Micro-Grooved. Thermally-Broken. Polyurethane Sandwich
3212
Thermally-Broken Insulated Steel Sandwich Door
ASTM C518 tested R-Value: 17.54*
- Foamed-in-place CFC free polyurethane core permanently bonds the 20-gauge exterior and 27-gauge interior steel skins to form a rigid homogeneous section
- 2” thick sections are thermally broken to eliminate convection
- Tongue and groove meeting rails with joint gasketing provide superior joint strength and prevent air infiltration
- Concealed hinge attachment plates run the full height of sections for superior strength
- Rigid exterior end stiles are finish painted white
- Glass is available in 7/16” insulated or 1/4” tempered glass
- Glass is easily replaced or substituted by removing molded frames
- Exhaust port is optional for bottom section
- Track options include 2” or 3” bracket or clip angle mount and designed to accommodate virtually any headroom design requirements.
- Heavy duty hardware may be specified with 11 or 14-gauge hinges and 10 ball rollers
- Bottom U-shaped astragal is standard
- Increased windload requirements may be specified
- Available in finish coat color of white
*R-value testing is in accordance with ASTM C518 standards.