Roof Bracing Requirement Checklist

Component	Duo-pitch <25°		Mono-pitch <25°	Steep slopes >25°†	Tiled roofs	Non-restraining cladding
	Slope length		All Slopes	All Slopes	All Slopes	All Slopes
	<20m	>20m	All Slopes	All Slopes	All Slopes	All Slopes
DTW		Y Every 20m	Y Every 20m	Y	Y	Y
Eaves brace	Y	Y	Y	Y	Y	Y
Anti-sag rods	Y	*	*
Round lok apex tie	Y	Y
45 x 45mm lateral support				Y	Y	Y
Bolted apex strut				Y	Y	Y

* May be required for wind uplift or temporary support during sheeting see Anti-sag Rods for recommendations.
† and Purlin spacings >2.4m in heavy cladding applications

Contact Information

voestalpine Metsec plc Purlins & Side Rails

Tel: +44 (0) 121 601 6000

Fax: +44 (0) 121 601 6065