LEED AP BD+C Training Course By : Ranya Metwalli Shields LEED AP BD+C, CEM Green International
Indoor Environmental Quality Category
EQ Category Overview •
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“People” character : Addresses air quality, acoustics, thermal and visual comfort
Lack of clarity and precision re: effect of IEQ on comfort, health. Mix of Prescriptive measures and performance oriented requirements
EQ Category Overview •
Occupied (individual , shared ) vs Unoccupied Space
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Regularly vs non-regularly occupied space
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Examples Table 1 P 600
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Credits affected by space classifications table 2 P 601
Prerequisite : Minimum Indoor Air Quality Performance Page 605 Maintaining minimum IAQ standards Dilute pollutants using adequate ventilation Standards including ASHRAE 62.1-2010 and others were chosen because they strike a good balance between energy efficiency and fresh air intake Monitoring helps maintain IAQ throughout building operational phase Non attainment for PMV 2.5 • •
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Prerequisite : Environmental Tobacco Smoke Control Page 623 Prevent Exposure to ETS • • •
Compare to v2009 – more stringent Indoor smoking now only for residential Affects not only human health but longevity of building surfaces
Prerequisite : Minimum Acoustic Performance Page 633 (SCHOOLS ONLY ) Effective Acoustic Design for Learning
Affects Quality of Learning Credit now exists in v4 for all rating systems NRC : Noise Reduction Coefficient ( how much sound is absorbed by a material) Leq : Peak hour continuous noise equivalent Reverberation time : Time for sound to die after source has ceased – use sound absorbing treatments STC : Sound Transmission Class ( sometimes Coefficient ) : Higher= Greater Reduction of Sound Frequency Transmission • • • • •
Dilute pollutants using adequate ventilation Monitoring helps maintain IAQ throughout building operational phase
Page 656 Definitions
Credit: Low-Emitting Materials Page 645 Reducing Concentration of Contaminants Building Interior and Exterior organized into seven categories with different thresholds of compliance Inherently non-emitting materials eg stone, glass Option 2 : Individual categories do not meet threshold requirements •
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Credit: Construction IAQ Management Plan Page 677 Reducing IAQ issues related to construction works •
SMACNA Guidelines P 682
Credit: IAQ Assessment Page 685 To establish better Indoor Quality After Construction and During Occupancy
Credit: Thermal Comfort Page 695 To promote occupant comfort , productivity and well-being
Credit: Interior Lighting Page 711 To provide high quality lighting Definitions P722 Example P 717
Credit: Daylight Page 723 Use of daylighting
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Focuses on Use of daylight simulation and actual analyses
Credit: Quality Views Page 739 Connection to Outdoors
Greater emphasis on quality of view Involves building orientatation , site façade , interior layout P 746 View Factor P749 Examples
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Credit: Acoustic Performance Page 739 Connection to Outdoors
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LEED building performance exceptional in all other categories
