30 lb ASTM D226 roofing felt underlayment roll

GMC 30# ASTM D226 felt is an asphalt-saturated organic roofing underlayment designed for steep-slope applications. Supplied in a 2-square roll to provide a dependable base layer beneath shingles and other roof coverings while meeting recognized ASTM standards.

Key Features:

• Industry-Standard Underlayment: 30 lb asphalt-saturated organic felt designed for steep-slope roofing systems
• Code/Spec Ready: Listed to ASTM D226 Type II and ASTM D4869 Type IV (plus UL prepared roofing accessory specs)
• Generous Coverage per Roll: 2 SQ roll provides 216 sq ft of coverage
• Jobsite Practical Roll Format: Roll UOM (RL) for easy staging, cutting, and fastening during installation

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What is the coverage per roll?
A: Each roll covers 216 sq ft (2 squares).

Q: What standards does this felt meet?
A: It is listed to ASTM D226-05 Type II and ASTM D4869-05 Type IV, and UL specifications for prepared roofing accessory.

Q: What type of roofing is it intended for?
A: It is categorized as a steep-slope roofing underlayment.

Q: What are the roll dimensions?
A: The roll width is approximately 39-3/8 in (39.375 in). The listed roll length is 790 in.

The Quiet Luxury Layer Your Roof Cant Live Without

Think of this as the couture lining beneath a tailored jacketunseen, but essential. GMC 30# felt brings a grounded, architectural confidence to steep-slope roofing, delivering a traditional asphalt-saturated layer that supports the finish above it. Its generous roll coverage and recognized ASTM listings make it a smart, streamlined choice when you want the system to feel intentional from the inside out. Because true luxury is built in layersstarting with the ones no one sees.

Choose GMC 30# ASTM D226 felt to add a reliable, spec-ready underlayment layer to your steep-slope roofing system.