Drainage plane between sheathing and rigid foam
I am working on an addition project located in Wisconsin. My plan was to use Huber Engineering Zip wall sheathing.
In reviewing Zip walls installation instructions, I noticed that Zip calls for a minimum eighth of an inch drainage plane between the rigid foam and the sheathing. In my wall section I planned to include a drainage plain (rain screen) on the outside of the 3 inches of rigid foam.
Will the recommended Zip wall drainage plane reduce the effectiveness of my foam insulation?
This is not a typical detail in conventional wall sections using traditional OSB sheathing. Let me know if anyone has any tips. Thanks
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