Choosing coated steel for roofing and wall profiles
Coating, profile and installation details work together. Here is what to clarify before comparing roofing options.
Start with the exposure
Rainfall, humidity, airborne salts, industrial contaminants and roof geometry all influence material performance. A finish that is suitable inland may need reconsideration in a more aggressive environment.
Define the complete build-up
Profile depth and sheet thickness are only part of the decision. Spans, supports, fasteners, laps, sealants, drainage and penetrations should be coordinated as a system.
- Confirm substrate and coating description.
- Match profile capacity to the support spacing.
- Use compatible flashings and fasteners.
Protect the finish through installation
Correct storage and handling are essential. Keep packs dry and ventilated, remove swarf promptly and repair installation damage using the system supplier’s guidance.
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