If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
How much cellulose insulation in attic.
R values of common types of insulation.
Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics.
You can do it yourself for about 500.
Loose fill cellulose is relatively inexpensive yet still has an r value of about 3 5 per inch of thickness compared to fiberglass r value between r3 to r4 per inch.
Sopra cellulose calculator use the appropriate calculation tool below depending on the type of application to determine how many bags of thermal insulating cellulose you will need to perform your insulation work.
Blown in insulation overview.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
Cellulose insulation can settle by as much as 20 percent depending on how it is installed.
This could leave gaps in a wall as the insulation compacts vertically or it could leave space between a floor and the insulation beneath it.
Inspecting your attic insulation.
The recommended r value for attic insulation in ontario is between r 50 and r 60.
How much does attic insulation cost.
Generally speaking a higher r value means better insulating properties.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.