Building exterior wall insulation thickness for determination of optimum and cost analysis

By insulating the buildings, the required heating energy is decreased and energy saving is provided. Determining the correct material and optimum insulation thickness are very important issues in thermal insulation. In Turkey, the most of the produced energy is used for heating. This situation emphasizes the need for insulation on buildings. In this study, the optimum insulation thickness for coal as energy sources and polystyrene as insulation materials is calculated for Balıkesir, Kayseri, Malatya, Mersin, Muğla, Şanlıurfa ve Trabzon cities that selected from seven different regions of Turkey. Two different wall types as sandwich wall and wall insulated on external side are used in the calculations. As a result, considerable energy saving is obtained.