Trust BFRC for reliable, non-destructive testing of insulating glass units (IGUs) – performed directly at your site.
On-Site IGU Testing by BFRC
Gain data-driven insight into the current thermal performance of your glazing systems to support refurbishment planning, compliance validation, and supply chain assurance.
Gas Concentration
Non-destructive Argon testing using the Sparklike Laser device.
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Determines the Argon fill level of double/triple-glazed units.
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Fully compliant with BS EN 1279-3 standard.
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Reference performance:
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As-manufactured: 90% Argon (tolerance: -5% to +10%).
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Expected after 25 years: ≥80% Argon.
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Ideal for validating IGU quality on newbuilds or verifying retention performance in aging units.
Emissivity Testing
Measure the actual low-E coating performance on installed DGUs.
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Determines the emissivity level of low-emissivity coatings in situ.
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Allows for:
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Comparison against declared product specifications.
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Benchmarking against current industry standards.
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✅ Essential for understanding the retained thermal performance of ageing installations.
Dew Point Measurement
Assess seal integrity and remaining IGU service life.
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Non-invasive method to detect internal dew point.
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With installation date, supports life expectancy modelling.
Enables informed decisions about refurbishment timing and lifecycle cost analysis.
📊 Comprehensive Performance Insight
By combining gas concentration, emissivity, and dew point data, BFRC provides:
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An estimated current U-value for the IGU in situ.
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Degradation tracking versus original performance specs.
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Validation of newly installed IGUs for homeowners or contractors.
Whether you’re verifying the quality of newly installed products or determining the condition of existing glazing systems, BFRC on-site testing delivers confidence with certified precision.