BUILDING’S AIRTIGHTNESS TEST
We provide Blower Door test – to help determine a home’s airtightness. The testing method is in accordance with ČSN EN ISO 9972. We are authorised provider of the Nová zelená úsporám project.
When do you need Blower Door test?
The Blower Door test is mostly required for passive and low energy consumption houses. We recommend to make the test during the building process, just after installation of all windows and entrance doors. At this time it is quite simple to detect and repair possible leaks. Before the test, we prepare the building by temporarily sealing air-conditioning conduits, woodstove air inlets, drain outlets etc. During the test we lower or increase the air pressure inside the building (pressure range 20 – 70 Pa). The result including the n50 value is protocoled.
What does Blower Door include?
- building preparation
- temporarily sealing air-conditioning conduits, woodstove air inlets, drain outlets etc.
- during the test we lower or increase the air pressure inside the building (pressure range 20 – 70 Pa)
- the result including the n50 value is protocoled (SAMPLE PROTOCOL for download here)
WHAT TYPES OF BUILDINGS CAN BE TESTED
We measure also apartment buildings and industrial objects, where more measuring sets are needed.
DETECTION OF AIR LEAKS
Together with the test we offer detection of air leaks. We use several methods (except initial palm detection): anemometer, smoke pencil and thermal imaging camera.
