Parametric study of the summer behavior in timber houses - comparison of wooden constructions.

The thermal protection of wooden single family houses in summer is topic of a greater research project realized at Holzforschung Austria in Vienna. The following paper depicts investigations on the thermal behavior of external wall elements during summertime. The measurements were performed on a test house in the form of a two-storey detached house (L=10.7m / W=8.7m / H=8.3m) of wood. Measurements for construction behaviour, indoor room climate and venting patterns were carried out in rooms and throughout the whole building during the first two years of investigation. The aim of this part are measurement results whereby simulation tools for the prediction of heat protection in summer can be improved. To obtain reproducible results, the house was aligned into geographical orientation and possible thermal interactions between the individual wall elements, avoided by separation. The surface temperatures were measured in the component layers in order to better evaluate thermal factors (facade colour, insulation, construction method, internal cladding). By comparing temperatures, influencing factors could be categorised which will be the basis for further simulations. Further investigations on this subject should be related to Phase Change Material (PCM) in components.

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