Port of Portland / Marine Terminal 6 - Cargo Distribution Center Warehouse Roof Replacement Project

Project Data
Year Completed 2013

Port of Portland

Services Roofing
Category Government
Cost $1,216,910
Reference Brad Harrison
Port of Portland
P.O. Box 3529
Portland, OR 97208

Project Team

View Team

Services Provided

Project Details

Project Details

Project Details

PRC provided initial review of the existing roof system in place and determined cost estimates and design criteria for a roof replacement project.  In coordination with a structural engineer, Construction Documents were generated and provided to the Port for bidding. Two separate projects were designed; a roof replacement project, which included a seismic upgrade project at the roof level, and an additional seismic upgrade project to occur independently.   The roof replacement project included the following:

  • Removal of the existing roof system down to the plywood sheathing.
  • Installation of a new FM approved roof system which included the installation of ¾” overlay board and a 3-ply asphalt built-up roof system with a granule-surfaced cap sheet and SBS modified bitumen base flashings. 
  • Fabrication and installation of parapet walls along the north and south perimeters to facilitate additional slope requirements to provide positive drainage.
  • Fabrication and installation of 24 gauge pre-coated sheet metal flashings at parapet walls, perimeter curbed edges and penetrations.
  • Installation of fall arrest anchors upslope of each drain for accessibility to each drain and the parapet wall when required.