Reversible doors have a pre-foamed polystyrene slab of 1.0# test density filling the inside of the door. The core is secured to the face sheets with a waterproof adhesive applied with automated spray equipment. "U" Factor = .24C -- "R" Factor = 4.17 C.
Doors are beveled1/8" in 2" on lock edge for neat fit and security with 1/8 clearance at head, 3/32" clearance at jambs, 1/4 clearance at meeting edges of pairs and 3/4" floor clearance.
Doors are treated with metal prep zinc-chromate wash primer to produce a long lasting surface.