roof deck screw leakage prevention

The Self-Sealing Substrate: How SBS Underlayments Prevent Fastener-Penetration Leaks

• September 18, 2026
• admin

A high-performance sloped roof relies on mechanical fasteners to hold the assembly firmly against cyclonic wind suction. On an average 3,000 sq. ft. (approx. 280 m²) residential villa roof, fastening the structural decking, underlayment layers, starter shingles, and field courses requires driving between 8,000 and 12,000 pneumatic roofing nails and decking screws. Every single fastener …