I acquired an ordinary national certificate in mechanical engineering some 40+ years ago, unused since.
Can some kind person direct me to a source for understandable formulae for working out approximate purlin loading on a simple pitched roof? I assume the existing trusses will be adequate.
I am replacing a time expired corrugated steel roof and am considering using composite roof panels which are much heavier:-)
The original building is Victorian/agricultural but I can't see any evidence of an earlier slate covering and the truss/purlin spacing is only suitable for rigid sheeting.
Having just glanced at a chapter on theory of structures (Mitchell, building construction) I fear I may be heading for deep water:-)
regards