Blown in insulation is the least expensive option and ideal for older attics.
How much does it cost to replace insulation in attic.
See professionally prepared estimates for attic insulation work.
The cost to insulate an attic starts at 1 68 3 25 per square foot but can vary significantly with site conditions and options.
See typical tasks and time to insulate an attic along with per unit costs and material requirements.
How much does attic insulation cost.
Attic insulation is available in a variety of materials including fiberglass mineral rock wool cellulose spray foam polystyrene and more.
It can cost anywhere from 1 700 to 2 100 or between 1 50 and 3 50 per foot to insulate an attic depending on what insulation material you choose.
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On average most homeowners spend between 813 and 1492 or 1 50 to 3 00 per square foot to install attic insulation.
Cellulose has an r value of 3 2 per inch of depth while fiberglass ranges from an r value of 2 to 2 5 per inch of depth.
Different types of insulation have different r values explains russ lewis of green attics in fort worth texas.