Renovating the bathroom and found these dark patches in the joists and roof lumber surrounding the old vent pipe. The PVC part is new.
Anything bad here? Anything we need to address?
Renovating the bathroom and found these dark patches in the joists and roof lumber surrounding the old vent pipe. The PVC part is new.
Anything bad here? Anything we need to address?
Might spray it with some antifungal just to reduce chance of mold forming