Exterior Z Purlin is a building element used during the construction of houses, pre-engineered buildings and other structures. It is commonly used to provide a structural support within the walls and floor joists. Due to its unique shape, it allows the overlapping with other structural elements at the joints which results in higher stability. Exterior Z Purlin availed by us is coated with a galvanized coating which results in high class surface finish and excellent protection against rust and corrosion.