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Thermal Insulation
U-value as low as 0.4W/(m2•K).
A 8.3 mm thick LandVac has better thermal insulation effect than the 1.5m thick brick wall.

Thanks to the high vacuum chamber of LandVac, which effectively blocks the thermal transmission,
the thermal insulation performance of LandVac is 2-4 times better than insulated glass and 6-10 times better than single pane glass.
The properties of this product meet all international thermal transmittance requirements on windows and doors for passive houses.

Common glass
Common glass
LandVac
LandVac
Noise Reduction
With its weighted sound reduction index exceeding 39 dB,
LandVac makes rooms in downtown quiet like a library.

Thanks to the high vacuum chamber of LandVac , which effectively blocks the sound transmission, 

the sound insulation performance is far better than insulated glass. It has remarkable acoustic properties 

against high penetrative medium and low frequency noises such as traffic and construction noises. 

Noise Reduction
Noise Reduction
Free of condensation
Free of condensation even when the temperature falls below -50℃.
Ultra low dew point allows LandVac in buildings and freezers to maintain their exceptional transparency.

LandVac effectively eliminates the dew condensation between glass layers. 

Meanwhile, the high thermal resistance property significantly lowers the dew point of LandVac surface as well.

Free of condensation
Common glass
LandVac
Tempered
Surface stress and granularity meet tempered glass standards and passed several key safety tests including wind resistance test and impact test.

Each piece of 8.3 mm thick LandVac can withstand the pressure of a 1.7 m tall sand column, equivalent to 1 m2 of LandVac having 40 adults with an average body weight of 70 kg standing on the surface.

By adopting low temperature sealing technology, LandVac completely retains the high strength, impact resistance, and other safety attributes of tempered glass. In case the glass breaks, it shatters into small and less harmful honeycomb shaped particles.

Tempered
Tempered
Thin Structure
Considerably reducing the costs for components, storage and logistic operations.

In comparison with triple-pane insulated glass, LandVac has only a quarter of its thickness and weighs at least 10 kg less per square meter while managing a better U-value. 

8.3mm
The thickness of LandVac is only 8.3 mm.
10kg/m²
LandVac weighs at least 10 kg less per square meter than insulated glass while managing a better U-value.
Outstanding Environmental Adaptability
Since there is no thermal expansion or contraction in the high vacuum chamber of LandVac,
the use of LandVac is not limited by geographical locations or elevation.

Furthermore, whether it’s mounted horizontally or with an angle,
the U-value of LandVac remains constant regardless of the installation position, 

which ensures excellent energy saving effect.

Super Long Life
The service life expectancy of LandVac exceeds 25 years.

By using flexible edge sealing materials, LandVac overcomes the seal failure problem caused by fragile sealing materials 

especially in the environment with big temperature difference between the inner and outer glass surfaces. 

Moreover, with the assistance of built-in high efficiency getter material, it can sustain a high level of vacuum for a long time.

Lead-free
The Testing Report from CTI, which is authorized by RoHS EU, has witnessed the outstanding environmental-friendly performance of LandVac.
The unique sealing material and sealing process helped LandVac pass the testing from EU RoHS
and enter the global market, making its contributions to the green environment.
LandVac Specifications
Products
Type of Low-e Glass
U-value
(W/m²·K)
Visible Light
(Transmittance)
Visible Light
(Outdoor Reflectivity)
Visible Light
(Indoor Reflectivity)
Total Solar
Energy Transmittance
Shading Coefficient
(Sc)
Weighted Sound Reduction Index
(dB)
Vacuum Insulated Glas
5TL+0.3V+5T
Off-line Double Silver
0.44
68%
11%
12%
0.38
0.44
39
Vacuum Insulated Glass
5TL+0.3V+5T
Off-line Single Silver
0.55
78%
12%
12%
0.58
0.67
39
LandVac plus Insulated
5T+12A+5TL+0.3V+T5
Off-line Double Silver
0.42
60%
17%
16%
0.37
0.42
40
LandVac plus Insulated
5T+12A+5TL+0.3V+T5
Off-line Single Silver
0.52
70%
18%
17%
0.51
0.59
40
LandVac plus Laminated
5T+0.76P+5TL+0.3V+5T
Off-line Double Silver
0.44
65%
10%
12%
0.35
0.4
41
LandVac plus Laminated
5T+0.76P+5TL+0.3V+5T
Off-line Single Silver
0.54
76%
11%
12%
0.5
0.58
41

Remarks:
1.T: Tempered glass; L: Low-E glass; V: Vacuum space; A: Air space; P: PVB interlayer.
2.Low-E coating on the second side of the vacuum insulated glass.
3.The thermal performance data in the table are calculated with Windows 7 software with reference to JGJ/T 151-2008.
4.Above data are for reference only. Parameters for specific products need to be calculated separately. For parameters related to a specific product, please refer to the data provided by LandGlass.

LandVac, Exceeding Expectations!
LandVac is installed in many architectural projects by its outstanding performance and reliable quality. LandVac can guarantee the better sound insulation, greater thermal insulation and higher safety for the architectures.

Cases
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