Table 4.5b – Windows By Construction Year
Number of households by year of construction | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Before 1946 | 1946-1960 | 1961-1977 | 1978-1983 | 1984-1995 | 1996-2000 | 2001-2010 | 2011 or later | Not stated | ||||||||||
Number of windows in dwelling | ||||||||||||||||||
No windows | - | U | - | U | - | U | - | U | - | U | - | U | - | U | - | U | - | U |
1 to 5 windows | 130,509 | M | 311,303 | M | 842,981 | A | 446,345 | A | 401,692 | A | 118,577 | M | 224,343 | A | 268,554 | A | 175,510 | M |
6 to 10 windows | 445,274 | A | 540,933 | A | 1,090,954 | A | 461,072 | A | 697,217 | A | 255,886 | A | 591,831 | A | 296,449 | A | 75,192 | M |
11 to 15 windows | 508,100 | A | 518,828 | A | 914,020 | A | 396,282 | A | 558,021 | A | 214,736 | A | 528,884 | A | 224,416 | A | - | U |
16 to 20 windows | 216,430 | A | 189,074 | M | 274,090 | A | 100,447 | M | 301,800 | A | 139,016 | M | 308,011 | A | 172,355 | M | - | U |
21 to 25 windows | 86,371 | M | 50,333 | M | 84,923 | M | - | U | 173,195 | M | - | U | 130,020 | M | 89,308 | M | - | U |
26 to 30 windows | 35,278 | M | - | U | - | U | - | U | 47,927 | M | - | U | 40,017 | M | - | U | - | U |
30 windows or more | - | U | - | U | - | U | - | U | 40,932 | M | - | U | - | U | - | U | - | U |
Don’t know | - | U | - | U | - | U | - | U | - | U | - | U | - | U | - | U | - | U |
Not stated | - | U | - | U | 94,532 | M | - | U | - | U | - | U | - | U | - | U | - | U |
Type of windows that are the majority in the dwelling | ||||||||||||||||||
Standard single pane with a storm window | 206,415 | M | 140,231 | M | 232,894 | M | 127,357 | M | 104,016 | M | - | U | - | U | - | U | - | U |
Standard single pane | 126,705 | M | 186,172 | M | 253,768 | A | 155,491 | M | 141,686 | M | - | U | 158,263 | M | 106,499 | M | 55,502 | U |
Standard double pane | 877,809 | A | 983,200 | A | 2,139,586 | A | 928,328 | A | 1,453,203 | A | 544,594 | A | 1,153,153 | A | 663,505 | A | 144,508 | M |
Standard double pane sealed unit | - | U | 120,614 | M | 295,766 | A | 125,324 | A | 231,897 | A | 94,121 | M | 162,641 | M | 146,064 | A | - | U |
Standard triple pane sealed unit | - | U | - | U | 78,329 | M | - | U | 52,683 | M | - | U | - | U | - | U | - | - |
Valid skip Footnote 1 | - | - | - | U | - | U | - | U | - | U | - | - | - | - | - | U | - | U |
Don’t know | 87,643 | M | 155,488 | M | 249,934 | A | 137,492 | M | 212,302 | M | 77,451 | M | 199,275 | M | 161,864 | M | - | U |
Not stated | 53,000 | M | 130,249 | M | 170,906 | A | 48,725 | M | 108,734 | M | - | U | 75,597 | M | - | U | - | U |
Age of the majority of the windows | ||||||||||||||||||
5 years or less | 163,624 | M | 194,598 | A | 491,113 | M | 253,054 | M | 323,695 | A | 86,413 | M | 61,476 | M | 396,897 | A | - | U |
6 to 10 years | 112,958 | M | 196,389 | M | 356,736 | M | 94,372 | M | 145,841 | M | - | U | 140,696 | M | 292,316 | A | - | U |
11 to 15 years | 133,913 | M | 191,531 | M | 272,908 | A | 81,649 | M | 100,663 | M | - | U | 555,962 | A | - | U | - | U |
16 or more | 420,795 | A | 397,460 | A | 751,619 | A | 463,563 | A | 885,994 | A | 465,588 | A | 282,767 | A | - | U | - | U |
Valid skip Footnote 1 | - | - | - | U | - | U | - | U | - | U | - | - | - | - | - | U | - | U |
Don’t know | 198,560 | M | 279,112 | A | 486,823 | A | 231,832 | A | 247,542 | A | 87,033 | M | - | U | - | U | 212,178 | M |
Not stated | 465,199 | A | 494,168 | A | 1,061,982 | A | 418,219 | A | 600,787 | A | 158,571 | A | 832,827 | A | 407,096 | A | - | U |
Frequency of use of blinds or curtains against solar heat | ||||||||||||||||||
Daily | 773,379 | A | 968,627 | A | 1,697,894 | A | 787,054 | A | 1,234,238 | A | 452,469 | A | 1,089,636 | A | 634,482 | A | 201,947 | M |
Weekly | - | U | - | U | 83,118 | M | 62,520 | M | 80,585 | M | - | U | - | U | - | U | - | U |
Occasionaly | 234,511 | A | 237,939 | A | 576,139 | A | 293,708 | A | 417,992 | A | 179,258 | M | 339,069 | A | 213,148 | M | - | U |
Valid skip Footnote 2 | 340,671 | A | 395,775 | A | 933,789 | A | 359,381 | A | 441,514 | A | 181,588 | A | 404,806 | A | 249,126 | A | - | U |
Don’t know | - | U | - | U | - | U | - | U | - | U | - | U | - | U | - | U | - | U |
Not stated | - | U | - | U | 122,075 | M | - | U | 110,317 | M | - | U | 53,503 | M | 60,311 | M | - | U |
Legend:
The letter beside each estimate classifies its quality as follows: A–Acceptable, M–Use with caution, U–Too unreliable to be published.
Notes:Due to rounding, the numbers may not add up and may differ slightly among tables.
Source:2019 Survey of Household Energy Use