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Calgary Place Apartments, a mixed-use commercial and residential complex constructed circa 1970, underwent a roof assessment to address recurring water leakage issues. The complex, located between 8th Street SW and 9th Street SW, south of 6th Avenue SW, consists of two 37-storey residential towers, each with a single-storey mechanical penthouse, connected by a common area podium and above-ground parking garage. Retail units are located at grade along the street level.
Multiple roof leaks had been reported over the past few years, primarily affecting the boiler rooms and 37th-floor units of both towers. Engineering Link was engaged to perform a comprehensive roof assessment to evaluate the current condition, document existing roof assemblies, and recommend replacement options. This assessment involved a detailed document review, visual inspections, wind load calculations, and exploratory openings to better understand the roof assemblies.
Engineering Link provided budgetary estimates for replacement options, with the planned replacement scheduled for 2025. The assessment examined several replacement solutions, including a like-for-like (single-ply) system, a conventional 2-ply SBS system, and the potential of converting to an inverted roofing system, which could offer the longest service life. The benefits and risks of each option were also reviewed, ensuring the client could make an informed decision on the best course of action.