4.5 - WINDOWS
  Number of households by region Number of households by year of construction
Manitoba / Saskatchewan Alberta British Columbia Before 1950
Type of windows that are the majority in the dwelling
Standard single pane with a storm window 34,830 M 67,961 M U 152,032 M
Standard single pane U U U 45,340 M
Standard double pane 150,825 A 326,793 A 307,969 A 278,989 M
Standard double pane sealed unit 143,466 A 345,013 A 610,741 A 292,061 M
Standard triple pane sealed unit 110,319 A U U
Low-Emissivity (Low-E) coating - gas filled double pane 37,524 M 100,312 M 101,861 M 182,415 M
Low-Emissivity (Low-E) coating - gas filled triple pane 72,289 M U U U
Standard gas filled double pane U U U 68,029 M
Standard gas filled triple pane U U U U
Other U U U U
Don't know 51,147 M 188,133 M U 81,972 M
Not stated U U U U
Age of the majority of the windows
5 years or less 172,159 A 168,048 M 391,963 M 262,525 A
6 to 10 years 99,480 A 255,405 A 179,845 M 236,096 M
11 to 15 years 102,368 M 235,427 A 241,124 M 165,191 M
16 or more 233,234 A 458,847 A 485,472 A 396,341 A
Don't know 54,342 M U 139,877 M 105,650 M
Not stated U U U U
Condensation on inside surfaces of windows
Yes - on most 86,823 A 174,323 M 153,275 M 103,042 M
Yes - on some 295,452 A 626,219 A 689,739 A 586,104 A
No 488,423 A 630,553 A 965,897 A 722,906 A
Don't know U U U U
Not stated U U U U
Air leaks or drafts around windows
Yes 350,665 A 553,073 A 452,010 M 719,084 A
No 519,741 A 817,975 A 1,259,026 A 649,876 A
Don't know U U U U
Not stated U U U U

Note:

Due to rounding, the numbers may not add up and may differ slightly among tables.

Legend:

The letter beside each estimate classifies its quality as follows: A–Acceptable, M–Use with caution, U–Too unreliable to be published.

Source:

2011 Survey of Household Energy Use