Division C - Accepted Materials
Breathex Pro
by HAL Industries Inc.
| Material Acceptance and Product Details
The information published in the RCABC Roofing Practices Manual and offered below does NOT represent a complete set of the manufacturer’s data or specifications, nor is this material recommended or endorsed by the Guarantor. The preparation of a detailed specification is the responsibility of the Design Authority.
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- Manufacturer
- HAL Industries Ltd.
- Accepted for the RoofStar Guarantee Program
- January 20, 2026
- Accepted for application in
- Water-shedding Roof Systems
- Acceptance Criteria
- RGC ACWS-PUL (RGC ACCEPTANCE CRITERIA for MECHANICALLY ATTACHED POLYMERIC ROOF UNDERLAYMENTS Used in Water-shedding Systems)
- Product Summary
- Breathex Pro is a nail-applied synthetic roof underlayment that is engineered to resist water from the top, yet permit the transmission of water vapour from underneath (10 to 20 perms, depending on the referenced test method). It is manufactured with a textured walking surface and tested for UV exposure up to 6 months.
- (adapted from the Technical Data Sheet)
- Conditions and Limitations
- None (see the manufacturer's published limitations concerning deck preparation, UV exposure, fastening, etc.).
- Technical Data Sheet
- Click the "PDF" icon to open the TDS in a new window.
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