Outer Plastic Wrap Of Attic Air Ducts

You ve looked at few websites and you ve noticed quite a few feature this kind of statement.

Outer plastic wrap of attic air ducts.

If your ductwork is over 15 years old you probably should replace it. If the ducts must be located within a vented attic one option for protecting the ducts and helping to minimize heat transfer between ducts and the unconditioned attic is to lay the ducts on the attic floor and cover them with the same blown insulation that is used to cover the attic floor. Cut pieces of foil insulation tape seal up the. The two most common ways to insulate ductwork are.

The ductwork should be installed so that it is in direct contact with the ceiling and or truss lower cords. Ed mack of air duct professionals in lake elsinore california creates estimates based on the number of ducts to be installed. Wrapping the duct in a foil faced blanket. Some of the foil may be missing but the foil tape will cover the defect.

Ductwork has a maximum lifespan of 20 25 years. Often pricing per duct run ranges between 150 and 250 from air duct professionals mack explains that a typical single family home may need 6 10 duct runs. Pull the insulation and outer liner of the flex duct up over the collar. If you need help deciding which type of insulation you need set up an energy consultation.

Duct wrap insulation reduces heat loss or gain through duct walls conserving energy. The shiny vapor barrier will protect the ductwork from sweating as long as it s exposed to the surrounding air. Let s say you re thinking about installing a new furnace air conditioning system. In hot attic spaces or where exposed to uv light the plastic of this flexible air conditioning duct material disintegrates leaving its fiberglass insulation exposed to also disintegrate leak or possibly blow into the building living space.

No air should be able to penetrate the ductwork and the joints are a natural weak point. Replacement of the duct work is required a significant expense. Applying spray foam insulation to the outside of the duct. Hvac ductwork is typically visible in your attic especially flexible ductwork.

Pull the outer liner of the duct up to the outer liner of the trunk line or fitting. The reason ductwork is exposed is because. Reposition the foil outer insulation to cover the hole as much as possible. Also make sure to use hvac tape and seal all of the joints between duct segments.

Today s flexible ductwork is covered with a shiny metallic cover this is its vapor barrier. The insulation you use to wrap your ducts should leave no gaps and be at least two inches thick to work effectively at reducing or eliminating condensation on ductwork.