The study forms part of a research project performed by LEPTAB and ATMO Poitou-Charente within PRIMEQUAL program which targets the relation between the indoor and local outdoor pollution. According to many studies, outdoor pollution has a major influence on indoor air quality, airflow being the main factor linking the outdoor environment directly to the climate indoors. A precise regulation of the air flow entering the room is enabled by the mechanical ventilation system and this makes possible the control of the indoor air pollution concentration.
The increased sensibility, as far as the environmental demands are concerned, has intensified the research which aims at minimizing the energy consumption in buildings as well. In order to accomplish this task, new concepts and developments are necessary. Among those, the Second Skin Facades can play an important role. A simulation using the simulation code Simulink was set up.
The double facade is an extra skin around the building giving a cavity between the inner and outer facade. This cavity can be used for the control of the indoor climate. In winter solar energy absorbed by the blinds in the cavity and the heat losses through the internal facade can be used to preheat the ventilation air and can then be compared with the heat recovery unit in a mechanical ventilation system. In summer solar heat gains can be reduced by the effective sunshading system in the cavity. Then unwanted solar radiation is removed by natural ventilation in the cavity.
The first article described the second skin facade in relation to other types of facade such as the modern single-shell glass facade (curtain wall) and the climate-control facade. Various versions of the second skin facade were also discussed. This second article is a more in-depth look at the facade in relation to interior climate and air conditioning plants, and at construction dimensions for the second-skin facade.
Describes a research and development project that has been started in order to generate design guidelines for PER walls. The three tasks covered are computer modelling, experimental evaluation and development of design guidelines. Describes the results of the experimental evaluation of an exterior insulation finish system. The systems were evaluated for air leakage characteristics, pressure equalization response and water penetration. Concludes that a wall designed to PER principles is more able to resist rain penetration.
The "Intelligent Facade" is seen as a central element in the evolution of building form and building fabric to provice environmental control and comfort. Describes the background of bioclimatic architecture and goes on to give an outline of the subject of intelligent skins for buildings. Provides two examples of the case study review which has been performed.
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