How Many Inches Of Cellulose In Attic

Blown in insulation overview.

How many inches of cellulose in attic. Fiberglass and cellulose insulation have r values of 2 9 to 3 8 per inch while sprayed foam insulation can go as high as 8 0 per inch. When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding. For loose fill such as ecofill multiply the depth by a minimum of r 2 67 per inch. Cellulose will settle after installation creating a dense continuous layer helping to block air transfer through any holes into your attic.

On the other hand the lose pink or white fibreglass has r value of 2 5 that requires. It is pulverized into a fine powder that adheres and remains a part of the insulation. Dense gray or near white may have black specs. Actions 2013 sep 12 4 25 pm.

Rock wool 2 8 x depth. It can be located on a card left by the previous installer printed on the attic insulation or you can measure it yourself. R 13 2 x 4 wall 30lb bg 27 bags. Fortunately attic insulation can be upgraded simply by adding more to achieve the recommended.

Small gray flat pieces or fibers from newsprint cellulose 3 7 x depth. You can do it yourself for about 500. R 20 2 x 6 wall 30lb bg 40 bags 30lb. Bag dimension 14 x 15 x 28 long or 3 4 cu ft.

Light weight yellow pink or white. 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. R 30 9 5 deep 30lb. Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics.

That was filled up 99 with just a few inches for ventilation. How much does attic insulation cost. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself. 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.

The pros charge 1 500 to 2 000 to do a 1 200 sq ft. Take your measuring tape and measure how deep it is. Vermiculite or perlite 2 7 x depth. Depth inches total insulation r value.

I had about r 19 in my attic and the most i could add was 8 10 of cellulose on top of that. Bg 30 bags. If the attic is already insulated you ll want to check the current r value. Fiberglass 2 5 x depth.

For loose fill cellulose this translates to a total depth ranging from 8 inches up to 16 inches. The cellulose product home comfort insulation uses is treated with 100 borate fire retardant formula.