Total Solar Energy Rejection

The ir rejection rate is a number that lets customer understand that the film can reject majority of the heat from infrared it does not mean that if a large portion of the ir is blocked.

Total solar energy rejection.

The total solar energy tser specification along with another specification that is commonly used in the glass. Two common heat rejection indexes used are irr infrared rejection and tser total solar energy rejection. Separating the ir rejection for purposes of reporting heat gain is misleading. The total amount of visible light that is transmitted through the window film glass.

In order to determine how much heat a window and window film can block you need to check the specifications for total solar energy rejected. So if a film has a 65 ir it means the film rejects 65 but lets in 35 ir. Although it may be natural to. Total solar energy rejected tser is a factor that describes the total amount of solar energy uv visible ir that is rejected from passing through glass.

The shgc or its counterpart the total solar energy rejected tser reflects the true performance of solar heat gain or rejection through a window int o a building and its calculation includes ir rejection. Total solar energy rejected. The lower the number the less visible light is being transmitted darker. Total solar energy rejected tser on angle is not recognized by them as a measure of performance.

Data captured using nfrc guidelines and calculated for single pane clear glass. The higher the. The total amount of ultra violet that is rejected by the window film glass. Let us help you understand some of these common terms better.

Clearly then when we read the specification called total solar energy rejection we can now see that it is not referring to temperature reduction percentage but rather it is the percentage of incident solar energy rejected. Almost all window film block 99 100 of uv rays. Irr measures only the amount of ir infrared component that is rejected by the window film. All film products indeed all glazing systems have improved total solar energy rejection as the sun climbs higher in the sky and sunlight strikes a vertical glass window less directly.

Total infrared rejection properties are calculated over the spectral range of 780 2500nm. The higher the number the less ultra violet rays are behind transmitted. However irr does not measure the total amount of heat that is. The solar energy spectrum is composed of the uv visible light and infrared spectrums.

A lot of people think that infrared ir rejection and total solar energy rejection are the same thing but this is not the case. The total amount of solar energy heat rejected by the window film glass.