The outstanding feature of the Minneapolis BlowerDoor measuring system is its extremely large measuring range of 19 m3/h to 7,200 m3/h. There are no limits to its use for air tightness measurements in passive houses, in newly constructed single-family homes and in existing buildings. If you want to measure larger buildings, you simply combine several BlowerDoor devices (BlowerDoor MultipleFan).

The BlowerDoor measuring system >Standard< consists of the powerful fan with reduction rings A-E, the durable BlowerDoor installation frame with the corresponding nylon panels, the pressure gauge DG-700 with the Cruise Control feature and the software TECTITE Express. There is a 4-year guarantee period on this package (subject to regular factory calibration of your digital pressure gauge).

All components are conveniently packaged and in total weigh approx. 30kg. They can easily be transported by any car. The installation takes about 15 minutes and is clearly documented in the illustrated, detailed manual as well as on the BlowerDoor Film CD. It is also possible to get training sessions.

The air tightness of the building envelope is an important prerequisite for realizing modern energy concepts in new buildings, as much as for construction projects on existing buildings. It is also an essential aspect of quality assurance.

Leaks in the building envelope increase ventilation heat losses. If ventilation equipment is installed in a building, an airtight building envelope is necessary to ensure flawless functioning of the installations, as uncontrolled air flow in the building prevents the optimal use of heat recovery systems and interferes with fresh and exhaust air supply. Preventing drafts significantly increases the indoor comfort level. Structural damage caused by convective moisture transport into the building construction can be avoided. When rehabilitating existing buildings, an air barrier can be implemented to achieve current low-energy or even passive-house standards.

• junctions and joint butts of building components
• pipe and cable penetrations through the air barrier
• floor junctions at doors and windows at floor level in converted attics
• connections of different building materials (e. g. massive/light construction)
• building extensions and bay windows, window jambs and external door jambs
• skylights and dormers as well as floor hatches

>BlowerDoor Info<