Indoor Environment of Buildings

A pleasant indoor environment is crucial for occupants' comfort and health, encompassing factors like air quality, thermal conditions, acoustics, and lighting.

Indoor climate encompasses air quality (ventilation, air movement), thermal conditions (temperature, humidity), acoustics (sound level), and lighting (quality and quantity).

External factors like climate type and outdoor air quality can affect indoor environment, particularly in buildings with natural ventilation.

A good indoor environment enhances occupant health, comfort, and satisfaction; improves building's value and avoids potential problems like furnishing/equipment damages, tenant dissatisfaction, and negative publicity.

Ignoring indoor environmental issues can lead to damage to furnishings, equipment, and occupant health, as well as reduced tenant satisfaction and negative reputation.

The United Nations Sustainable Development Goal 3 emphasizes the importance of ensuring healthy lives and promoting well-being for all ages, which directly relates to creating healthy indoor environments in buildings.

Building layout, building materials, mechanical and electrical systems should be carefully considered during the design to maximize occupant comfort and safety in any type of building.

Buildings should be designed, constructed, occupied, and maintained with awareness of environmental factors to create healthy indoor environments throughout the building's lifespan.

The average temperature of the air inside a room.

The average temperature of the radiant surfaces surrounding a person in a space.

The Mean Radiant Temperature (MRT) of the surrounding surfaces in a space.

MRT significantly influences thermal comfort, contributing to the overall sensation of warmth or coldness.

Air temperature measures the temperature of the air, while MRT measures the average temperature of the surrounding surfaces, including walls, windows, and furniture.

The quality of buildings and how well they support human health and well-being.

Can cause respiratory problems, allergies, cardiovascular issues, and other health issues.

Natural light can reduce stress, improve mood and overall well-being while in a building.

Maintaining a comfortable indoor temperature to support health and efficiency.

Minimizing sound levels to reduce stress, sleep disturbance and improve well-being.

Ensuring access to clean and safe water is essential for indoor building health.

Non-toxic materials promote good indoor air quality.

Proper ventilation improves indoor air quality, reducing pollutants.

The process of supplying fresh air and removing stale air from a building.

The rate of air flow in a room; it affects heat loss from the body by convection.

The measure of heat and temperature related to an environment.

Maintaining good indoor air quality to promote health and well-being.

The sound levels in an indoor environment to affect building occupant's well-being .

The quality and quantity of light in a space, encompassing both natural and artificial sources.

The condition of the air inside a building.

The ratio of moisture in the air compared to the maximum amount of moisture the air can hold at that temperature.

The measurement of pressure variations in a medium, often used to describe how loud something is.

The unit used for measuring sound level, a logarithmic scale.

The measure of how much sound pressure is present in a certain environment.

Factors like temperature, humidity, sound, and light all influence how comfortable and healthy an indoor space feels.