This inquiry would be related to the environmental part of the 3E sustainability framework by developing the general field of this inquiry in the field of such strategies that help reducing energy consumption in buildings like the effective passive techniques and improving them to enhance the use of them. Specifically, this inquiry supposed to being about the natural ventilation system, its application and the weakness of system which limit their usage in all buildings. This inquiry will start by this main questions; what is the disadvantage of ventilation system? And it continues with questions such as; is there any solution that improve the application of the ventilation system? If yes, are that solutions effective? If not, is there any new technology or method which could improve the ventilation system application and usage? Generally, this research tries to meet some new solutions to improve the ventilation system against its weakness which is penetration of air and sound pollution due to the openings as one of the elements of this system. So, this weakness of the system may limit the usage of it in educational buildings like schools, universities, library as well as healthcare buildings like hospitals and clinics. This solutions can be a new design methods, new insulation methods or even new materials that share the same benefit of natural ventilation system without its weakness.
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