Table 4.3b – Attic 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
Dwelling has an attic
Yes 860,140 A 868,813 A 1,819,616 A 754,306 A 1,416,343 A 530,148 A 1,153,781 A 594,065 A 62,256 M
No 238,177 M 158,365 A 280,793 A 128,096 M 200,379 A 96,235 M 210,942 M 135,191 M - U
Valid skip Footnote 1 351,215 A 696,690 A 1,228,618 A 646,612 A 641,225 A 207,244 M 513,253 A 442,201 A 289,468 M
Don’t know - U - U - U - - - U - U - U - U - U
Not stated - U - U 92,966 M - U - U - U - U - U - U
Dwelling has an insulated attic
Yes - on the attic floor 564,819 A 624,749 A 1,414,709 A 581,850 A 950,845 A 395,186 A 672,828 A 333,905 A - U
Yes - on the attic walls 53,818 M - U - U - U - U - U - U - U - -
Yes - on both the attic floor and walls 155,158 M 128,943 M 202,096 M 83,679 M 192,479 A 71,362 M 231,196 M 103,368 M - U
No - U - U - U - U - U - U - U - U - -
Valid skip Footnote 2 589,391 A 855,055 A 1,509,411 A 774,709 A 841,604 A 303,479 A 724,195 A 577,393 A 296,068 M
Don’t know - U 55,980 M 111,650 M 47,142 M 173,239 M - U 188,288 M 114,080 M 1,495 U
Not stated - U 45,367 M 146,687 M 34,247 M 95,657 M - U - U - U - 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