Division C - Accepted Materials
Irex 40
by Siplast, 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
- Siplast
- Accepted for the RoofStar Guarantee Program
- October 21, 2022
- Accepted for application in
- Roof Waterproofing Systems
- Acceptance Criteria
- Product Summary
- Irex 40 replaces Paradiene 20, which was previously accepted by the RGC.
- "Irex 40 is a modified bitumen, heavy duty base sheet or base ply. Irex 40 consists of a lightweight random fibrous glass mat impregnated and coated with a specialty formulated styrene-butadiene-styrene (SBS) modified bitumen." (from the Technical Data Sheet)
- Conditions and Limitations
- see "Standard for SBS-modified Bitumen Membrane Roof Systems" for specific requirements concerning use and application of this material.
- Technical Data Sheet
- Click the "PDF" icon to open the TDS in a new window.
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