Grace G7 Self Adhered Roofing Underlayment Polymeric

Description

Product Overview

The Grace G7 self-adhered roofing underlayment is a high-performance membrane designed for superior weatherproofing in decking and fencing applications. Manufactured by Grace, this product features an aggressive rubberized asphalt composition combined with a polyethylene film, providing excellent adhesion and durability. Key specifications include a thickness of 40 mils, tensile strength of 250 psi (1720 kN/m²), and available roll sizes of 66.6 feet (covering 200 square feet) and 75 feet (covering 225 square feet), with weights of 56 pounds and 61.4 pounds respectively. It is color-coded blue for easy identification and comes in a polymeric material that ensures long-lasting performance under harsh conditions.

Usage

This underlayment is ideal for protecting under all sloped roofs, including residential and commercial structures, where it seals around fasteners and prevents water infiltration. It is commonly used in decking, fencing, and other exterior applications that require reliable weatherproofing. Target audiences include professional contractors, DIY enthusiasts, and homeowners seeking a durable solution for roof and deck protection against UV exposure, moisture, and temperature fluctuations. Its self-adhered design simplifies installation, making it suitable for various environments from new construction to renovation projects.

Why Choose Us

Grace G7 stands out due to its high temperature resistance and superior adhesion, ensuring it remains effective in extreme weather conditions. Covered by CertainTeed’s SureStart Warranty, it offers peace of mind with reliable quality assurance. The product’s slip-resistant surface enhances safety during installation, while its ability to withstand up to 120 days of UV exposure makes it a long-term investment. Compared to standard underlayments, its rubberized asphalt formulation provides better sealing and durability, reducing the risk of leaks and damage over time.

Key Features

• High temperature resistant self-adhered membrane with superior adhesion for reliable performance
• Made of aggressive rubberized asphalt and polyethylene film for enhanced durability and slip resistance
• Seals around fasteners to protect under all sloped roofs, preventing water and air infiltration
• Withstands up to 120 days of UV exposure, backed by CertainTeed’s SureStart Warranty for long-term assurance
• Available in multiple roll sizes with precise coverage and weight options for flexible project needs

FAQ

What is the thickness of the Grace G7 underlayment?

The Grace G7 underlayment is 40 mils thick, providing a robust barrier against moisture and environmental elements while maintaining flexibility for easy installation.

How long does this underlayment resist UV exposure?

It can withstand up to 120 days of UV exposure, making it suitable for prolonged outdoor use without degradation, as supported by warranty coverage.

Is this product self-adhered, and does it require additional adhesives?

Yes, it is self-adhered with superior adhesion, so no additional adhesives are needed for installation, simplifying the process and ensuring a secure fit.

What roll sizes are available, and how much area do they cover?

Available roll lengths are 66.6 feet covering 200 square feet and 75 feet covering 225 square feet, allowing you to choose based on your project size and requirements.

Can this underlayment be used on sloped roofs?

Absolutely, it is designed to protect under all sloped roofs, sealing around fasteners and providing effective weatherproofing in various roofing applications.