30cc or 45cc

[evoline]

Hello,
Do you think one should use 30cc or 45cc to level up the ceiling and then lower it with 13x900x2500mm gypsum without it "sagging" in the future???

Thanks

 

[kimpo]

Always c/c 30 in the ceiling.

You're welcome!

 

[evoline]

Googled this:
http://www.viivilla.se/ovrig-interior/sank-taket.aspx

What is correct?

I will have plasterboard over the entire ceiling and then fill and paint, no seams should be visible or anything...

 

[mikmal]

Hi

I also recommend c/c 30. Be sure to adjust the c/c distance where you place the first board(s) so you can remove the recessed part (5-7 cm) on the section of the board facing the wall - otherwise, you'll have to fill the entire seam against the wall - easier to only fill the screws. (Saw off the recess where the strip is meant to be filled in, I mean.)

//Mikael

 

[evoline]

Hi
Remember to adjust the c/c distance where you place the first board(s) so that you can remove the recessed part (5-7 cm) on the part of the board that is towards the wall - otherwise, you will have to fill the entire seam against the wall - easier to only fill the screws. (Cut away the recess where the strip is supposed to be filled in, I mean.)

//Mikael

I'm going to apply latex sealant at the edges anyway.
Without it or filler, it won't look good, and I'm not going to have any ugly ceiling moldings either.

Thanks

 

[Styx]

I will still apply latex caulk at the edges.
Without that or filler, it won't look good, and I'm not going to have an ugly molding either.

Thanks

No, you still need to caulk if you aren't going to have a molding - but if you don't remove the beveled part of the board, you'll also need to fill...

 

[mikmal]

yep! that's how it is ...

 

[Elvis69]

Hello,
Do you think one should use 30cc or 45cc to frame the ceiling and then lower it with 13x900x2500mm gypsum without it "sagging" in the future???

Thanks

If you mount a layer of gypsum along the joists, you should use cc30. If you mount the panels across the joists, you can use as much as cc60.

Ceiling

 

[evoline]

So how do you mean to remove the beveled edge???
Saw off the indentation, in other words.

Is it just to cut all the way so that the plasterboard itself is visible, so that the actual paper disappears??
I will have regular wall plasterboards.

I will have studs from the window inward.
In other words, follow the sunlight.
Same thing with the plasterboard, it should be from the light.

Thanks

 

[FredrikR]

There is a facade edge that is about 4cm wide on the long sides of the plasterboard, the plasterboard is ~10mm thick there compared to the rest of the board which is 13mm.

They recommend that you cut it off to avoid having to spackle the long side(s) that end up against the wall.

 

[Larsa]

There are two ways to frame the roof. Either you frame down with cc30 and screw directly into the studs. Another option if you want to lower a bit more is to frame down and then screw a sparse panel on cc30. The studs can then be cc120 and then sparse panel e.g. 28x70rpl with cc30.

 

[evoline]

OK, thank you FredrikR for your description.