Honeywell

PORTLAND, Ore. — Portland State University’s (PSU) Green Building Research Laboratory is partnering with Walmart to build a green roof on top of a local North Portland store. The university and Walmart will participate in a two-year research partnership to construct a 40,000-square-foot green roof and collect in-depth data to benefit future projects. The green roof project will be the largest in the city of Portland when Walmart’s new Hayden Island Meadows store opens Nov. 13.