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37 replies
9k views
37 replies
Hole for Crawl Space
Member
· Blekinge
· 10 117 posts
If you take up an entire cassette, you replace it with something that has a smaller hole in it but is designed to still hold. If you make a hole in a cassette, you risk it collapsing. However, I don't think the idea of taking up an entire cassette is very realistic.R rqx said:
No, it's not realistic but I wanted to know so I understood. There should be ways to make holes afterward in prefabricated elements, reinforce the hole or something one would think.J justusandersson said:
Member
· Blekinge
· 10 117 posts
I live in a house on erge-bjälklag built in 1967!
The entrance to the crawlspace is through the foundation wall in the garage where the boiler room is also located!
If you have any garage or storage, take it that way.
If the crawlspace is damp, it's guaranteed to smell like an arsle until you get it sorted out, which can take time.
The entrance to the crawlspace is through the foundation wall in the garage where the boiler room is also located!
If you have any garage or storage, take it that way.
If the crawlspace is damp, it's guaranteed to smell like an arsle until you get it sorted out, which can take time.
Hi, the garage is on a slab connected to the house, so I have to go down into the slab first. It will be a heck of a big and deep hole to make.
I don't think the crawl space is so damp right now, but the sill plates had a moisture content of 18%, so I want to prevent this.
I don't think the crawl space is so damp right now, but the sill plates had a moisture content of 18%, so I want to prevent this.
That's what the hatch to my crawlspace looks like!R rqx said:
I've carried out surely two tons of construction debris with mold and fungi.... So I'm glad the entrance isn't in the living house.

The easiest way is probably to make a hole from the outside? If you're going to make a hole from the garage, you first have to break away a slab that's at least 60x60cm and then get through the foundation wall. If there's underfloor heating in the garage, it will be difficult...
Member
· Blekinge
· 10 117 posts
Drilling a hole in a ground slab is straightforward compared to drilling in an ergebjälklag, unless there is underfloor heating, of course.
It's probably easiest from the outside but we have a small garden so we would probably prefer in the garage but of course, we need to think about it. There is no underfloor heating. What should be considered when drilling in the slab? Nothing? And in the crawl space, is it just to make a hole anywhere?
Construction veteran
· Åland
· 2 077 posts
Make a small well/cassoon on the outside and make a hole in the wall. Ensure it's done so no water flows in. Contact the floor slab supplier/designer. Forget about making a hole in the garage's concrete slab and then in the edge beam (which is thick/high) and thereafter in the foundation wall. Moreover, a crawl space foundation SHALL be accessible!


