Rmax®, a Sika® brand

Rmax® Polyiso Insulation Solutions
Building Smarter. Stronger. More Efficient.

For over 35 years, Rmax®, a Sika® brand, has been a trusted leader in polyiso insulation, delivering high-performance solutions for new construction and retro-fit walls, roofs, and foundations. Engineered for energy efficiency, code compliance, and lasting durability, Rmax® products help builders, contractors, and distributors achieve stronger building envelopes, faster installations, and long-term performance across every construction type.

 
Rmax® provides a complete line of polyiso continuous insulation products designed to improve thermal efficiency and simplify construction for commercial, multi-family, and residential projects. From Thermasheath® for the building envelope, ECOMAXci® FR for interior exposed use,  ECOMAXci® FR Air Barrier Solution and composite ECOMAXci® Ply for NFPA-285-tested commercial wall assemblies, Rmax® delivers versatile solutions that combine insulation and protection in one system. TSX-8510 offers a clean, fire-tested surface ideal for exposed interior applications, while Rmax Below Grade Insulation Protection ensures moisture-resistant performance for exterior wall, foundations and under-slab conditions. Every Rmax® product is engineered for ease of installation, consistent quality, and reduced material waste—helping contractors and builders save time, meet codes, and enhance project sustainability.

 

KEY ADVANTAGES

Why Rmax® Polyiso Insulation

- Maximum R-Value Efficiency: High thermal performance per inch for thinner walls and stronger envelopes.

- Moisture & Air Protection: Closed-cell design resists water absorption and air leaks.

- Code-Compliant Safety: Fire-tested, NFPA 285-approved assemblies for proven reliability.

- Fast, Sustainable Installation: Lightweight, easy to handle, and environmentally responsible.