https://roofers.wiki/index.php?action=history&feed=atom&title=Flat_Roofs 2026-11-05T20:01:20Z Revision history for this page on the wiki MediaWiki 1.43.11 https://roofers.wiki/index.php?title=Flat_Roofs&diff=7&oldid=prev 2026-10-13T19:51:37Z

<p></p> <p><b>New page</b></p><div>&#039;&#039;&#039;Flat roofs&#039;&#039;&#039; are roofs with little or no slope. They are common on commercial and industrial buildings and, in some regions, on residential architecture. Though called &quot;flat,&quot; they have a slight slope to direct water toward drains.<br /> <br /> == Membrane systems ==<br /> Because flat roofs do not shed water as quickly as pitched roofs, they rely on continuous waterproof membranes:<br /> * &#039;&#039;&#039;EPDM&#039;&#039;&#039; &amp;mdash; a synthetic rubber membrane<br /> * &#039;&#039;&#039;TPO&#039;&#039;&#039; &amp;mdash; a heat-weldable thermoplastic membrane, often white for reflectivity<br /> * &#039;&#039;&#039;PVC&#039;&#039;&#039; &amp;mdash; a durable thermoplastic membrane<br /> * &#039;&#039;&#039;Modified bitumen&#039;&#039;&#039; &amp;mdash; asphalt-based rolled roofing<br /> * &#039;&#039;&#039;Built-up roofing (BUR)&#039;&#039;&#039; &amp;mdash; alternating layers of bitumen and reinforcing fabric<br /> <br /> == Considerations ==<br /> Flat roofs need reliable drainage, regular [[Roof Inspection|inspection]], and careful flashing around penetrations to prevent ponding water and leaks.<br /> <br /> == See also ==<br /> * [[Roofing]]<br /> * [[Roof Types]]<br /> * [[Roofing Materials]]</div>

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