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
Codes and Standards | Mar 5, 2018
New guide helps planners assess innovation districts
The document is designed to aid in targeting resources toward innovative and inclusive economic development based on an area’s unique strengths and challenges.
Codes and Standards | Mar 1, 2018
Net zero commercial building trend shows strong momentum
Almost 50% more zero energy commercial buildings under construction in 2017.
Codes and Standards | Feb 28, 2018
AEC industry reported high levels of fraud, cyber breaches, and security incidents in 2017
83% experienced at least one fraud incident.
Codes and Standards | Feb 27, 2018
Smart surface solutions can improve disaster resilience, health and comfort in cities
Stormwater management, water quality, and heat island effect could all be impacted.
Codes and Standards | Feb 26, 2018
Bolstering energy efficiency would produce significant health benefits, ACEEE study says
Reducing energy consumption by 15% would save six lives a day.
Codes and Standards | Feb 22, 2018
GBCI will certify underwriting standard for energy efficiency projects
Investor Ready Energy Efficiency (IREE) certification aims to boost confidence in predicted energy and financial savings.
Codes and Standards | Feb 21, 2018
FEMA document provides simplified seismic design provisions for low-hazard regions
Forty four states have areas defined as low-hazard.
Codes and Standards | Feb 20, 2018
Federal budget includes disaster mitigation provisions
Bipartisan bill encourages states to adopt latest building codes.
Codes and Standards | Feb 19, 2018
Easy access to indoor environment controls yields improved efficiency and workplace productivity
JLL/Purdue University project is developing algorithms to improve indoor comfort.
Codes and Standards | Feb 14, 2018
After Energy Star stopped certifying medical properties, a REIT developed its own certification
Welltower uses internal system to evaluate total building performance.