To specify the characteristics of the various types of double skin facades, a typology has been developed. The main purpose of this research project was the development of adjustable heat conservation and solar shading devices made of renewable materials. This was done to reduce the amount of energy for the heating and cooling of buildings with double skin facades and to minimize the amount of energy, embedded in the facade. The examinations and experiments have shown, that the use of timber for a new kind of heat conservation and shading louvres allows for the reduction of the amount of embedded energy to 25%, if compared to regular systems made of aluminium. The use of the louvre system reduces the U-value of double-skin-facades to almost 0,7 W/m2K, compared to the U-value of 1,33 W/m2K of the same system without a heat conservation device. With regard to solar shading, the system made of timber allows for the reduction of solar transmission down to 4-17%. In addition to these functional aspects, this new kind of louvres widens the possibilities of the architectural expression of facades to a large degree.    «

To specify the characteristics of the various types of double skin facades, a typology has been developed. The main purpose of this research project was the development of adjustable heat conservation and solar shading devices made of renewable materials. This was done to reduce the amount of energy for the heating and cooling of buildings with double skin facades and to minimize the amount of energy, embedded in the facade. The examinations and experiments have shown, that the use of timber for...    »