Primary members are the main load carrying and support members of a pre-engineered building. The main frame members include columns, rafters and other supporting members. The shape and size of these members vary based on the application and requirements. The frame is erected by bolting the end plates of connecting sections together.
Metco has installed most modern roll forming machines to manufacture a variety of standardized and customized purlins, maintaining international quality standards. There are variety of CNC controllers to conert the stroke, forming and punching parameters for optimizing the quality, design stability and finish.
Purlin & Grits are used as the secondary members which severs as a support to roof sheeting and wall cladding. They can be lapped and nested at the supports which creates a continuous beam configuration. They are supported on columns, rafters or building walls.