Windy Ridge

I am a builder by trade undertaking a self build barn conversion. I need calcs for building control for a steel support beam supporting roof trusses/slate/solar panels with a span of just over 8m. Also spec for its supports. Also lintel spec for 7 openings in timber frame inc 2 that come together in a corner plus that corner support. Plans attached. Any questions (Removed by Freelancer.com admin)