
United Asphalt Glass Base Roll, 3 Squares per Roll
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United Asphalt Glass Base Roll, 3 Squares per Roll
United Asphalt Glass Base is a glass-felt base sheet for built-up and modified bitumen roof systems, supplied as a roll covering 3 squares. It serves as the base ply in commercial membrane and BUR/MB assemblies and is installed with hot or cold asphalt or mechanical attachment per the roof system design.
Key Features:
- Base Ply: Glass-felt base sheet for BUR and modified bitumen roof systems.
- 3 Squares Per Roll: Each roll covers 3 roofing squares (300 sq. ft.).
- Roll Format: Supplied as a roll for efficient handling on the roof.
- BUR & MB Systems: Intended for built-up roofing and modified bitumen membrane assemblies.
- System Foundation: Provides the foundational ply beneath cap sheets and membranes.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | United Asphalt |
| Sell unit | 1 roll, 3 SQ |
| Product line | United Asphalt Glass Base |
| Material | Glass-felt base sheet (asphalt-coated base material) |
| Available sizes | 3 SQ per roll |
| Coverage per unit | 3 squares (300 sq. ft.) per roll |
| Intended use | Base sheet for BUR and MB commercial roof systems |
Coverage & How Much You Need:
One roll covers 3 squares (300 sq. ft.) at the stated size. For job sizing, divide roof area by 3 squares per roll and add for laps and waste as required by the specified system.
Fit and Compatibility:
Used as the base ply in built-up and modified bitumen assemblies with compatible United Asphalt cap sheets, ply sheets and asphalt adhesives. Membrane products and adhesives are ordered separately.
Frequently Asked Questions (FAQ):
Q: How much does one roll cover?
A: One roll is sized at 3 squares, or about 300 square feet, before laps and waste.
Q: What is it used for?
A: It is a base sheet for built-up roofing (BUR) and modified bitumen (MB) membrane systems.
Q: How is it attached?
A: Base sheets are typically set in asphalt or mechanically attached per the roof system specification; follow the system manufacturer's details.
Q: How many rolls do I need?
A: Divide the roof area by 3 squares per roll, then add rolls to account for side and end laps and job waste.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Glass base sheets provide a dimensionally stable, fire-resistant base ply for torch, hot-applied or cold-applied modified systems. Plan laps per the system specification and prime porous decks before mopping. Order cap sheet and mastic quantities in the same takeoff so the assembly is compatible end to end.
Follow roof system installation and hot-working safety practices, and check the deck and system specification before installation.
Stock United Asphalt Glass Base rolls for dependable base-ply coverage on your next BUR or MB roof.
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