Heat Flux Through the Timber Walls Under Summer Climate Conditions in Eastern Europe

The systems of air cooling and conditioning become more and more popular in Lithuania because of the reduced costs of equipment and installation. The popularity of the lightweight, heterogeneous and low thermal inertia envelops of buildings is increasing as well. Thus, there is a great demand for accurate methodology for calculation of non‐steady state heat transfer that will take into account the solar radiation influences, convection and radiation inside partitions. Generally received building thermal behaviour calculation methods were designed for massive partitions, that is why they have to be re‐verified according to the current situation. Thermal receptivity calculation methodology and a common engineering method are analysed in this paper according to experimental results. The research object is a well thermally isolated timber frame wall.