Tuesday, January 22, 2013

AeroSeal A Project Saver

The VA medical center in Indianapolis is a source of pride for the Veterans Administration. From its state-of-the-art medical technology to its team of dedicated medical professionals, the center is renowned for the quality of service and care it provides to Indiana veterans. So it was with particular pride and excitement that the VA Medical Center opened its doors this past summer to its new Veterans House – a place where veterans and their families could stay while receiving treatment at the facilities across the street.

It was with an equal amount of concern that administrators reacted when they learned that the air handling system in the new building wasn’t performing up to code.

Like many newly constructed buildings, the ventilation system at the Veterans House was equipped with an Energy Recovery Ventilation unit (ERV) designed to help ventilate the structure and conserve energy. The ductwork for both the intake and exhaust of the air handling system are connected to the ERV, drawing fresh air into the 28 guest rooms and common areas and removing stale air from the bathrooms and shared kitchen.

Strict government standards require that the leakage rate of the building’s air handling system measures 10 percent or less.  Unfortunately, performance tests taken soon after construction was completed showed leakage rates that exceeded 45% in some areas.
“I was familiar with various types of sealants used for other construction applications and thought there just might be an alternative that could save the day for us in this case,” said David Petty, project contractor, RL Turner Corp. “So I did some Internet research and learned about Aeroseal.”

The Reupert crew accessed the duct system via a temporary hole cut into a part of the ductwork located in the attic of the building. Grills throughout the facility were temporarily removed and the exhaust fan was taken out. Once the access points within the individual rooms were temporarily blocked, the aeroseal sealant was blown into the inside of the ductwork where it located and accumulated around the multitude of individual leaks.  By adhering to one another around the leakage, the individual microscopic particles of sealant formed a bond that permanently sealed the leaks.

The Reupert team worked over the three-day Memorial Day weekend and the building was open for veterans and their families the following day.

Read the entirety of the post here.