Attic Insulation - Butterfly Damper Installation

Backdraft dampers, also known as butterfly dampers, are the unsung heroes of energy-saving. Essentially acting as a one-way air valve, they're used in several applications to prevent unconditioned outside air from flowing through vents into your home. For example, a clothes dryer exhaust duct is a common entry point for warm moist air in the summer and cold air in winter. By installing a backdraft damper, you ensure that air flow only goes to the outside. Similarly, a backdraft damper may be used to keep unconditioned air from entering your kitchen or bathroom via a range hood and bath vent ducting.