The extension to my house has had an extremely faulty drainage, which has resulted in the threshold beam + part of the wall studs being damaged by rot. The extension stands on a crawl space foundation of lecastone. The extension is about 8x4 meters and there is rot in all three walls. I will replace the threshold beam and cut off about 60cm of the wall stud at the bottom and splice in a new healthy piece. I plan to reinforce the joint with a piece of plywood on both sides of the joint, nailed in place.

Is this a good solution? :D

Does anyone have a better idea?
 
Just replaced a piece of the sill on my house; rain had leaked in behind the brick-built entrance steps. However, I didn't use any plywood or similar but cut the old sill at an angle and sawed the same angle on the new piece that I put in.
Made an outstandingly nice picture in the extremely complicated drawing program Paint, but you might understand what I mean anyway. The picture is seen from above.

Drove a couple of screws through the angle, seems to hold perfectly.
 
  • Top view sketch of a replaced joist section, showing angled cuts and connection in a minimalistic diagram created in Paint.
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