When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect.
Diy blown in attic insulation.
How much does attic insulation cost.
Both can be added to uninsulated attics or layered over existing material.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
Blown in fiberglass blown in fiberglass insulation is found in about 75 of the houses i see.
Ten inches of blown insulation provides an insulating value of approximately r 30 1 inch of fiberglass provides about r 2 7 while 1 inch of cellulose is approximately r 3.
For diy attic insulation you ve got two choices.
This is small pieces of fiberglass that come in a bag and are installed with blower machine.
The blown in fiberglass works much better than the fiberglass batts as you don t have gaps in the coverage.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
If you choose loose fill insulation you ll need to rent a machine to install it.
Each bag of fiberglass insulation will cover approximately 65 square feet of attic space to a depth of 10 inches cellulose insulation covers half as much.
Loose fill blown in insulation is best for tight spaces or if your attic already has a layer of insulation that just needs to be topped off.
Blowing attic insulation isn t hard but it s dusty sweaty work.
The attic is by far the most important space to insulate in the house.
Loose fill or batt the common term for blanket insulation.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Lower your energy bills by following these easy steps to insulate your attic using cel.
You d need a thickness of.