How Many Inches Of Blown Insulation In Attic

Click the button to calculate the approximate r value for this job. Most of ga al ar sc ok etc to a high of 49 for zones 6 8 i e. You can get the code minimum number from your local insulation professional.

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Click the button to calculate the depth in inches and pounds of total insulation required for this job.

How many inches of blown insulation in attic.

This calculator is to be used as an estimating tool only. This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e. 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. When adding additional insulation you do not have to use the same type of insulation that currently exists in your.

That is about 10 to 12 inches of blown insulation. Input length width and desired r value of the area to be insulated. The zone you live in will determine how much insulation you need in your attic. What to do for your home.

The higher the r value the better the thermal performance of the insulation. Then to really seal the attic access up tight says olson lay fiberglass batt insulation on the inside of the hatch or door and wrap it up tight like a christmas present photo 3. 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.

This calculator is to be used as an estimating tool only. To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter. Click the button to calculate the depth in inches and pounds of total insulation required for this job. Add the right kind of insulation.

Inspecting your attic insulation. This calculator is to be used as an estimating tool only. For loose fill cellulose this translates to a total depth ranging from 8 inches. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended.

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. That is about 13 to 15 inches of blown insulation. Input depth of existing blown in insulation in inches. Input length width and desired r value of the area to be insulated.

In the far north the code minimum for new homes is as high as r 44. I would add insulation to at least the code minimum.

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