Celotex type loft insulation - advice

[Bilabong007]

Hi,

Im in the process of insulating the stud walls that separate my bedrooms from a cold loft.

I have inserted celotex into the gaps and was wondering if its worth using foil tape between the wood and insulation? or just on the board to board joins?

I have some expanding foam for the bigger gaps, should this all be allowed to cure then taped?

PIR first fit

• Bilabong007
• 1 Mar 2014
• 2

Untitled

• Bilabong007
• 1 Mar 2014
• 2

Any thoughts much appreciated as i realise that a vcl is important, but is it worth going nuts over?

Edit: it's maybe not a vcl I should be making on this side, more of a barrier to heat loss to stop condensation on the inside

Graeme

 

[Bilabong007]

Well I finished half the job today and quite confidently say that "exact gap foam" isn't quite what is printed on the tin. It takes some getting used to and less is more.

The foil tape seems redundant if the cuts are good and if not then foam will fill the gap for sure.

Any advice for cutting and laying the pir for the bits that slant towards the upper loft? It's the bit in between the rafters and looks fiddley

Graeme