The Glossary sets out important NZEBNearly Zero Energy Building (nZEB) is a building that has a very high energy performance. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby. Directive 2010/31/EU and BIMBuilding information modeling (BIM) is digital representation of physical and functional characteristics of a facility creating a shared knowledge and resource for information about it forming a reliable basis for decisions during its life cycle, from earliest conception to demolition. definitions and terminologies. Become familiar with these.
A-weighted sound level (dB) is the most common single number rating system for measuring the loudness of a noise. It maybe read directly on most sound level meters by selecting the designated scale. It is obtained by applying the A-weighted frequency response curve to the measured sound. The response curve is indicative of the way humans respond to different frequencies.
Process whereby a porous material extracts one or more substances from an atmosphere, a mixture of gases, or a mixture of liquids.
ACH is an acronym for Air Changes per Hour and is a measurement of air infiltration. It is the total volume of air in a home that is turned over in one hour.
(1) Process in which fluid molecules are concentrated on a surface by chemical or physical forces or both; (2) surface adherence of a material in extracting one or more substances present in an atmosphere or mixture of gases and liquids, unaccompanied by physical or chemical change.
Asset Information Model (AIM) is the model that compiles data and information necessary to support asset management.
Asset Information Requirements (AIR), define the information required for an Asset Information Model.
This is the line within the envelope of the dwelling where the barrier to air leakage will be. A system of materials that enclose a volume of air with minimal air leakage between the enclosed air and the exterior. The effectiveness or adequacy of the air barrier can be measured by the volume of air (in cubic feet per minute) that must be added or removed from the enclosure.
Air Changes per Hour (ACH) is an acronym for Air Changes per Hour and is a measurement of air infiltration. It is the total volume of air in a home that is turned over in one hour.
Air control layers control airflow between a conditioned space and an unconditioned space or between units in multi-family and apartment construction. The air control layer system is the primary air enclosure boundary that separates indoor (conditioned) air and outdoor (unconditioned) air. In multi-unit/townhouse/apartment construction the air control layer system also separates the conditioned air from any given unit and adjacent units. Air control layer systems also typically define the location of the pressure boundary of the building enclosure. In multi-unit/townhouse/apartment construction the air control layer system is also the fire barrier and smoke barrier in inter-unit separations. In such assemblies the air control layer system must also meet the specific fire-resistance rating requirement for the given separation. Air control layer systems typically are assembled from materials (such as gypsum board, sealant, etc.) incorporated in assemblies (such as walls, roofs, etc.) that are interconnected to create enclosures.
Air leakage is the uncontrolled flow of air through gaps and cracks in the external envelope/fabric of buildings (sometimes referred to as air infiltration, exfiltration or draughts).
