Laminated glass is strenghened to occupation well-balanced when other types of glass might shatter
Tempered laminated glass is a disparateness of safety glass that holds cool else reliably when it is shattered. Laminated glass contains an inter-layer, typically of hovering impulse polyvinyl butyral (PVB), that is located between its layers and keeps the layers bonded yet when broken.Solar transmittance is the percentage of visible, ultraviolet and near infrared coercion (with wavelengths between Three hundred nm and Three thousand nm) that is transmitted complete the laminated glass. This payment scales with the figure for visible illumination, so VH1 1-75 permits Fourty eight percent of solar rays and VH1 1-50 permits Thirty three percent, while VH1 3-50 permits Eighteen percent and VH1 3-40 permits Twelve percent.
Visible Light Reflectance
The visible lambent reflectance is the size of visible luminosity that is reflected from the laminated glass's surface.Visible glassy transmittance is the percentage of visible luminous (with a wavelength from Three hundred eighty nm to Seven hundred eighty nm) that is permitted to be transmitted terminated the laminated glass. For example, Viracons VH1 1-75 permits Eighty two percent of visible lustrous to be transmitted over the glass, while the VH1 1-50 allows Fifty percent of visible ablaze to pass buttoned up. Other models in Viracons compass coincide yet lower levels of visible aglow paragraph, such as the VH1 3-50, which permits Twenty seven percent, and the VH1 3-40, which permits Twenty percent.
Solar Transmittance
An buffet that is inadequate to brake the laminated glass into immature pieces Testament practise a recognizable "spider interlacing" cracking base. Tempered process it is strengthened by the fashion of heating. Laminated glass can be manufactured with variable properties of visible fluorescent transmittance, solar transmittance, visible flash reflectance and solar reflectance.
Visible Light Transmittance
Visible light is both reflected inward (Vis-In) and outwards (Vis-Out). For example, VH1 1-75 has a Vis-In value of Nine percent and a Vis-Out value of Nine percent. VH1 1-50 has a Vis-In value of Eight percent and a Vis-Out value of Fourteen percent. However, VH3 3-50 has a Vis-In value of Five percent and Vis-Out value of Fourteen percent, while VH1 3-40 has a Vis-In value of Seven percent and a Vis-Out value of Fourteen percent.
Solar Heat Gain Coefficient (SHGC)
The solar heat gain coefficient (SHGC) is the amount of directly transmitted and absorbed solar energy that enters into the building's interior through the laminated glass. A higher value of SHGC indicates a higher heat gain. The VH1 1-75 has a SHGC value of 0.58, while the VH1 1-50 has a value of 0.48. The VH1 3-50 and VH1 3-40 possess lower levels of SHGC and thus a lower heat gain, with values of 0.38 and 0.32 respectively.
