Manufacturer Profile
Integral Window Systems
View all NRCan-certified window series and their energy efficiency metrics.
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Product Series
36.1
Avg ER Score
Certified Product Series
INT-AW
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.09ER: 38
#NR7253-4...
U-Factor: 1.23ER: 38
#NR7253-4...
U-Factor: 1.42ER: 37
INT-DH
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.4ER: 34
INTEGRAL-INSERT
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.56ER: 41
#NR7253-4...
U-Factor: 1.59ER: 40
#NR7253-4...
U-Factor: 1.71ER: 36
INT-FC
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.18ER: 43
#NR7253-4...
U-Factor: 1.04ER: 42
#NR7253-4...
U-Factor: 1.26ER: 41
INT-CA
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.2ER: 39
#NR7253-4...
U-Factor: 1.25ER: 38
#NR7253-4...
U-Factor: 1.07ER: 38
INTEGRAL-PIP
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.54ER: 36
INT-DS
Vinyl
Top Variants by Energy Rating
#NR7253-4...
U-Factor: 1.42ER: 34