How Much Insulation Is Needed In The Attic

How much insulation in attic for zones 5 7.

How much insulation is needed in the attic.

The higher the r value the better job the insulation does at preventing the transfer of heat. You can do it yourself for about 500. Most of ga al ar sc ok etc to a high of 49 for zones 6 8 i e. The thicker the better.

The average recommended level is 17 inches of r60. 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 zone you live in will determine how much insulation you need in your attic. The pros charge 1 500 to 2 000 to do a 1 200 sq ft.

Contractor or insulation installer s fee. 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. R value is a measure of insulation s ability to resist heat traveling through it. The insulation in your attic should be at least 12 thick.

Type and material of your insulation. Blown in insulation overview. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e.

The table below shows what levels of insulation are cost effective for different climates and locations in the home. Inspecting your attic insulation. The higher the r value the better the thermal performance of the insulation. Insulation level are specified by r value.

In zone 6 the average minimum requirement for attic insulation is 14 inches of r49 fill. How much does attic insulation cost. How well a particular insulation works is expressed by the r value which ranges from 2 0 to 8 0 per inch of insulation. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

Wy mt nh me wi etc. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. According to home advisor insulating your attic can cost between 1700 to 2100. How much insulation do i need in my attic.

The average recommended level is 17 inches of r60. 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. The main factors that impact the cost are. In zone 5 the average minimum requirement for attic insulation is 11 inches of r38 fill.

Square footage of your attic.