Performance Data
U-Value
A number which describes in specific terms, the ability of a material or assembly
to transmit heat from outside to inside surfaces. Assemblies with lower U-values
transmit less heat than those with higher values. Please see the charts below for each product's specific U-Values:
Energy Star Qualification Chart - Classic-Craft American Style
Energy Star Qualification Chart - Classic-Craft Mahogany
Energy Star Qualification Chart - Classic-Craft Rustic
Energy Star Qualification Chart - Classic-Craft Oak
Energy Star Qualification Chart - Classic-Craft Canvas
Energy Star Qualification Chart - Fiber-Classic Mahogany
Energy Star Qualification Chart - Fiber-Classic Oak
Energy Star Qualification Chart - Smooth-Star
Energy Star Qualification Chart - Pulse
Energy Star Qualification Chart - Profiles
Energy Star Qualification Chart - Traditions
R-Value
A number which describes in specific terms, the ability of a material or assembly
to insulate heat. Assemblies with higher R-values insulate more heat than those
with lower values.
1 ÷ (U-Value) = R-Value
Solar Heat Gain Coefficient (SHGC)
A measure of how well a glazed door assembly absorbs or reflects heat from the sun.
The lower the coefficient, the better the glazed door is at blocking the sun's heat.
Glazed doors in hot or temperate climates should have a low SHGC; south-facing glazed
doors in cold climates should have a high SHGC. Please see the charts below for
each product's specific Solar Heat Gain Coefficients:
Energy Star Qualification Chart - Classic-Craft American Style
Energy Star Qualification Chart - Classic-Craft Mahogany
Energy Star Qualification Chart - Classic-Craft Rustic
Energy Star Qualification Chart - Classic-Craft Oak
Energy Star Qualification Chart - Classic-Craft Canvas
Energy Star Qualification Chart - Fiber-Classic Mahogany
Energy Star Qualification Chart - Fiber-Classic Oak
Energy Star Qualification Chart - Smooth-Star
Energy Star Qualification Chart - Pulse
Energy Star Qualification Chart - Profiles
Energy Star Qualification Chart - Traditions
Sound Transmission Class (STC)
A measure representing how much noise is stopped by something. The higher the number
the better: the scale is logarithmic, meaning each number is significantly higher
than the next, like the Richter Scale for earthquake measurement.
STC Ratings & Reports
Design Pressure (DP)
Design Pressure (DP) ratings are based on a Therma-Tru door systems’ performance
in Structural Wind Load. As an example: A DP50 structural performance rating indicates
that the door system has passed a structural test pressure of 75 lbs. per. sq. ft
which is equal to a 165 mph wind. The Design Pressure ratings for Therma-Tru door
systems can be found by reviewing the evaluation reports or installation instructions
found in the product approvals:
Product Approvals
Fire Door Rating
A measure of how long a door can prevent the passage of flame and smoke from one
side of the door assembly to the other. Fire doors are usually rated for 20, 45
or 90 minutes.
Fire Door Rating & Listing Reports:
20 Minute Steel Positive Pressure
20 Minute Steel Neutral Pressure
20 Minute 6'8" Fiberglass
20 Minute 8'0" Fiberglass
California Wildland Urban Interface
A Building Code requirement in California that provides protection for homes from
wildfires.
All of our fire doors are approved and meet the requirements of the California Wildland
Urban Interface.
In addition all of our standard opaque foam core fiberglass doors have been tested
to the California State Fire Marshall test for California Wildland Urban Interface
approve exterior doors (CA SFM 12-7A-1) and also meet the requirements of the California
Wildland Urban Interface.
CA SFM 12-7A-1 Test Report
Performance Resources
Don't forget to check out all of our
Energy Star
qualified products and
building codes
section of the site for the latest product approvals and energy efficient products.
