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- 26 Mar 2011
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Hi
I am in the process of building a sun room and garage extension which i intend to use as a utility room. Both ceilings are vaulted and will have Velux or similar windows in the roof. My roof trusses are 7*2 @ 400 centers. I have a roofing contractor who will felt batten and fit the tiles. I intend to plasterboard and skim the insides. My questions are
What insulation should I use between the trusses?
Does it need clearance for air flow ?
Does there need to be a membrane on the underside for the insulation to sit on ?
Would you timber panel it out with ply before fitting the plasterboard ?
Thanks
John
I am in the process of building a sun room and garage extension which i intend to use as a utility room. Both ceilings are vaulted and will have Velux or similar windows in the roof. My roof trusses are 7*2 @ 400 centers. I have a roofing contractor who will felt batten and fit the tiles. I intend to plasterboard and skim the insides. My questions are
What insulation should I use between the trusses?
Does it need clearance for air flow ?
Does there need to be a membrane on the underside for the insulation to sit on ?
Would you timber panel it out with ply before fitting the plasterboard ?
Thanks
John