Component Duo-pitch ≤ 25° Mono-pitch ≤ 25° Steep slopes ≥ 25°
and Purlin spacings > 2.4m in heavy cladding applications
Tiled roofs Non-restraining cladding
Slope length All slopes All slopes All slopes All slopes
< 20m > 20m
Every 20m

Every 20m
Eaves brace
Anti-sag rods * * *
Round lok apex tie
45 x 45mm lateral support
Bolted apex strut

* May be required for wind uplift or temporary support during sheeting see Anti-sag Rods for recommendations.