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Dwelling Type Definition for Air Tightness Testing
NI-wide·Technical Booklet F1 Conservation of Fuel and Power in Dwellings
Dwelling type – for the purposes of air tightness testing, is the allocation of each dwelling on a development to a generic dwelling type by the person carrying out the air tightness testing. To be cl
dwellingenergytestingEnvelope Area Definition
NI-wide·Technical Booklet F1 Conservation of Fuel and Power in Dwellings
Envelope area – the total area of all wall, floor and ceiling elements that enclose the internal volume subject to an air permeability test. This includes walls and floors below external ground level.
dwellingenergytestingflats