Thermospan® Model 150

Insulated Sectional Steel Door
Wayne Dalton’s Thermospan® Model 150 polyurethane-insulated, sectional steel door provides excellent thermal efficiency. Featuring an R-value* of 14.16 (U-value* of .0706), the Thermospan® Model 150 is an excellent value when thermal efficiency is important, but strength, rigidity and durability can’t be compromised.



Key Product Features
Max Width: 26’2”
Max Height: 20’1”
Polyurethane insulation, R-value* = 14.16, U-value* = .07
1-1/2” section thickness**
10,000 cycle standard spring
*Wayne Dalton uses a calculated door section R-value and U-value for insulated doors.
**Thickness measured at heavy-duty end stiles
Door Construction

Thermal break separates the inner and outer skins at the top and bottom so virtually no heat or cold is conducted through the section.
Patented foamed-in-place technology bonds the polyurethane core to hot-dipped galvanized inner and outer skins, creating a door that is significantly more efficient than conventional insulated steel doors.
Flush door embossed pinstriping (grooves) on the outer skin adds strength.
Prepainted inner and outer skins are hot-dipped galvanized steel for added corrosion-resistance.
Roll-formed integral struts add rigidity and strength.
18-gauge “wrap-around” end caps offer interior hinge attachment surface and exterior leg for proper seal against jamb.
Joint seal prevents air infiltration and helps save energy.

IECC® Compliant
The Thermospan® 150 meets IECC® requirements for maximum U-factor of operable fenestrations (2015 Section C402.4) with a 3rd party certified tested value of less than 0.37. Thermospan® 150 also meets the ASHRAE 90.1 and IECC® requirement for maximum air leakage for fenestration assemblies (2015 Section C402.5.2 Garage doors) with a 3rd party certified tested value of less than 0.40.


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