Fully applied membrane substitute
When applying exterior insulation, the PERSIST method specs a fully adhered membrane covering the sheathing to control air, moisture and water. These self adhered membranes can be costly, so I’m wondering if there is any risk in using the peel and stick membrane where it’s needed and then less expensive draining type house wrap in the field of the wall.
This might be trickier to install but right now I’m just interested in the performance of these materials – would it matter that the house is wrapped in 2 materials with very different perm ratings?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part