A flat roof installation perfectly suited to the urban environment
At AirGreen , we are regularly asked to work on projects in typical Montreal buildings with flat gravel roofs . This installation, carried out in the Villeray–Saint-Michel–Parc-Extension district, illustrates our ability to adapt each Sharp wall-mounted heat pump project to the specific constraints of urban buildings.
Choosing Sharp Equipment
The owner wanted an efficient and durable system to provide air conditioning and heating in his home. The equipment chosen was a Sharp wall-mounted heat pump , renowned for:
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Its Energy Star certified energy efficiency, ideal for grant programs in Quebec.
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Its capacity to operate in summer air conditioning and heating down to -27°C, providing four-season comfort.
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Its compact design makes it easy to integrate into urban housing.
Technical challenges encountered
Installation on a flat roof requires specific preparation to ensure stability, durability and safety :
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The external compressor was installed on a treated wooden structure with metal supports , ensuring good weight distribution and avoiding any direct contact with the gravel.
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The refrigerant pipes were protected by white capping, running along the roof before joining the downpipe towards the indoor unit.
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Wind exposure on the roof was anticipated through reinforced mounting and strategic orientation of the unit to avoid excessive stress on the fans.
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The condensate drains have been adapted to ensure optimal flow even during periods of heavy rain.
Key steps of installation
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Assessment and preparation : roof inspection, distance measurement and selection of the optimal location.
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Setting up the base : installing a treated wood platform and leveling the structure.
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Installation of the outdoor unit : secure the compressor, respect the required clearances.
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Refrigerant line routing : drawing and insulating the pipes up to the indoor wall unit.
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Electrical connection : dedicated line run to the home's electrical panel, with suitable circuit breaker.
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Commissioning : pressure tests, flow adjustment and full explanation to the customer.
Results for the client
The client now benefits from a four-season comfort solution perfectly suited to his Montreal apartment:
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Effective cooling in summer, even during heat waves.
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Economical heating in mid-season and winter, reducing dependence on traditional systems.
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An installation optimized for urban conditions, with a protected compressor and easy access for maintenance.
AirGreen: specialist in flat roof installations
This type of project demonstrates our expertise in HVAC installation in demanding urban contexts . Whether in Montreal, Laval, Longueuil, on the North Shore or the South Shore, we adapt each wall-mounted or central heat pump installation to the specific features of the building, whether it is a duplex, triplex, condo or rental building.
By choosing AirGreen, you opt for:
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An installation compliant with RBQ and CSA standards .
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An aesthetic and functional integration.
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Comprehensive support including access to government subsidies .