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Johns Manville APPEX 4.5M CR G Cap Sheet, White, 1 Square Roll
Regular price $190.75Orders start at $399 — combine any items to reach the minimum. Learn more
Johns Manville APPEX 4.5M CR G Cap Sheet, White, 1 Square Roll
The Johns Manville APPEX 4.5M CR G is a white torch-applied APP modified bitumen cap sheet for low-slope roofs, delivered as a roll covering 1 square. It forms the top layer of a modified bitumen assembly. Install over an approved JM base sheet or interply, sold separately.
Key Features:
- White surfacing: Supplied in White for a lighter-colored roof cap layer.
- Torch applied: Designed for torch application as a modified bitumen cap sheet.
- APP modified: APP-modified asphalt construction for low-slope membrane systems.
- One square per roll: Each roll covers 1 square (100 sq. ft.).
- Cap sheet role: Serves as the weather-exposed top layer of the roof assembly.
- Low-slope rated: Classified among APP modified bitumen membranes for low-slope roofing.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 roll, 1 square |
| Product line | APP Modified Bitumen Membranes |
| Available colors | ['White'] |
| Product type | Torch-applied APP modified bitumen cap sheet |
| Coverage per unit | 1 square per roll |
| Application method | Torch-applied |
| Intended use | Cap sheet for low-slope modified bitumen roof assemblies |
Coverage & How Much You Need:
One roll covers 1 square (100 sq. ft.). Estimate the number of rolls from roof area and add allowance for laps and flashing details.
Fit and Compatibility:
Install over an approved Johns Manville base sheet or interply in a JM modified bitumen system; base layers are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One White APPEX 4.5M CR G cap sheet roll covering 1 square.
Q: What color is it?
A: White is the color listed for this item.
Q: How is it applied?
A: It is a torch-applied cap sheet installed by trained roofing professionals.
Q: How many rolls for 10 squares?
A: Approximately 10 rolls plus extra for laps and detail work.
Q: Do I need a base sheet?
A: Yes, it is a cap sheet and requires an approved base layer sold separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
APPEX cap sheets are a standard choice for torch-applied APP systems; the CR G designation refers to the manufacturer's product construction and should be confirmed against JM technical data. Verify assembly fire rating and use JM-approved base and interply products for a complete system.
Torch application uses open flame; follow manufacturer fire-safety procedures and local codes with extinguishing equipment on site.
Order the Johns Manville APPEX 4.5M CR G White cap sheet roll for your next low-slope roof.
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