Asphalt Felt #30 D4869 (RF408)
This #30 D4869 Asphalt Felt is a uniform flexible felt of organic fibres, impregnated with an asphalt saturant.
Guide lines have been placed on the top surface for easy alignment of asphalts shingles.
This saturated felt #30 D4869 Asphalt Felt is used as the felt base for shingle underlayment in steep slope roofing.