Forced Air Furnace Duct Insulation

Ducts are infested with vermin e g.

Forced air furnace duct insulation.

No air should be able to penetrate the ductwork and the joints are a natural weak point. If the conditions causing the mold growth in the first place are not corrected mold growth will recur. Moisture in the air wrap your ductwork. Insulating hvac ductwork when insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value.

R 6 duct insulation 6 305 btu hour 0 53 ton r 4 2 duct insulation 7 948 btu hour 0 66 ton the numbers are even higher for the additional heating load. Covers up to 60 sq. Hvac air ducts located inside concrete slab floors invite a surprisingly broad range of building problems that fall into two broad categories. Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place.

Check the speed of the blower motor on the furnace. The duct insulation r values i mentioned above are what s on the product label. Secure the fiberglass insulation in place around the boot with. Find hvac duct fittings at lowe s today.

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. Wrap fiberglass insulation around the metal boot that connects the air duct to the rectangular supply air register serving the room. Press a continuous strip of foil tape to all longitudinal seams along straight runs of duct. Hvac ductwork in floor slabs.

Use this master flow 60 sq. The second problem that needs to be addressed it the natural moisture in the air. Also make sure to use hvac tape and seal all of the joints between duct segments. Use a paintbrush to apply duct mastic to the joints where an elbow.

Fiberglass duct wrap insulation to reduce condensation in absorb noise from and improve the air temperature efficiency of your duct system. This article describes heating and air conditioning ducts that have been placed in or beneath concrete floor slabs. Make sure the foil surface of the insulation is free of dust before applying the tape. Wraps around new or existing ductwork.

Of duct surface measures 2 ft. R 6 value meets or exceeds most energy codes and helps reduce energy costs. If necessary switch the wires to reduce the blower to its lowest. If you have insulated air ducts and the insulation gets wet or moldy it cannot be effectively cleaned and should be removed and replaced.

How often do you think you get the full labeled r value.