Render on wood wool, with mesh or without?

[gogu]

Hello!
I've installed new träullit boards to be plastered about 10mm in the basement.
Considering skipping the mesh. Has anyone plastered on träullit without mesh?
When I've plastered leca, I've never used mesh and it holds just fine, I think it should adhere well to träullit too! What do you think? Anyone with experience?

 

[hscn]

I have plastered with regular lime plaster indoors without mesh, and it has worked well. However, with hydraulic lime plaster, it has not worked as well. Hairline cracks following the joints between the wood wool boards. I assume that cement plaster behaves more like hydraulic lime plaster. Greater chance of avoiding cracks with mesh.

 

[gogu]

I have plastered with regular lime plaster indoors without mesh, and it has worked well. With hydraulic lime plaster, however, it has worked poorly. Hairline cracks that follow the joints between the träullit boards.
I assume cement plaster behaves more like hydraulic lime plaster. Greater chance of avoiding cracks with mesh.

Ok thanks for the answer! What did you have behind the boards? I have leca blocks. The boards shouldn't move then, I think.

 

[hscn]

We have an old timber house, it is certainly true that Leca provides better conditions, but I assume that Träulliten can also move a little.

 

[Isakare]

The entire basement in my previous house had plastered träullit without mesh, there were no cracks, plastered in 1959, concrete hole stones behind.

 

[cpalm]

Fine cracks that follow the seams between the wood wool panels.

Same thing here. Lime plaster on plank frame externally and maybe plastered sometime in the 50s. Cracks along the panel seams.
However, in the basement where there is concrete block and internally there is no indication of cracking.

 

[gogu]

Same here. Lime plaster on a plank frame externally, and maybe plastered sometime in the 50s. Cracks along the panel joints. However, in the basement where there are concrete hollow blocks, there are no indications of cracking.

Ok. Sounds like you could dare to try without mesh. It's a bit tricky to get the mesh to stay flush everywhere. It tends to show up somewhere. So nice if you can avoid it.