How Many Inches Of Cellulose In Attic

Bag dimension 14 x 15 x 28 long or 3 4 cu ft.

How many inches of cellulose in attic.

Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics. It can be located on a card left by the previous installer printed on the attic insulation or you can measure it yourself. You can do it yourself for about 500. 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.

If the attic is already insulated you ll want to check the current r value. According to the u s. That was filled up 99 with just a few inches for ventilation. How much does attic insulation cost.

Small gray flat pieces or fibers from newsprint cellulose 3 7 x depth. 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. Vermiculite or perlite 2 7 x depth. Actions 2013 sep 12 4 25 pm.

The cellulose product home comfort insulation uses is treated with 100 borate fire retardant formula. R 30 9 5 deep 30lb. For loose fill such as ecofill multiply the depth by a minimum of r 2 67 per inch. Dense gray or near white may have black specs.

According to the insulation institute the cellulose has the r value of 3 7 and this translate to 16 inches for r60. Fortunately attic insulation can be upgraded simply by adding more to achieve the recommended. 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. On the other hand the lose pink or white fibreglass has r value of 2 5 that requires.

Light weight yellow pink or white. For loose fill cellulose this translates to a total depth ranging from 8 inches up to 16 inches. Depth inches total insulation r value. Fiberglass 2 5 x depth.

Rock wool 2 8 x depth. Take your measuring tape and measure how deep it is. When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding. R 20 2 x 6 wall 30lb bg 40 bags 30lb.

I had about r 19 in my attic and the most i could add was 8 10 of cellulose on top of that. 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. Blown in insulation overview.

It is pulverized into a fine powder that adheres and remains a part of the insulation. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.