Grip-Rite Fiberglass Roof Underlayment, 36-in x 32.8-ft

A rugged fiberglass base sheet designed for flat roofing applications, this Grip-Rite roll covers 300 sq ft and lays flat for fast installation. Ply lines and strong nail-holding performance provide a reliable substrate for multi-ply roofing systems.

Key Features:

• Fiberglass Construction: Durable base sheet engineered for strength and nail-holding ability
• Easy Install: Rolls out flat with printed ply lines to speed alignment and fastening
• Flat-Roof Ready: Designed for use with flat roofing; not for asphalt shingles, metal, or wood shakes
• Generous Coverage: 36 in x 32.8 ft roll covers approximately 300 sq ft
• Standards & Warranty: Meets ASTM 4601 Type 1; backed by a 1-year limited warranty

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Can this underlayment be used under asphalt shingles?
A: No. It is intended for flat roofing applications and not for asphalt shingles.

Q: How much area does one roll cover?
A: Approximately 300 square feet per roll.

Q: What is the installation method?
A: Nailed installation; align using the printed ply lines and fasten per local codes.

Q: Is it suitable for metal or wood shake roofs?
A: No, it is not recommended for metal roofing or wood shakes.

Q: Does it meet any standards?
A: Yes, it meets ASTM 4601 Type 1 specifications.

A Sleek, Structured Foundation for Modern Flat Roofs

This fiberglass base sheet sets a clean, confident groundwork that refines the silhouette of a flat roof. I love the crisp ply linesthey guide an impeccably tailored installation, elevating the finish. Pair it with minimalist flashing and tonal gravel for a polished, architectural statement. Its a quiet essential that underpins the luxury of a well-executed envelope.

Elevate your flat roof system with Grip-Rites fiberglass base sheetorder today for fast, reliable installation and lasting performance.