What are reflective roof coatings?
Reflective roof coatings, also known as Albedo coatings, are products applied to roofs to reduce solar heat, especially in areas with hot, sunny weather for much of the year. Because they can reduce surface temperatures by up to 80 ° F (about 45 ° C), these products also have a large impact on the cost of cooling. Lawrence Berkeley in California estimates that reflective roof coatings can save home owners at least 25% of energy consumption.
Another advantage of reflective roof coatings is that they contain blocking pigments. Since the UV rays of age are considerably roof, the use of the roof roofs can extend the roof life by up to 15 years. This is especially true in buildings with low slopes or flat roofs that tend to absorb solar energy at higher speed than sloping roofs. Since roof maintenance represents more than 80% of the total cost of building maintenance, any product that can prolong the life of the roof, BUDE has resulted in considerable savings.
Reflective coatings act like mirrors, reflecting the sun's radiant energy back into space. Manufacturers with a classification system came to assess the level of reflectivity of various products. The most effective are products with a high content of Albedo, such as a clear white color, with a solar reflectivity of 85%.
Some materials used as roof coatings include: elastomeric, polyurethane and acrylic paints; single -layer roof leaves made of rubber, plastic or PVC; clay or concrete tiles; and metal, available in natural and dark colored leaves. Some materials can be easily applied with a roller, as in the case of colors, while others, such as PVC leaves, require the use of seals or thermal seal made by a professional. If the cost of considering, the best choice is white titanium dioxide and aluminum leaves. Are cheap, easy to apply and requestShe eats little maintenance.
Since 1998, Cool Root, or CRRC, provides the marking of energy stars to roof products that are undergoing their quality tests. Since roof coatings tend to lose their reflectance over time due to dust and dew, regular maintenance in the form of re -administration or cleaning is a need.
The cost of reflective roof coatings varies from $ 0.75 in USD (USD) per square foot per acrylic paints up to $ 3 per square foot for PVC single -layer membranes. The price usually includes materials and installation. While the price on roofing founders is usually higher than that of a traditional roof, savings in energy accounts are more than justified by added costs. Reflective roof coatings are actually paid in a few years.