Debunking Common Myths About Ventilation in the Roofing Industry

By Adam Cabrera. 

Ventilation in the roofing industry may seem simple, but there are many myths and misconceptions surrounding the subject.  

On a recent episode of Roofing Road Trips®, host Heidi Ellsworth sat down with Tony Vizzi, regional sales manager at Quarrix, to discuss the essentials of proper ventilation and clear up some of the misconceptions. 

One of the most pervasive myths is that more is better when it comes to ventilation. Tony refuted this, stating, "Based on my experience in according to both building science and codes, what's best is a balanced system built around the principles of convection." Adding excessive vents can actually disrupt the airflow, making the system less effective.  

Another myth debunked was the idea that ventilation only matters in hotter climates. "Ventilation matters in all climates," Tony stressed, emphasizing that a well-ventilated space can prevent issues like mold and mildew in humid regions as well as mitigate the impact of ice dams in colder areas. 

New revisions in building codes related to ventilation were also discussed, including the current International Residential Code requirement stating that for every 150 square feet of attic space, there should be one square foot of net free area for ventilation. Tony explained how contractors can conduct audits, "The professional roofing contractor can easily do an audit by understanding first that free area that's needed, that ratio." 

Perhaps one of the most crucial takeaways is the need for education, both among contractors and customers. Understanding the nuances of ventilation can be a differentiating factor in the sales process, enabling contractors to provide real value to homeowners. 

Read the transcript or Listen to the podcast to learn more about roof ventilation and what advice the experts at Quarrix have for their use and installation.