Roofing accessories · GMC
GMC GBS40 Premium All-Weather Base Underlayment - 2 Sq. Roll
SKU: 528647
GBS 40 PREMIUM All Weather Base is manufactured to the highest quality standards. GBS 40 is manufactured from a fiberglass sheet with a Specially Formulated SBS Modified asphalt to prevent cracking in cold weather and stay durable in warm weather. Maximum protection underlayment for concrete tile, clay tile, and metal roofing systems.
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Product details
- Category
- Roofing accessories
- Unit
- roll
- Brand
- GMC
- Style
- Underlayment
- Unit codes
- RL
- Applicable standards
- ASTM D226 ASTM D4601 ASTM D6757 Type II ASTM D4869 ICC Approval - ESR 1561
- Manufacturer product number
- GMCGBS40UDL
