Total Unit U- and R-values
Back to Window Glossary
The U- and R-values of the window calculated from the average of the center of glass, edge of glass and frame U- and R-values. It is the reciprocal of the R-value.
Definition Total Heat Loss
See What Installations We've Done Near you
View Our Recent Work
Get a Free Estimate for Your Home Improvements
Schedule Your Free Estimate
See More Reviews
Kanwal Just said...
"The overall experience was great ............"