Horizontal Cladding Alignment

Tighter tolerances are associated with some of the horizontal cladding systems in today’s market. These tolerances can be achieved by using voestalpine Metsec C-section rails supported on cleats with slotted holes in combination with the slotted cleats in the PJR and HCS.

voestalpine Metsec have carried out comprehensive testing at The University of Strathclyde to support the use of slotted cleats without slip under the required loads. The recommended torque on a grade 8.8 bolt is 244Nm. The results of these tests are shown in the table below and are applicable to voestalpine Metsec components.

Rail Series	Max Wind Load Required kN	Test Load kN	Torque	Dimensions for Detailing (mm)
D1	D1
142	34.3	45	100	150	56
172	45.3	52.5	125	180	86
202	49.3	52.5	125	210	116
232	52.3	60	150	240	146
262	68.3	75	200	270	176
302	74.4	82.5	225	310	195
342	90.3	90	250	350	235

Slotted cleats by others or to special order

Z-section alignment

C-section alignment for 142 to 262 Series

C-section alignment for 302 to 342 Series

Download our purlin technical manual for more information.

Contact Information

voestalpine Metsec plc Purlins & Side Rails

Tel: +44 (0) 121 601 6000

Fax: +44 (0) 121 601 6065