Loose Fill Cellulose Insulation R Value

With loose fill cellulose insulation you can achieve an r value of 3 2 to 3 8 per square inch.

Loose fill cellulose insulation r value.

Loose fill fiberglass has an r value of r 2 2 to 2 7 per inch3. 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. Input depth of existing blown in insulation in inches. Achieving the desired r value depends on both the depth of the insulation and its density.

This is higher than other common loose fill insulation such as fiberglass which averages. Imperial r3 8 per inch which is about the same as or slightly better than glass wool or rock wool. R means resistance to heat flow. The r value of loose fill cellulose is r 3 2 to 3 8 per inch2.

The thermal conductivity of loose fill cellulose is approximately 40 mw m k r value. 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. The higher the r value the greater the insulating power. This calculator is to be used as an estimating tool only.

When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding insulation. Compare insulation r values before you buy. 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. 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.

Click the button to calculate the approximate r value for this job. Insulation depth depending on your climate energy codes require varying r values for ceiling insulation. In laboratory testing the average r rating for cellulose insulation is between 3 2 and 3 8 per inch. There are other factors to consider.

Loose fill fiberglass by comparison provides an r value of 2 2 to 2 7 per square 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. This doesn t represent the whole picture of thermal performance.