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Professional Roofing Consultants

Professional Roofing Consultants

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

Project Data
Year Completed 2013
Client

Port of Portland
Services Roofing
Category Government
Cost $1,216,910
Reference Brad Harrison
Port of Portland
Email
503-415-3529
P.O. Box 3529
Portland, OR 97208
Project Team

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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.
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