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Thickness of double glazing with performance exceeding triple glazing
For LandVac Optimum. CN Glass are a supplier for Vacuum Glazing Manufacturers, Landvac.
- 25.1mm overall unit thickness
- 0.4 centre pane U-value
- Whole window U-values in a typical, thermally broken Aluminium product in the region of 1.2W/Km2.
- 39dB estimated glazing acoustic value
- G-Value of 0.59 (59%)
- Toughened vacuum unit with 6.8mm laminated outer pane for building regulation compliance as standard
- 15 year guarantee
Get Ahead of the Regulations - Compare Glazing Types
Double
Glazing
Triple
Glazing
LandVac
Optimum
Compare Glazing Types
Glazing Shapes
LandVac is available in a variety of shapes. Here are just a few examples to inspire your project:
Width to Height maximum ratio 1:6 for 8.3mm. Bigger than that and it will be 10.3mm. Any shape with a right angle and single point of radius. Isosolese triangles or right angled triangles with a hypotenuse greater that 370mm.
CAD drawings must be supplied for any shape orders.
LandVac Data Table
Product Series Indoor to Outdoor
4T+0.3V+4TL (S1.16) + 9Ar + 3 + 0.76P + 3
4T+0.3V+4TL (D80) + 9Ar + 3 + 0.76P + 3
4TL (S1.16) + 0.3V+4TL (S1.16) + 9Ar + 3 + 0.76P + 3
4TL (D80) + 0.3V+4TL (D80) + 9Ar + 3 + 0.76P + 3
U-Value
(W/m2K)
0.4
0.4
0.4
0.4
Visible Light
(Transmittance)
72%
63%
70%
54%
Visible Light
(Outdoor Reflectivity)
18%
19%
15%
16%
SHGC
(g-value)
0.59
0.46
0.48
0.32
Shading
Coefficient
0.68
0.53
0.55
0.37
Weighted Sound Reduction Index
41dB
41dB
41dB
41dB
General Criteria and Specification Notes
- Maximum Unit Size 1500mm x 2500mm
- Minimum Unit Size 300mm x 300mm. Please note that minimum unit size for pricing is 0.3m2.
- All LandVac Glass is toughened and has been certified to BS12150-1.
- U-value certified using hot box testing at IFT Rosenheim on 9.3 unit.
- More on Vacuum Glazing
Let’s get in touch
Contact CN Glass today to arrange a quotation. Reach us in the following options.
Address:
Norton House, Beaumont Road
Banbury, Oxfordshire OX16 1SD
Phone Number:
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