there should be more information with your question.
we have a 1974 - 12 x 60 that we just added 6 foot to as well as a 8 x 60 porch with a peak roof to. at the beginning you must make sure there is enough support to your mobile home. if not then make your peak roof over the entire mobile home with adding extra for sides to hold the support of the roof.
diana and tony, July 2007