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Retirement home "Franziskus"

Retirement home "Franziskus"

The retirement home "Franziskus" was completely renovated. Some of the old ducts run and air handling unites were reintegrated into the new structure because of cost concerns. After the renovation, one of the reused air handling units, together with a reused kitchen exhaust air duct, were causing massive odor pollution in the whole building. In a first step, the executing company tried to manually seal the existing leakage. Unluckily, this action was not successful. Most of the leaks were inaccessible or couldn't be found at all. At that point, Aeroseal Austria was contacted to seal the affected duct runs.


Building: Retirement home "Franziskus"
City: Linz / Austria
Date: 15 July 2015
AEROSEAL Partner: Aeroseal Austria
Executing company: Ing. August Lengauer
Target: Eliminate odor pollution within the building
Preseal leakage: 448 m3/h at 150 Pa
Postseal leakage: 48 m3/h at 150 Pa
Reduction of leakage: 89,3%


After separating the air handling unit, the exhaust air from the kitchen was sealed from an air tightness class A down to an air tightness class C. The exhaust air duct had a total surface of 288 m2, but coukd be sealed in just one go. Aeroseal made it possible to resolve all odor pollution related problems in less than a day.