Summary
Toughened low sightline 8.3, 9.3, 10.3 or 12.3 mm thick vacuum glazing unit with a U-value as low as 0.34 W/m²K.
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Application
For reglazing of existing windows in Listed properties or those in conservation areas to vastly improve energy efficiency and sound attenuation. Also for installing in new windows and new sashes for existing windows to deliver high performance windows in heritage applications.
For new windows into EnerPhit or other thermally-driven projects. The centre-pane U-value of the glass, combined with modern frames, can offers a slim and effective product and performance.
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Description
Durable and energy-efficient vacuum glazing units, combining modern performance with an 8.3 mm profile for architects and specifiers working on listed properties or those in conservation areas.
Features and benefits:
- U-value: as low as 0.34 W/m²K.
- Toughened glass as standard.
- Flexible edge sealer for longer service life.
- Overall thickness: 8.3, 9.3, 10.3 or 12.3 mm.
- Acoustic reduction: 36–39 dB.
- Part Q Compliant (option).
- Part L Compliant.
- Certified lead free sealing solder.
Guarantees:
- 25 year guarantee.
- 25+ year expected service life, as demonstrated by accelerated ageing tests to 25 years with no loss in performance.
LandVac Enhance Vacuum Glazing Units:
LandVac Enhance glazing is a suitable solution for retrofit of heritage glazing in listed properties and buildings located in conservation areas as it eliminates the double reflection that makes standard double glazing unsuitable. This feature also addresses planning permission issues that arise from this visual disturbance.
Compared to slim double glazing, LandVac heritage glazing is significantly thinner and longer lasting, making it easier to install and maintain. Additionally, it has high insulating properties, resulting in significant energy savings and a reduction in carbon emissions. This product is an excellent choice for retrofitting projects where it's plugless design and low sightline fit existing rebates, allowing property owners to enhance the energy efficiency of their buildings without compromising their heritage or aesthetics.
LandVac Enhance vacuum glass can also be fitted into new windows and new sashes, where it enables slim profile windows to perform at similar levels to modern triple glazed windows. The acoustic performance of LandVac Enhance vacuum glass also reduces noise and improves occupant comfort.
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Product certifications
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Digital objects
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Color
Clear
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Material
Glass
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Shape
Square, Circle, Crescent, Octagon, Diamond, Elliptical, Formless, Hexagon, Kite, Oval, Parallelogram, Pentagon, Rectangle, Rhombus, Trapezium, Trapezoid, Triangle, Other
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Length
Bespoke
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Width
Bespoke
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Height
Bespoke
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Warranty description
25 year
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Specification
General requirements
Glass generally.
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Standard
To BS 12150-1.
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Pane arrangement
Double.
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Overall thickness
8.3 mm.
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Performance requirements
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Fire performance
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Integrity
Manufacturer's standard.
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Insulation
Manufacturer's standard.
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Radiation
Manufacturer's standard.
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Light
70%.
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Solar control
0.40.
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Total shading coefficient
0.67.
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Thermal insulation
0.40 W/m²K.
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Sound attenuation
36 dB.
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Impact resistance
To BS 12150-1, toughened as standard.
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Unit build-up
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Inner pane
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Glass type
Single low E tough.
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Thickness
4 mm.
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Outer pane
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Glass type
Thermally toughened glass.
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Thickness
4 mm.
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Cavity space fill
Vacuum cavity.
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Additional properties
Dimensions
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Coating
Double silver coating D80.
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Sustainability data
Contains Red List materials
No
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Country of material origin
China
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Country of product manufacture
China
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Material
Glass
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A1–A3 ('Production stage')
Embodied carbon as defined in BS EN 15804
Normalized unit
1.94 kg CO₂ eq/kg
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Declared unit
38.8 kg CO₂ eq/m²
Certified
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Recyclability
100%
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Recycled content
30 %
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Expected Life
50 year
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