R-Factor Comparison

PERFECTING THE ENVELOPE
THERMAL BRIDGING ocurrs in walls when thermal energy (heat/cold) travels through more thermally conductive framing passed less conductive insulation. Fiberglass batt insulation has an R-value of 3.5 per inch, but the R-value of studs may be R-1.2 per inch or less. This means that the studs allow heat or cold to move through the wall system three times faster than the surrounding insulation. Though the advertised R-value of 6 inch fiberglass batt is R-19, the effective R-value of a typical wall assembly’s is roughly R-3 to R-4 lower due to thermal bridging. ThermaSteel REVPANELS remove the thermal bridge resulting in higher effective R-value.

AIR INFILTRATION is caused by air leaks, holes, and gaps in the building envelope where insulation sags or pulls away from the top and sides of framing, electrical outlets, and pipes.

 

THERMASTEEL ELIMINATES

THERMAL BRIDGING

5-1/2 inch ThermaSteel Wall = continuous R-value of 24

with an effective R-value of 33

Thermal Bridge

 

 

TRADITIONAL FRAMING PROMOTES

THERMAL BRIDGING

6 inch Wall with R-19 Fiberglass Batt Insulation

has an effective R-value of 13.7

Thermal Bridge

 

r-factor