Materials:Irex 40

Division C - Accepted Materials

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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.

Manufacturer Siplast Accepted for the RoofStar Guarantee Program October 21, 2022 Accepted for application in Roof Waterproofing Systems Acceptance Criteria Product Summary "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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