Purlin gives excellent strength to weight ratio, thus giving tremendous cost saving on secondary members. They are manufactured from Galvanizied coil having coating mass of 120GSM – 350 GSM) conforming to ASTM-A653M with yield strength of 250 – 350 MPA. Thick of the purlin varies from 1.5mm to 3.15mm
Structural C and Z section purlins are made using high quality tensile galvanized steel. The C purlins are in the shape of a ‘C’, whereas the Z purlins are in the shape of a ‘Z’.
