Type 1 Roofing Felt
Astm has established two standards for asphalt felt.
Type 1 roofing felt. 15 specification felt astm d4869 type ii d226 type i atlas provides a complete selection of roofing felts or roofing paper. Astm d226 felt underlayment 15 lb astm 226 type i the home depot. Roofing paper is an essential layer in the roofing process as it acts as extra protection from the elements. Gap 15 astm d 4869 type 1 roofing felt is a widely accepted underlayment product that is manufactured from organic felt and is saturated with asphalt.
Gap astm 15 d226 type 1 roofing felt is a widely accepted underlayment product that is manufactured from superior organic felt and is saturated with asphalt. The less stringent standard is astm d 4869 which requires type 1 15 felt to weigh at least 8 pounds per 100 square feet. Gaf shingle mate 36 in x 144 ft 400 sq ft felt roof underlayment. Saturated roofing felt and is suitable for commercial and residential uses.
It is a florida building code approved product.