Duct Line Sealing

Commercial Air Duct Pipe
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Over time, like most things, air and heating ducts can start to deteriorate and degrade. When this happens, they begin to leak. Air and heating leaks are unpleasant and can cause problems for both your home and your bank account. To go along with this, when ducts are first installed, they also need to be sealed. This process ensures that air and heat will make it all the way through your duct system and into the places where you actually want it to go.
 
Mastic

Mastic is the preferred choice of sealant by most duct specialists. Mastic is a gooey, liquid-based sealant that is placed around metal duct seams. After the ducts are secured with screws, mastic is placed around them to lock in air transfer. Mastic is non-hardening, which prevents cracks and leaking. This process is messy and should be done by a certified professional, like us. Mastic is usually applied with a paintbrush but can be hard to get off unwanted surfaces. Mastic can also help seal larger breaks if they are first patched with fiberglass patches.
 
Duct Tape

Duct tape is the traditional sealant option for ductwork. This is the same tape that most people have in their homes already. This tape, known as cloth-backed rubber adhesive tape, does an okay job at sealing but doesn’t last nearly as long as mastic does. Duct tape is rarely used anymore for actual duct systems, but when it is used, it does have advantages over mastic. Duct Tape is not nearly as messy as mastic is, leading to cleaner jobs and it can be used to secure clamped flex joints, which mastic is not the best at sealing. We typically seal with mastic.
 
Why Seal

The need for sealing of ducts is a necessity for all ducting systems. If air or heating ducts are not properly sealed, several things can happen. One of those consequences is energy waste. Energy waste means that, when you run your air or heat, you are needing to use more energy to push that air into your desired location, because some of it is escaping in places where you don’t want it to escape. This can lead to higher electricity and gas bills. Improper sealing can also lead to pressure imbalances, which can result in uncomfortable living situations.
 
Keeping Ducts Functioning

Duct line sealing is important to keep your air duct system working as properly as it should. When your ducts begin to leak, this can cause energy inefficiency, which can lead to higher energy costs and higher electricity and gas bills. Properly sealing vents can be hard work and that’s why it should be done by a professional. Mastic, which is the preferred choice of sealant, is messy and a substance which you most certainly don’t want on your hands or clothes. On the other hand, duct tape can be used in certain situations but knowing what situations, is best left to professionals.