Sign In to join the community | Help
Heating & Cooling

Green Fiber Insulation approx for uninsulated interior walls


As new home owners we recently discovered our 1930s cottage has uninsulated walls. How do I figure the R value and amount of green cellulose insulation in Tennessee for absolutely uninsulated interior walls?

Our attic is redone and insulated, we just need to do approx 520 Sq ft of interior walls downstairs. Its seems tiny enough we could do ourselves. I'd prefer to not take off siding from exterior. 

Any input or suggestions is greatly appreciated!


Not what you were looking for ? Try posting a question
Posted 2016-02-13T20:34:46+0000  by brolo305 brolo305

Hey brolo305,

Thanks for your question and welcome to the community.

Batted insulation is different than blown-in insulation in terms of how the R-value is applied. Batted (rolls) come pre-made in their respective R values.

With blown-in insulation, it's up to you the thickness of an area being installed that determines the R-value. Obviously, the thicker or more you apply of your GreenFiber Blown In Insulation will determine the R-value.

To read more about how to use and get the right R-value for your uninsulated walls, refer to the image below.

We've also got a great Insulation Calculator that is pretty specific here on our website.

Since you live in Tennessee, you'd be in Zone 3, unless you live in the eastern mountain areas in and around the Great Smoky Mtns. Below is the image of zone maps, and click here to view this great insulation calculator to find out how much insulation you'd need.

Insulation Zone Map

This information should get you started on insulating your walls. However, if you have any further questions, please let us know.


Posted 2016-02-13T21:50:20+0000  by Joseph_HD_ATL
Not what you were looking for ? Try posting a question