32mm Triple Glazed Unit — Ultra-Insulation for Maximum Thermal PerformanceOur 32mm Triple Glazed Unit bridges the gap between standard triple glazing and Passive House specification — delivering a centre-pane U-value of 0.7 W/m²K with double Low-E coatings and argon gas fill. This is the unit for projects where thermal performance is the top priority but Passive House certification isn't required.Ideal for exposed sites, north-facing elevations, rural and coastal locations, and any building where heat retention is critical. The 32mm profile provides a substantial upgrade over 28mm triple glazing while remaining compatible with most modern window frame systems designed for triple units.Why Choose 32mm Over 28mm?The wider 10mm cavities (compared to 8mm in our 28mm range) allow the argon gas to perform more effectively, while the double Low-E coating on surfaces 3 and 5 creates two reflective barriers instead of one. The result: a 22% improvement in U-value (0.7 vs 0.9 W/m²K) for just 4mm additional thickness. U-value: 0.7 W/m²K (centre pane) Configuration: 4mm-10mm-4mm-10mm-4mm Gas fill: Argon (90%+ concentration) Low-E coatings: Double — surfaces 3 and 5 Light transmittance: ~65% Solar factor (g-value): 0.42 For cold-climate builds, exposed elevations, and energy-conscious clients, this unit delivers measurable savings. Manufactured to BS EN 1279 at our Bristol facility. FENSA registered, 10-year warranty, nationwide delivery.Use our glass configurator for instant custom pricing on your exact dimensions.
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