Replacing wood nailers at the building perimeter with DERBI-Eliminailer-T increases the structural integrity of the roof perimeter, significantly reduces the risk of failure and helps protect the entire roof system from costly damages and blow-off. 1.5” DERBI-Eliminailer-T replaces one wood nailer and allows 1.5” of polyiso and ½” cover board or up to 2” of Polyiso. Available in 2.5” and 5.5” flange widths.