We are going to build a sun roof on the back of the house. The question for you experts before we think of beginning this project is, do we attach to existing siding or pull it off where we attach? Just want a clearer picture before starting.
I guess it depends upon your sun room. Either way I would pull it so you can have a more secure connection.
One of the contractors here can give a better answer...
My constant project is my home which was built in 1947. We have remodeled almost all of it and added 1000 square foot in 2007. Lars Construction got me up to drywall and I did the rest.