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Energy Efficient Building
a)
b) c)
d) e) f)
Figure 1. Existing solar control films pathologies: a) tears; b) cracks; c) blistering; d) lack of transparency; e) detachment; f) deterioration of the external layers of the film
The physical conditions of the existing SCF demonstrate that the optical and thermal properties of the film are not homogeneous throughout the glass area and can vary from office to office, depending on the level of deterioration of each film. These conditions decrease the external visibility through the glazing system and create luminous and thermal asymmetries in the indoor space, reducing the building’s energy efficiency, indoor thermal and luminous environment and the occupants’ satisfaction with the workspace comfort conditions.
4. Acknowledgment
The author wishes to acknowledge the support of FCT (Foundation for Science and Technology) PhD Grant FCT PD/BD/127848/2016.
5. References
Moretti E., Belloni E. (2015), Evaluation of energy, thermal, and daylighting performance of solar control films for a case study in moderate climate, Building and Environment. Vol. 94, pp. 183-195, 2015.
European Standard, Glass in building (2014), Adhesive backed polymeric filmed glass – Part 1: Definitions and requirements. EN 15755-1. Brussels.
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