How Many Inches Of Blown Insulation In Attic

That is about 10 to 12 inches of blown insulation. Click the button to calculate the depth in inches and pounds of total insulation required for this job. Add the right kind of insulation.

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To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter.

How many inches of blown insulation in attic.

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. This calculator is to be used as an estimating tool only. Wy mt nh me wi etc.

Input length width and desired r value of the area to be insulated. I would add insulation to at least the code minimum. The higher the r value the better the thermal performance of the insulation. Most of ga al ar sc ok etc to a high of 49 for zones 6 8 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. That is about 13 to 15 inches of blown insulation. The zone you live in will determine how much insulation you need in your attic. Input length width and desired r value of the area to be insulated.

First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e. You can get the code minimum number from your local insulation professional.

Input depth of existing blown in insulation in inches. Click the button to calculate the depth in inches and pounds of total insulation required for this job. Inspecting your attic insulation. What to do for your home.

This calculator is to be used as an estimating tool only. When adding additional insulation you do not have to use the same type of insulation that currently exists in your. In the far north the code minimum for new homes is as high as r 44. 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.

Click the button to calculate the approximate r value for this job. This calculator is to be used as an estimating tool only.

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