BlowerDoor test

Spain is not a country whre airthightness is considered in building process. We still think on our spacial climate conditions (Mediterranean wheather) and still unknown all about thighness, sealing, leakages consecuences, etc. And this is also for residential or industrial buildings. This Spanish BlowerDoor Test Record will bring us the opportunity...

In 2008, our trade association, “klimaskaerm” (comparable with FLIB e.V.), started a voluntary certification system in collaboration with Danish Standard. The system costs about 4500 euros per year, and was never very successful; only 3 companies were certified from the start. In 2013, we changed the agency to BK, which could provide...

Condensation risks in wooden building components are mainly caused by water vapor penetrating the cross section of the component through airflow. Even small pressure differentials result in a lot more vapor flowing through a joint of only a few millimeters than that which would migrate by diffusion through many more undisturbed square meters of area...

Ventilation of buildings and homes is a key issue both from comfort and energy aspects. However to determine the average ventilation air flow or the Air Change Rate (ACH) for a heating season by tests in case of natural ventilation, involve certain difficulties. Essential requirements when testing a physical phenomenon: