Ductwork, no matter where it runs, has all the cold and warm air created by your ventilation, heating and air conditioning program compelled through it through your house for distribution. Un-insulated or when there are leaks or badly insulated parts of of duct work, this wastes cash and power. This can be especially true in a crawl space which is subject to exterior extremes in temperature. Insulating the ducts in your crawl space can have an instantaneous effect in your energy bills. This kind of enhancement can also increase the value of your house for re-sale.
Measure the circumference of the ducts working during your crawlspace. Return ducts and your house supply might or might not be the same dimensions and form. Each of the ducts should be insulated by measure for equally as you. Allowing air in ducts that are un-insulated to re-enter the HVAC program can trigger the program to work.
Cut the insulation together with the utility knife in sections 2″ bigger in relation to the circumference of the duct. On one of the ends that are cut, peel back the foil backing and stop the additional 2″ of fiber glass insulation materials.
Remove duct-hanger brackets utilizing the drill to wrap parts of of insulation. Wrap the insulation throughout the duct, enabling the 2 inch overlap to cover the gap between sheets. Seal the seam with foil duct-tape authorized for use on duct work (do not use regular plastic/cloth duct-tape).
Wrap the wire across the insulation to help maintain it in place. Use two wires for every section of insulation. Cut the wire using the cutters enabling several inches of slack. Twist the ends of the wire with the pliers.
Replace the duct- before eliminating the next area, hanger brackets as you-go. Repeat wiring, taping and the wrapping set up before you’ve got insulated each of the ductwork.