4.3 - ATTIC
  Number of households by region
Canada Atlantic Quebec Ontario
Dwelling has an attic
Yes 8,130,121 A 698,782 A 1,701,560 A 3,279,971 A
No 1,363,491 A 98,380 A 426,578 A 365,358 A
Valid skip 4,128,662 A 180,934 A 1,275,992 A 1,405,021 A
Don't know 124,539 M - U - U - U
Not stated 426,995 A - U 146,862 M 156,350 M
Dwelling has an insulated attic
Yes - on the attic floor 5,933,153 A 531,259 A 1,331,862 A 2,341,815 A
Yes - on the attic walls 177,517 A 18,951 M - U 48,199 M
Yes - on both the attic floor and walls 913,273 A 91,652 A 145,001 A 399,631 A
No 171,177 A - U 97,803 A 48,000 M
Valid skip 5,492,152 A 279,314 A 1,702,569 A 1,770,380 A
Don't know 802,123 A 32,432 M 82,807 M 370,422 A
Not stated 684,413 A 31,366 M 181,795 A 301,950 M

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