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42 replies
Is it normal to install a windowsill (granite slab) on a single drywall (only 1 layer of drywall)?
All walls are equally bad; I've sorted out some Molly plugs, so I know how it's constructed..., single plasterboard...J jackolako said:Understand that it falls under my responsibility to investigate, and I actually pointed it out during the apartment viewing. They knew nothing, of course... I know I can handle this so it's not really a big problem. BUT, I'm a professional demolisher, however not a carpenter... I want to know, do they really build like this, or would you call this a botched construction? I would never mount the TV on the wall, for example. And any tips on a solution, please
// Jack
I think this is the right solution. It's a shame to have to fix it yourself, but probably easier than arguing.J jackolako said:
I assume it's a condominium. At the same time, it's a bit questionable to start tearing into exterior walls. What kind of building is it, really?
What exactly does kortla mean? Is it roughly what I described as reinforcing with oblyga behind in another answer or is it something completely different?tommib said:
Approximately. Kortlingar (or as some say, kottlingar) are horizontal studs placed between the vertical ones. They are used to reinforce areas where you know you'll hang something heavy, or to strengthen the wall/floor construction laterally. The same effect can be achieved by placing plywood between the studs.J jackolako said:
Personally, I use OSB behind all drywall. I can't understand how it's even allowed to use just single-layer drywall. It doesn't hold up for anything.
Should say: Nah! As in: "No, is that true," or: "Nah, is it true"? Come on! , you really don't need to waste your time if you're not even trying to come up with a solution... iPhone messes up my sarcasmJ jackolako said:
Peter2400 said:
What I was trying to get across was that if there's a screw there, I don't see what the problem isJ jackolako said:
can't you just screw up a new bracket that attaches to the beam?
Maybe something like this,

I agree!tommib said:
Molly plug can hold up for some things but not for a window sill. Consider the torque that occurs when someone hangs on it or leans against it.
Molly is not stronger than the board it's attached to. If it were double drywall, then maybe, but never in single drywall. I wouldn't use molly in double drywall either.
Completely agree with you! Sounds like I'm somewhat on the right track, at least. Thanks for the reply.tommib said:
Approximately. Kortlingar (or as some say, kottlingar) are horizontal studs that are placed between the vertical ones. They are used to reinforce where you know you’re going to hang something heavy or to strengthen the wall/floor structure laterally. You can achieve the same effect by placing plywood between the studs.
I personally use OSB behind all the plasterboard. I can’t understand that it’s even allowed to install single plasterboard. It doesn't hold up for anything.
Is it allowed?tommib said:
Approximately. Kortlingar (or as some say, kottlingar) are horizontal studs placed between the vertical ones. They are used to reinforce where you know you'll hang something heavy, or to strengthen the wall/floor construction laterally. You achieve the same effect by placing a plywood sheet between the studs.
I personally use OSB behind all plasterboard. I can't understand that it's even allowed to install just single plasterboard. It doesn't hold up for anything.

