Super disaster - water pipe burst, screed damp

I would report it to the insurance anyway. Check your contract to see if you are not obligated to do so. It doesn’t mean they have to pay, but they might. Especially if it should turn into a legal dispute or expert knowledge is needed (and wants to be paid) this can really be helpful.

And again, my condolences :-(

Hello Andreas. If I had read all the postings on this topic more thoroughly, I would have noticed that you have already moved into the house. SORRY. Now it comes down to damage minimization practice at the lowest level. This means: Waiting and seeing if floor coverings lift and possibly show mold stains/mildew at the floor/wall transition. For monitoring, you can also place a hygrometer in the room or rooms, lock these for 24 hours so that they are not used during this period, and record and compare the climate data (temperature + relative humidity) inside the room itself and also outdoors. From the back calculation, a direction can be determined for "the risk" of possibly undetected moisture nests beneath the insulation layer. Before a screed has to be dismantled, all other alternatives should be checked for feasibility. --------------- Regards: KlaRa

Hello Andreas. If I had read all the posts on this topic more thoroughly, I would have noticed that you have already moved into the house. SORRY. Now it comes down to a damage minimization practice at the lowest common denominator. That means: waiting and watching to see if floor coverings lift and possibly show mold stains/mildew at the floor/wall junction. For monitoring, you can also place a hygrometer in the room or rooms, close them off for 24 hours so they are not used during this period, and record and compare the climate data (temperature + relative humidity) inside the room itself and also outdoors. The back calculation already provides some guidance for "the risk" of potentially undetected moisture nests beneath the insulation layer. Before screed needs to be taken out, all other alternatives should be examined for feasibility. --------------- Regards: KlaRa

Hi,

I took the liberty of marking the obvious damage areas on the plans. I conservatively estimate that there are easily 30-40 sqm where the floor is likely damp.

Regards,

Andreas

A question on the side:
Apparently, this concerns the rooms in the basement?
What kind of floor construction do the rooms have?
Are they subordinate rooms like, for example, similar to a laundry room, technical rooms, etc., or are the rooms inhabited, having a screed on an insulation layer?

Hi Klara,

it's about the upper floor (OG), ground floor (EG), and basement (KG).

Water damage occurred in the bathroom on the upper floor (OG), then the water ran into the ground floor (EG) and the basement (KG).

Not much is likely to have happened in the basement; the water stood about 5 mm on the tiles, but they are heavily sealed with silicone towards the wall (baseboard made of tiles). We completely removed the water. I am not worried about the floor.
However, the rooms do have screed on an insulation layer, partly even with underfloor heating.

The upper floor (OG) is the worst case, where the screed insulation is extensively wet, and possibly also the ground floor (EG), because the water ran along the downpipe through the basement ceiling (= EG floor) into the basement. No one knows now whether the water went completely down into the basement or what portion hid in the screed structure of the ground floor (EG).

Only tiled floors are affected by the water leak. The parquet and laminate have not received a single drop of water directly. There is currently almost no visible damage, apart from some damp spots on the walls.
Our problem now is that the screed insulation and the screed have absorbed a lot of water.

Best regards,

Andreas