Flooding in the basement, what needs to be done with the drywall?

Grillen · 2021-08-18T19:57:05+00:00

NOTE NOTE!! You don't need to point out that this is a risky construction regarding flooding as we are aware of the risks and have taken them into account, the likelihood of something like this happening is minimal, and it's the worst rainfall in 25 years. In the future, we will be more prepared with drain sealing and door sealing which we hadn't received yet. But now to the problem. When the rain god decided to dump all of Sweden's precipitation right above our city last night in just a few hours, the basement flooded, naturally 1 week after we finished furnishing one of the rooms. In the room, it's framed with steel studs and then 2 layers of plasterboard, and on the floor, there is a textile carpet that can handle basement floors as it breathes. A claim has been initiated with the insurance company, and we are currently emptying water as fast as we can. About 10 cm reached the plasterboard walls and it remained like that for about 18 hours before we had the opportunity to pump out the water. The problem now is that we won't be able to get hold of a heater/dehumidifier as all of Gävleborg has been chasing these throughout the day, so it will stay damp for a while going forward. What needs to be done with the plasterboard and carpet when it has been like this for so long? I personally feel that it must be replaced as the risk of mold growth on the back of the boards will be very high and probably not possible to sanitize this to 100%, or what do you experts say about this? The same question applies to the carpet on the floor which I won't be able to get dry for a while, just superficially scraped but will remain damp throughout anyway. I'm waiting for the insurance company's claims adjuster to contact me, but I'd like to have some ammunition when it's time to decide what needs to be replaced, so that one doesn't just stand helplessly agreeing to something that in the long run will give me even more problems. Is it just a matter of drying up with a fan and it will work fine, or do the walls need to be torn down and rebuilt? In the pictures below, we've just managed to remove some of the water and there it's about 4-5 cm high, but for about 18 hours there was between 10-15 cm high water.

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Matti_75

#16

Construction veteran · Örebro

· 5 237 posts

22 Aug 2021 at 11:08 AM

Matti_75

Construction veteran

Örebro
5,237 posts

22 Aug 2021 at 11:08 AM

Just put a "plåtande" in the seam

Flooding in the basement, what needs to be done with the drywall?

Matti_75

Matti_75

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