Standing Seam Metal Roof Solar Reflectance

Solar reflectance index sri.

Standing seam metal roof solar reflectance.

Colonial seam continuous standing seam metal roof panel with an integral seam. A standing seam metal roof integrated with solar panels is a powerful combination of durability longevity energy efficiency and most importantly value for the money. A cool metal roof with high solar reflectance and high thermal emittance would have a lower surface temperature as compared to a roof with low reflectance and low emittance. The best part about standing seam is that it s proven to last in pretty much any climate while providing superior durability longevity and energy savings.

Mbci manufactures quality standing seam metal roofing panels that are lightweight and last up to 60 years. Standing seam systems can be used for either metal roofing which is the most common or metal walls. Kynar 500 based painted metal roofing can achieve solar reflectance of over 70. When a standing seam metal roof is installed by specially trained professionals it will last for many decades and thus can be a permanent platform for a solar roofing system whether it be the old school crystalline pv panels or thin film solar laminates.

Reflected solar energy allows the roof surface to remain cooler which means less heat is transferred into the building. Double lock seam symmetrical seam one piece snap lock interlock and two piece snap lock interlock. In the case of a cool metal roof a lower surface temperature translates into less heat gain into the attic space or living space below the roof. Clipless one piece positive locking standing seam panel that provides a timeless roof appearance.

Sri measures the roof s ability to reject solar heat defined such that a standard black reflectance 0 05 emittance 0 90 is 0 and a standard white reflectance 0 80 emittance 0 90 is 100. Standing seam panels offer sleek lines that create a modern look. These designations indicate the metal roofs have high solar reflectivity and emissivity that can keep the interior of a building cool in the summer. There are four basic standing seam metal roof panel styles.

Urban heat island a built environment where the large portion of dark absorbing. In sunny warm weather conditions we ve found that the panels of a crystalline system mounted on a standing seam metal roof further reduce the heat factor by shading the metal roof surface. Cool roofs use coatings with known radiative properties that are specified in order to keep the roof surface temperature lower than it would have been with uncoated or traditional roofing materials during peak sun times.