Okay with screw spacing 30 cm for ceiling drywall?

[Sir Duke]

Good morning everyone!

I'm going to put up drywall on the new ceiling, and I've installed battens at 30 cm centers. But that means there will be 30 cm between the screws. Is that okay, or how else should it be done? I was thinking of setting the drywall boards perpendicular to the battens to support the short sides, does that matter? Otherwise, I could align the drywall along the battens, allowing for tight screwing along the long sides, but there would be no support along the short side.

Thanks in advance!

 

[RoBo]

Absolutely right. And it's best to mount across the glesen for the most stability. Short joints should be joined on the glesen.

 

[Sir Duke]

Thank you for the quick response!
Then there will be a lot of support on the short sides, but very sparse on the long sides. According to the gypsum manufacturers, it should be a maximum of 20 cm between the screws, but I get about 30, what can happen, can it start to bulge and sag over time or?

 

[Dan_Johansson]

I have had a 60x120 plasterboard sitting in the ceiling for quite a while, with just six screws, one in each corner and two in the middle of the long sides...

Nothing special has happened with it...

 

[Sir Duke]

Sounds good!
I was thinking of putting up wall gypsum which is large and heavy, but there will still be many fastening points. The manufacturers are picky and want it screwed so really tightly. I hope they are exaggerating a bit...

 

[tergo]

if you are going to plaster the long joints, they should be along the studs and screwed at a maximum of 20 cm apart, otherwise there is a risk of cracks forming

 

[varmkorv]

If it is a larger ceiling and you need to splice short sides, look at ceiling gypsum. They are recessed on all four sides, for example, Norgips Plan.

https://www.norgips.se/kunskapsbank/slata-tak-med-norgips-plan/

 

[Sir Duke]

Aha, thanks for the tip. I've installed proper ceiling drywall before, but there's so much to plaster in the seams, I want a completely smooth ceiling, no grid pattern. That's why I thought wall drywall would be good. We'll see how I do.

 

[Sir Duke]

I came up with a way to make the screws on the long sides a bit denser: To place 2 screws on each gles, near each edge, instead of just 1 in the middle. Then it will be about 25 centimeters between the screws from one gles to the next.

Could it be worth it? Or are there any disadvantages to screwing very densely and then sparsely alternately, like tensions in the drywall?

 

[AlfaHannes]

I came up with a way to place screws slightly closer on the long sides: placing 2 screws on each spar, close to each edge, instead of just 1 in the middle. Then it will be about 25 centimeters between the screws from one spar to the next.

Could it be worth it? Or is there any downside to screwing very tightly and then sparsely, like tensions in the plasterboard?

Did you get this sorted, and did it turn out well?

I'm going to install ceiling plasterboard tomorrow on spar cc30 and I just realized that it would be much simpler to install the plasterboard with the long side perpendicular to the spars. But then I have the problem that I can't screw the long sides closer than 30 cm.

It would be very interesting to get an update on how you did it and how it turned out!

 

[mexitegel]

Ceiling plasterboard should normally be installed so that incoming light from the windows runs parallel to the short side. Otherwise, a 30cm distance between screws is sufficient.

 

[tergo]

Installation Instructions - Ceiling with Gyproc Kortplank | Gyproc Sweden - lightweight construction systems with gypsum-based building boards

 

[AlfaHannes]

Ceiling gypsum should normally be installed so that incoming light from the window is parallel to the short side. Otherwise, 30cm between the screws is sufficient.

That's one reason I want to install it that way; the "width" of the room as seen from the window is 2.52.

Then there are door openings and other angles that make it not square, but if I install 2.50-gypsum with the length parallel to the window, I get virtually no seams at all in line with the incoming light. Why I mounted the battens in the other direction, I choose not to comment on

What I was worried about was that the plastering on the long sides could crack if you screw too sparsely, but 30 cm seems sufficient!

 

[tergo]

but 30 cm seems to be enough!

not if you read gyprocs instructions

 

[AlfaHannes]

not if you read gyprocs instructions

No, but in this thread, the main question was whether you could deviate from Gyproc's instructions by 10cm or not.

One might suspect that gypsum manufacturers have margins, and the original poster created the thread over a year ago, so I'm interested in knowing how it went.