There are two types of basement insulation. There's basement header, and then there's the basement foundation insulation. Both of those were statistically zero, if I recall correctly, and windows and doors had statistically zero savings.
September 24th, 2026 / 3:45 p.m.
Associate Professor of Economics, Carleton University, As an Individual
There are two types of basement insulation. There's basement header, and then there's the basement foundation insulation. Both of those were statistically zero, if I recall correctly, and windows and doors had statistically zero savings.
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