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Elevate APP 80 Glass Base Sheet, Smooth APP Modified Bitumen, 39.4 in. x 65' 4" Roll
Regular price $127.00Orders start at $399 — combine any items to reach the minimum. Learn more
Elevate APP 80 Glass Base Sheet, Smooth APP Modified Bitumen, 39.4 in. x 65' 4" Roll
APP 80 Glass Base is a smooth-surfaced APP modified bitumen base sheet designed to be heat-welded, reinforced with a 1.8 lb/100 sq. ft. non-woven glass fiber mat. Each roll measures 39.4 in. x 65' 4". It exceeds ASTM D 6509 and is ideal for new construction and re-roofing in multi-ply and flashing applications.
Key Features:
- Heat-Weldable Base: Smooth-surfaced APP modified bitumen base sheet designed to be heat-welded in place.
- Fiberglass Reinforced: Reinforced with a heavy 1.8 lb/100 sq. ft. (90 g/m²) non-woven glass fiber mat for strength.
- Exceeds ASTM D 6509: Flexible, durable base sheet that exceeds the performance requirements of ASTM D 6509.
- Vapor Breathing: Allows movement of vapor to reduce the chance of blisters in the finished roof.
- Multiple Attachment Options: Installs with self-adhered base sheet, hot asphalt, Elevate MB Cold Adhesive, or a roofing torch.
- Sanded Top Surface: Sanded top surface with lightly embossed granule underside for secure installation.
- New & Re-Roof Ready: Ideal for both new construction and re-roofing as a base sheet in multi-ply and flashing applications.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Elevate |
| Sell unit | 1 roll, 39.4 in. x 65' 4" |
| Product line | APP 80 Glass Base |
| Available sizes | 39.4 in. x 65' 4" |
| Material | APP modified bitumen with non-woven glass fiber mat reinforcement |
| Reinforcement | 1.8 lb/100 sq. ft. (90 g/m²) non-woven glass fiber mat |
| Finish / texture | Smooth, sanded top surface; lightly embossed granule underside |
| Dimensions | 39.4 in. x 65' 4" per roll |
| Coverage per unit | Approximately 213 sq. ft. per roll before laps |
| Intended use | Base sheet for multi-ply and flashing applications, new construction and re-roofing |
| Standards | Exceeds ASTM D 6509 performance requirements |
Coverage & How Much You Need:
Each 39.4 in. x 65' 4" roll covers approximately 213 sq. ft. before laps. Deduct for specified side and end laps and waste when figuring rolls per square for your base-ply layout.
Fit and Compatibility:
APP 80 Glass Base pairs with APP modified bitumen cap sheets and Elevate multi-ply assemblies, attaching via self-adhered base sheet, hot asphalt, Elevate MB Cold Adhesive, or torch. Cap sheets, adhesives, and termination products are sold separately.
Frequently Asked Questions (FAQ):
Q: What does one order include?
A: One roll of Elevate APP 80 Glass Base Sheet measuring 39.4 in. x 65' 4".
Q: How is the base sheet attached?
A: It can be installed with a self-adhered base sheet, hot asphalt, Elevate MB Cold Adhesive, or a roofing torch.
Q: How many squares does a roll cover?
A: One roll covers about 213 sq. ft. before laps; adjust for the specified overlap in your system.
Q: What reinforces the sheet?
A: A heavy 1.8 lb/100 sq. ft. (90 g/m²) non-woven glass fiber mat runs through the membrane.
Q: Does it help with blistering?
A: Yes, the sheet allows vapor movement, reducing the chance of blisters in the finished roof.
Q: Is it suitable for re-roofing?
A: Yes, it is ideal for both new construction and re-roofing in multi-ply and flashing applications.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Choose APP 80 Glass Base when you need a strong, dimensionally stable glass-mat base ply under a heat-welded APP cap sheet. Its vapor-permeable construction is a smart pick where blistering has been an issue. On tear-offs, inspect the deck before torch or hot-asphalt application and follow the specified attachment method for the wind zone. Keep laps shingle-lapped in the direction of water flow for trouble-free performance.
Torch and hot-asphalt application of modified bitumen base sheets requires trained crews, fire watch, and proper deck verification before installation.
Order the Elevate APP 80 Glass Base Sheet roll today for a strong, blister-resistant multi-ply roof foundation.
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