How Many Inches Of Cellulose In Attic

R 30 9 5 deep 30lb.

How many inches of cellulose in attic.

Vermiculite or perlite 2 7 x depth. The cellulose product home comfort insulation uses is treated with 100 borate fire retardant formula. R 20 2 x 6 wall 30lb bg 40 bags 30lb. Loose fill cellulose is relatively inexpensive yet still has an r value of about 3 5 per inch of thickness compared to fiberglass r value between r3 to r4 per inch.

Actions 2013 sep 12 4 25 pm. Fiberglass 2 5 x depth. If the attic is already insulated you ll want to check the current r value. Dense gray or near white may have black specs.

When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding. Cellulose will settle after installation creating a dense continuous layer helping to block air transfer through any holes into your attic. According to the insulation institute the cellulose has the r value of 3 7 and this translate to 16 inches for r60. How much does attic insulation cost.

Rock wool 2 8 x depth. For loose fill such as ecofill multiply the depth by a minimum of r 2 67 per inch. Fortunately attic insulation can be upgraded simply by adding more to achieve the recommended. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

The pros charge 1 500 to 2 000 to do a 1 200 sq ft. R 13 2 x 4 wall 30lb bg 27 bags. That was filled up 99 with just a few inches for ventilation. Department of energy it s recommended that attics have an r 38 to r 49 or about 12 to 15 of fiberglass or cellulose insulation.

It can be located on a card left by the previous installer printed on the attic insulation or you can measure it yourself. I had about r 19 in my attic and the most i could add was 8 10 of cellulose on top of that. It appears that 16 deep is to get r60 for attic loose fill cellulose insulation and 24 deep is to get r60 for attic loose fill fibreglass insulation. According to the u s.

For loose fill cellulose this translates to a total depth ranging from 8 inches up to 16 inches. Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics. Blown in insulation overview. Take your measuring tape and measure how deep it is.

Bg 30 bags. Small gray flat pieces or fibers from newsprint cellulose 3 7 x depth. Bag dimension 14 x 15 x 28 long or 3 4 cu ft. You can do it yourself for about 500.

Light weight yellow pink or white. Depth inches total insulation r value.