Thread
:
Celotex between rafters, polstyrene over. Vapour barrier ?
View Single Post
#
2
Posted to uk.d-i-y
Ian Stirling
external usenet poster
Posts: 519
Celotex between rafters, polstyrene over. Vapour barrier ?
wrote:
Hi,
Im in the process of insulating the roof of my garage.
I am planning on using 50mm Celotex between the rafters. Due to cost,
I was planning on using 25mm polysterene from B&Q over.
Would I still need the vapour barrier plasterboard ? Or if I ditch the
polysterene could I just tape up the joints where the Celotex meets the
rafters and use standard plasterboard ?
Take sheet of non-vapour barrier plasterboard.
Dilute PVA to milk-like consistency.
Arrange some way to prop up the sheet so that it's off the floor,
vertical, or sloping slghtly backwards, with the long side parallel to
the floor.
Spray a meter with the PVA solution from a small pump-up sprayer.
Lay two lines of kitchen foil, slightly overlapping.
Spray another meter, repeat.
This gets you a foil coated bit of plasterboard for well under 30p, and
in under 5 min or so.
Reply With Quote
Ian Stirling
View Public Profile
Find all posts by Ian Stirling