Curved Roof Rafters have a dual purpose. They are mostly used to prevent the awning canopy from sagging & hence ensures water run-off. They are also good for keeping the awning fabric taught thus reducing wind flap, awnings that flap can cause your RV to shake or even cause damage to the awning itself.

Aussie Traveller has produced two types of telescopic Curved Roof Rafters(90mm & 60mm curve) - suiting most brands of rollout awnings.