Analysis of Economic Thickness and the Suitable Insulation Thickness of External Wall Insulation Layer

Abstract

From the view of appropriate technology, this paper compares and analyzes the calculated thickness, feasible thickness, economic thickness, and appropriate thickness of the external wall insulation material with the highest contribution rate from the economic point of view, and obtains the relationship, curve, and model between the economic thickness and the appropriate thickness of the thermal insulation material. The purpose is to provide a reference basis and model for the optimal design of building energy-saving external walls. It inspires the architectural designers to consider the energy conservation of buildings from the economy’s perspectives and environment to get the optimal and environment-friendly energy-saving design method. The purpose is to provide a robust theoretical basis for guiding energy-saving housing investment and reducing the blindness of investment.