technically, drylining is usuing plasterboard instead of wet plastering.
As Marsh has said, drylining is the opposite to wet plastering thus refers to fixing plasterboards directly to a masonry wall using adhesive.
"Plasterboarding" could mean the mechanical fixing of plasterboards to stud work AND refer to the adhesive method of fixing of boards to walls.
You need some clarification from the architect because the way i see it you would generally mechanically fix boards to a ceiling, whether it be sloping or not.
The thing about 'raked' or vaulted ceilings is the insulation/ventilation factor. You will need to be fitting 100-125mm of pir board insulation at this point and it will either be positioned between below or on top of the rafters depending upon design, i.e. warm or cold roof.
Your architect may have fixing issues regards the way this insulation is fixed and whether you integrate both insulation with the boards or indeed use a pre-insulated plasterboard.
Hi thanks for your input ,not familiar with all these different boards ,is PIR board drylining board?
The drawing states 90/30 celotex in rafter (between rafters)and then drylining the sloping ceiling.We are thinking of using exortherm which is not as expensive as celotex.May be 100 mm or more for maximum insulation.
Probably.
Ok, so your architect is speccing 90mm betwixt with 30mm underdraw (across or below the rafters), make sense. There is no reason why the plasterboards can't be mechanically fixed.
Ok, so your architect is speccing 90mm betwixt with 30mm underdraw (across or below the rafters), make sense. There is no reason why the plasterboards can't be mechanically fixed.
So if we dryline over the rafters can the drylining be skimmed over?and what is the advantage of drylining instead of plasterboading?
Your back then ; have a good time? I'm just counting down for the off on Monday.bit late really
I'm a bit confused here. The way I read this spec is that you fit 90mm cellotex/kingspan insulation between the rafters (which I'm guessing are 150mm deep, thus allowing an airflow of at least 50mm between the insulation and the felt/tiles), and overboard this with 30mm cellotex/kingspan which may be pre-glued to the plasterboard surface. Either way, this plasterboard will need screwing into the rafters, and can be skim plastered anyway, unless your architect is saying that the weight on the rafters will be too great, and is allowing for taper edge board going up with a joint skim.
The advantage of using plasterboard with insulation already adhered to it is that you get the whoe thing up in one go, rather than mechanicalle fixing the insulation first and adding the plasterboard on top.
However, I expect to be completely ridiculed in my analysis of the situation.
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