Start by sealing air leaks with putty or metal tape and insulate any ducts you can access (such as those in attics, mezzanines, unfinished basements, and garages). Never use adhesive tape, as it is not durable. Apply a layer of silicone caulk along both edges of the duct joint. Seal round ducts with aluminum foil tape, not adhesive tape.
Despite its name, it's not approved for duct sealing and doesn't hold up well in the long term. The more extreme the climate (cold or hot), the greater the advantages of sealing ducts. A much better long-term solution would be to ask a professional to apply liquid rubber sealant through the system. Aeroseal is effective because it properly seals the ducts to prevent air or dust from outside entering the pipe and spreading throughout the pipe.
house. Most homeowners don't think about sealing their home's air ducts, but the process is crucial to maintaining the energy efficiency of their home. Ideally, all air flowing through the air treatment device reaches the terminations of the supply grid without air leaks, and all air entering through the return duct grilles returns to the air controller without leaking. Before and after sealing, leak tests can be performed in the ducts to verify the correct implementation and quantify the improvement.
It is recommended to seal them manually with fiberglass mesh tape and putty, and the duct material must have an internal air barrier. In addition, if leaking ducts are located in dusty or dirty spaces, those contaminants can be absorbed by the system and distributed throughout the house. All joints in air ducts, air treatment systems and filter boxes are virtually hermetic using tapes, putties, liquid sealants, gaskets or other approved sealing systems. Either way, having your ducts properly sealed will help you balance the air temperature in your home and improve air quality.
If someone in your family has allergies or asthma, sealing the duct system can help reduce their symptoms and improve their health. Buy UL181 high-temperature aluminum foil tape in the duct section of a home center and use it to seal the joints of round ducts. The ducts are the ones that distribute heat and air conditioning to the different rooms of the house and, often, these ducts have gaps in their connections, allowing the air conditioner to escape before reaching the intended room. To prevent these situations from happening, make sure the ducts are sealed, either the old-fashioned way (applying some adhesive tape, putty and insulation) or by hiring a professional to blow liquid rubber sealant through the system. In those cases, the evaluator will visually verify that all joints and connections are sealed with putty or metal tape and that all duct covers are sealed to the floor, wall, or ceiling with putty, foam, or adhesive tape.
Duct leaks allow contaminated air to enter the system, increasing contaminants inside the home, such as dust, dirt and other particles that decrease air quality.
Leave Reply