2251/4251 R-value - 6.85
PANEL CONSTRUCTION
Each model utilizes a 25 gauge exterior steel skin. Chosen for their weather resistant features, models 2251/4251 utilize a 1-3/8" thick polystyrene insulation with vinyl back covers.
11-ball bearing nylon rollers
Door sections are formed from heavy, 25-gauge galvanized draw quality steel
Section joints are roll-formed into a tongue-and-groove design which produces a superior weather seal
Inside stiles are made of galvanized steel and stile holes are "dimpled" for increased holding power
Bottom weather seal utilizes an aluminum retainer and extruded virgin vinyl
Extra-heavy paint system consists of .25 mil. primer with rust inhibitor and a .75 mil. coating of baked-on polyester paint in your choice of white, almond, sandstone, or brown
14 gauge commercial hardware
Door sections are formed from heavy, 25-gauge galvanized draw quality steel Section |