u/Cute_Sector8641

I am planning the re-siding of my house. I am going to install Zip Sheathing then 1/2 foam board on top of it for a little added R-value. My main question is can I put the Genstone directly on the foam board without rainscreen? It is the moisture I am worried about. I am not worried about screwing through the foam board as I will just lengthen the screws used.

I am planning the re-siding of my house. I am going to install Zip Sheathing then 1/2 foam board on top of it for a little added R-value. My main question is can I put the Genstone directly on the foam board without rainscreen? It is the moisture I am worried about. I am not worried about screwing through the foam board as I will just lengthen the screws used.