Can OSB boards be laid as flooring on carpet?

So, am I the only one who had this personal experience? :eek:

I treated OSB (several times with parquet lacquer) used as a floor on various substrates (partly tiles, partly carpet) and thought back then like you:

Great, it’s also a kind of impact sound insulation/damping. And I didn’t have to add any other material or level different heights.

Please don’t make the same mistake. That stuff eventually rots (of course depending on the carpet material). It also "smells musty." My carpet was originally not rotten and not of "poor quality," nor too long-piled. I didn’t have problems with the (glued) joints. However, some moisture entering the floor will not always be avoidable. The carpet gets wet through, then passes the moisture from below to the OSB floor, which swells. You really don’t want this mixture of damp carpet and swollen floor. For me, the problems only appeared after more than 10 years, but better don’t do it. Just tear everything out and do a clean installation. Saves nerves and money in the long run.

Over 10 years ago, I installed laminate flooring floating over carpet in two rooms in my mother’s apartment. So far, there is no smell. However, this should not be taken as a recommendation for your project.

"Habitation" you might want to explain once,

The house was built in 1937, last renovated in 1984. At that time, a new oil heating system was installed and carpet was laid on the wooden floors. It was then inhabited for 11 years by a family and 25 years by a single person. Under the wooden floors there is no screed or such but floorboards lie in sand – so it is cold underfoot. The heating circuit was not designed as an outer circuit – meaning radiators under the windows – but as an inner circuit. The radiators are mostly next to the door and the cold comes from the windows – at least double glazing. The further use of the house is not entirely clear – it belongs to the public sector. Our children have the possibility to live here rent-free for at least 2 years. Only additional costs. The charm lies in the location. Absolute solitude with a dreamy view of nature and a river. Inland ships pass by the window. So it should be spruced up with little own funds.

Well, then you just have to adapt your own wishes to the financial and/or craftsmanship and financial possibilities. Under wooden floors, there doesn’t necessarily have to be screed, for example if it lies on sleepers and there is sand in between, that’s nothing bad, that’s how it used to be done, and the sand alone doesn’t make it colder than screed. Maybe you just buy a few rugs and put them where they make sense so that it becomes more pleasant for your feet. If you start there, you can probably rather rent a nice apartment and pay rent; renovating costs money for materials and labor. I’d say: don’t look a gift horse in the mouth....... The intention to spruce up also depends especially on your own craftsmanship possibilities.....

Is it about your daughter's house? Maybe it would be more sensible if she registers here?