OT: Roof framing, alteration Options

[thomasotten]

I have an existing roof on my house that is pitched and creates a cathedral type ceiling underneath. I am considering increasing the pitch of this roof, for ascthetic reasons mostly, but also to add insulation to the roof, which I don't thick is adequetly insulated. There is no attic space right now, so I cant' be sure of the insulation, although it gets hot in summer time. I want the final roof to be 12/12, and to do this, I would need to raise the ridge by about 2'. From the ridge, I would then run rafters down to the bottom of the roof fascia. Instead of raising each rafter up and causing a mess, I am considering building a structure over the exsiting roof, and then sheathing over. That way I don't disturb the ceiling. I was thinking of also doing this in phases, keeping the existing shingles on as a I go. What do you think?

[rhodyguy]

if you go the the insulated panel route, ensure you use a closed cell product.

personal liability is a factor to consider when assembling a crew and acting as a 'private contractor'. someone takes a header off the roof, it could cost you dearly. even so much as a "i hurt my back" could become a nightmare. get bids from licenced and bonded contractors. ask for past customers and get feedback. a good contractor should be more than happy to provide this info. ask the usual ?. was the work completed in a timely fashion? was the yard a pig sty when the job was finished?

when we did our roof (2 layers of comp), the contractor showed up with a scissor lift bed truck for hauling away the waste. a tear off crew of 8 or so and it was stripped and papered in 1 day. next day, 2 roofers and the shingling was done in 2 days. after all was said and done there was not so much as a piece trash in the flower beds.

k