Outdoor UV Exposure and Colour Retention
Project Background
Exterior trees fail on colour, not on structure. A tree that fades in a season of direct sun leaves a visibly washed-out feature in an entrance or plaza, even though the trunk is still perfectly sound.
Specifications
| Foliage rating | UV50+ stabilised |
|---|---|
| Test standard | ASTM G154 accelerated weathering |
| Verification | SGS verified 3–5 year colour fastness |
| Hardware | Salt-air resistant stainless fixings for coastal sites |
| Documentation | Test reports issued per project |
Client Challenge
Desert and coastal sites are the harshest cases: high UV plus salt air degrades both foliage colour and metal fixings. Specification clauses written without test evidence give the supplier room to substitute a cheaper foliage.
Solution
We specify UV50+ foliage tested to ASTM G154 and use stainless fixings on coastal sites, then issue the test documentation with the project so the specification you paid for is the specification you receive.
Welding & Production Photos



Final Installation

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