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| − | [[Main Page|Home]] | + | [[RCABC Roofing Practices Manual|Home]] |
Latest revision as of 19:36, 2 February 2026
| Notice to the Reader:
The roofing assembly / material information published in the RCABC Roofing Practices Manual and offered below does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.
|
Manufacturer: Hal Industries Inc.
- Accepted for RoofStar Guarantee Program
- November 29, 1996
- Product Summary
- PERMA-BOARD is a semi-rigid waterproof sheet with a rubberized asphalt core sandwiched within two layers of fibreglass reinforcement. Available with a smooth poly film surface finish or a sanded finish. PERMA-BOARD is compatible with all asphalt roofing systems and is unaffected by moisture and will not rot.
- PERMA-BOARD Asphalt Base Board / Overlay
| Uses: |
PERMA-BOARD is designed to be used as an overlay to insulation and as a base for modified, built-up and single ply membranes. Elastomeric roofing membranes or built-up roofing may be heat welded or hot mopped directly to PERMA-BOARD, creating a thick waterproofing layer. The asphalt board becomes an integral part of the roof membrane making it stronger and more puncture resistant than it would otherwise be. |
| Performance Properties: |
Tensile Strength @ 23°C |
590 N / 25 mm (135 lb. / in.) |
|
Puncture Strength @ 23°C |
> 450 N / 1 cm. sq. |
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Softening Point Temperature |
105°C (221°F) |
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Maximum Water Absorption |
0.5% |
| Physical Properties: |
Dimensions |
1 m x 2 m (40" x 80" nominal size) |
|
Thickness |
4.5 mm (3/16") nominal |
|
Weight |
10.4 Kg (23 lb.) Per sheet nominal |
|
Reinforcement |
Two plies, fibreglass mat |
|
- Click below for the Technical Data Sheet.
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