2016/016: Regarding the code-compliance of a zero pitch roof system

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The determination considers whether zero pitch protected liquid-applied membrane roofs will comply in regards to weathertightness and durability if constructed as specified by the manufacturer. The determination provides analysis of the evidence in support of the membrane in this use, sets out the design parameters for buildings for which the waterproof membrane would be used, and discusses drainage, resistance to water, and whether there is reliance on other components of the roofing system.

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