Blog

A roof exhaust fan that performs well in mild weather can become a major maintenance and airflow liability under wind-driven rain, snow load, salt air, or sustained subzero temperatures. When evaluating Roof-Mount Hooded Fans vs Upblast Exhaust Fans for Extreme Climates, the right choice is not simply about CFM. It depends on the contaminant being exhausted, duct static pressure, discharge velocity, roof exposure, backdraft control, and how the fan will be serviced in severe weather. Roof-Mount …