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Performance Data

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The evidence behind our performance claims

Every performance claim we make for our roofing systems is backed by testing, an independent standard,
a published comparison or in-service experience. This page brings that evidence together, for each system,
the claim, the proof behind it, and a link to the source document.

Select a system below to view its performance data.

Evidence type:
  • Testing / Standard
  • Comparison
  • User experience
    Garland UK
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