DOWNLOAD THE COMPLETE PROJECT

8 Users found this project useful

Influence of Building Envelope Openings on Indoor Environmental Quality

Abstract

The study examines the influence of building envelope openings on indoor environmental quality, with emphasis on how the size, position, orientation, and arrangement of windows, doors, vents, and other openings affect conditions within occupied spaces. Building envelope openings provide important connections between indoor and outdoor environments and influence natural lighting, ventilation, air movement, temperature, humidity, and indoor air quality. Their design and placement can therefore play an important role in determining the overall environmental quality and comfort of building interiors. The study will assess selected characteristics of building envelope openings, including opening size, number, position, orientation, height, distribution, operability, and relationship with internal spaces. Indoor environmental quality will be assessed using indicators such as indoor air temperature, relative humidity, air movement, natural illumination, ventilation conditions, and occupants’ perception of indoor comfort. The study will also consider building orientation, room dimensions, occupancy levels, surrounding obstructions, and other environmental factors that may influence the performance of envelope openings. A descriptive cross-sectional research design will be adopted for the study. Selected buildings will be assessed through physical observation, dimensional measurements, environmental monitoring, photographic documentation, and structured questionnaires administered to occupants where appropriate. Data obtained will be analyzed using descriptive statistics such as frequency, percentage, mean, and standard deviation, while appropriate comparative or correlation tests may be applied to determine the relationship between envelope openings and indoor environmental quality. The study is expected to reveal variations in indoor environmental quality among buildings with different opening configurations. Appropriately sized and positioned openings may improve natural ventilation, daylight availability, and air movement, thereby contributing to more comfortable indoor conditions. Conversely, inadequate, poorly positioned, or improperly distributed openings may restrict airflow, reduce daylight penetration, and contribute to unfavourable temperature and humidity conditions. The effects are also expected to vary according to building orientation, room depth, surrounding structures, shading, and occupant behaviour. The findings will be useful to architects, building designers, housing developers, environmental designers, facility managers, and other professionals involved in building planning and management. The study may provide useful information for improving the design and placement of building envelope openings to achieve better indoor environmental conditions. The findings may also support passive design strategies that enhance natural lighting and ventilation while reducing dependence on artificial lighting, mechanical ventilation, and cooling systems. The study will conclude by establishing the influence of building envelope openings on indoor environmental quality. It is recommended that the size, position, orientation, distribution, and operability of openings should be carefully considered alongside building orientation, room dimensions, shading, and surrounding conditions during the design process. Further studies involving different building types, climatic conditions, opening configurations, and occupancy patterns are recommended to provide broader guidance for environmentally responsive building design.

Keywords: Building envelope openings, indoor environmental quality, windows, doors, natural ventilation, natural lighting, air movement, indoor air temperature, relative humidity, daylight availability, building performance, passive design, building envelope, occupant comfort, environmental design.