaking rooflight, getting the problem fixed needs to be a top priority. &lt;/del&gt;Even a small leak can be a source of inconvenience for a building’s occupants, and it could damage expensive equipment or decor. Problems like damp and mould can also result from a leaking skylight, leading to uncomfortable conditions and potential health hazards&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;.&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;Even a small leak can be a source of inconvenience for a building’s occupants, and it could damage expensive equipment or decor. Problems like damp and mould can also result from a leaking skylight, leading to uncomfortable conditions and potential health hazards.&lt;/div&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;&amp;#160;&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;&lt;/div&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;It’s also important to note that even if you have what seems like a tiny leak right now, without an expert to correctly diagnose the problem and make the necessary repairs, it’s likely that the problem will only get worse.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;This is where our teams at Jones and Woolman UK excel. We are able to assess and solve such leaks and potential problems and act quickly to ensure your rooflights and roofs are leak free for years to come with our peace of mind 25-year warranty on all works carried out.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;== Methods for waterproofing rooflights ==&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;As with any type of [https://www.jandwuk.com/roof-penetrations building penetration], there are several ways to waterproof a rooflight, and the right choice will depend on the roof construction, as well as the finished appearance that you wish to achieve.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;In residential buildings with pitched roofs, for example, roof window and rooflight installations are typically sealed using flashings, with tiles layered carefully over the top for a weatherproof finish.&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;&lt;/div&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;&amp;#160;&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;&lt;/div&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;However, this method won’t work on most commercial buildings – particularly those with flat or low-pitched roofs and no roof tiles. So other techniques will be required to waterproof rooflights in commercial applications. Although a waterproof rooflight can be achieved with materials such as EPDM rubber, or even traditional roofing felt, GRP is one of the best ways to ensure a leak-free result that will look good and last for many years with minimal maintenance&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;&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;= GRP roofing systems &lt;/del&gt;for &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;leak-free skylights =&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;= &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Methods &lt;/ins&gt;for &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;waterproofing rooflights &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;As &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;experts in [https://www.jandwuk.com/fibreglass-roofs GRP roofing systems]&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the team and Jones and Woolman UK have extensive experience in installing &lt;/del&gt;waterproof &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;rooflights for &lt;/del&gt;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;wide range of commercial buildings&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;including shopping malls, factories &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;even sports stadia&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;As &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;with any type of building penetration&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;there are several ways to &lt;/ins&gt;waterproof a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;rooflight&lt;/ins&gt;, and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the right choice will depend on the roof construction, as well as the finished appearance that you wish to achieve&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;Our system starts &lt;/del&gt;with &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;load-bearing upstands&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;which can be custom-made to fit your rooflights perfectly. The upstands can incorporate our unique inclined shape&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;which means rooflights &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;roof windows can be installed on roofs &lt;/del&gt;with &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;very low pitches, and even flat roof rooflights can be accommodated&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;In residential buildings &lt;/ins&gt;with &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;pitched roofs&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;for example&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;roof window &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;rooflight installations are typically sealed using flashings &lt;/ins&gt;with &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;tiles layered carefully over the top for a weatherproof finish&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;We also use a specialist weathering system comprising a flexible&lt;/del&gt;, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;reinforced cold-applied liquid that works well &lt;/del&gt;with &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;most types of cladding, as well as single&lt;/del&gt;-&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;ply &lt;/del&gt;roofs. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;It creates a smooth, clean finish that &lt;/del&gt;will &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;provide years of leak-free service – and a skylight that lets only the sunshine &lt;/del&gt;in.&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;However&lt;/ins&gt;, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;this method won’t work on most commercial buildings – particularly those &lt;/ins&gt;with &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;flat or low&lt;/ins&gt;-&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;pitched &lt;/ins&gt;roofs &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and no roof tiles&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;So other techniques &lt;/ins&gt;will &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;be required to waterproof rooflights &lt;/ins&gt;in &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;commercial applications&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;== Waterproof &lt;/del&gt;rooflight &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;installations from Jones &lt;/del&gt;and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Woolman UK ==&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Although a waterproof &lt;/ins&gt;rooflight &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;can be achieved with materials such as EPDM rubber, or even traditional roofing felt, GRP is one of the best ways to ensure a leak-free result that will look good &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;last for many years with minimal 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;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;Whether you’re thinking about adding rooflights to a commercial building, or need repairs to stop a leak, the team at Jones and Woolman UK can help. We’ve been carrying out commercial roof repairs and building penetrations work for over 40 years, and all of our work is backed by a [https://www.jandwuk.com/roof-systems-warranty comprehensive 25-year warranty].&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;= Related articles on Designing Buildings =&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;To find out more about our GRP roofing solutions, or discuss your project with one of our experts, please [https://www&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;jandwuk&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;com/contact get in touch]&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;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* Leaks in buildings&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;* Roofing defects&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;* Roofing repairs.&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;* Rooflight&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;[[Category:&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Education&lt;/del&gt;]] [[Category:Construction_techniques]]&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:&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;DCN_Guidance]] [[Category:DCN_Project_Knowledge&lt;/ins&gt;]] [[Category:Construction_techniques&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;]] [[Category:Roles_/_services&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=How_to_waterproof_a_rooflight&amp;diff=216485&amp;oldid=prev</id>
		<title>Jones &amp; Woolman UK: Created page with &quot;Rooflights and roof windows can be extremely beneficial for commercial buildings, however, you’ve got to know how to waterproof a rooflight. After all, a rooflight should flood...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=How_to_waterproof_a_rooflight&amp;diff=216485&amp;oldid=prev"/>
				<updated>2021-10-27T15:54:06Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;Rooflights and roof windows can be extremely beneficial for commercial buildings, however, you’ve got to know how to waterproof a rooflight. After all, a rooflight should flood...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Rooflights and roof windows can be extremely beneficial for commercial buildings, however, you’ve got to know how to waterproof a rooflight. After all, a rooflight should flood an interior with warm, bright sunshine on a clear day – not rainwater during a downpour.&lt;br /&gt;
&lt;br /&gt;
So how do you waterproof a rooflight? As with most things, prevention is critical, and opting for expert [https://www.jandwuk.com/commercial-roof-lights-window-installation rooflight installation] from the very beginning is likely to save you a lot of time and hassle.&lt;br /&gt;
&lt;br /&gt;
Not only does installing a rooflight require working at height with a big bulky item made of breakable glass. It also requires putting a hole in the roof. The entire process, from planning through to cutting, installing and finishing, is best left to people with the right skills and plenty of experience.&lt;br /&gt;
&lt;br /&gt;
Plus, having a rooflight installed by a professional will give you additional peace of mind that the project is being carried out by an expert who can ensure the result is weatherproof and looks professional – and their work should be backed by a guarantee.&lt;br /&gt;
&lt;br /&gt;
== Why is my rooflight leaking? ==&lt;br /&gt;
&lt;br /&gt;
There are many reasons why a rooflight might start leaking. For example, it could be the result of an inadequate installation, or the rooflight may have been damaged after being exposed to high winds or suffering an impact. In some cases, a leak can even turn out to be not a leak at all, but a condensation problem.&lt;br /&gt;
&lt;br /&gt;
Whatever the reason for a leaking rooflight, getting the problem fixed needs to be a top priority. Even a small leak can be a source of inconvenience for a building’s occupants, and it could damage expensive equipment or decor. Problems like damp and mould can also result from a leaking skylight, leading to uncomfortable conditions and potential health hazards.&lt;br /&gt;
&lt;br /&gt;
It’s also important to note that even if you have what seems like a tiny leak right now, without an expert to correctly diagnose the problem and make the necessary repairs, it’s likely that the problem will only get worse.&lt;br /&gt;
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This is where our teams at Jones and Woolman UK excel. We are able to assess and solve such leaks and potential problems and act quickly to ensure your rooflights and roofs are leak free for years to come with our peace of mind 25-year warranty on all works carried out.&lt;br /&gt;
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== Methods for waterproofing rooflights ==&lt;br /&gt;
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As with any type of [https://www.jandwuk.com/roof-penetrations building penetration], there are several ways to waterproof a rooflight, and the right choice will depend on the roof construction, as well as the finished appearance that you wish to achieve.&lt;br /&gt;
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In residential buildings with pitched roofs, for example, roof window and rooflight installations are typically sealed using flashings, with tiles layered carefully over the top for a weatherproof finish.&lt;br /&gt;
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However, this method won’t work on most commercial buildings – particularly those with flat or low-pitched roofs and no roof tiles. So other techniques will be required to waterproof rooflights in commercial applications. Although a waterproof rooflight can be achieved with materials such as EPDM rubber, or even traditional roofing felt, GRP is one of the best ways to ensure a leak-free result that will look good and last for many years with minimal maintenance.&lt;br /&gt;
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== GRP roofing systems for leak-free skylights ==&lt;br /&gt;
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As experts in [https://www.jandwuk.com/fibreglass-roofs GRP roofing systems], the team and Jones and Woolman UK have extensive experience in installing waterproof rooflights for a wide range of commercial buildings, including shopping malls, factories and even sports stadia.&lt;br /&gt;
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Our system starts with load-bearing upstands, which can be custom-made to fit your rooflights perfectly. The upstands can incorporate our unique inclined shape, which means rooflights and roof windows can be installed on roofs with very low pitches, and even flat roof rooflights can be accommodated.&lt;br /&gt;
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We also use a specialist weathering system comprising a flexible, reinforced cold-applied liquid that works well with most types of cladding, as well as single-ply roofs. It creates a smooth, clean finish that will provide years of leak-free service – and a skylight that lets only the sunshine in.&lt;br /&gt;
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== Waterproof rooflight installations from Jones and Woolman UK ==&lt;br /&gt;
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Whether you’re thinking about adding rooflights to a commercial building, or need repairs to stop a leak, the team at Jones and Woolman UK can help. We’ve been carrying out commercial roof repairs and building penetrations work for over 40 years, and all of our work is backed by a [https://www.jandwuk.com/roof-systems-warranty comprehensive 25-year warranty].&lt;br /&gt;
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To find out more about our GRP roofing solutions, or discuss your project with one of our experts, please [https://www.jandwuk.com/contact get in touch].&lt;br /&gt;
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[[Category:Education]] [[Category:Construction_techniques]]&lt;/div&gt;</summary>
		<author><name>Jones &amp; Woolman UK</name></author>	</entry>

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