A flat roof installation perfectly mastered by AirGreen
At AirGreen , every wall-mounted heat pump installation project is executed with the same technical rigor and attention to detail. This time, our team went to the Saint-Laurent district of Montreal to install a Sharp ZU1 heat pump , a model known for its energy efficiency, performance in extreme cold, and quiet operation.
Installation context: a typical residential building in the Saint-Laurent sector
The project involved a flat-roofed apartment building , a type of building that is very common in this area of Montreal. The client was looking for a heating and cooling solution that was reliable, economical, and adapted to the constraints of a flat roof . The Sharp ZU1 was the ideal choice: compact, efficient, and equipped with R-32 refrigerant, environmentally friendly and compliant with the latest Canadian energy standards.
AirGreen expertise on a flat roof technical project
Our team installed the system on a metal support specially designed for flat roofs. To ensure stability and durability, the supports were fixed to treated wooden crossbars that evenly distribute the load across the gravel surface.
We then positioned the Sharp ZU1 condenser to ensure optimal airflow and easy access for future maintenance.
The refrigerant lines and electrical cables were carefully laid out and sheathed, following a perfectly straight route up to the technical column. A complete vacuum test was carried out to verify the tightness of the refrigeration circuit before start-up, thus ensuring optimal performance and a long service life of the equipment.
The features of the Sharp ZU1: efficiency and comfort in all seasons
The Sharp ZU1 is a high-efficiency wall-mounted heat pump . Designed for the Quebec climate, it offers:
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Stable performance down to -25°C , ensuring efficient heating even during periods of extreme cold in Montreal.
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A variable speed compressor that automatically adjusts power according to the actual needs of the room, thus reducing electricity consumption.
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Reduced noise level , both for the indoor unit and the outdoor condenser.
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An R-32 refrigerant , more environmentally friendly and more efficient than R-410A, contributing to a reduced carbon footprint.
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Eligibility for provincial subsidies thanks to its Energy Star certification and superior energy performance.
Safety, durability and performance: our three priorities
The flat roof environment imposes several technical constraints: direct exposure to sunlight, thermal variations, and limited access. This is why our RBQ and CCQ certified installers have applied the best fastening and insulation practices :
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Use a raised stand to prevent water and snow from accumulating around the unit.
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Vibration check and anti-vibration shimming .
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Installation of electrical wiring in a waterproof sheath suitable for outdoor conditions.
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Condensate management designed to avoid any risk of freezing in winter.
This rigor of execution guarantees not only the safety of the installation , but also constant performance throughout the year .
Why choose AirGreen for your HVAC installation in Montreal?
At AirGreen, we don't just install equipment: we support our customers every step of the way, from choosing the right device to long-term maintenance.
Our commitments:
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Personalized advice to help you select the heat pump best suited to your home and budget.
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Installations comply with RBQ , Hydro-Québec and City of Montreal standards.
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Fast and transparent after-sales service , with local technicians available throughout Greater Montreal , including Laval , Longueuil , the South Shore and the North Shore .
A result that lives up to expectations
The Saint-Laurent customer now benefits from optimal comfort, both winter and summer, and significantly reduced energy bills . The installation of the Sharp ZU1 was completed in one day, including calibration, performance testing and a complete system check.
Customer satisfaction is based as much on the quality of the product as on the quality of AirGreen execution , recognized throughout Montreal for its professionalism and reliability.
AirGreen — Your HVAC partner in Montreal, Laval, Longueuil, South Shore and North Shore.
We install, maintain and repair your Sharp, Midea, Gree, Fujitsu, Lennox, Bosch systems and more with the same expertise and passion for the job.