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8 No.20658 GOVERNMENT GAZETTE, 1 DECEMBER 1999<br />
are likely to be subjected and without the roof construction becoming detached from its respective<br />
supporting structure.<br />
<strong>NHBRC</strong> technical requirements for serviceability<br />
3.(1)Anyhomeandanystructural element or component thereof must be durable, resist water penetration<br />
and prevent condensation which may adversely affect fitness for habitation, and withstand any loads to<br />
whichthey are likely to be subjectedwithoutundue deflection, distortion or cracking overthe lifetime of<br />
thestructure.<br />
(2) Walls must bedesigned and constructedto resist the penetrationofwater into the interiorof homes.<br />
(3) Roofs mustbedesigned and constructed to resist rain penetrationand to avoid the accumulationofrain<br />
water thereon.<br />
<strong>NHBRC</strong> technical requirements for fire<br />
4. <strong>The</strong> combustibility andfireresistance characteristics of all floors, walls, roofs and the ceilingassembly<br />
must be appropriate to the locationand use of such elements.<br />
<strong>NHBRC</strong> technical requirements for materials<br />
5. Materials usedintheconstruction of homes must be sufficiently durable and of a suitable quality for the<br />
purpose for whichthey are to be used.<br />
<strong>NHBRC</strong> technical requirements for drainage<br />
6. Drainage installations must be designed and constructedso that the installationis capable ofcarrying<br />
the hydraulic design load, of being easily maintained, and does not result in leakage which may<br />
detrimentally affect the structural integrityof a home.
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