The Use of Reflective Foil in Steel Buildings
Saturday, September 17th, 2005Since World War II reflective insulation has become more and more popular for a variety of applications, most notably in steel buildings. Recently, the use of reflective materials has rapidly gained acceptance in a broad variety of construction applications. Reflective foil works on a very simple principle of being able to reflect radiant energy back from the foil and diffuse it through the building.
The control of heat transfer is the key to temperature management in any building. There is a difference, usually, in temperature inside and outside of a steel building. Heat typically moves from hotter areas to cooler region until the temperature is levelized across a given area. Insulation’s purpose is to impede this process in hot weather, to keep heat from being transferred into the building. Conversely, you want the insulation to stop the transfer of heat out of a steel building in cold weather.
There are three ways in which heat transfer occurs in a steel building. The first is radiation, which is the transfer of heat by infrared radiation across an open field of air space. The second is convection. This is the transfer of heat by the flow of air or by