Saferwood Thermex-FR by Chemco
Thermally modified
Fire tested
SaferWood certified
Non hazardous
Thermory + SaferWood™ Fire Retardent Protection
Thermory partnered with SaferWood to deliver ignition-resistant, Class A thermally modified wood for projects with the most stringent code compliance requirements.
approved SPECIES:
Scots Pine
White Ash
Application:
Decking
Cladding
Porch Flooring
Soffit
USE:
Interior
Exterior
PROVEN PROTECTION. UNMATCHED PERFORMANCE:
- Saferwood with Thermex-FR is a one time permanent treatment.
- Permits the use of Ignition resistant FRTW in California’s very high FHSZ and all WUI designated areas across the United States.
- Approved for use in all California WUI/FHSZ-Fire Hazard Severity Zones.
- Thermex-FR is non-leachable, non-toxic, and non-hazardous, as proven by independent 3rd party and Department of Ecology test results.
- First FRTW evaluated by the International Code Council (ICC) as IWUIC compliant per ICC ESR-1159; subsequently validated by QAI CERus-1031.
- Only company to pass California’s 10-year Natural Outdoor Weathering Test; SaferWood with Thermex-FR is the only code compliant FRTW (Western Red Cedar Shingles) allowed in California for Class A Roofing.
PROVEN PROTECTION. UNMATCHED PERFORMANCE:
PROVEN PROTECTION.
UNMATCHED PERFORMANCE:
- Saferwood with Thermex-FR is a one time permanent treatment.
- Permits the use of Ignition resistant FRTW in California’s very high FHSZ and all WUI designated areas across the United States.
- Approved for use in all California WUI/FHSZ-Fire Hazard Severity Zones.
- Thermex-FR is non-leachable, non-toxic, and non-hazardous, as proven by independent 3rd party and Department of Ecology test results.
- First FRTW evaluated by the International Code Council (ICC) as IWUIC compliant per ICC ESR-1159; subsequently validated by QAI CERus-1031.
- Only company to pass California’s 10-year Natural Outdoor Weathering Test; SaferWood with Thermex-FR is the only code compliant FRTW (Western Red Cedar) allowed in California for Class A Roofing.
Benchmark Pine
Warm up your space with distinctive knots, golden color, and natural charm.





Benchmark Ash
This gorgeous hardwood sets the bar for longevity and stability



Compatible with CUTEK® Extreme
SaferWood Thermex-FR is approved for use with CUTEK® Extreme. Independent third-party testing confirmed that treated wood finished with CUTEK® Extreme maintains the same Class A surface-burning rating required for code-compliant fire-retardant-treated wood, with both technologies performing without affecting one another.
For projects in fire-prone regions, that means you can protect the rich color of thermally modified wood and slow natural weathering while keeping the fire protection your code requires. CUTEK® Extreme’s deeply penetrating oil controls moisture movement from within the wood, reducing cupping, warping, splitting, and checking.
Thermally Modified
Heat. Steam. Cool. Done.
Thermal modification is a chemical-free process that gives you the beauty of real wood, naturally enhanced with only heat and steam for unequaled strength and stability—even in changing weather conditions. And with greater insulating properties compared to unmodified wood, our wood is never too hot on your feet.
Sustainably Sourced
The right wood. The right way.
We source all our wood using responsible forestry practices, never laying a finger on our tropical woodlands and rainforests. And wood is the only naturally renewable building material that doesn’t generate hazardous waste. So, when you choose Thermory, you’re not just investing in quality, but in the health of our planet, too.
*All certifications are held and maintained by Thermory USA’s parent company, Thermory AS.