Cool roofing systems
Cool roofing systems are roofing systems that can reflect visible, infrared, and ultraviolet wavelengths of the sun and can release a large percentage of absorbed heat. As a result, heat transfer to the building is reduced. Cool roofs fall under one of three categories: inherently cool, green-planted roofs, or coated with cool material.
Montgomery Contractors is your cool roofing systems expert. We specialize in commercial roofing and have local offices in Troy and Asheboro NC.
Inherently Cool Roofs
In this category, roof membranes are made of white or light-colored materials that achieve the highest reflectance and emittance measurements. For example, a roof made of thermoplastic white vinyl can reflect 80% more of the sun’s rays and emit 70% of the solar radiation that the building absorbs. On the other hand, an asphalt roof can only reflect up to 26%, which results to greater heat transfer to the building interior.
A green roof is a roof that is partially or completely covered with vegetation that are planted over a waterproofing membrane. It consists of many layers that include the insulation layer, a waterproof membrane, a drainage layer, a growing medium, plants, and sometimes a wind blanket.
Green roofs are either intensive or extensive. Labor-intensive roof gardens require a reasonable amount of garden soil while extensive green roofs are almost self-sustaining.
If there is already an existing roof or a new roof needs to be roof reflective, roofers apply a specifically designed white roof coating on the surface of the roof. The coating has to be Energy Star rated.
There are many benefits to using cool roofs. It reduces a building’s heat gain, enhances life expectancy of the roof membrane and the building’s cooling equipment, improves thermal efficiency of the roof insulation, reduces the demand for electricity by 10%, and reduces greenhouse gas emissions and air pollution.
Call Montgomery Contractors, Inc. today for a free estimate: (910)-220-2172 Troy NC office, and (336)-223-8877 Asheboro NC office.