Easiest/best way to attach plasterboards to a leca wall?

[Olf Oggler]

I have some interior walls in my basement that I plan to install drywall on. The walls are built with lightweight concrete blocks (leca). I don't think they are too even. Previously, chipboard sheets were mounted "shimmed" 20mm from the wall. I have torn down the chipboard and the studs/battens attached to the leca are not secured properly. There isn't much to screw into either.

Is there any good method?

 

[C.Lundin]

If it is leca, which sounds a bit strange, you use countersunk aerated concrete screws.
Sounds like it's left open whether one should do it at all...

 

[jimmie.p]

Fasten the boards with gipsbruk, it holds well and goes quickly.

 

[Olf Oggler]

Why does it sound strange with leca? The entire basement is built with leca. Exterior walls and interior walls.

 

[Stefan N]

Leaves it open whether it should be done at all..

Polishing up the walls is significantly better even if they are interior walls, as one cannot rule out moisture migration through the slab.

 

[Olf Oggler]

Attach the boards with plaster, it grips well and is quick.

How do you make it even with plaster? How do you level the boards, I mean?

 

[Stefan N]

You place kluttar on the back and align with långpass.

 

[Olf Oggler]

Doesn't it sound easier than it is, that? I want to place the boards flush against the concrete ceiling. How do you fix the boards before the joint compound sets? The boards will slide down, right? And regarding electrical outlets... Yes, there is a lot that needs to align.

 

[Mikael_L]

Smooth the entire wall until it's straight and even!

Use plaster that is as strong as possible for the substrate, so it will be suitable for making reasonably semi-strong fastenings.

 

[twoody]

But why do you want drywall.

 

[Papphammar666]

Why does it sound strange with leca? The entire basement is built with leca. Exterior walls and interior walls.

I have leca and mortar with the same problem

 

[Olf Oggler]

I was thinking of drywall since that's what's on the other walls in that room. I thought it would create some uniformity and not have different walls, etc. Another aspect is that lecamurar are incredibly noisy. A drywall helps a little at least. Especially if you seal carefully everywhere.

How difficult is it to plaster really? How thick does the plaster need to be on such an interior wall? And what do you do with electrical conduits, etc.? How deep do they need to be?

What kind of mortar should be used? Feel free to suggest a specific product. Is reinforcement needed?

 

[Mikael_L]

https://www.byggahus.se/forum/threads/staemmer-dessa-pastaende.333656/#post-3183413

 

[twoody]

Otherwise, you can use steel studs, which will give you insulation space for electricity; the downside is that it adds 45mm + drywall.

 

[Mikael_L]

A stud between the ceiling and the floor often provides a significantly better opportunity to securely fasten things than trying to attach them to LECA.