VR40SM

 VR40SM(ปรอทดำ40%)

Performance Results

Shading Coefficient(SC)     0.48

TOTAL SOLAR ENERGY REJECT   57%

VISIBLE LIGHT TRANSMITTANCE 33%

VISIBLE LIGHT REFLECTANCE   14%

TOTAL SOLAR ENERGY REFLECTANCE    22%

TOTAL SOLAR ENERGY ABSORPTANCE   44%

TOTAL SOLAR ENERGY TRANSMITTANCE 30%

THICKNESS 2 MIL 

Performance results were generated from testing 1/8" (3mm) thick clear glass and have been measured, calculated and reported in accordance with ASTM, ASHRAE and AIMCAL standards. Performance results  are subject to variations within industry standards. 

ShadingCoefficient(SC)
The ratio of solar heat gain passing through a glazing system to the solar heat gain that occurs under the same
conditions if the window were made of clear, un-shaded double strength window glass. The lower the number,
the better the solar shading qualities of the glazingsystem.
Total Solar Energy Rejected
Measures the window film’s ability to reject solar heat in the form of visible light and invisible infrared radiation.
VISIBLE LIGHT TRANSMITTANCE Visible Light Transmittance (VLT) is a measure of how much visible light passes through a window or door glass. It is expressed as a percentage, representing the amount of visible light transmitted through the glass relative to the total visible light that hits the surface. A higher VLT percentage means more visible light is transmitted, while a lower VLT percentage  means less visible light is transmitted VISIBLE LIGHT REFLECTANCE measures the percentage of visible light that is being reflected by the window film. The higher the number, the more shiny the appearance of the film. Total Solar Energy Reflectance
Measures the percentage of solar energy and visible light that are being reflected by the window film. Highly
reflective films offer high heat rejection capability. Newer technology films need not be dark nor highly reflective
to provide impressive solar energy performance.
Total Solar Energy Absorptance
Measures the percentage of solar energy and visible light that are absorbed by the window film. As absorptance
levels of a particular film increase, so will the temperature of the glass. Always refer to a manufacturer’s film-to-glass
installation recommendations.
Total Solar Energy Transmittance
Measures the percentage of solar energy and visible light (daylight) that passes through a glazing system. All solar
control films reduce visible light transmission in order to provide solar heat control. Lighter films tend to transmit
higher levels of solar energy and visible light while darker and more reflective films have lower transmittance levels.
U-Value
A measurement of heat transfer due to outdoor/indoor temperature differences; describing the dealt loss through
a material. The lower the U-Value, the less heat transfers.
Emissivity
Measures the surface’s ability to absorb or reflect far-infrared radiation. The lower the emissivity the higher
the far-infrared reflection.