Crunk Juice is also the name of a 2004 album by Lil Jon and the Eastside Boyz.
Re: tying the porch roof into the main house... I'll add I'd also go with 5/8 CDX ply for the roof sheathing. That added 1/8 goes a long way to resist uplift , and as you know wind in your area is a BIG issue.
The house roof pitch is 4:12. We are planning a shed style porch roof of metal roofing panels to match the house roof. We plan to tie the porch roof into the house roof 6 feet up from the front eave of the house roof. The porch will extend 6 feet out in front of the house, so the porch roof will be 12 feet, front to back. If I am calculating correctly, the pitch of the porch roof will be 2:12.