Roofing Underlayment 3x33.3ft

Waterproofing underlayment. Composed of a high tack rubberized asphalt, coated on a non-woven glass fiber mat. Lower surface has a split-release silicone release backing for ease of application. Specifically designed to provide secondary waterproofing protection to shingles as well as prevent ice damage and wind driven rain. Meets ASTM D1970-08 standard and is ICC listed. Self-sealing when penetrated by mechanical fasteners or roofing nails. Fully adhered system prevents lateral moisture migration. Sand surfaced for slip-resistance. UL Classified. Class A fire classification under fiber-glass shingles and Class C under organic felt shingles (per ASTM E108/UL 790). 1.3 mm thickness.

• SHINGLE UNDERLAYMENT
• Sq Ft=100
• Size Ft=3 x 33.3
• EAVEGUARD
• SELF-ADHESIVE