How Many Inches Of Cellulose In Attic

Dense gray or near white may have black specs.

How many inches of cellulose in attic.

Thermoshield cellulose insulation attic calculator. Input length width and desired r value of the area to be insulated. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. Fiberglass 2 5 x depth.

This calculator is to be used as an estimating tool only. Most home centers sell bagged cellulose insulation and many provide the blower for a minimal fee or free when you buy a certain number of bags usually 10 or more. Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics. Depth inches total insulation r value.

Take your measuring tape and measure how deep it is. Bg 30 bags. Vermiculite or perlite 2 7 x depth. Current insulation levels how much you already have will dictate how many more inches you need.

Use this calculator to determine how many bags of thermoshield insulation you will need to insulate your attic for the optimal energy efficiency. R 13 2 x 4 wall 30lb bg 27 bags. Rock wool 2 8 x depth. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

For loose fill cellulose this translates to a total depth ranging from 8 inches. You can also rent the blowers from a rental center. Click the button to calculate the depth in inches and pounds of total insulation required for this job. Small gray flat pieces or fibers from newsprint cellulose 3 7 x depth.

When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding. And you can blow it easily and quickly into odd shaped spaces in an attic where access is limited and dragging up batts is tough. If the attic is already insulated you ll want to check the current r value. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.

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. Typically the cost for air sealing runs from 350 to 1 500.

If you have a complex attic with lots of ductwork bathroom fans and ceiling fixtures more air sealing will need to be. Bag dimension 14 x 15 x 28 long or 3 4 cu ft. Air sealing air leaks are a major cause of losing warm air.