15 minutes into test burn. Exterior eave/soffit & rafter assembly. There is no flame penetration through the Firefree Exterior coated eave assembly on the left. Uncoated eave assembly is fully engulfed in flame.
Flame has penetrated through the outside eave assembly on the left and into the attic space. The Firefree Exterior coated eave assembly on the right has prevented fire and ember intrusion.