Cottonwood Season and your HVAC system

Cottonwood on a roof

  Cottonwood Threatens HVAC Systems and Comfort As warmer weather arrives, so does one of the most overlooked threats to your HVAC equipment: cottonwood season, typically late May through early July Each spring and early summer, cottonwood trees release seeds covered in fluffy, fibrous material. It looks harmless floating through the air—but when it reaches your rooftop […]