An air pressure 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. Too much air leakage leads to unnecessary heat loss and can lead to discomfort to the occupants through cold draughts.
If you have constructed a new dwelling, then Part L of the Regulations states that you must now have an air pressure test performed on that building. An air pressure test is used to calculate an air permeability rating for the dwelling. It is this rating that must meet the latest Building Regulation standards for conservation of fuel and power.
We aim to complete each air pressure test within four working days from the point of engagement. It will be necessary for one of our experienced energy assessors to visit the site in order to conduct the test. The time at which we visit the site will be at your convenience and the length of each site visit should not last longer than four hours, depending on the size and complexity of the assessment.