The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
How much insulation do you need in the attic.
The zone you live in will determine how much insulation you need in your attic.
Most of ga al ar sc ok etc to a high of 49 for zones 6 8 i e.
Wy mt nh me wi etc.
If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.
Deciding how much insulation your attic needs is a matter of knowing the r value of your insulation material and the total r value you need your attic to meet then purchasing enough material to make the equation work.
Blown in insulation overview.
This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e.
Do i have enough.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
If your insulation is just level with or below your floor joists i e you can easily see your joists you should add more.
If you want a customized reading the united states department of energy provides this how much insulation do i need calculator additionally all of the specific residential prescriptive requirements for your county and state can be found on the government s energy codes website.
How much insulation in attic for zones 1 4.
No matter what kind of insulation you currently have in your attic one quick way to determine if you need more is to look across the span of your attic.