Henry HE740915 Eaveguard 100 Self-Adhesive Shingle Underlayment 3 X33.3

HENRY EAVEGUARD 100 SELF-ADHESIVE SHINGLE UNDERLAYMENT 100 square feet; 3ft x 33.3ft; Meets ASTM D1970 STD; 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 fiberglass shingles and Class C under organic felt shingles (ASTM E108/UL 790); Boxed ;