Thermospan® Model 125

Insulated Sectional Steel Door
Ideal for applications where thermal efficiency is important, and competitive cost is essential, Wayne Dalton’s Thermospan® Model 125 sectional door features a foamed-in-place polyurethane core and standard joint seal that provides a substantially higher thermal efficiency than industry standard polystyrene insulated doors, making Thermospan® Model 125 suitable for commercial and industrial applications.
The Wayne Dalton Thermospan® Series doors are the only sectional doors in the industry with patented, roll-formed integral struts on each section, making them the most rigid doors available. The Thermospan® Series also has a patented manufacturing process with a polyurethane core that is continuously foamed-in-place between the outer and inner skins. An innovative thermal break keeps the interior skin at room temperature, preventing condensation and frost and helping to resist corruption.



Key Product Features
Max Width: 16’2”
Max Height: 16’1”
Polyurethane insulation, R-value*=10.79; U-value* = .093
7/8” section thickness
10,000 cycle standard spring
Patented, roll-formed integral struts for rigidity
*Wayne Dalton uses a calculated door section R-value and U-value for insulated doors.
Door Construction

Pre-painted inner and outer skins for added corrosion resistance. Both skins are also hot-dipped galvanized steel for further protection against corrosion.
Solid polyurethane core adds to insulating efficiency
Embossed pinstriping (grooves) on the embossed stucco outer skin adds strength and enhances appearance.
Integral struts – Two 1-3/4” roll-formed struts per section increase rigidity and strength.
18-gauge hot-dipped galvanized steel “wrap-around” end caps offer interior hinge attachment to surface and exterior leg for proper seal against jamb
Standard joint seal prevents air infiltration and saves energy


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