The past few decades in the world are increasingly paying attention to energy efficiency, especially in systems that maintain environmental conditions in buildings, because they represent major energy consumers. In order for energy efficiency to be a sustainable reduction in energy consumption must coincide with the provision of desired environmental conditions. This is important because thermal comfort, air quality and other influential parameters do not greatly affect the health of people and their working ability, while staying in indoors. Through this work, will be reflected the influence of the orientation of the room on the state of the thermal comfort in it, which as a result will have an impact on the productivity of the users of those premises. The research was conducted in real terms, in two offices and all the data obtained through experimental measurements, questionnaires and numerical simulations were combined and adequately compared, resulting in important conclusions regarding the effect of heat comfort and the local state of thermal comfort on productivity of office users.
 *** ASHRAE, ANSI/ASHRAE Standard 55. 2004.
 *** ISO, International standard ISO 7730. 2005.
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