Pre-engineered steel buildings are increasingly favored in projects such as factories, warehouses, shopping centers, and residential homes due to their superior advantages over reinforced concrete structures. One of the most critical components of pre-engineered steel buildings is the roof purlin. Join Pebsteel to explore different types of roof purlins and essential considerations when selecting them for steel frame constructions.
1. Definition and classification of rafter
Roof purlins are crucial components that support and tightly connect the roof with other parts of the building such as columns, walls, gutter systems, and bracing systems. They are precisely installed to evenly distribute the roof’s weight onto columns and walls, ensuring the structure remains sturdy and balanced. Roof purlins are classified into the following main types, corresponding to different types of construction:
– Pre-engineered steel roof purlins.
– Box-section steel purlins, I-section steel purlins.
– Space frame structure with multidirectional tubular bracing.
– Tiled roof purlins with ridge beams, rafters, batten.
– Wooden roof purlins with a system of rafters, purlins, beams, ridges, etc.
Read more: Steel Structure Introduction
2. Introduction to PEB Steel’s roof purlin frames
Pebsteel offers several exemplary roof purlin frames for pre-engineered steel buildings:
– Multi-span frame: Ideal for super-wide structures with low roof slopes, suitable for use in warehouses, distribution centers, and manufacturing plants.
– Clear span frame: Spanning up to 180 meters, perfect for warehouses, aircraft hangars, auditoriums, and large entertainment venues.
– Lean-to frame: A budget-friendly solution for expanding or adding onto existing structures, especially beneficial for warehouses or office buildings.
– Single slope frame: Cost-effective for structures under 12 meters wide, used in shopping centers, office buildings, warehouses, and shipbuilding yards.
– PebHybrid® Frame: Innovatively developed by Pebsteel, featuring cold-formed zinc-coated steel with Omega-shaped top and bottom bars, connected by bracing members (crossbars) and bolts. PebHybrid® reduces weight by up to 20% compared to fully composite steel frames, saving on fabrication time, ensuring ease of transportation, and offering exceptional durability.
Pebsteel is a leading designer, manufacturer, and installer of steel buildings with 30 years of experience across multiple countries. Trusted for our design capabilities and technical expertise, Pebsteel is committed to delivering the highest quality products and services. Contact Pebsteel today for free consultation and quotation via email at [email protected] or by phone at +84 908 883531.
