For flat roofs in British Columbia, maintenance focuses on addressing unique challenges like water ponding and membrane integrity due to the region’s heavy rainfall and humidity.

Key maintenance practices for flat roofs include:

• Bi-annual membrane inspections: It is recommended to check low-slope membranes (such as TPO or torch-on systems) twice a year to identify issues like blistering from thermal fluctuations or adhesive failures.
• Managing water ponding: Because flat roofs often face drainage issues due to poor slope design, regular checks are necessary to ensure water does not pool, which can lead to leaks and structural compromise.
• Seam and seal checks: Humidity and salt air can accelerate the failure of adhesives and seams. Professionals inspect these areas to prevent moisture infiltration.
• Professional patching: Maintenance often involves patching low-slope areas with compatible adhesives to address damage caused by heavy rains.
• Specialized tools: Infrared thermography is sometimes used in commercial flat roof setups to detect hidden moisture that isn’t visible to the naked eye.

Because of the risks associated with falls and the technical nature of membrane repairs, it is strongly advised to use professional services for flat roof maintenance rather than DIY approaches.