Continuous roof lines with fewer avoidable end-laps
Longspan is a roll-formed aluminium roofing profile intended for broad, continuous roof planes. Sheets are cut to the approved project lengths within production, transport and safe-handling limits. Where a roof plane can be covered without unnecessary horizontal end-laps, the detailing becomes simpler and there are fewer joints for the installer to manage.
Evermetal manufactures this roofing profile through in-house roll-forming/corrugation from approved aluminium coil stock. The production order records the agreed thickness, colour, profile details, cut lengths and quantities before forming begins.
The exact alloy or temper, thickness, profile geometry, effective cover and coating must come from the material and production specification for the order—not from a generic website description. Evermetal records the agreed thickness, colour, lengths, quantities and accessories on the quotation before fabrication.
Best use cases
- Warehouses, factories and industrial sheds needing wide, uninterrupted coverage
- Schools, churches and event centres with large roof planes
- Duplexes, bungalows and estate developments
- Any project where minimising horizontal joints reduces long-term leak risk
Gauge and specification guidance
| Thickness / gauge | Available options vary by stock and project. The quotation states the requested nominal thickness and the agreed verification method. |
|---|---|
| Profile | Longspan profile; effective cover and rib geometry are confirmed from the current production tooling before final estimation. |
| Length | Cut-to-length subject to transport, handling and production limits; maximum practical length is confirmed per project. |
| Finish / coating | Colour and coating system are confirmed from the current coil batch or supplier data before order approval. |
| Verification | Thickness, colour, length and quantity are checked against the approved order before dispatch. |
Colour and finish
Evermetal presents the current physical colour swatches or supplier references for the material available at the time of quotation. Architectural colour matching is only confirmed when the relevant supplier colour reference can be verified.
For occupied spaces, roof colour is only one part of thermal comfort. Ceiling design, insulation, ventilation and solar exposure should be considered as a system.
Why buyers choose this profile
- Clean, continuous appearance on broad roof planes.
- Can reduce unnecessary horizontal end-laps when project dimensions and handling permit.
- Lightweight roof covering compared with many heavy tile systems; the structural designer should still check the complete roof load.
- Cut-to-length production supports project-specific schedules and reduces avoidable off-cuts when measurements are accurate.
- Ridges, valleys, flashings, fasteners and rainwater goods can be scheduled as one complete roof package.
Installation, handling and verification
Confirm the approved thickness with an appropriate measuring instrument before dispatch on material-critical orders.
Use the support spacing, roof pitch and fastener pattern specified for the actual profile and building; do not copy another project by eye.
Handle long sheets with enough people and suitable supports to prevent kinking, edge damage and coating abrasion.
Use compatible fasteners, washers and flashings. Where dissimilar metals may contact one another, obtain appropriate material-compatibility guidance.
For rain noise and indoor heat control, consider ceiling construction, insulation or sarking, ventilation and workmanship rather than relying on sheet thickness alone.
Required accessories
Prepare a complete accessory schedule: ridges, valleys, barges, apron/sidewall flashings, closures, fasteners, gutters, rainwater collectors and repair materials as applicable.
Open the accessories guide →