China Durable Laminate Style Fiberglass Reinforced Roofing Asphalt Shingles, Find details about China Jump color laminate Style Asphalt Shingle, Fibreglass Reinforced Asphalt Shingle from Durable Laminate Style Fiberglass Reinforced Roofing Asphalt Shingles
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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.