Japanese Gardens
2017 Metal Architecture Design Award for Metal Roofing
Project Details
Owner: Portland Japanese Garden
Location: Portland, OR
Architect: Kengo Kuma
- Design Assist
- Installation Services
- Custom Rain Screen
Bassett Construction provided a custom rain screen roof system for the Portland Japanese Garden’s Cultural Crossing expansion project.
Photos © Bassett Construction, Inc.
Cultural Crossing Expansion Project
A unique requirement of this roof system was that it needed to be walkable. Additionally, there were extreme wind load requirements on this project due to its hillside location. To meet these requirements, a custom engineered supporting fin system was utilized on the underside of the panels. The roof system buildup was complex but can be described as support angles and clips fastened and sealed to the roof system to create a raised level grid. Then custom extrusions attached directly to the back of the material with supports running across the field of the panels to create the walkable roof.
“The aluminum panels are wide and have channels between them that funnel off water. Bassett Construction Inc. installed the roof system, which is unique and was designed specifically for the cultural center. The joints in the upper rainscreen roof panels allow rainwater to drain through to a secondary, stainless steel water diversion system.”
~ Metal Construction News
Balazs Bognar, AIA, chief manager of Kengo Kuma and Associates says, “The metal roofs were, in fact, a series of materials that incrementally softened from stone on the courtyard surface to metal for the lower roofs to vegetated panels on the upper roofs, and finally to the actual context of the Pacific Northwest firs and cedars. The metal is part of the gradient.””
~ Metal Architect
