Analysis of Building Envelope Materials Retrofitting of Timber Dwellings Based on Energy Efficiency

Abstract:

To find out the optimum building envelope retrofitting methods for timber dwellings in Western Hunan, China, energy efficiency retrofitting strategies of building envelope materials are optimized by an orthogonal test and energy simulation tool, DeST-h. On the premise of protecting their architectural styles, a comprehensive materials retrofitting strategy, a polyurethane foam insulation layer for the double-fir external wall envelope, reed foil for the clay insulation layer roof, using ordinary insulating glass units window material, is provided for the existing timer-structured dwellings in rural area of Western Hunan. After retrofitting, this passive strategy can achieve an energy-saving rate of 64.97%, short 4 years dynamic payback period of investment, and increase by 847h acceptable temperature hours in one year.

• Periodical: Key Engineering Materials (Volume 723)
• Pages: 687-693
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.723.687
• Online since: December 2016
• Authors: Chun Hua Huang*, Sheng Liu, Yi Ming Liu
• Keywords: Building Envelope Material, Energy Efficient Retrofitting, Energy Simulation, Traditional Dwelling

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