WATER PROOFING
Description
In building construction, waterproofing is a fundamental aspect of creating a building envelope, which is a controlled environment.
The roof covering materials, siding, foundations, and all of the various penetrations through these surfaces must be water-resistant and sometimes waterproof.
Roofing materials are generally designed to be water-resistant and shed water from a sloping roof, but in some conditions, such as ice damming and on flat roofs, the roofing must be waterproof.
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