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Radiant Heat / Radiant Energy
Electromagnetic radiation is energy directed at the earth from the Sun which travels in waves that are measured in nanometers.
Wavelengths are how all forms of energy are expressed. The length of a full cycle in a repeating curve is a wavelength.
A billionth part of a meter or 0.0000000394 inches equals a nanometer.
Three types of radiation comprise the solar
spectrum which are visible light (44%), infrared (53%) and ultraviolet (UV). We can see visible light and "feel
the heat" of infrared. The visible band of the solar spectrum runs roughly from 380 nanometers to 780 nanometers.
Higher than 78k0 nanometers you get the rays that can not be seen but you can feel as heat. Ultraviolet rays which are
also invisible, are in the solar spectrum range of 100 to 380 nanometers.
Ultraviolet rays have three types, UV-A,
UV-B, and UV-C. The Ozone layers and the earth's atmosphere filter away all UV-C radiation below 290 nanometers
and a percentage of UV-B rays. The primary cause of sunburns is the UV-B rays. Visible skin aging is caused by
UV-A rays that also have longer wavelengths.
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- Conduction
- Convection
- Radiation
Radiation
When radiant
energy strikes glass, the glass will absorb part of the heat and through conduction, transfer part of the heat directly to
the air in contact with it, but mostly through the framing system in contact with the glass.
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Some of the information above was taken from the IWFA manual of "Advanced Solar Control Guide."
Solar Control Films, your tint supplier, distributes film from two tint service centers located in Houston, Texas and St.
Louis, MO. IWFA certified solar control specialist will be happy to help conduct energy audits of your building to block
solar heat before it enters your building. To get your building energy audit, supply your solar control specialist with
the total square feet of glass that faces each direction, the cost of energy per kWh, your city, # of floors and your contact
information. Solar film can block up to 88% of the heat before it passes through your window with a solar film
that has a SC of .18. In Houston, a consumer can save up to .14 kWh per square foot of glass per year with that film.
At $.16 kWh hour, the consumer will save $2.24 per square foot per year. With 1,000 square feet of glass, the savings
would be $2,240 per year. And the building owner saves that money year after year. Solar tint doesn't cost
money, it saves you money. And it saves energy. Solar tint or metalized tint is the Green thing to do and it's
very easy. To learn more about how solar tint is manufactured, how solar film works, conserving energy, going green and about Low E Glass vs solar film, click on the words. Solar Control Films' tint distributor centers supply premium solar film, metalized film,
auto film, solar tint, metalized tint, auto tint, commercial tint, residential tint, safety tint, safety film, commercial
film, and residential film. SCF will recommend a professional tinter so that you can start saving money and energy today
with solar film. Call 877.989.3456 to find out more information and to get an energy audit at no cost.
IWFA Website
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