Portland State University will construct a 40,000-sf green roof research site on the top of a new Walmart store in North Portland, Ore., and compare it to a 52,000 sf section of roof with a white membrane.
The study provides an opportunity to evaluate the effectiveness of green and white roofs on the same building. The Green Building Research Laboratory at Portland State will compare how well each roof type filters rainwater and whether energy use and heat-island issues can be reduced.
The green roof is being installed in three sections, each designed to test various kinds of green roof design, such as materials and soil depth.
Related Stories
Codes and Standards | May 13, 2021
LEED-certified federal buildings don’t use less energy than average
May be due to trade-offs on how score is developed.
Codes and Standards | May 12, 2021
White paper examines how to reduce pathogen transmission in ventilation
Pressure barriers and airflow distribution can be effective in existing buildings.
Codes and Standards | May 11, 2021
Pressure builds on White House to rein in cost of lumber
Spike in prices has added nearly $36,000 to price of average new home.
Codes and Standards | May 11, 2021
Residential codes should be upgraded to protect from cooking pollutants
Report examines ventilation standards, calls for increased public awareness of issue.
Codes and Standards | May 6, 2021
Blue roofs can provide relief to overwhelmed stormwater systems
Benefits most evident in industrial commercial areas.
Codes and Standards | May 5, 2021
Majority of schools took steps to improve air quality during pandemic
Districts still have unmet needs, face high costs and outdated building infrastructure.
Codes and Standards | May 4, 2021
Cost to keep Miami dry over next few decades is $4 billion
Rising seas demand big investment.
Codes and Standards | May 3, 2021
Fire stops critical to preserving three-decker housing
Old multi-family structures continue to provide badly needed homes in urban zones.
Codes and Standards | Apr 29, 2021
Dept. of Energy publishes energy savings analysis for ANSI/ASHRAE/IES Standard 90.1-2019
More than 4% savings for commercial buildings found for the updated code.
Codes and Standards | Apr 28, 2021
Building-integrated solar power turns buildings into power plants
Multiple alternatives could replace or complement rack-mounted PV arrays.
