Blog
Reclaimed High-Density Geofoam for Interior Basement Wall Insulation? – GreenBuildingAdvisor
- January 8, 2025
- Posted by: wendy
- Category: Uncategorized
WhaleWatch67 | Posted in Energy Efficiency and Durability on
I have the opportunity to buy some reclaimed high-density GeoFoam ($400 for 24 2″ 4×8 sheets) for a basement interior insulation project. My plan would be to use a double layer to get me about R16 with some furring on top of it to provide a place for wiring and drywall.
Are there any issues with GeoFoam vs. any other EPS? I know it’s typically used for below-grade work under foundations, roadways, and the like.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
Search and download construction details
Join the leading community of building science experts
Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.
Replies
-
Expert Member BILL WICHERS | | #1
I don’t see a problem using this material here, it looks like it perform pretty much the same as “regular” EPS would in the same application. You’d just need to have the usual thermal barrier over it, which could be a sheet of 1/2″ drywall.
Bill