SGH investigated the causes of deterioration and leakage, and designed comprehensive repairs to the facade, including rebuilding portions of the facade to address leakage and corrosion of embedded anchors and lintels. For this project, we:
- Conducted a concrete facade survey, including review of embedded steel depths, depth of carbonation, and review of previously applied coating.
- Performed water testing of windows and facades to determine paths of leakage.
- Recommended temporary make-safe repairs.
- Designed permanent facade repairs, including rebuilding of spandrel brick areas as cavity wall systems, replacement of corroding lintels, rebuilding of parapets, and patching and recoating of concrete. Our repair design allowed work to be performed from the exterior so that the building remained 100% occupied during construction.
- Oversaw mock-up of proposed repairs in two locations to determine feasibility and occupant disruption and reviewed mock-ups with local historic commission.
The first phase of construction is complete and we are currently performing construction administration services for second phase.