Our extension is nearing completion and I have a newly constructed kitchen roof with a hip end and vaulted ceiling to insulate and plasterboard.
The design spec. suggests Celotex GA4000 @ 100mm between the rafters and PL4040 (40mm bonded with 12.5mm PB) to underside. I am contemplating doing this myself (there will be two of us). Is this a practical DIY project? From a brief look at the product literature, the GA400 is sawn to slightly oversize to provide a friction fit between the rafters, and then the bonded PB is fitted with the long side across the rafters.
I can readily hire a scaffold tower on wheels to move around under the roof, and I have plenty of time in the run-up to Christmas. If I can get the PB up, I'll get in a plasterer to skim walls + ceiling for a good finish.
I have the walls to PB too, of course, and I was going to use standard 12.5mm sheets on 10mm adhesive. Should I do the ceiling first, and then the walls, or the walls, then the ceiling? I will want to be sure to get a level and straight join all the way around.
Is this the sort of job where if you have a good plasterer available, he will put up the boards so much more quickly (and better?) than I could, that it isn't worth having a go ...
The design spec. suggests Celotex GA4000 @ 100mm between the rafters and PL4040 (40mm bonded with 12.5mm PB) to underside. I am contemplating doing this myself (there will be two of us). Is this a practical DIY project? From a brief look at the product literature, the GA400 is sawn to slightly oversize to provide a friction fit between the rafters, and then the bonded PB is fitted with the long side across the rafters.
I can readily hire a scaffold tower on wheels to move around under the roof, and I have plenty of time in the run-up to Christmas. If I can get the PB up, I'll get in a plasterer to skim walls + ceiling for a good finish.
I have the walls to PB too, of course, and I was going to use standard 12.5mm sheets on 10mm adhesive. Should I do the ceiling first, and then the walls, or the walls, then the ceiling? I will want to be sure to get a level and straight join all the way around.
Is this the sort of job where if you have a good plasterer available, he will put up the boards so much more quickly (and better?) than I could, that it isn't worth having a go ...
