Ventilation Maximum, founded in 1984, is a Quebec-based company specializing in the manufacture of pitched roof ventilators and ventilation dampers. The company was established by Jean-Rock Ramsay, a roofer who, in 1983, noticed the ineffectiveness of traditional ventilators in Quebec’s harsh winter conditions. They collaborated with an engineer and developed the VMAX-301 prototype, designed to endure snow, ice, hail, and high winds.

Ventilation Maximum stands out as a company committed to excellence, community, professionalism, integrity, and transparency. The company aims to promote the importance of active ventilation in the roofing industry by educating customers and addressing their specific needs. It is dedicated to developing innovative products tailored to demanding climates.

The company prides itself on continuous improvement, impeccable customer service, mastery of advanced techniques, and the use of locally sourced materials. It fosters a family-oriented culture, emphasizing training and collective growth. Ventilation Maximum maintains high-quality standards and commits to transparency through rigorous testing and verifiable data.

Today, Ventilation Maximum remains a family-owned business dedicated to roofing excellence. Following in the footsteps of its founder, Jean-Rock Ramsay, it continues to innovate in response to climate change challenges, providing efficient ventilation solutions for roofs. Significant investments and a plant expansion planned for 2024 mark a move toward automation and artificial intelligence.

Ventilation Maximum has been a Les Produits du Québec program member since February 2024, when some of its products earned the Product of Québec certification mark. Certified products include pitched roof ventilators, ventilation dampers, and exhaust dampers.

To learn more about Ventilation Maximum and its verified products, visit ventilation-maximum.com.