Midland Energy Assessors are qualified Irish Air Tightness Testers. Whether a building performs well or not in an air tightness test will determine how much energy is required to heat the building and how much is squandered through air leakage.
Air leakage is the uncontrolled flow of air both into and out of a building through gaps and cracks in its fabric. By measuring the air tightness of a building, Midland Energy Assessors can demonstrate to the client methods to reduce energy consumption due to leakage of air, how to avoid moisture condensation problems, how to avoid uncomfortable drafts caused by cold air seeping in from outdoors and finally, how to make sure a building’s air quality in not contaminated by indoor air pollution.
All of this is done via a Blower Door Test. A Blower Door is a powerful fan that is mounted to the frame of an exterior door. The fan pulls air out of the house thereby lowering the air pressure within the building. The higher air pressure outside the building then flows in through all its unsealed cracks and openings. The Blower Door consists of a frame and flexible panel that is placed in a doorway, a variable speed fan, a pressure gauge to measure the pressure differences inside and outside the building and an airflow manometer and hoses for measuring air flow.