Thinking of converting loft

[srb62]

I'm considering having my loft converted.
The roof has quite a high pitch.
Part of the roof sticks out from the main roof - it sort of looks like a huge dormer window - but it's not really accessible when you are in the loft because there are lots of beams or trusses in it.
I'd just like some thoughts on the following things.

I assume that the ties (beams?) in the main part of the loft can be raised above head height - but I assume they would have to stay (i.e. the ceiling would not go all the way to the top of the pitch)?

I'm guessing that the 'dormer' part of the loft would not be usable as part of the conversion?

Thanks for any help

 

[freddiemercurystwin]

It can all be dealt with, given the cash. What is the clear height from the ceiling joists to the underside of the ridge? As typically you'll lose a 6/8/10" with additional floor structure and insulation etc. And getting the new stairs is sometimes tricky.