Sawdust Insulation (Or Other Natural Options) in Earthen Floor Installation?

by ziggy on July 25, 2011 -- 0 comments -- Follow

To keep myself from typing the same thing over again, I’m going to simply copy the text of an email I sent to Bill and Athena Steen, in my hope to determine an appropriate natural insulation layer in an earthen floor installation.

– – – –

I’ve been living in my cob house for two years now, and I’m preparing to re-do the earthen floor. We think it’s a source of the major moisture issues we’ve been experiencing. It currently doesn’t have a vapor barrier, and that’s the main reason we are considering re-doing it.

Actually, I have two questions about our floor project. One is: if you use vapor barriers, what is your preferred type of membrane?

And more importantly, do you insulate your earthen floors? Can you recommend a material that would be suitable? I am not thinking a light clay straw insulation layer would be appropriate, because of the thickness necessary, and thus the change in floor height. Have you ever heard of anyone doing a sawdust-clay insulation layer? I did a sawdust insulation layer over the earthen oven I built two summers ago, but I’ve never heard of anyone doing something similar in a floor.

Any ideas? We want to avoid manufactured products as much as possible. (Not possible with the membrane, of course.)

– – – –

Well, there you have it. Ideas greatly welcomed!

Send Me More Updates Like This!

Previous post:

Next post: