this post was submitted on 14 Nov 2025
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Hey, I've got a cold room in my place that is concrete on all sides, I'm going to be framing it in and insulating and I don't really need any help there unless there's anything cold room specific I should know, however.

As you can see I have a floor that appears to be a stepped concrete pit, filled with quite a lot of dirt, and what I believe is probably a tie in to the sewage drain.

Can I just get rid of the dirt? The whole room spells like petrichor because of it.

Assuming the pit continues to step down, can I just build the floor over it regardless, and do I need to support the pipe in some way if the dirt is removed?

Or, if I'm completely off base please let me know what I should be doing.

Thanks

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[โ€“] TheJesusaurus@sh.itjust.works 6 points 15 hours ago (1 children)

I realize now that wasn't clear, it is a "cold room" by design. Its not insulated with the rest of the house. The door on the room was heavily insulated and it was vented to the outside to maintain an outside temp

[โ€“] clay_pidgin@sh.itjust.works 1 points 12 hours ago

Neat! I've not heard of a cold room before, but it sounded like it might exist.