Hello!

I have an edging board cast into the concrete slab (slab on ground), with the upper side level with the slab. It is currently pressure-treated but lacks a moisture barrier, so it is damp. The moisture barrier is instead above the edging board, i.e., between the edging board and the sill.

The sill is healthy, the edging board is damp. This is not currently a problem because the damp edging board is not in the indoor environment but only on the outer edge of the concrete slab. See picture!

I am now planning to move the front door a few meters, and then the damp edging board will end up indoors, and that doesn't feel good at all with the risk of "new" odors.

I need to lift the entire house at the entrance 1-2 cm to be able to remove the edging board, but what should I replace it with? Is there a plastic edging board available that neither contributes to moisture in the sill nor introduces new odors? The dimension is 2"6, and it should withstand the pressure from an outer wall.

Am I thinking correctly, or is there something else to do?

/A
 
  • Wooden edge board embedded in concrete slab with visible moisture damage and insulation above. Discussing replacement options for indoor relocation.
Isn't it best to replace the kantbräda entirely with concrete, that is, to remove the bräda and pour concrete in the space that remains afterward? If it's practically possible, I think that's the best option.
 
Mmm, maybe it's not so bad after all. I've been hesitant because it will get crowded.

As I wrote, I expect to lift the house 1-2 cm. It's doubtful if anything can be put in place and leveled out. I thought that maybe there was some kind of massive plastic board 2"6 that could easily replace the edge board, but maybe it doesn't exist.

I'm probably not daring to lift more at the entrance; otherwise, all the seals in the house might crack. Lifting the whole house all around is not easily done. It would be a huge job.

/A
 
It should be considered that it is now completely forbidden to build in pressure-treated wood into the structure, so I would probably have removed it as well.
 
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