Indoor Environmental Quality. Indoor Environmental Quality. LEED Addresses the following issues related to indoor environmental quality: Indoor Air Quality Occupants' well-being, comfort, and control. Indoor Environmental Quality. Critical Components Indoor Air Quality Thermal Comfort
LEED Addresses the following issues related to indoor environmental quality:
Indoor Air Quality
Occupants' well-being, comfort, and control
Indoor Air Quality
Goals of IEQ
Minimize the risk of building-related health problems
Maintain high-quality indoor environments
Introduce daylight and views
Provide occupants with controls
Acoustic and thermal comfort
Most Americans spend 90% of their time indoors. Levels of pollutants may be 200% to 500% higher indoors than outdoors, even in cities with a lot of air pollution
Volatile Organic Compounds (VOCs)
Radon and Methane off-Gassing
Carbon Dioxide (CO2)
Effective Way to Control?
Mechanical / Active
Natural / Passive
Institute a no-smoking policy in the building and around building entrances, operable windows, and air intakes.
Ensure adequate ventilation
ASHRAE Standard 62.1
Monitor Carbon Dioxide (CO2)
Install High-Efficiency Air Filters
Use filters with high Minimum Efficiency Reporting Value (MERV) ratings in ventilation equipment.
Specify Low-Emitting Materials
Protect Air Quality During Construction
Conduct a Building Flush-Out Before Occupancy
Install Entryway Grates
Place grilles, grates, or mats at least 10 feet long at all major entrances help to reduce the dust, dirt, and contaminants brought into the facility.
Develop cleaning procedures to properly maintain entryway systems.
Employ a Green Cleaning Program.
Use Integrated Pest Management
Lighting and Views
Good Acoustic Conditions
Provide for Occupants Thermal Comfort
ASHRAE Standard 55
Thermal Comfort Factors
Give Building Occupants CONTROL!
Temperature Ventilation Lighting
Ask Them if They are Thermally Happy.
Provide Views to the Outdoors
Provide Good Acoustic Conditions