Roof Breather Felt

Traditional metal roofs suffer from condensation generally at the level of the felt underlayment or the slip sheet.

Roof breather felt.

Standard specification for asphalt saturated organic felt underlayment used in steep slope. Asphalt saturated organic roofing felt can 2 51 32. Standard specification for asphalt saturated organic felt used in roofing waterproofing csa 123 3. Roof underlayment test compliance astm d 226.

A breather membrane can act as both a waterproof secondary roof and a slip sheet. The amount of evaporation that can take place within the roof is considerably reduced by the introduction of the roofing felt. Moist air from the accommodation readily finds its way into the roof space through the ceiling and holes in ill fitting hatches. Roofing felt is a breathable sheet which allows humidity and moisture to escape from beneath it thus maintaining a dry and healthy deck.

Modern composite metal roofs suffer from internal condensation that can eventually compromise the insulation and even possibly the securement. Cedar breather underlayment from benjamin obdyke benjamin obdyke cedar breather ventilated underlayment cedar breather protects the beauty and life of wood roofing by providing a space for continuous airflow between the solid roof deck and shingles or shakes. Item 169827 model 5003002. Sheathing membrane breather type paper astm d 4869.

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. Roofing felt significantly reduces the air movement in the roof space. Grace ice water shield 36 in x 75 ft 200 sq ft rubber roof underlayment. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment.