How much does insulation cost?
These costs are as of about April, 2010, in the Toronto Area, in Canadian Dollars.
Note the variability in the Cellulose insulation - here is a link to one manufacturer's spec sheet.
http://www.nationalfiber.com/docs/CelPakSpecSheet1209.pdf
Fibreglass: about $0.0141 per sq ft per R1----- thickness to reach R100 (at R3.5/in) : 28.6" (726mm)
Cellulose in walls: density 3.1 lb/CF --> $.0195per SF per R1, thickness to reach R100: 28.6"
Cellulose in attics: density 1.4 lb/CF ---->$.0063per SF per R1, thickness to reach R100: 28.6"
- Based on $7/22lb bag
Ridgid XPS Foam: about $0.128 per sq ft per R1 ----thickness to reach R100: 20" (508mm)
More on this later....
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