4.2 - FOUNDATION
  Number of households by region
Canada Atlantic Quebec Ontario
Dwelling has a basement for foundation
Yes 8,049,590 A 643,679 A 1,821,114 A 3,357,553 A
No 1,044,710 A 131,136 A 148,358 A 191,408 M
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 84,755 M - U - U - U
Not stated 866,090 A 38,181 M 293,102 A 279,386 M
Dwelling has a crawl space for foundation
Yes 1,012,506 A 87,503 A 93,982 A 316,960 A
No 8,081,794 A 687,313 A 1,875,491 A 3,232,002 A
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 84,755 M - U - U - U
Not stated 866,090 A 38,181 M 293,102 A 279,386 M
Dwelling has concrete slabs for foundation
Yes 1,080,642 A 64,557 A 322,548 A 210,462 A
No 8,340,745 A 721,360 A 1,773,737 A 3,405,271 A
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 155,516 M - U - U - U
Not stated 468,242 A 24,819 M 158,173 M 176,833 M
Dwelling has pillars for foundation
Yes 129,110 M - U - U - U
No 9,292,278 A 771,611 A 2,056,655 A 3,575,528 A
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 155,516 M - U - U - U
Not stated 468,242 A 24,819 M 158,173 M 176,833 M
Other type of dwelling foundation
Yes 136,199 A - U - U 40,579 M
No 9,285,188 A 768,873 A 2,071,511 A 3,575,154 A
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 155,516 M - U - U - U
Not stated 468,242 A 24,819 M 158,173 M 176,833 M
Dwelling has no foundation
Yes 74,353 M 17,467 M - U - U
No 9,347,034 A 768,450 A 2,064,462 A 3,608,477 A
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 155,516 M - U - U - U
Not stated 468,242 A 24,819 M 158,173 M 176,833 M
Basement/crawl space is heated
Yes 8,007,674 A 565,132 A 1,940,077 A 3,185,514 A
No 740,444 A 119,768 A - U 254,820 A
Valid skip 4,643,188 A 261,187 A 1,362,843 A 1,489,105 A
Don't know 19,045 M - U     - U
Not stated 763,456 A 48,094 M 210,743 A 342,976 A
Any of the basement/crawl space outside walls insulated on the inside
Yes 6,760,033 A 472,962 A 1,668,840 A 2,662,464 A
No 805,168 A 63,183 A 192,876 M 338,834 A
Valid skip 5,464,196 A 386,816 A 1,422,004 A 1,792,694 A
Don't know 339,412 A 17,177 M 59,456 M 141,873 M
Not stated 804,998 A 57,188 A 218,109 A 344,531 A
Percentage of outside basement/crawl space walls insulated
25 percent or less 110,752 A - U - U 52,049 M
26 to 50 percent 506,982 A 39,917 M 71,243 M 295,711 M
51 to 75 percent 496,334 A 32,078 M 129,846 M 259,496 A
76 to 100 percent 4,111,049 A 307,089 A 1,164,548 A 1,312,753 A
Valid skip 6,269,364 A 449,999 A 1,614,880 A 2,131,528 A
Don't know 1,708,115 A 82,447 A 304,363 A 835,030 A
Not stated 971,210 A 74,547 A 264,641 A 393,830 A

Legend:

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

Source:

2015 Survey of Household Energy Use