BALDWINS METAL LAND
Frequently Asked Questions
Yes, lipped channels are highly versatile and commonly used for both roof purlins and wall girts. When used as wall girts, they provide lateral support for wall cladding and resist wind loads. The same sections work effectively in both applications, though orientation and spacing differ. For walls, channels are typically installed horizontally with the lips facing inward, while roof purlins have the top flange up-slope. Wall girts may require closer spacing than roof purlins, depending on wind loads and cladding type.
The optimal tube shape depends on your specific application:
- Round Tubes: Ideal for multi-directional force applications, piping systems, railings, framework, and situations requiring even weight distribution. Their symmetrical design provides excellent resistance to bending and torsion.
- Square Tubes: Perfect for modular structures, frameworks, construction applications requiring strong joint connections, fencing, gates, and structural supports where geometric precision and uniformity are essential.
- Rectangular Tubes: Excellent for load-bearing tasks requiring directional strength, architectural applications, building frames, and situations where different load-bearing capacities are needed along different axes. They combine the benefits of both round and square tubes.
Our expert team can provide technical guidance to ensure you select the right tube shape and dimensions for your specific structural requirements.
Z275 pre-galvanised lipped channels typically last 15-25 years in coastal environments, while hot-dip galvanised sections can last 25-40 years. Lifespan depends on distance from the ocean, salt spray exposure, humidity levels, and maintenance. For structures within 1km of the ocean, hot-dip galvanising or 3CR12 stainless steel is recommended for maximum durability. Regular inspection and touch-up of damaged coating extends service life. Powder coating over galvanising (duplex system) provides additional protection in aggressive marine conditions.