What Is a Planning Decision Notice?
When navigating the world of building compliance testing, understanding planning terminology is essential. One key term you’ll encounter is – what is a Planning […]
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PSI-Values (Ψ-values)
Measured Thermal Bridging A PSI-value (Ψ-value) is a measure of the rate of heat loss through a thermal bridge, which occurs where building elements—such as […]
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Osmotic Blistering
What is Osmotic Blistering? Osmotic blistering is a defect in a wall covering such as a paint finish – typically seen on […]
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Ventilation
Ventilation is the supply and removal of air by natural and/or mechanical means to and from a space or spaces in a […]
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Low Pressure Pulse Test (LPP)
Low Pressure Pulse Test (LLP) also commonly referred to as Pulse Testing. Pulse is a compressed air based means of measuring building […]
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Blower Door Fan Test
Blower Door Fan test, which is also commonly referred to as a fan test is a means of measuring building air leakage […]
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Air Permeability
Air Permeability is the physical property used to measure the air tightness of building fabric (known as the envelope area). It is […]
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Design Air Permeability
Building Compliance Testing – Air Permeability Testing Air Tightness Definition Approved Document L, Conservation of fuel and power, Volume 1: Dwellings, 2021 […]
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