A purlin machine is a machine that produces cement purlins.
Purlins are horizontal members running the length of a roof, located above the main rafters and supporting the secondary rafters. In rural houses, they are used to support the rafters and form the horizontal beams of the roof. They are one of the main structural components of a house, also known as purlins. On a pitched roof, they are often placed on the roof trusses or diagonal beams, with the slats and tiles added above them, serving as the supporting structure for the water-repellent beams.
Due to their durability and cost-effectiveness, cement purlins are more widely used than wood and steel structures.