Loose Fill Cellulose Insulation R Value

This is higher than other common loose fill insulation such as fiberglass which averages.

Loose fill cellulose insulation r value.

This is r value loose fill cellulose insulation read this before you buy what you should know about r values the chart shows the r value of this insulation. Input depth of existing blown in insulation in inches. The thermal conductivity of loose fill cellulose is approximately 40 mw m k r value. In laboratory testing the average r rating for cellulose insulation is between 3 2 and 3 8 per inch.

R 49 rsi 8 63 15 381 13 5 342 9 12 5 1 163 79 9 86 1 802 8 8 13 1 2 76 8 82 7 r 60 rsi 10 5 18 3 464 3 16 5 417 9 10 0 926 100 3 107 9 2 261 11 04 10 3 1 97 1 104 6 application coverage chart fact sheet greenfiber product ins551ld loose fill cellulose insulation r value 75 f mean temperature minimo de espresor mm. For loose fill insulation each manufacturer must determine the r value of its product at settled density and create coverage charts showing the minimum settled thickness minimum weight per square foot and coverage area per bag for various total r values. Loose fill fiberglass has an r value of r 2 2 to 2 7 per inch3. This doesn t represent the whole picture of thermal performance.

There are other factors to consider. This calculator is to be used as an estimating tool only. 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. The r value of loose fill cellulose is r 3 2 to 3 8 per inch2.

Loose fill fiberglass by comparison provides an r value of 2 2 to 2 7 per square inch. R means resistance to heat flow. Click the button to calculate the approximate r value for this job. Compare insulation r values before you buy.

Achieving the desired r value depends on both the depth of the insulation and its density. However like other loose fill insulation it also has a tendency to settle over time reducing its r value and its ability to prevent air movement. Loose fill fiberglass by comparison provides an r value of 2 2 to 2 7 per square inch. Imperial r3 8 per inch which is about the same as or slightly better than glass wool or rock wool.

The higher the r value the greater the insulating power. As a loose fill insulation cellulose provides high insulating values represented by its higher r value and it creates a good barrier against air leaks and infiltration. When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding insulation.