https://www.designingbuildings.co.uk/w/index.php?action=history&feed=atom&title=BROOF_%28t4%29 2026-05-26T09:56:58Z Revision history for this page on the wiki MediaWiki 1.17.4 https://www.designingbuildings.co.uk/w/index.php?title=BROOF_(t4)&diff=316676&oldid=prev 2026-02-02T21:00:19Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 21:00, 2 February 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* In preliminary test, flame spread less than 0.38 m across region of burning</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* In preliminary test, flame spread less than 0.38 m across region of burning</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&minus;</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:<del class="diffchange diffchange-inline">Articles_needing_more_work</del>]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">= Related articles on Designing Buildings =</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Blue roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Cold roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Designing out fire risk in roof voids.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Existing guidance on fire compartmentation in roof voids.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Flat roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Green roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Metal roofing.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Pitched roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Shingle roofing.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Slate roofing.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Solar panels, pitched roofs and risk of fire spread.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Tile roofing.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Thatch roofing.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Types of roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Warm roof.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[[Category:<ins class="diffchange diffchange-inline">DCN_Commentary]] [[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge</ins>]]</div></td></tr> <!-- diff cache key designingbuildings:diff:version:1.11a:oldid:316674:newid:316676 --> </table>

Editor https://www.designingbuildings.co.uk/w/index.php?title=BROOF_(t4)&diff=316674&oldid=prev 2026-02-02T20:54:38Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 20:54, 2 February 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">BROOF(t4) refers to the highest fire rating classification for roofs according to the European classification system BS EN 13501-5 since the national classification system BS 476-3:2004 no longer applied after 2019 and the new Approved Regulations Part B. The test indicates that the roof system prevents fire penetration for at least 60 minutes resistance to external fire spread, penetration, and burning droplets and is essential for compliance in UK building regulations, often required for flat roofs, terraces, and high-rise developments.</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* No penetration of roof system within 60 minutes</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* In preliminary test, after withdrawal of the test flame, specimens burn for less than 5 minutes</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* In preliminary test, flame spread less than 0.38 m across region of burning</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Articles_needing_more_work]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Articles_needing_more_work]]</div></td></tr> <!-- diff cache key designingbuildings:diff:version:1.11a:oldid:316672:newid:316674 --> </table>

Editor https://www.designingbuildings.co.uk/w/index.php?title=BROOF_(t4)&diff=316672&oldid=prev 2026-02-02T20:50:38Z

<p>moved <a href="/wiki/BROOF" class="mw-redirect" title="BROOF">BROOF</a> to <a href="/wiki/BROOF_(t4)" title="BROOF (t4)">BROOF (t4)</a></p> <table style="background-color: white; color:black;"> <tr valign='top'> <td colspan='1' style="background-color: white; color:black;">← Older revision</td> <td colspan='1' style="background-color: white; color:black;">Revision as of 20:50, 2 February 2026</td> </tr></table>

Editor https://www.designingbuildings.co.uk/w/index.php?title=BROOF_(t4)&diff=316671&oldid=prev 2026-02-02T20:49:53Z

<p>Created page with &quot; <a href="/wiki/Category:Articles_needing_more_work" title="Category:Articles needing more work">Category:Articles_needing_more_work</a>&quot;</p> <p><b>New page</b></p><div><br /> <br /> [[Category:Articles_needing_more_work]]</div>

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