Paul Moore wrote:

My next home project is to convert the attic. I was wondering about
insulation. Should I use loose stranded fibreglass insulation like Rockwoll,

Nope (except for under the floor where it will let you meet the fire and
noise transmission regs)

http://www.internode.co.uk/loft/images/wool.jpg

or a solid insulation? I was planning to clad the ceiling with wood
panelling, and I thought that glass fibres might escape through the cracks
between the panels and contaminate the air.

Use PIR foam, it is one of the few ways to meet the required u Values
and not lose too much headroom.

http://www.internode.co.uk/loft/insulating.htm

Should I also use a plastic sheet between the insulation and the wood
panelling? I suppose that this should also seal the glass fibres in place?

No need - it is foil covered. You can tape the joins with foil tape to
keep them air tight.


--
Cheers,

John.

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