When summer heat reaches its peak in Laval, every extra degree becomes a real challenge for both residents and businesses. With increasingly frequent heatwaves, it's crucial to adopt effective HVAC ventilation strategies to maintain indoor comfort, protect your health, and ensure the proper functioning of electronic devices and infrastructure. At AirGreen, we put our expertise to work for Laval families and professionals, turning these extreme heat periods into bearable—even pleasant—moments thanks to well-designed, high-performance ventilation solutions.
Why ventilation is essential during a heatwave
Having a wall-mounted or central air conditioner isn’t enough to guarantee thermal comfort when temperatures hit or exceed 35°C. Effective ventilation ensures continuous air renewal, reduces indoor humidity, prevents heat build-up, and protects against health risks like heatstroke, hyperthermia, or respiratory issues.
In Laval, residential and commercial buildings face specific challenges related to ambient humidity and intense temperature swings. A well-thought-out HVAC ventilation strategy must be tailored to local realities, building dimensions, and the specific needs of its occupants.
Tip 1: Prioritize controlled mechanical ventilation (CMV)
Installing a CMV (Controlled Mechanical Ventilation) system removes hot, stale, humid air from key areas (bathroom, kitchen, basement) and brings in fresh, filtered air. At AirGreen, we especially recommend dual-flow systems with heat exchangers, which offer excellent energy efficiency while keeping indoor temperatures stable.
Real example: In a recent installation in Vimont (Laval), we equipped a century-old home with a Venmar EVO5 dual-flow CMV system with heat recovery. The result: over 40% reduction in perceived humidity during heatwaves and a noticeable improvement in indoor air quality.
Tip 2: Complement ventilation with localized exhaust fans
In areas prone to humidity and heat build-up (attic, garage, laundry room), we recommend installing localized exhaust fans, either programmable or with humidity sensors. These standalone units provide targeted but effective extraction, particularly useful during Laval’s extreme heat.
Pro tip: Consider adding a temperature-sensitive exhaust fan in your attic—a space often overlooked but which acts as a heat reservoir that radiates into your entire home.
Tip 3: Optimize indoor air circulation
Good natural or assisted ventilation also relies on smart air circulation. We encourage the use of ceiling fans, set to summer mode to push warm air upwards, and strategically placed transfer grilles between rooms to balance temperatures.
At AirGreen, we often conduct a complete air circulation assessment, using thermal cameras and anemometers, to propose simple adjustments that boost the overall efficiency of the HVAC system.
Tip 4: Regularly maintain your ventilation systems
A poorly maintained system loses efficiency and can actually worsen heat discomfort. At AirGreen, we provide a comprehensive HVAC maintenance service, including:
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Cleaning ducts and filters
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Checking airflow levels
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Inspecting the heat exchanger
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Calibrating motors and fans
Client testimonial in Laval: “Thanks to AirGreen’s annual maintenance, our ventilation system runs flawlessly even on the hottest days. The difference is real.” – Ms. Caron, Chomedey.
Tip 5: Invest in high-performance HVAC equipment
The quality of the equipment plays a crucial role during a heatwave. We recommend trusted brands like Venmar, Fantech, Lifebreath, or Zephyr, combined with powerful wall-mounted or central heat pump systems. These units provide constant, controlled ventilation, even in densely built urban areas like Laval.
Concrete example: Installation of a Venmar AVS N Series system paired with a central Fujitsu 18,000 BTU heat pump in a multi-generational home in Saint-François. The combined effect kept indoor temperatures at 23°C during a week of 38°C heat.
Tip 6: Adjust your ventilation and air conditioning schedules
Smart programming of HVAC systems can maximize energy efficiency. In Laval, where electricity usage can skyrocket during heatwaves, we’re seeing more and more installations of smart thermostats connected to air exchange ventilators. This allows you to:
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Cool during the coolest times (night/morning)
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Limit intensive use during the afternoon
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Maintain healthy air without overconsuming energy
AirGreen: Your ventilation partner in Laval, all year round
Thanks to our on-the-ground expertise, we’ve helped dozens of Laval families optimize their HVAC systems. Our solutions go beyond installation: we offer personalized consulting services, regular maintenance, and emergency interventions in case of breakdowns or extreme heat events.
Our teams, based in Laval, are trained to handle the specific thermal challenges of every neighborhood: Duvernay, Fabreville, Sainte-Rose, Pont-Viau, or Saint-Vincent-de-Paul.
In conclusion: investing in quality ventilation means investing in your well-being
Heatwaves are no longer isolated events—they're a recurring climate reality. Proper ventilation of your living or working space is a matter of health, comfort, and energy savings. At AirGreen, we believe every household deserves a tailored, sustainable, high-performing solution, no matter the budget or building layout.
Are you in Laval and looking to optimize your ventilation for the summer? Call on our team of experts. A free evaluation might make all the difference when the next heatwave hits.