Retube Feeder Replacement Island Support Annex Building
Client: Golder Associates Inc. / Ontario Power Generation
Project Location: OPG Darlington Nuclear Generating Station
Cost of Construction: $50M
At a Glance:
- Field review during installation of waterproofing, wall system, fireproofing, glazing, and roof system
NA Engineering Associates Inc. provided supplemental building inspection services for the Refurbishment Project Office building and Retube Feeder Replacement Island Support Annex building project. The scope of our review included inspections for waterproofing, air and vapour barriers, insulated metal panels, glazing, roofing, firestopping, and fireproofing. Our team reviewed specifications and tender documents. We also participated in pre-install meetings with the general contractor and sub-contractors and reviewed mock-ups as part of the inspection process.
Throughout construction, we undertook regular inspections and prepared field reports. Where deficiencies were identified, we were required to inspect the repairs to the satisfaction of the General Contractor and Quality Assurance Contractor. On this project, the window installation did not meet the intent of the original design. We completed a third party water test based on the AAMA 501.2 Quality Assurance Test and Diagnostic Water Leakage Field Check. Through this testing, we identified deficiencies with the original glazing installation, and the required repairs were completed. We retested the windows for compliance to the satisfaction of all parties.
The Refurbishment Project Office building and Retube Feeder Replacement Island Support Annex building were built as part of Ontario Power Generation’s preparation to refurbish the nuclear station at the Darlington Nuclear Generating Station. The Refurbishment Project Office building is located just outside the security fence that delineates the perimeter of the station, and the Retube Feeder Replacement Island Support Annex building is located inside the security fence and will support the tube refurbishment.