Total Solar Energy Rejection Window Film

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.

Total solar energy rejection window film.

The total solar energy tser specification along with another specification that is commonly used in the glass industry called the solar heat gain coefficient shgc are two excellent ways for a consumer to compare the performance of one window film to another. Window films alone cannot lower the temperature of a room but they can reduce the rate that energy enters a room which helps reduce the load placed air conditioning systems. Total solar energy rejected is the amount of heat that is cut out by the film. Total solar energy rejected tser on angle is not an industry accepted measure of a films performance and therefore cannot be used to assert the superiority of one film product over another.

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 then almost no heat will be transmitted through a film. The nfrc is the only independent agency to rate window performance and. The higher this number is the more heat the film will stop from entering the room. The industry accepted and most accurate performance values used to report heat gain or rejection due to the application of window film are solar heat gain coefficient shgc and its counterpart total solar energy rejected tser.

The lower the number the less visible light is being transmitted darker. If you want a film that cuts out the most light and heat choose one with a very low vlt around 5 15 and a very high total solar energy rejected around 80 85. Therefore 1 tser shgc thus if the tser of a specified film glass combination is 58 then 1 58 42 which is the shgc of the window. 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.

Lets go through these few specifications that are most common in all window film one by one so that consumers can understand better. Comparing window tinting film. The total amount of visible light that is transmitted through the window film glass. The sum of the tser total solar energy rejection in decimal form of a glazing system and its shgc value is 1.