New build - no wall insulation

ComicGeek

bris wrote: »

There won't be any heat loss between two homes, the walls that need insulated are the external ones for obvious reasons. I think you are clutching at straws tbh.

Yes, there will be - and in mid-terraced houses heat loss through party cavity walls is the main heat loss. A poor cavity wall will loss more heat than an external insulated wall per square metre.

However, nothing to suggest that the OP's party walls have been built incorrectly.

marlot

ComicGeek wrote: »

There will be if there's an unfilled, uninsulated cavity between the two houses...

Thanks. Learned something new today.