DASMA Thermal Verification Partnership

Overhead Door™ Brand has joined the Door & Access Systems Manufacturers Association (DASMA) Thermal Performance Verification (TPV) Program

The Door & Access Systems Manufacturers Association (DASMA) announced their new Thermal Performance Verification (TPV) Program in their summer 2022 magazine issue. DASMA members implemented the program to create higher thermal standards for the residential garage and commercial door industry and to even the playing field. The program uses third-party testing to evaluate and certify the thermal transmittance (U-factor) of select sectional doors. Overhead Door™ Brand joined the voluntary program alongside seven other residential garage and commercial door manufacturers.

In compliance with DASMA’s new Thermal Performance Verification Program (TPVP), Overhead Door™ Brand will now publish U-factor ratings for select insulated sectional doors.

The Thermal Performance Verification Program applies to both residential and commercial sectional doors. The TPVP goes beyond the traditionally published R-Value and provides third-party validation of an entire door’s true thermal performance.

U-factor is a measurement of the thermal transmittance of an installed door assembly. The lower the U-factor the better the insulation which is the opposite of the traditional R-value where the higher the value the better.

The program will de-emphasize the industry’s use of R-value and move to the U-factor rating as the measure of a door’s true thermal performance.

Effective immediately, we will emphasize U-Factor on many of our residential and commercial products. U-factor represents a complete door thermal performance measuring a door’s ability to conduct or transmit the flow of heat from one side to the other, while R-value represents an individual door section rating related to heat resistance.

Overhead Door™ Brand models have been tested by a certified, third-party lab for thermal performance U-factor rating per ANSI/DASMA 105.

The following chart provides a comprehensive list of Overhead Door™ Brand residential and commercial models that have successfully completed third-party ANSI/DASMA 105 testing. We will use the attached badge/Icon to signify verified U-Factor testing.

Overhead Door™ Brand offers a complete line-up of sectional doors designed for thermal efficiency and air infiltration resistance.

DIFFERENCE BETWEEN U-FACTOR AND R-VALUE GARAGE DOORS

FIND OUT MORE ABOUT THERMAL PERFORMANCE – DASMA TDS-163

Residential Garage Doors		Commercial Doors
U-factor	Collection	U-factor	Collection
0.93 (½" insulated glass) / 0.85 (½" Low-E insulated glass)	Modern Aluminum	0.29	Insulated Steel-Back
0.17 / 0.27	Thermacore®	0.14 / 0.27	Thermacore® Sectional Steel
0.27	Carriage House	0.93 (½" insulated glass) / 0.85 (½" Low-E insulated glass)	Aluminum Glass Doors
0.22 / 0.27	Courtyard® Collection	0.18 / 0.21	Thermacore® Collection Wind Load
0.25	Durafirm® Collection
0.20	Impression Fiberglass
0.21	Impression Steel Collection®
0.29	Traditional Steel
0.21	Courtyard Collection® Wind Load
0.18 / 0.21	Thermacore® Collection Wind Load