Thanks to the high vacuum chamber of LandVac , which effectively blocks the sound transmission,
LandVac has remarkable acoustic properties against high penetrative medium and low frequency noises such as traffic and construction noises
while laminated glass has remarkable acoustic properties against medium and high frequency noises. The best sound insulation effects can be achieved
with the combination of LandVac and laminated glass.
Surface stress and granularity meet tempered glass standards and passed several key safety tests including wind resistance test and impact test. Each piece of 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.
Even if the laminated glass is shattered, the particles will adhere to the film to prevent the hazard of serious injury or accident caused by falling shards. The extremely high safety allows it to be used as building skylights, sun room, and other applications. Lead-free，the Testing Report from CTI, which is authorized by RoHS EU, has witnessed the outstanding environmental-friendly performance of LandVac.
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.
Common glass
LandVacIn 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.
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.
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.
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 
LandVac 
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.
LandVac
LandVac plus Insulated
LandVac plus Laminated