Installing HT pipe inside the wall (concealed)

Hello people, the following problem,

I want to reroute my drain for the kitchen (DN50) differently, so now the problem is I have a wooden beam ceiling and a low room height where it is very difficult to lay it somehow above the floor. My plan was/is along the wall with the appropriate slope but there I have the problem that I cross wooden beams. So I have to stay in front of them, now I would have to apply about 6cm of plaster so that the pipe disappears into the wall. (Gypsum board or similar coverings are out of the question for me, I have that crap and it annoys me every day. Can you apply 6cm thick plaster in several layers, is that possible?

Thanks already

So of course you can apply 6cm of plaster to the wall, but:

- you then have quite some drying times
- it is also the question of how well/long it will last

What speaks against drywall for you? Properly installed, it is wonderful and compared to 6cm of plaster, also more durable. With 6cm of plaster, it becomes a "challenge" to attach something to the wall. And I think it is also more susceptible than drywall.

Well, with drywall construction I always see the aspect that a) mice like to move around behind it b) you don’t see the masonry or its condition c) hanging cabinets are awkward or you need OSB underneath to make it proper. I understand the drying times, I would prepare the substrate anyway with primer and then incorporate mesh; previously there was about 6-7cm of lime plaster in some places, but it was cracked (there was no mesh inside) and yes, I would prefer a more solid wall.

Hi

But you won't be able to attach a wall cabinet to 6-7 cm of lime plaster either.

Olli

Yes, I know that, that's why I would use lime cement plaster and take the anchor anyway 10cm or longer so that I am in the masonry and not just in the plaster.

Are there cabinets standing in front?