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Unread 01-12-2021, 08:22 PM   #34
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Join Date: Feb 2019
Location: Eastern Shore of Maryland
Posts: 68
For various reasons including hopefully moving the toilet I have removed the subfloor. It is 3/4in Advantech. The floor joists are on 12 in center and are in good shape. Some work needs to be done to make the floor flat. I have a few questions on proceeding
1-For floor joists that are too low are there any methods other than adding a sister joist? Are there ways to add shims or thin strips to the top?
2-Should I go back with Advantech or can I just use 3/4in T&G plywood. Either way another layer of 1/2in plywood is also going down.
3-Are there any problems with adding insulation between the floor joists

I have included a picture of what they did to the floor joist when then plumbed the toilet. They just about cut completely through the joist.
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