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. APOC Weather-Armor SB-1 Self-Bond Roof Underlayment is a blend of highly flexible and elastic polymers performance grade bitumen high strength glass reinforcement and anti-slip mineral surfacing. SB-1 is easy to install and utilizes a split release film for easier positioning faster installation and clean lines.