Emergency Overflow Roof Drains

The flexible bellows allow differential movement up to 1 2 54 cm in any direction between the roof deck roofing system and the plumbing.

Emergency overflow roof drains.

Scuppers shall not have an opening dimension of less than 4 inches. Emergency overflow roof drains. Our exclusive dual functional structural deck flange and combination roof drains streamline specifications saving installation time and labor. When scuppers are used for secondary emergency overflow roof drainage the quantity size location and inlet elevation of the scuppers shall be sized to prevent the depth of ponding water from exceeding that for which the roof was designed as determined by section 1611 1.

Where roof drains are required secondary emergency overflow roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water will be entrapped if the primary drains allow buildup for any reason. Roof drainage 2016 05 11 plumbing mechanical. Roof drains watts roof drains provide flexible solutions for specifiers and installers in any commercial roof application. Where primary and secondary roof drains are manufactured as a single assembly the inlet and outlet for each drain shall be independent.

Flex i drain is a unique roof drain system designed to connect to the building plumbing system with no hub connectors. Where roof drains are required secondary emergency overflow roof drains or scuppers shall be provided where the roof perimeter construction extends above the roof in such a manner that water will be entrapped if the primary drains allow buildup for any reason. 1108 1 secondary emergency overflow drains or scuppers.