Plaster detachment on brick wall in the middle of kitchen renovation

[Träbo]

We are renovating the kitchen in a 1926 brick house. When we removed cabinets and tiles, the plaster behind the tiles came off, and in several other places, the plaster feels loose when you knock on it. See attached image. The brick wall under the plaster is quite uneven.

Now we are considering how best to address this. Since the wall will be hidden behind new kitchen cabinets anyway, the appearance is not very important. However, we would like to, if possible, avoid being without a kitchen for several weeks due to the long drying time for new plaster, but at the same time not risk creating a mold hazard if there is moisture migration through the bricks. We have seen some black mold on the plaster, especially near the ceiling and floor where it was closed off behind cabinets.

Is there any simpler or quicker alternative than replastering the entire wall? We have looked a bit at cement or fiber cement boards, would that be a reasonable option here, and can they then be mounted over the remaining plaster and over the bricks?

What would you do in this situation? We gratefully receive tips from those with experience!

 

[neo11]

3 mm plaster bruk c is dry in 1-3 days.
Depending on thickness.
But pre-water before.

 

[Magnus E K]

I know almost nothing about plaster. But hope that Arne and Jonas find this thread!

 

[Träbo]

3 mm render mortar c is dry in 1-3 days.
Depending on the thickness.
But pre-water before.

Is render mortar c sufficiently diffusion-open for this type of old brick walls?

 

[neo11]

Yes, until you paint on the mortar, it is what it is. But on bricks, you should pre-wet a lot, and preferably prime with loose mortar.