z section steel metal roofing purlin

At least GR340 ,SGH440,G450 high tensile hot-dipped galvanized base materials are usually adopted , while the places and radius of the holes can be pre-punched according to customer's requirements.Continuous lapping of Z purlin is advised to be used as roof to improve the carrying capacity of this system .

American spacing brace is much more convenienti than traditional ones to install .No need to verify the prulin space size .Hot-dipped galvanized materials , saves the trouble of maintenance whole lifte time

Compared with common truss , no maintenance is needed . Service life can be 6--10 times longer . Only 1/10 of the common truss purlins are used for manual work .

Maximum column space can reach 16 m . Total cost can be saved by 5%--8% than common truss purlin .

AS 1397 450mps 1.0mm-2.5mm

AS 1397 350mps 1.5mm-3.5mm