Browse Forums General Discussion 1 Feb 27, 2018 9:49 am Hi ,I once read about a idea to prevent sagging rafters. The idea was to fix a piece of wood let's say 30cm long in the centre under the rafter then fix a length of wood the same length as the rafter .This apparently gives strength due to the curve shape. Would there be any logic to this idea. Re: Sagging rafter 2Feb 27, 2018 10:09 am Hi Nevilley Deflection relates to Stiffness (EI) If you increase the rafters stiffness you will decrease deflection BTW There are many solutions are your rafters visible? Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs |