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Johns Manville GlasPly LV 4 Felt 5 Square Roll Built-Up Roofing Ply
Regular price $66.00Orders start at $399 — combine any items to reach the minimum. Learn more
Johns Manville GlasPly LV 4 Felt 5 Square Roll Built-Up Roofing Ply
Johns Manville GlasPly LV (4) Felt is a glass-fiber ply felt for built-up roofing (BUR) asphalt membrane systems on low-slope roofs. It is supplied as a 5-square roll in a single variant. Use it as an interplay sheet within multi-ply BUR assemblies, mopped or bitumen-applied per the roofing specification.
Key Features:
- BUR ply felt: Glass-fiber felt designed as a ply sheet in built-up asphalt roofing systems.
- 5-square roll: Each roll provides 5 squares of felt for efficient deployment on low-slope roofs.
- Low-slope use: Intended for built-up asphalt membrane systems on low-slope roofs.
- Single variant: Offered in one specification, the GlasPly LV (4) Felt 5-square roll.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 roll, 5 squares |
| Product line | GlasPly LV Felt |
| Material | Glass-fiber ply felt for BUR asphalt systems |
| Product type | Built-up roofing (BUR) asphalt membrane ply felt |
| Coverage per unit | 5 squares per roll |
| Intended use | Low-slope built-up roofing ply sheet |
Coverage & How Much You Need:
One roll provides 5 squares (500 sq. ft.) of ply felt before laps. In a BUR assembly, felt is installed in multiple plies with bitumen between layers, so order rolls based on the number of plies in the specification and roof area, allowing for lap overlap.
Fit and Compatibility:
Used as an interplay felt within Johns Manville or compatible BUR asphalt roof systems together with asphalt bitumen, base sheets and surfacing, which are specified and purchased separately.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One 5-square roll of Johns Manville GlasPly LV (4) felt.
Q: How much roof does one roll cover?
A: One roll provides 5 squares (500 sq. ft.) of felt coverage before accounting for laps and waste.
Q: What is this felt used for?
A: It is a ply sheet used within built-up roofing asphalt membrane systems on low-slope roofs.
Q: Is adhesive included?
A: No, the felt is installed with hot asphalt or specified bitumen, which is purchased separately.
Q: Is it a finished roof membrane?
A: No, it is an interplay component of a multi-ply BUR assembly that also requires bitumen and surfacing.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
GlasPly LV felts are a workhorse interply sheet in BUR assemblies, giving the membrane tensile reinforcement between bitumen layers. Plan for lap overlap when estimating, and keep rolls dry and protected until installation. Match the felt ply count to the specified system number of plies, commonly a 4-ply assembly.
Built-up roofing involves hot asphalt kettles and work at height; follow hot-work and fall-protection safety requirements.
Order Johns Manville GlasPly LV (4) felt 5-square rolls for your BUR project today.
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