Transforming urban environments with smog-reducing granules

By SOPREMA. 

Discover the science behind the air-preserving innovation of ECO3 granules and see how this roofing solution contributes to a greener future. 

At SOPREMA, we are committed to protecting people and property, which is why our ECO3 granule surfaced membranes are designed in a way that drastically reduces the amount of ground level pollutants and ultimately decreases the greenhouse effect. This article explores how the photocatalyst roof coating helps absorb nitrogen oxide gases in the atmosphere and how it contributes to healthier communities. Watch the video below to learn more about this collaboration between 3M and SOPREMA for low-slope roofing.  

What are nitrogen oxide (NOx) gases? 

Nitrogen oxide gases are harmful and irritating gases formed by the burning of fuels. These gases are emitted by many sources including cars, trucks, power plants and other industrial production processes and then released into the air. These gases react with VOCs (volatile organic compounds) in the atmosphere and sunlight to create what is commonly thought of as smog or ozone. These ground-level gases are unhealthy for humans, animals and plants. 

How does the smog-reducing granule work? 

The smog-reducing granules are coated with a specialized photocatalytic coating. The photocatalyst reacts in the presence of ultraviolet light, like sunlight. This photocatalytic reaction absorbs the nitrogen oxides in the atmosphere and accelerates the oxidation process. The reaction then creates water-soluble ions that are washed away by dew or rainwater. 

To prove the technology for use in roofing, Lawrence Berkley National Laboratory conducted a study validating the efficacy of the photocatalytic material in reducing smog and contributing towards air purification. 

How effective are smog-reducing granules? 

Every 3,000 square feet of ECO3 granule-surfaced membrane can offset the approximate emissions generated by driving 1,200 miles per year. This calculation varies depending on sunlight, humidity and the abundance of NOx in the atmosphere. 

For example, a 20,000 square-foot commercial roof (200 squares) surfaced with ECO3 granule-surfaced membrane can offset about 8,000 miles of car emissions yearly. That is the power of approximately 120 trees! 

To learn more about this air-preserving innovation, read our ECO3 Technology brochure. 

Original article source: SOPREMA