I'm going to add to the back of my 1952 home on a slab porch(22'x14')and would like some tips, on how to run the rafters(2x8) off the house to the new addition . Should the rafters be placed on top of the old house trusses and plywood?I dont want to run the rafter off the starter strip because, I wont have the pich for water run off. The house is in a area that has no code or inspectors,They told me to just respect my neighbors and to build it right.I just need little help on it, to be sound and strong so it can support the roof. Thank You for any feedback.
The addtion is going in the back of the house over the porch and dont know the best way to run the rafters which would be 2x8x16 running to the exteror wall.