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View all NRCan-certified window series and their energy efficiency metrics.
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Product Series
35.7
Avg ER Score
Certified Product Series
A1W-5500HP
Vinyl
Top Variants by Energy Rating
#NR7034-4...
U-Factor: 0.85ER: 42
#NR7034-4...
U-Factor: 0.87ER: 42
#NR7034-4...
U-Factor: 0.81ER: 34
A1W-5500PC
Vinyl
Top Variants by Energy Rating
#NR7034-4...
U-Factor: 0.82ER: 47
#NR7034-4...
U-Factor: 0.82ER: 47
#NR7034-4...
U-Factor: 0.86ER: 46
A1W-350PPC
Aluminum
Top Variants by Energy Rating
#NR7034-4...
U-Factor: 1.06ER: 32
#NR7034-4...
U-Factor: 1.03ER: 32
#NR7034-4...
U-Factor: 1.04ER: 32
A1W-5500TT
Vinyl
Top Variants by Energy Rating
#NR7034-4...
U-Factor: 0.85ER: 42
#NR7034-4...
U-Factor: 0.87ER: 42
#NR7034-4...
U-Factor: 0.81ER: 34
A1W-ULTR
Vinyl
Top Variants by Energy Rating
#NR7034-3...
U-Factor: 1.15ER: 41
#NR7034-3...
U-Factor: 1.17ER: 40
#NR7034-3...
U-Factor: 1.26ER: 38
A1W-350PC
Aluminum
Top Variants by Energy Rating
#NR7034-3...
U-Factor: 1.02ER: 36
#NR7034-3...
U-Factor: 1.03ER: 35
#NR7034-3...
U-Factor: 1.11ER: 34