I have a deck attached to my house that I would like to turn into a sunroom. The deck is standing on treated 4 x 4 posts. What I'm thinking is taking the deck down to the support beams and building from there. Of course, I'll have to tie into the roofline and joists as well. The questions that come to mind are:
How well suited are the posts for supporting the load?
How long can I expect them to last, or how can their life be extended?
How deep should they be to help prevent settling, heaving, etc...?
If the posts are not suited for doing this, then what can be substituted? Building another foundation is not feasible as the ground severly slopes away from the house, and the deck stands around 5-6' tall 12' from the house.
Thanks for the help!
[This message has been edited by Tom in Oxford (edited April 03, 2001).]