Cheers Les,
Nice to think people think i can do it. I have managed to build the entire extension myself. I laid new water mains to the house, laid the footings, built to DPC, laid the slab, and have took the brickwork to the roof level.
If it was a straight 3 sided building without having to have an overhang to create the roof for the bay window, then i probably would DIY it. the bit that worries me is the lack of information on the subject.
Everything i needed to know about all the other aspects of the build i found with a little persistance, however the roof is proving very difficult. I have heard of birdsmouth cuts ans valley boards and all sorts that is puzzling me.
Has a said earlier a very kind forum member did offer to help but he lives in west brom and like you les, he has other comitments. Its difficult trying to organise things so if he did come to help, everything would be ready. Biggest problem to date has been the weather holding up.
I think that if someone could help with the hips and the valley, then like you say the rest should slot into place easily. I cant get my head around how to cut the hips that are 10" deep so when i start adding the rafters 6" deep, they become level ? you understand what i mean ?
I presume you put a little cut (birdsmouth) into the hips and rafters so the have a flat meeting with the wall plate.
Anyway, Maybe ill get it done one day
Took me three weeks to build and has been 8 weeks with no roof on now
Cheers,
Mick