The most important tool in order to quantify infiltrations in residential buildings is the Minneapolis Blower Door system, containing a fan encassed in a framework assembled onto the doorframe of the entry door, a datalogger, and some pressure
probs. A fabric piece is attached to the framework to ensure the door sealing.
Its Datalogger software processes the data taking external (wind) and internal conditions (volume, sealing of openings) into account, and gives as a result the necessary infiltration indexes.
While the Blower Door system performs the test, the technicians carry out an additional data collection test with a thermographic camera to identify specific faults and other phenomena in the building. In this way it is possible to visualize
the extent of these defects and detect their position.
A computer application has been developed capable of capturing the data of the building envelope as well as the test data and it organizes them and generates all the final documentation of the test and the project certificates.
