John Rumm wrote:

I am assuming he means the bits of loft left that are not under
the new floor (although may still be crossed by new joists) at
the eves etc.

Spot on John :-) Plus the loft conversion only covers about half the
bungalow roof area (because the roof in the other areas was too low for
conversion.

Noise insulation and fire resistance are other reasons for
adding insulation.

I am considering putting 100mm of insulation under the loft conversion floor
to help keep the heat downstairs.

I'd have thought a good dose of insulation just under the tiles would be
the best bet like cellotex/kingspan etc or am I missing something?

You will need this as well, otherwise the loft rooms will be a tad
freezing!

Yes, I'll be having that too!
--
Mike
-Please remove 'safetycatch' from e-mail address before firing off your
reply-