As hot weather is quickly approaching, it is recommended to protect your rooftop from the sun with a highly reflective or white roof coating. The sun’s rays are the leading cause of damage and deterioration to your roof out of all the natural elements your building is exposed to.
The sun’s IR and UV radiation cause harm to the roof and dries the surface out. The IR radiation causes temperature damage as it can heat the surface of an unprotected rooftop up to 160˚F and back down to 90˚F in a given day. This wide range of temperature variation causes the roof to significantly expand and contract leading to flashings and fastener failures. Over time, they are not able to keep up with the movement of the roof, causing the fasteners and flashing to pop off and loosen. The UV radiation from the sun causes brittleness and destroys the surface of the membrane, making it thinner and less durable. Cracks and alligatoring occur across the rooftop and the flexibility becomes compromised, leading to water penetrating into the building when it rains.
Reflective roof coatings such as a white roof coating system or a Cool Roof System provide your roof with the protection it needs from the harmful sun. These coating systems have the ability to reflect a majority of the sun’s heat away from the building, protecting the rooftop from the temperature damage and embrittlement explained above. The roof itself remains a much cooler temperature, allowing the roof to remain flexible without weathering or aging quickly. Roof maintenance costs are lowered and roof life is lengthened as the roof is protected from becoming brittle and weak.
When using the AcryShield High Reflectance A590 white roof coating, your roof will be able to reflect up to 92% of the sun’s radiation, meaning only 8% of the heat on a hot summer day will be absorbed into the building. This provides excellent energy savings benefits as you will not need to use your air conditioning unit as frequently or for as long. The interior of the building remains at a comfortable and much cooler temperature with much less air conditioning usage. The ability to reflect that much of the sun’s radiation away from the rooftop, will lower energy utility bills, lengthen your roofs lifespan and protect your rooftop from premature aging.
For more information on our highly reflective white roof coatings and Cool Roof Systems, download our FREE Full Line Brochure!