Hi all,
I'm planning on boarding over an existing ceiling upstairs, and I've got a couple of questions that I hope someone can help me with! The existing ceiling is lath and plaster, the joists are 3 1/2" x 1 1/2". spaced about 35cm apart.
I plan to screw 2 x 1 wooden battens across the existing joists, then screw the plasterboard to these wooden battens, this gives me a bit of clearance so that I can get the edges against the walls nice and neat, and it helps with a section at the edge of the room where the roof cuts into the room for a foot or so. Are there any problems with this method?
1. Do I need to use 12.5mm board, or could I get by with 9.5mm? I heard that 9.5mm is "whippy", but with no traffic above (it's just a loft) and with the existing ceiling still there, I'm slightly worried about the extra weight.
2. If the boards are going to be skimmed when I'm done, does it matter if the boards are staggered or not?
3. Am I going to have any problems if I use 900 x 1800 boards instead of 1200 by 2400?
Thanks all!
Russ
I'm planning on boarding over an existing ceiling upstairs, and I've got a couple of questions that I hope someone can help me with! The existing ceiling is lath and plaster, the joists are 3 1/2" x 1 1/2". spaced about 35cm apart.
I plan to screw 2 x 1 wooden battens across the existing joists, then screw the plasterboard to these wooden battens, this gives me a bit of clearance so that I can get the edges against the walls nice and neat, and it helps with a section at the edge of the room where the roof cuts into the room for a foot or so. Are there any problems with this method?
1. Do I need to use 12.5mm board, or could I get by with 9.5mm? I heard that 9.5mm is "whippy", but with no traffic above (it's just a loft) and with the existing ceiling still there, I'm slightly worried about the extra weight.
2. If the boards are going to be skimmed when I'm done, does it matter if the boards are staggered or not?
3. Am I going to have any problems if I use 900 x 1800 boards instead of 1200 by 2400?
Thanks all!
Russ