Is roofing felt paper waterproof?
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Studied at the University of Sydney, Lives in Sydney, Australia.
Roofing felt (similar to tar paper) is the base material used to make roof shingles and roll roofing. Used for decades as waterproof coverings in residential and commercial roofs, these bitumen compositional membranes incorporate two layers. ... Not installing an underlay may void the roof covering warranty.
2023-06-02 10:46:06
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Roofing felt (similar to tar paper) is the base material used to make roof shingles and roll roofing. Used for decades as waterproof coverings in residential and commercial roofs, these bitumen compositional membranes incorporate two layers. ... Not installing an underlay may void the roof covering warranty.