Insulate pile foundation

[Pappa1986]

Hello there.

I'm about to start working on the extension.

At the bottom of the studs, I'll attach a board, and the question is what should I put there? Asfaboard, subfloor board, or fiber cement board?
Do I then tape between the board and the stud to make it completely sealed against mice?
After that, you proceed with insulation and floor chipboard.
Thanks in advance

 

[Pappa1986]

Is it recommended to have age-resistant plastic on the ground and just throw on some gravel, or should one skip the plastic?

 

[Rickard.]

Fiber cement must be theoretically the best option but also the most troublesome and expensive. I would choose based on the conditions what "level" feels reasonable. I would skip Asfaboard because the boards are so flimsy and require a lot of support.

The blind bottom should not only be mouse-proof, but it should also be airtight, but there's probably no exact guide on how to make one, there are alternatives.

Träguiden has good pictures to look at for inspiration. (here are 3 different solutions)

 

[Pappa1986]

Fiber cement must be the theoretically best option but also the most troublesome and expensive. I would choose based on the conditions which "level" feels reasonable. I would skip Asfaboard because the panels are so weak and need a lot of support.

The blind bottom should not only be mouse-proof but also airtight, but there probably isn’t an exact school on how to do it; there are alternatives.

Träguiden has good pictures to look at for inspiration. (here are 3 different solutions)
[image]

Thanks for the answer. Will probably go with oil-hardened subfloor panel. The fiber cement only cost 15kr more per panel but feels like more hassle. Will probably use construction adhesive before laying the panels and then screw them in place and tape the seams.