Intake and exhaust vents are essential for proper ventilation in standing seam metal roofs, helping to regulate temperature and moisture levels in your attic or roof space. Intake vents, usually located near the eaves or soffits, allow fresh air to enter, while exhaust vents near the ridge let hot, moist air escape. The general rule of thumb for sizing these vents is based on the square footage of your attic or the roof area being ventilated. A common guideline is to provide 1 square foot of ventilation for every 150 square feet of attic floor space, split evenly between intake and exhaust. However, the exact size and placement can vary depending on factors like roof pitch, insulation levels, and local climate. You can perform a simple visual check to ensure vents are not blocked by insulation or debris and confirm that air flows freely through the attic space. Look for any signs of moisture buildup, such as mold or discoloration, which may indicate inadequate ventilation.
If you’re unsure about vent sizing or placement, it’s wise to consult a roofing professional who understands the specific requirements of standing seam metal roofing systems. When calling a roofer, ask how they calculate vent size relative to your attic space and whether their recommended vents are compatible with the standing seam panels to avoid compromising the roof’s integrity or warranty. Additionally, inquire about how their ventilation plan prevents moisture buildup and extends the lifespan of both the roof and the underlying structure. These questions help ensure that your metal roof system functions efficiently and remains protected under manufacturer guidelines.