Is Heat-Sheet a Radon Barrier?
![SLAB-ON-GRADE](https://heat-sheet.com/wp-content/uploads/2022/04/product-page1.jpg)
Heat-Sheet functions perfectly well as under-slab insulation and can even serve as the vapor barrier, but it is not an adequate Radon barrier.
How Do I Detail Heat-Sheet Correctly in Order to Eliminate the Layer of Poly?
![](https://heat-sheet.com/wp-content/uploads/2021/12/How-To-Detail-To-Eliminate-The-Layer-Of-Poly-1024x673.png)
A popular feature of Heat-Sheet is that it can eliminate the need for a layer of poly/vapor barrier.