How to cover holes in the subfloor

[Hoff83]

Hello
I have a hole in the subfloor after the air supply for a stove.

Can I just place wind barrier or something similar over the hole and then insulation on top of that, or should I also close the hole with a board?

 

[para]

Place a disc there and you won't get visits from mice and similar critters.

 

[fribygg]

The easiest way is probably to place a sheet or piece of wood in the compartment that covers the hole before you insulate.

 

[Hoff83]

Put a sheet there to avoid visits from mice and similar critters

Should I seal the joints from the crawl space and if so, with what?

 

[AndersS]

Which junctions?
And I had filled the space with insulation.

 

[Hoff83]

Which joints?
And I would have filled the space with insulation.

The space shall be filled with insulation. I'll take a picture from the crawl space later today but this is what it looked like before I placed the board inside. There will be a gap between the old blindbotten and the board I placed over, right?

 

[Matti_75]

Put something from the underside too

 

[Hoff83]

Put something on the underside too

Thank you, I'll fix it then. I'll put a piece of board there too.