Here is a brick wall that mostly consists of about a 1 cm layer of plaster. Part of the wall is bare brick. I would like it to be smooth and am considering applying plaster to the brick so that it becomes reasonably even, and then gluing on 6mm renovation plasterboard. Could this be a good idea? Can you glue plasterboards directly onto a plastered wall?
Remove the remaining plaster so all the brick is exposed, then apply regular plasterboard (13mm) in adhesive, such as MultiFix from Bostic!
Or you can dose the clicks with fix depending on the substrate and press/load the gypsum boards (13 mm) with fix (provided that the existing plaster has reasonable load-bearing capacity).
Otherwise, maxit gypsum is very easy to work with!
Otherwise, maxit gypsum is very easy to work with!
13 mm is much stiffer. If you have irregularities in the wall, there is a risk that the 6 mm boards will become wavy when you press them. 6 mm works well if the walls are not very uneven, so you can use a trowel and don’t need to click-glue. If you click-glue 6 mm, you also have very weak walls "between the clicks" (compared to setting up 6 mm sparsely without a backing board).
With 13 mm, you can more easily adjust the boards without them bending and you have a more durable wall.
With 13 mm, you can more easily adjust the boards without them bending and you have a more durable wall.
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