Coquitlam has seen significant strata development over the past three decades, particularly in the Westwood Plateau, Burke Mountain, and Town Centre areas. As these buildings age, strata councils are increasingly confronting the realities of parkade maintenance — including the need for waterproofing membrane replacement and concrete restoration work that can represent significant capital expenditures.
Why Coquitlam Stratas Face Parkade Waterproofing Challenges
Many Coquitlam strata buildings from the 1990s and early 2000s were built with parkade waterproofing systems that have a designed service life of 15–20 years. Those timelines have now elapsed for a large portion of the existing building stock. The result is a growing wave of strata corporations dealing with active water infiltration, concrete spalling, and structural corrosion that requires urgent attention.
Coquitlam’s hillside terrain adds complexity for above-grade parkade structures, as water runoff from surrounding landscaping concentrates against parkade walls and at slab edges. Proper slope-to-drain and perimeter drainage design are critical elements of any waterproofing restoration in these buildings.
Post-Tension Structures in Coquitlam Parkades
A significant proportion of Coquitlam’s mid-rise and highrise strata buildings were built using post-tension concrete — a structural system that uses high-strength cables tensioned within the slab to reduce concrete thickness and allow longer spans. Post-tension slabs are efficient and strong, but they require specialized care during any repair or waterproofing work.
Cutting or coring into a post-tension slab without first mapping cable locations can sever a tensioned cable, causing immediate and potentially catastrophic structural failure. Our team always performs a thorough structural investigation before beginning any work on post-tension structures. Learn more about our specialized post-tension cable repair services.
What to Expect From a Coquitlam Parkade Waterproofing Project
A typical parkade waterproofing project in Coquitlam follows a structured process: condition assessment, scope development, strata council approval, phased construction, and final inspection. The assessment phase identifies all areas of membrane failure, concrete damage, and drainage deficiencies. A written report is produced documenting findings and recommended scope — providing the documentation strata councils need for council meetings and depreciation report updates.
Construction is typically phased to allow partial parking access throughout the project. Our team works closely with strata property managers to coordinate parking logistics, communicate with residents, and minimize disruption. Visit our parkade resurfacing page for details on our process and the systems we use, and check our FAQ for answers to common strata questions.
Contact Miyagi Construction for a free site assessment at estimate@miyagiconstruction.com or call (778) 513-7471.
Additional Resources
For more information on concrete standards and construction safety in British Columbia, visit BC Housing and the WorkSafeBC for industry standards and guidelines.
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