Materials:Paratech Glass Base SA 2.5

Division C - Accepted Materials

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Paratech Glass Base SA 2.5
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 June 13, 2024 Accepted for application in Waterproofing Roof Systems Grade-level Waterproofing Systems Acceptance Criteria RGC ACWP-MOD (RGC ACCEPTANCE CRITERIA for MANUFACTURED POLYMER-MODIFIED, REINFORCED BITUMINOUS SHEET MEMBRANES Used in Roof Waterproofing and Grade-level Waterproofing Systems) Product Summary Paratech Glass Base SA 2.5 is the modified bitumen base ply of the Paratech two-ply modified bitumen roof system and consists of a lightweight random fibrous glass mat impregnated and coated with high quality SBS-modified bitumen. The top surface is covered with a mineral parting agent while the back surface is coated with a self-adhesive bitumen layer and is line with a high-strength polyolefin release film. (adapted from the Technical Data Sheet) Conditions and Limitations None Technical Data Sheet Click the "PDF" icon to open the TDS in a new window.

Notice and Disclaimer: Technical Data Sheets for SBS and APP Polymer-modified bituminous membranes Bituminous roofing membranes are governed by RGC Acceptance Criteria RGC ACWP-MOD (applicable to membranes accepted after July 1, 2023). The CSA Standard for these membranes, CSA A123.23 "Product specification for polymer modified bitumen sheet, prefabricated and reinforced", forms the backbone of the RGC Acceptance Criteria and has replaced the older CGSB Standard CGSB 37-GP-56M, which was withdrawn in 2015. The "British Columbia Building Code" (2024) references the CSA A123.23 Standard in both Part 5 and Part 9 of Division B. The Standard is also published in the National Building Code of Canada (2020), and the City of Vancouver Building Bylaw (2024). Not all manufacturers of SBS and APP polymer-modified membranes publish technical data sheets that fully align with the CSA Standard. Therefore, the reader must verify this information independently of the RGC, to the reader's own satisfaction. Consult the local manufacturer's representative through the "Find a Member" page on the RCABC association website.

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