Lexikon - Blower door procedure
It is used to test the air tightness of buildings. By ventilation, on overpressure and on under pressure is created between the inside and the outside (50 Pa). A magnitude of n-50 is reached, which shows the resulting volume currents in cracks and ridges. Especially for new constructions, this procedure is recommended since it reveals mistakes in execution. Mistakes can be worked on and damage from dew can be avoided.
- Steam brake
The steam break is the most sensitive detail in the wood frame building. It prevents warm damp air penetrating into the exterior wall or the roof at cold winter days. In this case, the components would soak and it would be an ideal habitat for all types of parasites. The steam brake is therefore part of the structural wood protection and it makes the impregnating of the wood construction with Biocides unnecessary. In the new building a so-called "blower-door-test"is carried out in order to ensure the necessary air density of the building.
- Energy/ heat consumption ID
It gives the essential statements about the expected energy demand and serves as a base for the fulfilling of the "EnEV"standards. Especially the energy consumption ID includes specific magnitudes of the warmth loss transmission, the appliances for heating, warm water installation and ventilation, the energy demand of each device and the yearly primary energy demand.
- Energy demand/ consumption
The energy demand is calculated according to the standards of the "EnEV"and offers a comparison for valuing buildings. The actual energy consumption can deviate, however, considerably from the calculated requirement due to actual climate conditions, usage of heat plant, user behavior and concerned technology.
- EnEV
It the abbreviation for the energy saving law from February 1, 2002 and therewith a valid control. It describes the magnitude of heat and warm water consumption for the building, and in this way it helps to estimate and limit the necessary yearly primary energy demand. Bases for the "EnEV" is the "Energieeinspargesetz" from 1976 and the warmth protection law (WSchVo). Finally it is not an amendment of the WSchVo 1995, the decisions of the world climate conference in Kyoto in1997 about the reduction of the CO2 emission. More over the former heating system law was integrated and values therefore in addition next to the air density and warmth bridge space also the quality of the energy source. With this, the utilization of renewable sources of energy, for the first time, is a part of the positive balance.
