Sloped roof duct penetration detail
The profile of specific components, their configuration or sequencing, can vary with the roof system, climatic differences, and regional or area.
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9.9. Roof Penetrations
9.9A. Ventilator Flashing
Description:Straps may be attached inside the stack section of the ventilator and to the structural framing for additional support. Copper flashing laps over the composition flashing a minimum of 4". Roof Area Divider 9. The minimum weight for copper sheets used in flashing roof penetrations is 16 oz.
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Date: 2018-10-01
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