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Few residential building codes require a class A fire rating. Yet some consumers want the additional peace of mind that fire retardant products can provide.
Always check with your local building codes. A Class Fire Rating is required for most commercial buildings. It is not generally required for residential buildings.
Fire-rated polyurethane foam products, unlike those coated with a fire retardant, have fire retardant properties throughout the beam.
In independent laboratory testing, once the ignition flame was removed, the fire-rated polyurethane foam did not continue to flame.
Flame Stop® II protects both exterior and interior woods. It's a water-based, post-treatment, interior/exterior fire retardant and wood preservative that penetrates the material and bonds with the cellular structure. This product penetrates the substrate and creates a self-extinguishing reaction when the treated material comes into contact with an open flame.
It is non-toxic, non-combustible, non-carcinogenic, and contains no PBDEs (polybrominated diphenyl ethers), which are toxic to humans and the environment.
Fire retardant Flame Seal® coatings blister and bubble when touched by fire. This bubbling action functions as a buffer between our beams and the fire.
Flame Seal is a non-toxic, water-based, fire retardant coating that’s available on our Rustic, Raised Grain and Rough Sawn beams for added protection.