Airport Way Laboratory Roof Area B Roof Replacement

Project Data
Year Completed 2013

Kaiser Permanente

Services Roofing
Category Medical
Reference Jonathan Kirkish
Jones Lang LaSalle Americas, Inc.
10180 SE Sunnyside Road
Clackamas, OR 97015

Project Team

View Team

Services Provided

Project Details

Project Details

Project Details

Kaiser Permanente Airport Way Laboratory is located within an 89,914 sf building in Portland, Oregon, and houses medical laboratories and testing facilities. PRC was requested to design the replacement of the existing roof membrane on one (Roof Area B) of the six roof areas, including drainage improvements and perimeter fall protection.

As part of the design concept, the slope to drainage needed to be enhanced to provide proper drainage and alleviate the sever ponding water conditions that had accelerated deterioration of the original roof membrane on Roof Area B. PRC specified a 1/8” tapered insulation assembly over the existing 1/8” existing structural slope.  By mandating the tapered insulation system, some of the existing clerestory window assemblies would be encased beneath the new insulation system, and two small separation walls along the two adjacent roof areas would need to be raised to match the new tapered roof system.  Each of these design challenges required coordination and support from the client.  Closing or removing windows is rarely a popular endeavor, but the need to correct the drainage flaw as well as increase the overall thermal value of the roof system outweighed the necessity to keep the windows in place.

PRC provided design documentation for the roof replacement system, including tapered insulation design, structural design and calculation (provided by a contracted structural engineer), and fall protection conceptual designs.  During the construction phase, PRC provided periodic QA/QC inspections and documentation as well as other construction administration services.