Block 20

Portland rain and 22 stories



Component Quantities: 80,000 MSF of DensElement® Sheathing
Key Companies:
Owner: Hoyt Realty Group General Contractor: Andersen Construction Architect: Bora Architects Sub-Contractor: Western Partitions Inc.


A city known for constant rains, dramatic shifts in climate throughout the year, and perpetual moisture, Portland, Oregon provides unique challenges for any construction project. When Hoyt Realty Group hired Bora Architects to design the expansive, 246-foot-tall Block 20 Condominium Tower in downtown Portland, it was clear that novel solutions would be needed if the project was to be completed on time and within budget.


While initially intrigued by the DensElement® Barrier System, first-hand experience using it on a project like the Block 20 Condominium Tower has turned once wary builders into true believers. “We have branches in Seattle, Eugene, Spokane, and Reno with our home office here in Portland, Oregon,” Quintrell pointed out. “All four of our divisions outside of Portland, as well as Portland, are looking to use this product on every single project we have. That’s how much we’re standing behind the future of DensElement® Barrier System and GP.”

"We are always looking for innovations and ways to build faster, ways to build smarter. And, it just made sense to us. To have the weather resistive barrier integrated into it was exactly what we need. And, it seemed like an inevitable progression for type one construction."
‒Brad Nile, Project Executive, Andersen Construction

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