fly brace steel shed roof

Fly brace, Cee Rafter, Tophat battens

Simple answer….Fly Braces stop Cee sections twisting – A Fly Brace is a strap, angle or bar that runs from the flange of a rafter, main column or end wall column to a roof or wall purlin/batten and therefore restrains the section laterally.

What do they do?  Essentially they prevent a column or rafter from twisting or rotating  when under load.

fly brace on wall of steel shed

Fly brace, Cee Column, Wall battens