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<br /> Technical<br /> Extra<br /> August 2019 | Issue 25<br /> NHBC Standards<br /> n Building on sites in coastal locations page 3<br /> n Spandrel panels on gable end walls to pitched roofs page 6<br /> n Quality assurance of MMC systems page 7<br /> n Flat roofs, balconies and terraces page 8<br /> Regulation and compliance<br /> n Ban on the use of combustible materials in<br /> relevant buildings over 18m page 9<br /> n Application of the ban on combustible materials<br /> in buildings over 18m page 13<br /> n Downlighter penetrations within intermediate floors page 17<br /> Guidance and good practice<br /> n NHBC Foundation page 18<br /> n Raised external ground levels page 22<br<a title="Technical Extra - Issue 25 page 1" href="http://viewer.zmags.com/publication/ed79bfaa?page=1"> Technical Extra August 2019 | Issue 25 NHBC Sta</a> <a title="Technical Extra - Issue 25 page 2" href="http://viewer.zmags.com/publication/ed79bfaa?page=2"> Foreword Welcome to Technical Extra 25 Standard</a> <a title="Technical Extra - Issue 25 page 3" href="http://viewer.zmags.com/publication/ed79bfaa?page=3"> NHBC Standards Who should read this: Technical a</a> <a title="Technical Extra - Issue 25 page 4" href="http://viewer.zmags.com/publication/ed79bfaa?page=4"> NHBC Standards Building on sites in coastal loc</a> <a title="Technical Extra - Issue 25 page 5" href="http://viewer.zmags.com/publication/ed79bfaa?page=5"> NHBC Standards Building on sites in coastal loc</a> <a title="Technical Extra - Issue 25 page 6" href="http://viewer.zmags.com/publication/ed79bfaa?page=6"> NHBC Standards Spandrel panels on gable end wal</a> <a title="Technical Extra - Issue 25 page 7" href="http://viewer.zmags.com/publication/ed79bfaa?page=7"> NHBC Standards Quality assurance of MMC systems</a> <a title="Technical Extra - Issue 25 page 8" href="http://viewer.zmags.com/publication/ed79bfaa?page=8"> NHBC Standards Flat roofs, balconies and terrac</a> <a title="Technical Extra - Issue 25 page 9" href="http://viewer.zmags.com/publication/ed79bfaa?page=9"> Regulation and compliance Who should read this: </a> <a title="Technical Extra - Issue 25 page 10" href="http://viewer.zmags.com/publication/ed79bfaa?page=10"> Regulation and compliance Ban on the use of com</a> <a title="Technical Extra - Issue 25 page 11" href="http://viewer.zmags.com/publication/ed79bfaa?page=11"> Regulation and compliance Ban on the use of com</a> <a title="Technical Extra - Issue 25 page 12" href="http://viewer.zmags.com/publication/ed79bfaa?page=12"> Regulation and compliance Ban on the use of com</a> <a title="Technical Extra - Issue 25 page 13" href="http://viewer.zmags.com/publication/ed79bfaa?page=13"> </a> <a title="Technical Extra - Issue 25 page 14" href="http://viewer.zmags.com/publication/ed79bfaa?page=14"> Regulation and compliance Regulation and compl</a> <a title="Technical Extra - Issue 25 page 15" href="http://viewer.zmags.com/publication/ed79bfaa?page=15"> Regulation and compliance Regulation and complian</a> <a title="Technical Extra - Issue 25 page 16" href="http://viewer.zmags.com/publication/ed79bfaa?page=16"> Regulation and compliance Application of the ba</a> <a title="Technical Extra - Issue 25 page 17" href="http://viewer.zmags.com/publication/ed79bfaa?page=17"> Regulation and compliance Downlighter penetrati</a> <a title="Technical Extra - Issue 25 page 18" href="http://viewer.zmags.com/publication/ed79bfaa?page=18"> Guidance and good practice Who should read this</a> <a title="Technical Extra - Issue 25 page 19" href="http://viewer.zmags.com/publication/ed79bfaa?page=19"> Guidance and good practice NHBC Foundation Guid</a> <a title="Technical Extra - Issue 25 page 20" href="http://viewer.zmags.com/publication/ed79bfaa?page=20"> Guidance and good practice NHBC Foundation Guid</a> <a title="Technical Extra - Issue 25 page 21" href="http://viewer.zmags.com/publication/ed79bfaa?page=21"> Guidance and good practice NHBC Foundation Guid</a> <a title="Technical Extra - Issue 25 page 22" href="http://viewer.zmags.com/publication/ed79bfaa?page=22"> Guidance and good practice Raised external grou</a> <a title="Technical Extra - Issue 25 page 23" href="http://viewer.zmags.com/publication/ed79bfaa?page=23"> Guidance and good practice Raised external grou</a> <a title="Technical Extra - Issue 25 page 24" href="http://viewer.zmags.com/publication/ed79bfaa?page=24"> Guidance and good practice Retaining walls Who </a> <a title="Technical Extra - Issue 25 page 25" href="http://viewer.zmags.com/publication/ed79bfaa?page=25"> Who should read this: Technical and construction </a> <a title="Technical Extra - Issue 25 page 26" href="http://viewer.zmags.com/publication/ed79bfaa?page=26"> Information and support Our in-house industry ex</a> <a title="Technical Extra - Issue 25 page 27" href="http://viewer.zmags.com/publication/ed79bfaa?page=27"> Information and support Notes: </a> <a title="Technical Extra - Issue 25 page 28" href="http://viewer.zmags.com/publication/ed79bfaa?page=28"> Usefullccoonntatcatcstfsorfotrecthencihcanlicinaf</a>