What is preferred, rainscreen or rigid foam insulation?
If I have only about 1 1/2 inches to work with, which is preferred; rainscreen and no exterior rigid foam insulation or exterior rigid foam insulation and no rainscreen? This wall could be sheathed with:
1/2 inch plywood, 1/2 inch rain screen and then 5/16 inch Hardie panel.
Or, it could be finished with:
1/2 inch plywood, 3/4 inch foam board, and 5/16 inch Hardie panel.
I know that exterior foam insulation AND a rainscreen is the best option, but I am restricted by door trim and an electrical mast that I do not want to move.
Posted Oct 23, 2012 5:53 PM ET
Edited Nov 14, 2012 1:29 PM ET
Other Questions in Green building techniques