What to do with rotten sill plate?
In the middle of finishing my basement and I was cleaning up excess mortar around the sill plate (4×6) and I discovered about a 4ft section of sill plate that’s rotten, the worst of it concetrated in the middle of the section where up to an inch of the plate looks to be rotted out. I carved out all the rot I could with a screw driver to assess how deep the rot went.
Is it best to replace this 4ft section with new PT lumber with a sill plate? Does it look like there’s enough of the plate to put some EDPM under what remains and use non-shrink grout?
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