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The Effect of Floor-to-Ceiling Height on Occupant Comfort

Abstract

Floor-to-ceiling height is an important architectural characteristic that can influence the environmental quality, spatial perception, and overall comfort of building occupants. The vertical dimension of interior spaces affects the volume of air available, daylight penetration, ventilation patterns, acoustics, and users' perception of spaciousness. Appropriate floor-to-ceiling heights are therefore important in creating interior environments that support occupant comfort and the functional requirements of different building types. This study examines the effect of floor-to-ceiling height on occupant comfort, focusing on the relationship between vertical spatial dimensions and users' physical and psychological experiences. The study considers factors such as thermal conditions, natural ventilation, daylight availability, visual perception, acoustics, and perceived spaciousness. It also examines how variations in ceiling height may influence comfort in different types of occupied spaces. The study further investigates the relationship between ceiling height and indoor thermal conditions. Higher ceilings can increase the volume of air within a space and may influence the distribution and movement of warm and cool air. In naturally ventilated buildings, increased vertical space may support the movement of warm air away from occupied zones, while inappropriate proportions may create difficulties in maintaining comfortable conditions. The effectiveness of these relationships is also influenced by ventilation openings, building orientation, occupancy levels, and climatic conditions. Daylighting and visual perception are additional factors affected by floor-to-ceiling height. Greater vertical dimensions can provide opportunities for higher-level windows and deeper daylight penetration, potentially improving the distribution of natural light within interior spaces. Ceiling height can also influence perceptions of openness, spaciousness, privacy, and psychological comfort. However, excessive height may not always improve comfort if it results in poor lighting distribution, difficult maintenance, or inefficient use of interior volume. The effect of floor-to-ceiling height may vary according to building function, occupancy patterns, environmental conditions, and interior configuration. Spaces such as offices, classrooms, residential rooms, halls, and public buildings may require different vertical dimensions based on their activities and performance requirements. Design decisions must therefore balance occupant comfort with construction costs, energy use, building services, maintenance, and efficient utilization of space. The study aims to assess the effect of floor-to-ceiling height on occupant comfort and identify appropriate considerations for determining effective interior vertical dimensions. The findings are expected to assist architects, engineers, developers, and building designers in making informed decisions concerning ceiling heights in relation to thermal comfort, ventilation, daylighting, acoustics, and spatial perception. Ultimately, the study seeks to promote interior environments that achieve appropriate levels of physical comfort, visual quality, functionality, and user satisfaction.

Keywords: Floor-to-ceiling height, occupant comfort, ceiling height, thermal comfort, natural ventilation, daylighting, spatial perception, indoor environment, air movement, visual comfort, acoustic conditions, building design, interior space, user satisfaction.