A Z-Purlin is a structural steel component used in the construction of roofs. It is named for its distinctive ‘Z’ shape, which provides superior strength and support. The 100x48x52x15mm size indicates the dimensions of the purlin, where 100mm is the width, 48mm is the height, 52mm is the flange width, and 15mm is the thickness. Galvanization adds a layer of protection against corrosion, making it an ideal choice for the humid climate of Singapore.