Division C - Accepted Materials
Korolite KG300 GPS (Airfoam)
by Airfoam Industries Ltd.
| 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
- Airfoam Industries Ltd.
- Accepted for the RoofStar Guarantee Program
- June 11, 2026
- Accepted for application in
- Waterproofing Roof Systems
Water-shedding Roof Systems
- Acceptance Criteria
- None (See Section 7.2. in the RGC Standards for EPS insulation requirements)
- Product Summary
- Korolite® KG300 GPS (Graphite Expanded Polystyrene) is a high-performance, closed cell, rigid foam insulation material that uses air as a main ingredient. GPS insulation resists moisture and mold/fungi growth with low environmental impacts, high & stable Long-Term Thermal Resistance, and good drying potential over the long service lives of buildings. Korolite® KG300 GPS is used in many residential and commercial construction applications (e.g., in walls, the roof, and below-grade insulation including under slabs).
- (adapted from the Technical Data Sheet)
- Conditions and Limitations
- Not for use in Grade-level Waterproofing.
- Technical Data Sheet
- Click the "PDF" icon to open the TDS in a new window.
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