Colour change
+50%
Colour retention over time
Why it matters
Fading tracks material degradation. Colour that holds indicates granules still doing their UV job.
What the test found
Treated shingles regained 20% more of their original colour and retained colour 50% longer.
Results
| Measure | Result vs untreated control |
|---|---|
| Original colour regained | +20% |
| Colour retention over time | +50% |
Tested by Certerra, 2025, an accredited independent laboratory. Comparison is against untreated shingles of the same age.
Next testFlame resistance+63%