A white – or “cool” – roof features light-colored finishes to reflect sunlight and improve overall building efficiency. A white roof improves occupant comfort and helps keep air conditioning costs in check.
A variety of different materials can be used to create a white roof. Many manufacturers add reflective coatings to traditional roofing materials to meet growing demand. Others offer special paints or coatings, which can be applied over an existing roof structure to meet energy efficiency goals or local laws.
This type of roof is painted with solar reflective white coating and unlike traditional black roofs which reflect only 20 percent of sunlight, this one reflects up to 90 percent of sunlight.
The white roof provides effective insulation for thermal heat protection during the summer but increases heating energy load during the cold winter.
The physics behind white roofing is simple. Solar energy delivers heat from the sunlight which is readily absorbed by dark colors. On the other hand, lighter colors reflect a greater amount of radiation to keep a building cooler.
White roofs come in a range of colors and materials and can be used on both commercial and residential buildings.
White roofs offer several benefits, including the following:
- Saving on energy used for air conditioning
- Mitigation the urban heat island effect
- Reducing the warming effect by reducing greenhouse gas emissions
Roofs are constantly exposed to harsh weather conditions such as rain, wind, and harmful solar rays. As a result, a roof has to be strong to endure these elements and at the same time keep a home comfortable all year round. A white roofing system helps homeowners achieve this.
The white roof possesses hail resistant properties and therefore makes a viable option for homeowners in areas that receive greater amounts of hail. This roofing system can help homeowners to save thousands of dollars that they could spend on repairs. Besides, the white roof needs minimal maintenance.
White roofs help in curbing climate change. Replacing non-reflective, dark roofs with white ones results in an equivalent CO2 offset. Being more reflective than their green counterparts, white roofs white roofs offset a huge portion of the warming effect from greenhouse gas emissions.
Although both white and green roofs do a good job of cooling buildings and the air in urban areas, white roofs are three times more effective at countering climate change than green roofs.
White roofs experience less heat related warping and cracking hence they have an extended life as compared to black roofs. White roofing reduces waste added to landfills.
Adopting the white roofing system in the place of traditional black roofs is a convenient way of reducing cooling requirements. A white roof is a promising solution for both residential and commercial buildings that helps to lower energy costs, repair and maintenance costs.
Are you interested in the installation of a white roof? If so, contact Central Roofing Company™ and learn about our installation services.