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Capital Plaza Hotel, Convention Center, Kentucky Saves Thousands in Energy, Maintenance Costs

To say that the owners of the Capital Plaza Hotel in Kentucky were energy conservation skeptics would be an understatement. “If it worked, everyone would be doing it” was a familiar sentiment. Today, they are true believers. With the help of Aeroseal, the 10-story hotel and convention center, in the heart of the state’s capitol, has just become the first Energy Star certified hotel in the state. Owners estimate that duct sealing and other “low hanging” energy saving measures has reduced operating costs by $110,000 a year. Sealing leaks also fixed bathroom exhaust issues, eliminating chronic mold and mildew problems. Cold spots have been replaced with even temperatures throughout the facilities.

In Brief

  • Building: Capital Plaza Hotel, Frankfort, Kentucky
  • Aeroseal Contractors: Service Tech, Vandalia, OH
  • Energy Consultants: Interdependent Energies
  • Building Specs: 10-story; 160,000 ft2; hotel/convention center; First opened in 1960
  • Goal: Reduce duct leaks; save energy; improve IAQ
  • Before Aeroseal: Total system leakage: 6,270 CFM
  • After Aeroseal: Total system leakage: 771 CFM
  • Results: a nearly 90% reduction in leakage
Capital Plaza Hotel, Frankfort, Kentucky

Capital Plaza Hotel in Frankfort, Kentucky had its ductwork sealed with Aeroseal.

The sealing process took 5 days to complete. Payback estimated in less than two years. Ongoing savings estimated for duct sealing alone is approximately $24,000/year. Additional savings is expected through reduced maintenance costs and equipment repair. The once skeptic owners are now enthusiastic supporters of aerosol duct sealing and other energy conservation measures for significantly reducing overall operational costs.


“During the demo we got to see how the Aeroseal technology actually worked. The computer-generated graph follows the sealing process in real time, and we watched as the leaks were sealed and the CFM of lost air went down to practically nothing. There was no other way, short of tearing down and rebuilding the hotel, that we could have gotten anything near these results.”

Chad Braden
Director of Facilities
Capital Plaza

“I was getting quotes for an overhaul of the HVAC system that ran $1 million to $2 million dollars – it would have taken decades to pay back. We opted instead to seal the ductwork with Aeroseal. That dramatically improved the efficiency of the current system, allowed us to reduce energy use related to heating and the use of exhaust fans and it solved a lot of issues related to poor ventilation. We expect pay back on the duct sealing to take less than two years. Then it’s simply ongoing savings right off the top of the hotel’s monthly operating expenses.”

Jason Delambre
Energy Consultant
Interdependent Energies, LLC.

About Aeroseal Technology

Before/After Aeroseal
  • Developed at Lawrence Berkeley National Laboratory in 1994.
  • Research for aeroseal technology was partially funded by the U.S. Department of Energy.
  • Aeroseal is the only duct sealant technology that is applied from the inside of the duct system. It is delivered as a non-toxic aerosol mist that seeks out and plugs leaks.
  • Aeroseal has proven to be 95% effective at sealing air duct leaks.

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