Insulation requirement from Oct 2010

[tyke]

I raised this under 'Timber Frame' but there was no response so apologies for raising it again as this may be the more appropriate topic:-
Or is this too big a subject?
We built a timber framed extension some years ago without problems but we simply cannot wrap our heads around the new insulation requirements for another single storey extension we need.
Is there a layman's guide to the actual requirements which explains from start to finish how to calculate, from scratch, what is needed?
We don't need planning permission but we do have to meet building regs - but how?

[welsh brickie]

Its difficult to assess what building control want without plans.
Have a word with an architect or arrange a meeting with building control

[sam0010]

Hi Tyke,

I work for Kingspan, its a common question we get asked, as a starting point for new elements in an extension, conversion & renovation 0.28W/m²K would be good. For refurbishment and retained elements this is slightly higher at 0.30W/m²K. Hope this helps.

Sam