China Jump Color Gothic Style Fiberglass Reinforced Asphalt Shingles, Find details about China Gothic Style Asphalt Shingles, Asphalt Shingle for Roofing from Jump Color Gothic Style Fiberglass Reinforced Asphalt Shingles
Underlayment: At standard slopes (4" per foot or greater) a shingle underlayment is needed. Yosaite
Waterproof breathable membrane (WBM110). On low slopes (2" to 4" per foot), PE waterproof membrane
(OM400) and Self-adhesive bitumen membrane (BMS030A) are recommended to use.