Installation of plasterboard on new interior wall

[Danii KD]

Apparently, one should raise the drywall a few centimeters from the concrete floor due to moisture. My question is, what do you use under the raised portion if you're not laying a new floor? The second question is, if you apply floor leveling compound after erecting the wall, can the compound damage the drywall? Should you let the compound flow under the drywall?

 

[nimhed]

It is not wrong to mount the drywall boards a few cm up and leave a gap underneath. The baseboard will cover it anyway.

 

[nimhed]

My goal is also often to avoid a ceiling molding, so I adjust the plasterboard as best as possible up to the top, so that only a soft joint is needed, then it will be as it will at the floor level.

 

[Stefan1972]

But what kind of moisture do you have in that case that only rises into the gypsum boards?

 

[nimhed]

There are more benefits than moisture to leaving a space.

 

[Danii KD]

But what kind of moisture would only get into the drywall then?

Not only through the drywall but under the sill, I have foundation paper. The drywall is particularly sensitive to moisture.

 

[Stefan1972]

Yes, of course, it is moisture-sensitive, but if there is that much moisture in the slab, I think one should probably consider that first.

 

[Danii KD]

Of course, it's moisture-sensitive, but if you have so much moisture in the slab, I think you should consider that first.

Mostly thinking of it as a precaution, I really have no idea about the moisture content but it doesn't feel like a too demanding measure either. However, I'm quite unsure about self-leveling compound affecting the area underneath the plasterboard. I don't know how it impacts.

 

[RoBo]

Raising the plasterboard is to ensure a tight seal at the ceiling as mentioned above or to allow more room for movement, for example, with parquet floors. I've never heard that it has anything to do with moisture. If you are going to use leveling compound, you try to get the plasterboard as close to the slab as possible as it makes sealing easier.