Aeroseal Duct Sealing System


    Aeroseal, combines duct testing and sealing into one step. It is a one-of-a-kind process that seals any type of ductwork from the inside-out. Since Aeroseal works from the inside, we are able to seal virtually every leak in the system. With new energy codes requiring duct testing, this process can help HVAC installers pass the duct leakage test the first time and with better end results. Aeroseal tests initial leakage, seals the ducts from the inside-outand then tests final leakage to document the total system duct leakage and improvement. Typically we can seal a system to less than 10-15 cfm total leakage, which exceeds any current energy codes or standards. This replaces the need for using tape or mastic on ductwork and does a more comprehensive job at sealing all air leaks, regardless of where they might be hidden, while also documenting the leakage levels.


Aeroseal is also useful in existing homes where ductwork often leaks 20-40% of the fan flow output. With Aeroseal, we can typically reduce leakage to about 1% in one day or less. The benefits are multi-faceted and felt immediately. From day 1 customers will experience more airflow, better circulation and energy savings with tightly sealed ductwork. HVAC installers and service providers have found that offering new home performance services is a great way to reconnect with old customers or simply keep them informed about new technology in the industry.


Aeroseal Background:

Aeroseal was developed in the 90's by the Indoor Environment Program at Lawrence Berkeley National Laboratory. The research was funded by US Environmental protection agency, US dept. of Energy, Electric Power Research Institute and California Institute of Energy and Environment. Their main objective was to create a solution to leaky duct systems, which cost Americans around $5 billion dollars annually. The average duct system leaks 20-40% before Aeroseal and roughly 1% after Aeroseal. Furthermore, aerosolized duct sealants have been named a top ten new or underutilized technology by the DOE's Federal Energy Management Program.

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