// CODE SNIPPET
1101.12.1 Primary Roof Drainage
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Roof areas of a building shall be drained by roof drains or gutters. The location and sizing of drains and gutters shall be coordinated with the structural design and pitch of the roof. Unless otherwise required by the Authority Having Jurisdiction, roof drains, gutters, vertical conductors or leaders, and horizontal storm drains for primary drainage shall be sized based on a storm of 60 minutes duration and 100 year return period. Refer to Table D 101.1 (in Appendix D) for 100 years, 60-minute storms at various locations.
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1101.12.1 Storm Drainage, Primary Roof Drainage
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Building Code 2012 of Nevada > 15 Roof Assemblies and Rooftop Structures > 1503 Weather Protection > 1503.4 Roof Drainage