Technology: Composite Thermal-Insulation Systems or Monolithic Insulating Blocks in Housing?
Revised German energy-saving regulations (EnEV) came into force on 1 October 2009, bringing about a further tightening of requirements in respect of constructional and ser-vice technology in the housing sector. The outer wall plays an important role in terms of energy, and a broad selection of wall types exists, from solid to lightweight forms of construction. In Germany, modern requirements for housing structures aim to reduce primary-energy needs. The viability of a building in terms of energy use depends essentially on the relationship between the quality of the outer skin and the effectiveness of the mechanical services. One can compensate for an external wall that is relatively poor in conserving energy with more efficient installations, for example. A basic principle in energy-efficient housing is to minimize thermal losses through transmission and ventilation. A well-insulated, airtight building skin should be a priority.
