Currently in Chile several programs are used in order to promote sustainable construction. On this scenario was created S.D. N°. 255 of the House and Urban Development Minister of Chile which, among other objectives, seeks to thermally refurbish houses to provide greater comfort to the inhabitants of this. In practice, this thermal reconditioning has not been implemented in the Metropolitan Region due to in none of its versions funds have been allocated to it. This paper quantifies how much the social benefit would increase if the subsidy was applied in RM. For this, various representative dwellings of housing stock were modeled and was done an economic analysis that led to the conclusion that it is beneficial, at least from a social standpoint, its application.

The purpose of this paper is to correlate the sound insulation of dwellings with its location in different climatic zones existent in Spain. Dwellings situated in a region with Mediterranean subtropical climate were analyzed in this stage. Fifty dwellings situated in Malaga, south of Spain (36 43N, 4 25W) were selected. These dwellings are representative of the type of construction used in this area. To characterize the airborne conduction of noise, 150 measurements of airborne sound insulation of facade were carried out, following ISO 140-5 standard. In living rooms and bedrooms, R45w was obtained, following ISO 717-1 standard. Finally, a correlation was found between the apparent sound insulation and the different type of construction of the different type of facade.