Air Pressure Testing
Building Energy Surveyors specialise in residential air pressure testing. Our team undertake these tests and provide detailed analysis on how to reduce the air permeability of a home.
What is an Air Pressure Test?
An air pressure test measures the uncontrolled flow of air that can come through any gaps or cracks within a building. Prior to the commencement of the test, all external openings are sealed (Vents, Chimneys, Waste Pipes) as air flow through these devices are controlled and required for comfortable living. By reducing uncontrolled air leakage in your home, you will reduce unnecessary heat loss and draughts.
The test measures the air permeability of a home by attaching a specialised fan to the main external door which takes a range of pressure and flow readings.
Why have an Air Pressure Test?
It is now mandatory that all new single homes and a percentage of units in new developments require an air pressure test. The introduction of mandatory air pressure testing is aimed at reducing carbon dioxide emissions by decreasing the amount of energy required to heat the home.
The following table outlines the number of tests required:
| Number of Units | Number of Tests |
| 4 or less | One test |
| Greater than 4, but equal or less than 40 | Two tests |
| Greater than 40, but equal or less than 100 | At least 5% of the dwelling type |
| More than 100 (a) where the first five tests achieve the design air permeability (b) where one or more of first five tests do not achieve the design air permeability |
At least 2% (for dwellings in excess of first 100 units) At least 5% of units, until 5 successful consecutive tests are achieved, 2% thereafter |
Note: Detailed building regulations can be found on the www.environ.ie website.
