Intake and exhaust vents are crucial components of a well-ventilated roof system, especially when applying an acrylic roof coating. Proper ventilation helps regulate temperature and moisture, which can extend the life of both the roof substrate and the coating itself. Intake vents are typically installed low on the roof or along the eaves, allowing fresh air to enter, while exhaust vents are placed higher up, such as near the ridge, to let hot, moist air escape. Sizing these vents depends on the overall roof area and the recommended ventilation rate, which is generally around 1 square foot of ventilation per 150 square feet of attic or roof space. If the ventilation is uneven or undersized, it can lead to trapped moisture, causing the coating to blister or peel prematurely. To evaluate if your vents are sufficient, you can start with a visual inspection: check for blocked, damaged, or missing vents, and feel for airflow during different times of the day. You can also observe your attic space for signs of moisture or temperature extremes.
While some simple inspections can be done safely by homeowners, such as clearing debris from vent openings or checking for obvious damage, adjusting or adding vents often requires professional knowledge to avoid voiding roof warranties or damaging the roof structure. A roofer can perform more accurate measurements and recommend proper vent placement based on the roof design and acrylic coating requirements. When you call a contractor, useful questions include: "How will you determine the correct size and location for the intake and exhaust vents to ensure balanced ventilation?" and "What methods do you use to ensure that the ventilation system won’t compromise the integrity or warranty of my acrylic roof coating?" These inquiries help make sure you get a tailored solution that protects your investment and maintains the roof’s long-term performance.