A quick gem with includes a Rails generator to create a rake task, to sync a Slickplan XML file with a RooftopCMS.com site.
gem 'slickplan-rooftop' in your gemfile or gem install 'slickplan-rooftop'.
rails g slickplan:rooftop:sitemap to install the rake task
rake slickplan:generate_pages[/path/to/your/xml] to generate the pages.