Most roofing systems are built to drain rainwater run-off. However, there is one type of roofing that is designed for the retention of rainwater above the structure’s waterproofing element. It is called a “blue roof,” and no, it is not named because of its physical color.
In today’s blog post, Genesis Roofing, your local roofing company, discusses everything you need to know about blue roofs.
The Reason for Installing a Blue Roof
Many builders install blue roofs on buildings as an alternative to how stormwater runoff is being processed in urban areas. As it stands, cities manage runoff through ponds, drainage systems and other ground sources. Such systems carry runoff to sewers to be processed in wastewater treatment facilities.
In certain periods of intense storms, however, these ground sources can get overloaded. Rainwater and untreated sewage can find their way to other water sources, affecting the ecosystems of these areas. To solve this problem, many roof replacement services providers install roofs that can store excess water during times of rainfall.
Designing Blue Roofs
Blue roofs may still be fairly new, but their design shows promise when it comes to water processing. One iteration involves risers installed on surfaces to collect and pond water near a drainage outlet. Builders then equip the roofs further with miniature dams for water storage.
The most effective method of collecting water, however, is the use of trays that hold up to two inches of water. These are installed in such a way that they are separated from roofing membranes, protecting these areas from potential damage.
The good thing about blue roofs is that other notable roofing technologies can be incorporated in them to boost their environmental impact. For example, blue roofs can be installed with light-colored materials to reduce heat gain and ensure the buildings’ interior comfort.
Genesis Roofing is a licensed roofing contractor you can turn to for your residential and commercial roofing needs. Call us at (515) 200-1973 or fill out our contact form for a free no-obligation quote. We serve residents of Clive, IA, and the surrounding areas.