As an expert in the HVAC industry, I have seen firsthand the importance of properly sealing air ducts. One of the most effective ways to do this is by using duct seal, also known as duct sealing putty. This versatile product is not only easy to handle and install, but it also has numerous benefits for both residential and commercial buildings. The primary purpose of duct seal is to seal holes and leaks in air ducts. This includes blocking dust, moisture, noise, and air movement that can escape through these openings.
Unlike other methods such as masking tape, duct sealing putty is specifically designed for this purpose and is more effective at sealing small cracks and gaps. One of the main advantages of using sealing putty for air ducts is that it is non-toxic. This makes it safe for use in areas with poor ventilation or limited access to safety equipment. As an expert, I always prioritize the safety of my clients and their buildings, which is why I highly recommend using non-toxic products like duct seal. Another benefit of using duct seal is that it does not require any special clean-up after application. Unlike other sealants that may leave a mess or require additional steps to remove, duct sealing putty can be easily applied and left to dry without any worries about clean-up afterwards. Some people may confuse duct seal with plumber's putty, but there are significant differences between the two.
The ingredients used to make them are different, as well as their melting points. Duct seal is specifically designed for use in air ducts, while plumber's putty is meant for plumbing purposes. If you are considering using duct seal for your air ducts, it is important to properly prepare the surface before application. This includes sealing any air leaks with a putty sealant or metal tape and insulating all accessible ducts, such as those in attics, mezzanines, unfinished basements, and garages. One of the most significant benefits of using duct seal is that it forms a permanent bond with the metal surface of the air duct. This means that once applied, it will effectively seal any leaks or holes for the long term, without the need for frequent reapplication. As an expert, I cannot stress enough the importance of a well-designed and properly sealed duct system.
Not only does it make your home or building more comfortable, but it also improves energy efficiency and safety. In fact, in a typical home, about 20 to 30 percent of the air passing through the duct system is lost due to leaks, holes, and poorly connected ducts.