Whwere To Insulate Ductwork In Attic

I called out the original hvac company and they took a look and said they saw no water.

Whwere to insulate ductwork in attic. It was new when the ac was put in 7 years ago. The effective r value of a buried duct installation depends on the size of the ducts the r value of the duct insulation and the depth of the loose fill insulation. Flexible ductwork comes with different insulation r values. Apply a long strip of foil tape along the seam in the insulation.

Inspect the attic insulation while in the attic inspect the insulation as well as the ducts. Wrap the insulation around the duct and then pinch the seam closed. Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well. The department of energy claims that the average us home loses hundreds of dollars a year in heating and cooling costs.

Once the duct work is sealed it s time to decide on insulation. Other times insulation may be on the outside. Secure the insulation with short strips of foil tape. Table 1 shows effective r values for 8 inch round ducts at three attic insulation levels and three duct insulation levels r 4 2 r 6 and r 8.

Ensuring your attic is properly insulated is essential to this endeavor. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. If the insulation is below the tops of the rafters it s also time to insulate. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water.

Before insulating seal any air leaks and make roof and other necessary repairs. The attic ductwork is flex duct work. Loose fill or batt the common term for blanket insulation. Sometimes the insulation is inside the ductwork.

Both can be added to uninsulated attics or layered over existing material. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Because the moving air is in the ductwork for only a short period of time it does not need the insulation r value the attic floor requires. Close to 25 of the energy you use to heat and cool your home disappears through leaky ductwork.

Proper duct insulation is a major key to ensuring your home s energy efficiency. Chances are in an older home the insulation may be lacking. Repeat to insulate the remaining ducts. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value.

How to insulate your attic duct system step by step with video instructions as winter nears many will begin to activate their home heating system to keep the house warm in the blustery and frigid temperatures that accompany the change in seasons. For diy attic insulation you ve got two choices.