How Much Insulation Necessary For Attic

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

How much insulation necessary for attic.

The higher the r value the better the thermal performance of the insulation. In zone 1 the average minimum requirement for attic insulation is 9 inches of r30 fill. This calculator is to be used as an estimating tool only. Input length width and desired r value of the area to be insulated.

If your insulation doesn t measure up and you need more installation can be done as a weekend diy project or you can call a professional installer to handle the job. The average recommended level is 17 inches of r60. How much insulation do i need in my attic. Square footage of your attic.

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. Dallas texas falls in climate zone three where attics are recommended to have an r value between 38 49 this means a minimum of 12 of insulation. Click the button to calculate the depth in inches and pounds of total insulation required for this job. The thicker the better.

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Contractor or insulation installer s fee. In zone 2 the average minimum requirement for attic insulation is 9 inches of r30 fill. It is not uncommon to see 15 to 20 of insulation in a well insulated attic.

The insulation in your attic should be at least 12 thick. The average recommended level is 14 inches of r49. The main factors that impact the cost are. 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.

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. 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. According to the u s. Add the right kind of insulation.