Nursing home

Due to poorly executed installation work, the required airtightness class could not be achieved in a newly built nursing home in London, so that subsequent sealing was necessary.

PROJECT

Building: Hospital AZ Groeninge
City: London, Great Britain
Date: 2017
AEROSEAL Partner: Hasman Ltd.
Executing company: Hasman Ltd.
Preseal leakage: 119,0 l/s
Postseal leakage: 7,4 l/s
Reduction of leakage: 93,80%

PROJECT COURSE

During the handover of a newly built fourstorey nursing home in London, pressure tests in three of four air duct systems revealed such significant leaks that the required air tightness class A was not achieved. In addition, due to the leaks, the required air volumes in the rooms, corridors and hallways were not achieved and the sufficient removal of exhaust air from bathroom areas was also not guaranteed. Even an increase in fan speed was not sufficient to achieve the design values. By using MEZ-AEROSEAL, the leakages of the supply and exhaust air system ducts installed behind solid ceilings could be reduced by an average of 93.8 %. Since the air volume at the outlet grilles after sealing was higher than the design values, the fan speeds could be reduced again and thus energy could be saved. All in all, the use of MEZ-AEROSEAL allowed to achieve tightness class B and in some cases even C, as well as to avoid replacement of the leaking piping and thus further delays in the construction process.

PDF-DOWNLOAD