Show roof laying faults faults in laying t metal etal roofs and use of improper paints to protect them after being laid will cause cause trouble or unnecessary expense later on farm buildings many metal roofs on form farm buildings are laid over slats G rt shier specialist in agricultural engineering gi ohio state university says that only y corrugated metal has enough stiffness to be laid over slats without courting trouble ather metal roofing should be placed over s solid olad sheathing all types of metal roofing should be nailed every light eight inches along the side lap even when the spacing of the sheets makes it necessary to insert short strips to provide places for or nailing it is almost impossible to lay jay metal roofs which will not leak on nearly flat topped chedi attached to barns |