How Much Insulation Is Needed In The Attic

According to home advisor insulating your attic can cost between 1700 to 2100.

How much insulation is needed in the attic.

Type and material of your insulation. R value is a measure of insulation s ability to resist heat traveling through it. If your attic insulation is only a few inches thick or if you can see the ceiling joists you re wasting money on your heating and cooling bills. How much insulation in attic for zones 5 7.

Inspecting your attic insulation. You can do it yourself for about 500. The insulation in your attic should be at least 12 thick. The average recommended level is 17 inches of r60.

Having enough insulation in your attic is one of the best ways to save energy on both heating and cooling your home. Blown in insulation overview. In zone 6 the average minimum requirement for attic insulation is 14 inches of r49 fill. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. The average recommended level is 17 inches of r60. 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. How well a particular insulation works is expressed by the r value which ranges from 2 0 to 8 0 per inch of insulation.

Wy mt nh me wi etc. The pros charge 1 500 to 2 000 to do a 1 200 sq ft. The higher the r value the better job the insulation does at preventing the transfer of heat. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.

The higher the r value the better the thermal performance of the insulation. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. The table below shows what levels of insulation are cost effective for different climates and locations in the home. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

Square footage of your attic. Most of ga al ar sc ok etc to a high of 49 for zones 6 8 i e. The main factors that impact the cost are. The zone you live in will determine how much insulation you need in your attic.

How much insulation do i need in my attic. Contractor or insulation installer s fee. It is not uncommon to see 15 to 20 of insulation in a well insulated attic. The thicker the better.

This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e.