Tapered edge plasterboard or square edge?

ZACCCC · 16 Sep 2014

I'm putting up plasterboard for a ceiling in a back bedroom which is very small (2 sheets of 2400 x 1200 will be more enough). Someone told me that I should use tapered edge PB but when I went to Jewsons the manager said that if it was going to be skimmed then I should be using square edge so that was what I got. Was he right and have I got the right stuff?

ree · 16 Sep 2014

Square edge is correct for skimming.

ZACCCC · 16 Sep 2014

Thanks mate - that's set my mind at rest.

Happyplumber · 17 Sep 2014

Taper edge plasterboard is actually made for dry lining where the two tapers meet and filled to create an invisible joint

For normal plaster work ,Square edge plasterboard is perfect

|I hope this can be of some help

ZACCCC · 17 Sep 2014

Thanks for that mate

ZACCCC · 23 Sep 2014

I'm having a problem getting my screws into the joists. The PB is 9.5mm and there is 50mm Xtratherm insulation above it so I wanted screws that would go about 20mm into the joists - therefore 80mm long was needed. The nearest to this that I could find were "Eastdrive BZP Fine Thread Drywall 100mm" but they won't go right into the joists but leave about 20mm sticking out below the PB. Am I using the wrong screws? If so can anyone please advise on a better screw?

roy c · 23 Sep 2014

I think you should of put the insulation between the joists !!! I would of used 12.5mm plasterboard. You should only need 32mm screws that way you will get your 20mm in the joists...

ZACCCC · 23 Sep 2014

I've actually already got 50mm of Xtratherm between the joists but I've put a sheet of Xtratherm under the joists as well, to increase the insulation. The problem I've now got is finding a screw that will go into the joists more easily. The ones I've got will go so far and then they won't budge further.

roy c · 23 Sep 2014

You might have been better putting 2"x2" battens across the joists and put your insulation in between them, then plaster boarded with normal screws....

Happyplumber · 29 Sep 2014

You need a good quality impact screwdriver with the correct head this will drive the screws home with ease

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Tapered edge plasterboard or square edge?

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