Abstract
Abstract: Social housing in Mexico has been built without considering internal thermal comfort. This situation has forced people to live in adverse conditions, increase the use of air-conditioning systems for those who can afford it, or to abandon the houses looking for a better place. Currently Mexico has nearly five million abandoned dwellings and 40% of built housing deficit requires expansion and/or improvement. Retrofit of existing buildings has been carried out in the world to improve energy efficiency or to reduce green housing emissions; however, in Mexico retrofit is not widely applied and less in social housing. This paper proposes and applies in two case studies with hot, semi-humid climate a method to evaluate the improvement of indoor thermal comfort through enhancing envelopes U value. Finally, an economic analysis is conducted to assess retrofitting social housing with Mexican government programs funds.
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