APOC Self-Bond 36-in x 50-ft 150-sq ft Polypropylene Roof Underlayment

APOC Weather-Armor® SB-1 Self-Bond® Roof Underlayment is your premium, all-purpose roof underlayment and leak barrier. Ideal for use under shingles, slate, wood shake or other steep slope roofing materials, SB-1 Self-Bond® underlayment is engineered with high strength reinforcement, exceptional elasticity and a non-skid mineral finish.