The blower door test Method A is applies on the building under “conditions of use”, i.e. when the work has been completed. The blower door test method A aims at simulating the conditions of use of the building. To that end, we take the following steps:
- Close all external fixtures (that must be installed, unlike what happens with the Blower Door Test Method B where all the openings are sealed). Internal doors, on the other hand, need to remain completely open.
- Plug up all syphons and exhaust ducts, if still without their accessories.
- Leave the hood exhaust duct open (if a valve is installed, we keep it open).
- Leave the gas exhaust hole open.
- Check that the electric system be installed according to the design and finished as in the use conditions.
- Check that the eventual mechanical ventilation is turned off and sealed.
- Leave any fireplace flues open (we check that the unit is ash-free).
- Keep the eventual mail slot open.
These precautions allow us to carry out the Blower Door Test Method A under the heating or cooling system conditions of use and to evaluate its real usage.
During the Blower Door Test a thermographic inspection to detect air leakage and infiltrations.
If you are interested in a Blower Door Test Method A