Debate Continues Over Benefits of White Roofs

Researchers at the Lawrence Berkeley National Laboratory recently completed an economic analysis of white roofs versus their green and black counterparts. The debate over the relative merits of white versus green roofs is far from over, however.

Lidija Grozdanic shares news of a study published in the Energy and Buildings Journal that “compared three types of roofs – green, black and white – and came to the conclusion that white roofs have great economic benefits, and they are also three times more effective than the other two at fighting climate change.”

Among the findings of the report:

  • Green roofs’ high installation/replacement costs outweigh their long service lives.
  • Per unit area, white roofs cool the globe 3× more effectively than green roofs.

Still, earlier studies conflict with the results of the new study, as noted by Grozdanic: “Although we are excited to find out how different roofing strategies may affect climate change, one should be aware of the fact that these investigations involve a wide spectrum of factors and potential consequences far too complex for a hotheaded (pun intended) thumbs-up verdict.”

Full Story: New Study Shows White Roofs are Three Times More Effective than Green Roofs at Fighting Climate Change Read more: New Study Sho

Comments

Prepare for the AICP Exam

Join the thousands of students who have utilized the Planetizen AICP* Exam Preparation Class to prepare for the American Planning Association's AICP* exam.
Starting at $199
Planetizen Courses image ad

Planetizen Courses

Advance your career with subscription-based online courses tailored to the urban planning professional.
Starting at $14.95 a month
Woman wearing city map tote bag

City Shoulder Totes - New Cities Added!

Durable CityFabric© shoulder tote bags available from 9 different cities.
$22.00

Stay thirsty, urbanists

These sturdy water bottles are eco-friendly and perfect for urbanists on the go.
$19.00