Fixing insulated plasterboard

SomethingElse

Hi, can anyone tell me how many mushroom fixings I need to apply per board. Also, on the sheets I got the plasterboard is slightly offset from the insulation(there Iis an overhang on one end). Is there a certain way the sheet needs to be turned when I'm putting them up?

chippie1774

approx 16 to 20 a sheet....

mfceiling

Sheets should really be stood up.

Cut the small piece of insulation off flush with the plasterboard (i'm assuming from your post it is overhanging by a couple of mm). The plasterboard should butt joint tightly to the sheet beside it.

650gs

chippie1774 wrote: »

approx 16 to 20 a sheet....

Feck me I was thinking more like 8, get expanding foam make a zig, zag on the slab then put your fixings they wont go any where, if you put 16 to 20 theres a lot of patching before skim

mfceiling

650gs wrote: »

Feck me I was thinking more like 8, get expanding foam make a zig, zag on the slab then put your fixings they wont go any where, if you put 16 to 20 theres a lot of patching before skim

Well if you put 5 down each edge you will have to put them at approx 100mm from the floor, then at 650mm, 1200mm, 1850mm and 2300mm.

That's 5 fixings down each edge and then one row in the middle = 15 fixings as a minimum...

I'm doing a small office fitout in dublin and we've been instructed to put 7 down each edge and middle = 21 fixings per board.

650gs

Give Gypsum support a call they recommend 9

mfceiling

650gs wrote: »

Give Gypsum support a call they recommend 9

Is that in conjunction with sticking compound?