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by toomuchtodo 748 days ago
No need to remove the tunnel if you prefer not to. Rigid foam to a depth that meets the R value for your zone and AHJ requirements (“local code”). Check if any inspection is required before drywalling over the rigid foam.
1 comments
voisin 747 days ago
Thank you
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toomuchtodo 747 days ago
Happy to help, enjoy the project!
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