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Indoor Environmental Quality
Fundamentals of EQ
Key ConceptsLEED GoalsStrategiesMeasuresStandards
Indoor Environmental Quality
Critical Components
Indoor Air QualityThermal ComfortLightingAcoustics
Indoor Environmental Quality
Goals of IEQ
Minimize the risk of building‐related health problemsMaintain high‐quality indoor environments
Indoor Environmental Quality
Strategies
Control pollutantsIntroduce daylight and viewsProvide occupants with controlsAcoustic and thermal comfort
Indoor Environmental Quality
Indoor Air Quality
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
Indoor Contaminants
Volatile Organic Compounds (VOCs)Carbon Dioxide (CO2)ParticulatesTobacco Smoke
Indoor Air Quality
Off‐Gassing
FurnitureCarpetsPaintsCleaning productsOfficemates
Indoor Air Quality
Off‐Gassing
FurnitureCarpetsPaintsCleaning productsOfficemates
Indoor Air Quality
Effective Way to Control?
Off‐Gassing
FurnitureCarpetsPaintsCleaning productsOfficemates
Indoor Air Quality
Effective Way to Control?
Off‐Gassing
FurnitureCarpetsPaintsCleaning productsOfficemates
Indoor Air Quality
VentilationMechanical / Active
Off‐Gassing
FurnitureCarpetsPaintsCleaning productsOfficemates
Indoor Air Quality
VentilationNatural / Passive
Strategies for Maintaining Indoor Air Quality
Prohibit smoking
Indoor Air Quality
Institute a no‐smoking policy in the building and around building entrances, operable windows, and air intakes.
Strategies for Maintaining Indoor Air Quality
Ensure adequate ventilation
Indoor Air Quality
ASHRAE Standard 62.1
Monitor Carbon Dioxide (CO2)
Indoor Air Quality
Install High‐Efficiency Air Filters
Indoor Air Quality
Use filters with high MERV ratings in ventilation equipment.
Specify Low‐Emitting Materials
Indoor Air Quality
Protect Air Quality During Construction
Conduct a Building Flush‐Out Before Occupancy
Indoor Air Quality
Control Measures:
HVAC ProtectionSource ControlPathway InterruptionHousekeepingScheduling
Indoor Air Quality
Employ a Green Cleaning Program.
Indoor Air Quality
Access to Daylight and ViewsComfortable TemperatureGood LightingGood Acoustic Conditions
Thermal Comfort, Lighting, and Acoustics
Access to Daylight and ViewsComfortable TemperatureGood LightingGood Acoustic Conditions
Thermal Comfort, Lighting, and Acoustics
Use Daylighting
Thermal Comfort, Lighting, and Acoustics
Provide for Occupants Thermal Comfort
Thermal Comfort, Lighting, and Acoustics
ASHRAE Standard 55
Thermal Comfort Factors
Thermal Comfort, Lighting, and Acoustics
Give Building Occupants CONTROL!
Temperature Ventilation Lighting
Thermal Comfort, Lighting, and Acoustics
Ask Them if They are Thermally Happy.
Thermal Comfort, Lighting, and Acoustics
