Colored Roofs for Steel Buildings
Sunday, March 5th, 2006 The heat build-up within a steel building is, in large part, determined by the building’s roof reflectance under the sun. “Cool roof” technology initiatives have been applied in the 21st century to help improve any steel building’s resistance to heat.
Roofs that have non-reflective pigments of the same color will not dissipate and reflect heat as roofs employing infrared reflecting elements in their composition. Infrared reflecting elements on roofs keep steel building interiors cooler.
The reflecting of light and heat is only a partial answer for the need for dissipation of the light and heat away from the steel building. Heat that is not reflected by the roof is absorbed into the structure. Steel buildings will react in one or a combination of three ways with exposure to light- it will absorb it, reflect it, or transmit