How do you test for air tightness?
How is the Air Tightness Test completed? Air Testers install blower door testing equipment (big fans) to an external opening (typically a doorway) and will use this to pressurise the building and test over pressure differentials . The external air pressure then flows in through cracks and openings.
When is an air tightness test required?
Building regulations states that: New build residential properties and those over a certain size (500 m2) must undergo air tightness testing before being sold. Small developments of one or two properties that are exactly the same must have one of the buildings undergo air tightness testing.
How is an air permeability test done?
Air permeability is determined by measuring the rate of airflow through a known area of material. This is achieved by applying a known pressure differential across a set area of material. Both these factors can be selected for the particular type of material being tested.
What is an air pressure test?
Air tightness testing, also referred to as air pressure testing, is used to determine the amount of uncontrolled air leakage through gaps and cracks within the building.
What is an airtightness/air leakage testing?
Air tightness testing, also known as air permeability testing or air leakage testing, is a way of determining how much air is lost through leaks or cracks in the fabric of a building. Air leakage is different from ventilation as it refers to the uncontrolled flow of air – such as draughts.
What is an air tight test?
What is an Tightness Test. An air tightness test (also commonly referred to as an air leakage test or air permeability test) is a test to determine the level of uncontrolled air flow through gaps or cracks in the fabric of a building.
What is an air tightness test?
Air Tightness Testing Explained Part L Test. Particular Test and Building Readiness Operation. Air Permeability & The Envelope Area. Air Change Rate. Cold Roof Envelope Area Measurement. Measuring a Warm Roof Construction’s Envelope Area. Building Preparation. Best Practice Processes
What is air barrier testing?
An Air Barrier Test is a test performed during construction to check the quality of the installation of the Air Barrier.