A unit exposed to the elements requiring complete attention
Our AirGreen team recently completed a deep cleaning of a heat pump installed on a flat roof in Montreal North . This type of installation, common in Montreal's residential and commercial buildings, is directly exposed to the elements : rain, wind, dust, urban pollution, and plant debris. Over time, these elements accumulate and reduce the system's efficiency, increasing energy consumption and the risk of overheating.
Initial diagnosis: a cluttered and inefficient device
Several problems were evident from our visual inspection:
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Heat exchanger fins clogged with dust, soot and oxidation deposits.
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Presence of mosses and vegetation at the base of the foundation, retaining moisture.
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Deteriorated insulated piping , exposed to sun and rainwater.
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Reduced airflow and increased operating noise are typical symptoms of a blocked fan.
The customer had noticed that the heat pump was having trouble maintaining a stable temperature, especially during hot days, and that electricity consumption had increased significantly.
AirGreen Complete Cleaning Process
Our certified technicians performed a professional, multi-stage cleaning using environmentally friendly products and specialized tools designed for roof environments.
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Power supply cut off and work area secured on the roof.
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Structural inspection of the support and electrical connections, often weakened by humidity.
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Application of a biodegradable degreaser to dissolve the grease and mineral deposits accumulated on the fins.
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Cleans with fresh water under controlled pressure , removing dust, insects and oxidation without damaging the fins.
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Manual brushing of sensitive areas using anti-static nylon brushes.
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Cleaning and disinfecting the condensation tray , often forgotten but crucial to prevent bacterial growth and bad odors.
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Replacing deteriorated insulation on refrigeration pipes to ensure optimal thermal performance.
Results and observed benefits
Upon restarting the system, the positive effects were immediate:
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Air circulation restored , improving the efficiency of heat exchange.
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Reduction of noise and mechanical stress on the fan.
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Energy consumption is estimated to decrease by approximately 15%.
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Complete elimination of foams and residues , ensuring better durability of the device.
The customer immediately noticed an improvement in interior comfort and smoother operation, even in hot weather.
AirGreen's expertise for flat roofs in Montreal
HVAC units installed on flat roofs require rigorous maintenance. Direct exposure to sun, rain, and pollution accelerates component degradation. At AirGreen , we understand these unique challenges and adapt our cleaning methods to ensure:
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Maximum safety on construction sites at height .
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Environmentally friendly cleaning products with no impact on roof membranes.
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Maintenance in accordance with the manufacturers' recommendations .
Thanks to our expertise, building owners and managers in Montreal, Laval, Longueuil, the North Shore and the South Shore can extend the lifespan of their equipment and ensure consistent comfort all year round.