Lexikon A
- A/V in proportion to (A/VE)
It is the indicator for the compactness of a building. It is a basis for the energy and economic review and the calculation of warmth protection. It describes the proportion of the transmission outside area (A) to the heated volume (Ve). The smaller the proportion is, the slighter the losses caused by transmission are. The geometrically compact body's ball and cube have therefore the slightest warmth loss However, in the practice, it turned out that a lying rectangular solid can gain the larger possible solar warmth profits. That is why it is energetically the most favorable design.
- Acoustic decoupling
Can be reached through the separation of components or single layers of a layered of a layered component. It restricts strongly the transmission of sound, e.g. steps. Cement floor, e.g., is comprehensively covered with insulation in order not to touch the walls at any place and therewith not to transmit the sound wave.
