In an earlier contribution to this discussion,
Hugo Nebula abuse@localhost wrote:

On Fri, 22 Jun 2007 13:56:34 +0100, a particular chimpanzee, "Roger
Mills" randomly hit the keyboard and
produced:

It's a good idea - especially if you're doing your own plans - to go
to have a chat with a BCO at your local council and find out exactly
what they'll be looking for before you start. If it's obvious from
your approach that you want to do it right, but are not quite sure
what to do, I have always found them to be very helpful and
supportive. They'd rather help you get it right first time than get
into a dispute when they come to inspect something which *hasn't*
been done right.

With the caveat that the BCO won't design it for you, and will get
very ****ed off very quickly if you start asking him to.

I didn't suggest that he would. But hopefully he will tell you what U value
you need to achieve, and where to find tables of material properties that
you will need when working out how to achieve it, and things like that. When
I did my extension on a Building Notice, I bounced my plans informally off a
BCO and got some very useful pointers on bits which I needed to modify. I
don't know whether all councils are the same, but my council always has one
'duty' BCO in the office whom you can drop in and see if you need advice.
--
Cheers,
Roger
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