The Economic Evaluation of Exterior Insulation Technology under the Full Life-Cycle Theory

In order to provide some ideas and ways about how to evaluate the economic effects of energy-saving of the EIFS for the real estate developers and consumers ,and vigorously promote the construction of energy-saving buildings to respond to the "green energy" concept, this paper chooses a single exterior insulation of residential energy-saving measures as the research object, uses the basic principles of full life-cycle assessment, analyzes the effects of construction investment and returns which the EIFS brought about. This article takes the net present value method to do economic evaluation for actual application of the EITS, which finds it has short payback period (only 2.44 years) and significant long-term economic benefit1203.2 Yuan. Through the analysis, it shows that EIFS can be widely used in energy-saving residential areas, it has broad space for development and can bring enormous economic benefits.