What is Ductwork Insulation?
Ductwork is the part of the HVAC system where the cool & hot air flow through to make your home or job more comfortable during unpleasant weather in your region.
Any heating or cooling air ducts located in unconditioned areas should be insulated.
Insulating your home ductwork can save you money on your energy bill and make your home even more comfortable.
Different Types of Insulation
The predominant insulation material for ducts is fiberglass. It can be applied in either a flexible or rigid form and comes in a variety of densities and thicknesses.
The flexible blanket insulation is available in rolls for convenience in shipping and ease of application to round or rectangular ducting. Flexible insulation easily conforms to irregular surfaces.
Rigid insulation comes in pre-formed boards which are bonded with a thermosetting resin. All duct insulation should have a foil or vinyl facing on the exterior side which serves as a vapor retarder.
This prevents moisture from being absorbed into the fiberglass and thus maintains insulation ability.
Why Can ductwork Insulation be very important?
All duct work in attics, basements and crawlspaces should be insulated.
The outside air ducts should be insulated up to the outside air damper. The flue pipe should be left bare in the furnace room so that this heat can contribute to heating combustion air.
Insulation can be purchased from a hardware store, or a heating or insulating contractor can install it for you.
This is very important so that debri, bugs, spiders, rodents and other weird things do climb or get stuck in your home ductwork. The repairs can be very costly, so make sure your ductwork is insulated.