CertainTeed Commercial Roofing

CTL-SF-12 Raised Door Sill Flashing


Roofs are frequently interrupted by the intersection of adjoining roof sections adjacent walls, or penetrations such as skylights, mechanical equipment curbs and plumbing soil-pipe stacks. This creates opportunities for leakage. Special steps must be taken at these locations for weather protection.

The components used to control water entry at these locations are usually called flashings.
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