Energy savings in buildings-a headache which goes beyond the ability of tradesmen. Energibesparing i byggnaden-huvudvark over skraganserna

In terms of energy usage and indoor climate a building works as a total system where the shell, the installations and services interact organically. However, technical knowledge of this total system is still undeveloped and the limitations of different trade categories hinders such development. Examples show how the efficiency of building methods such as tightening external walls depend on the ventilation system used in the building.