EdgeBox RI is an engineered metal alternative to traditional wood nailers. Made of heavy duty 20 Ga. galvanized steel with reinforcing spines that will not rot, twist or split like traditional lumber. ANSI/SPRI/FM 4435/ES-1 tested and Factory Mutual approved with an FM 1-540 perimeter rating and FM 1-360 corner rating. Compatible with most commercial roofing systems, and available in any size to match existing nailers, up to 16-inches square.
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