Roof Breather Felt

Modern composite metal roofs suffer from internal condensation that can eventually compromise the insulation and even possibly the securement.

Roof breather felt.

Standard specification for asphalt saturated organic felt underlayment used in steep slope. Grace ice water shield 36 in x 75 ft 200 sq ft rubber roof underlayment. Engineered to breathe for at least 100 years roof decks have been protected by roofing felt placed beneath shingles shakes and other types of roofing. Item 169827 model 5003002.

A breather membrane can act as both a waterproof secondary roof and a slip sheet. Moist air from the accommodation readily finds its way into the roof space through the ceiling and holes in ill fitting hatches. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. Roof underlayment test compliance astm d 226.

Item 656632 model 0903000. Sheathing membrane breather type paper astm d 4869. For optimum performance use cedar breather with rapid ridge 7 ridge vent. Roofing felt is a breathable sheet which allows humidity and moisture to escape from beneath it thus maintaining a dry and healthy deck.

Tyvek supro is the market leading breather membrane helping to protect roofs against wind and water and also improve energy efficiency. Traditional metal roofs suffer from condensation generally at the level of the felt underlayment or the slip sheet. Asphalt saturated organic roofing felt can 2 51 32. Roofing felt significantly reduces the air movement in the roof space.