Cool roofs are required on most new non-residential buildings in California, but the regulation may be worsening smog.
Cool roofs combat the urban heat island effect by reflecting heat back into the atmosphere. But they also reflect more ultra-violet (UV) light back into the atmosphere, creating more favorable conditions for the chemical reaction that forms ozone or smog.
Southern California would violate federal particulate matter standards for an additional two days a year if cool roofs are widely adopted throughout the region, according to a study by the state’s South Coast Air Quality Management District. Smog would also worsen, especially in Riverside and San Bernardino Counties.
Nevertheless, a researcher for the air quality district said the benefits of cool roofs including lower energy bills, reduced energy consumption, and fewer people suffering from heat-related illnesses would likely outweigh the drawbacks.
Related Stories
| Jan 10, 2014
What the states should do to prevent more school shootings
To tell the truth, I didn’t want to write about the terrible events of December 14, 2012, when 20 children and six adults were gunned down at Sandy Hook Elementary School in Newtown, Conn. I figured other media would provide ample coverage, and anything we did would look cheap or inappropriate. But two things turned me around.
| Jan 8, 2014
Strengthened sprinkler rules could aid push for mid-rise wood structures in Canada
Strengthened sprinkler regulations proposed for the 2015 National Building Code of Canada (NBCC) could help a movement to allow midrise wood structures.
| Jan 8, 2014
New materials should help boost sustainability in cities by 2020
Newer developments include windows made with nano-crystals that control intense heat penetration while lighting living areas from the outside.
| Jan 8, 2014
Architect sentenced to a year in jail for firefighter's death
Architect Gerhard Becker was sentenced to a year in LA county jail after pleading no contest to the manslaughter of a firefighter who died while trying to contain a fire in a home the architect had designed for himself.
| Jan 8, 2014
United Association, NRDC seek major plumbing code changes
Proposed changes include mandating the insulation of hot water piping in new buildings.
| Jan 2, 2014
EPA move to assert oversight on small bodies of water among top regulatory battles for 2014
The EPA has started the process of declaring that it has the power to regulate streams, brooks, and small ponds.
| Jan 2, 2014
Paseo Verde in Philadelphia is nation’s first LEED Platinum neighborhood development
Paseo Verde, a mixed-use, mixed-income community hosted a ribbon cutting ceremony last month.
| Jan 2, 2014
Green infrastructure prominent in Akron, Ohio's sewer plans
City officials in Akron, Ohio want to prevent stormwater from entering its combined sewer system through the use of green infrastructure.
| Jan 2, 2014
OSHA to hold public meeting on proposed rule to improve tracking of workplace injuries
The Occupational Safety and Health Administration (OSHA) has scheduled a public meeting to allow interested parties to comment on the proposed rule to improve tracking of workplace injuries and illnesses.
| Jan 2, 2014
Measuring whole building energy use among big changes in LEED v4
A new prerequisite in LEED v4 calls for each project to measure whole building energy use, and then share that data with USGBC.