Can you use rigid insulation only? Exterior wall in zone 1
Jenjen0223
| Posted in Energy Efficiency and Durability on
We are enclosing a screened porch, reinforcing exterior walls on a 1969 trailer and then we plan on putting up rigid insulation over plywood sheathing and existing aluminum
GBA Detail Library
A collection of one thousand construction details organized by climate and house part
Search and download construction details
Replies
Jennifer,
Yes, you can use a continuous layer of exterior rigid foam on the exterior side of your wall as your only insulation layer. Your plan will work. I advise you to install at least 2 inches of rigid foam, and to pay attention to airtightness when installing the foam.