摘要：In this article, the authors carried out a research on a typical linear wall-foundation thermal bridge of a low-energy residential building, based on the principles of energy and economic efficiency. The empirical study showed that the most economical way to heat the foundation of a A + class residential building is with a continuous insulation thickness of 100 mm XPS200 (T3 position). In this position the linear wall-foundation thermal bridge is equal to 0,13 W/(mK). The annual cost per 1 meter of this connection is 0.84 €/m. The simple payback period is 30 years. By heating the foundation with 250 mm insulation thickness layer, the standard linear thermal bridge size (0.10 W/(mK)) is achieved, however this solution exceeds the economic life cycle of the material, and the payback can reach 65 years. Under other preconditions, the research shall be reviewed.
其他摘要：In this article, the authors carried out a research on a typical linear wall-foundation thermal bridge of a low-energy residential building, based on the principles of energy and economic efficiency. The empirical study showed that the most economical way to heat the foundation of a A + class residential building is with a continuous insulation thickness of 100 mm XPS200 (T3 position). In this position the linear wall-foundation thermal bridge is equal to 0,13 W/(mK). The annual cost per 1 meter of this connection is 0.84 €/m. The simple payback period is 30 years. By heating the foundation with 250 mm insulation thickness layer, the standard linear thermal bridge size (0.10 W/(mK)) is achieved, however this solution exceeds the economic life cycle of the material, and the payback can reach 65 years. Under other preconditions, the research shall be reviewed.
其他关键词：longitudinal thermal bridge;A energy efficiency class;foundation insulation
