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EQ Prerequisite 1 Minimum Indoor Air Quality (IAQ) Performance

LEED NC Indoor Environmental Air Quality 15 points Slide Editor: James A. Strapko LEED Source: www.intheleed.com. EQ Prerequisite 1 Minimum Indoor Air Quality (IAQ) Performance. EQP1: EQ Prerequisite 1 Minimum Indoor Air Quality (IAQ) Performance.

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EQ Prerequisite 1 Minimum Indoor Air Quality (IAQ) Performance

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  1. LEED NCIndoor Environmental Air Quality15 pointsSlide Editor: James A. StrapkoLEED Source: www.intheleed.com

  2. EQ Prerequisite 1Minimum Indoor Air Quality (IAQ) Performance

  3. EQP1: EQ Prerequisite 1Minimum Indoor Air Quality (IAQ) Performance 1st of 2 prerequisites in Indoor Environmental Air Quality (EQ for short) Intent: • to establish minimum IAQ performance to enhance indoor air quality in buildings • contribute to the well-being of the occupants Implementation: • Meet minimum requirement of Sections 4 thru 7 of ASHRAE 62.1-2004: Ventilation for Acceptable Indoor Air Quality  Mechanical Ventilation Systems: • designed using Ventilation Rate procedure OR applicable local code (whichever is more stringent) Naturallly Ventilated buildings: comply with ASHRAE 62.1-2004. Code: • ASHRAE 62.1-2004: Ventilation for Acceptable Indoor Air Quality, Sections 4 thru 7 • Submittal Phase:  • design

  4. EQ Prerequisite 2Environmental Tobacco Smoke (ETS) Control

  5. EQP2: EQ Prerequisite 2Environmental Tobacco Smoke (ETS) Control Intent: Minimize exposure of building occupants, indoor surfaces, and ventilation systems to ETS (Environmental Tobacco Smoke). Implementation: • Option 1:Prohibit Smoking •  no smoking except outdoors at least 25′-0” from: • entries • outside air intakes • operable windows • Option 2:Designated Areas • no smoking except in designated area and outdoor (same rules as previous for outdoor) • Designated smoke rooms to: • effectively capture, contain and remove ETS from building • be directly exhausted to outdoors • enclosed with deck to deck partitions • operate at negative pressure to adjacent spaces • Option 3 (residential only):No smoking in common areas.  • no smoking in all building common areas • wall, ceiling and floor penetrations are to be sealed off • doors are to be weather stripped • be tested for performance (ASTM E779-03)

  6. EQP2: EQ Prerequisite 2 Environmental Tobacco Smoke (ETS) Control Code:  • ANSI/ASTM E779-03, Standard Test Method for Determining Air Leakage Rate by Fan Pressurization • Residential Manual for Compliance with California’s 2001 Energy Efficiency Standards (For Low-Rise Residential Buildings), Chapter 4 Submittal Phase: • design

  7. EQ Credit 1Outdoor Air Delivery Monitoring

  8. EQ Credit 1: 1 PointOutdoor Air Delivery Monitoring Intent: Provide capacity for ventilation system monitoring to sustain occupant comfort and well-being. Implementation: Install Permanent monitoring systems that provide feedback on ventilation system performance • systems to generate ALARM when conditions vary by 10% set point • Mechanically vented spaces: • Densely Monitored Space: > 25 people/1000SF • monitor CO2 levels • Monitor location to be 3′ to 6′ above floor finish • for non-densely occupied spaces • provide direct outdoor airflow measure device. • detect when system is 15% below design rate • Naturally Ventilated Space: • Monitor CO2 • Monitor location to be 3′ to 6′ above floor finish • CO2 and airflow measures by: • pilot tubes, venturi meters, rotating vane anemometers • feed into HVAC and BAS systems Code:none Submittal Phase:design

  9. EQ Credit 2Increase Ventilation

  10. EQ Credit 2: 1 PointIncrease Ventilation Intent: • Provide additional outdoor air ventilation to improve IAQ for improved occupant comfort, well-being of occupants and productivity. Implementation: • Mechanically Vented Spaces: • increase breathing zone outdoor air ventilation rates to 30% above minimum ASHRAE 62.1-2004 rates • Naturally Vented Spaces: • design system to meet Carbon Trust Good Practice Guide 237 (1998). • make sure ventilation is effective by flow diagram in Figure 1.18 of CIBSE Application Manual 10: 2005 • use diagrammatic calculations to show design meets CIBSE or.. • use macroscopic, multi-zone, analytic mode to predict room-by-room airflows naturally ventilate 90% of occupied spaces per ASHRAE 62.1-2004 Codes: • ASHRAE 62.1-2004: Ventilation for Acceptable IAQ • Carbon Trust Good Practice Guide 237 (1998): Natural ventilation in non-domestic buildings • CIBSE Application Manual 10 (2005): Natural ventilation in non-domestic buildings Submittal Phase:design

  11. EQ Credit 3.1Construction IAQ Management Plan - During Construction

  12. EQ Credit 3.1: 1 Point Construction IAQ Management Plan - During Construction Intent: • Reduce IAQ problems associated with Construction/Renovation process • Help to sustain comfort and well-being of construction workers and building occupants Implementation: • Develop and implement an Indoor Air Quality (IAQ) Management Plan for during construction • during construction, meet or exceed SMACNA IAQ Guidelines for Occupied Buildings Under Construction, Ch 3 (2007) • Protect on-site or installed absorptive materials from moisture damage • insulation, carpeting, ceiling tile and drywall • AHU’s, during construction, must have filters with Minimum Efficiency Reporting Value (MERV) of 8 per ASHRAE 52.2-1999. • Control pollutant sources • spec materials with low VOC’s • control exhaust fumes • Interrupt Contamination Pathways • depressurize work areas • provide temporary barriers

  13. EQ Credit 3.1: 1 Point Construction IAQ Management Plan - During Construction Implementation, continued: • Interrupt Contamination Pathways • depressurize work areas • provide temporary barriers • Housekeeping activities • protect porous surfaces • dust control • Schedule the installation of materials to avoid contamination • Member of General Contractor’s Team to be IAQ manager. Codes: • SMACNA IAQ Guidelines for Occupied Buildings Under Construction, Ch. 3 (2007) • ASHRAE 52.2-1999: Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size Submittal Phase: • construction

  14. EQ Credit 3.2Construction IAQ Management Plan - Before Occupancy

  15. EQ Credit 3.2: 1 Point Construction IAQ Management Plan - Before Occupancy Intent: • Reduce IAQ problems associated with Construction/Renovation process • Help to sustain comfort and well-being of construction workers and building occupants Implementation: • Develop and implement an Indoor Air Quality (IAQ) Management Plan for pre-occupancy phase Option 1: FLUSH-OUT • after construction but before occupancy • 14,000 cubic feet of O/A (outside air) per sf of floor area • maintain 60 degrees • < 60% relative humidity • OR • if occupancy occur prior to flush out • delivery of 3500 cubic feet ofO/A (outside air) per sf of floor area • ventilate at .30 cfm/sf. • minimum 3 hours per date until 14,000 cf/sf of O/A is delivered • USE MERV 13 filters for HVAC

  16. EQ Credit 3.2: 1 Point Construction IAQ Management Plan - Before Occupancy Option 2: Air Quality Testing • conduct an IAQ baseline test after construction, prior to occupancy • use EPA Compendium of Methods for the Determination of Air Pollutants in Indoor Air. Code: • EPA Compendium of Methods for the Determination of Air Pollutants in Indoor Air Submittal Phase: • construction

  17. EQ Credit 4.1Low Emitting Materials - Adhesives & Sealants

  18. EQ Credit 4.1: 1 Point Low Emitting Materials - Adhesives & Sealants Intent: • Reduce the quantity of indoor air contaminants that are odorous, irritating, and or harmful to the comfort and well-being of installers and occupants. Implementation: • all ADHESIVES and SEALANTS used in interior of building (inside weather proofing system & applied on-site) is to comply with South Coast Air Quality Management District (SCAQMD) Rule #1168 and Green Seal (GS) Standard for Commercial Adhesives GS-36. • flooring adhesives, fire-stopping sealants, caulking, duct sealants, plumbing adhesives, cove base adhesives. Code: • South Coast Air Quality Management District (SCAQMD) Rule #1168, October 3, 2003 Amendment • Green Seal Standard 36 (GS-36), Oct, 2000 Submittal Phase: • construction

  19. EQ Credit 4.2Low Emitting Materials- Paints & Coatings

  20. EQ Credit 4.2: 1 Point Low Emitting Materials - Paints & Coatings Intent: • Reduce the quantity of indoor air contaminants that are odorous, irritating, and or harmful to the comfort and well-being of installers and occupants. Implementation: • all PAINT and COATINGS used in interior of building to comply with following: • PAINTS : Green Seal (GS) 11 • Anti-Corrosive and Anti-Rust Paints : GS-03 • Clear Wood Finishes, Floor Coatings, Stains, Sealers, Shellacs: SCAQMD Rule 1113 Code: • Green Seal Standard GS-11 • Green Seal Standard GS-03 • SCAQMD: South Coast Air Quality Management District Rule 1113, Architectural Coatings Submittal Phase: • construction

  21. EQ Credit 4.3Low Emitting Materials - Carpet Systems

  22. EQ Credit 4.2: 1 Point Low Emitting Materials – Carpet Systems Intent: • Reduce the quantity of indoor air contaminants that are odorous, irritating, and or harmful to the comfort and well-being of installers and occupants. Implementation: • All CARPET and CARPET CUSHIONS installed in building interior shall meet testing and product requirement of the Carpet and Rug Institute’s Green Label Plus Program. • All carpet adhesives shall meet EQ4.1. Code: • Carpet and Rug Institute Green Label Plus Testing Program. Submittal Phase: • construction

  23. EQ Credit 4.4Low Emitting Materials - Composite Wood & Agrifiber

  24. EQ Credit 4.2: 1 Point Low Emitting Materials - Composite Wood & Agrifiber Intent: • Reduce the quantity of indoor air contaminants that are odorous, irritating, and or harmful to the comfort and well-being of installers and occupants. Implementation: • Composite wood and Agrifiber products (MDF, particleboard, plywood, wheatboard, strawboard, panel substrates, door cores) used in interior of building shall contain NO ADDED UREA FORMALDEHYDE RESINS. Code: • none Submittal Phase: • construction

  25. EQ Credit 5 Indoor Chemical and Pollutant Source Control

  26. EQ Credit 5: 1 Point Indoor Chemical and Pollutant Source Control Intent: • Minimize potentially hazardous particulates and chemical pollutants. Implementation: • Minimize and control pollutant entry • Minimize Cross contamination between occupied areas • Install permanent entryway systems at least 6′-0" long to capture dirt • grates • grills • Exhaust rooms where hazardous chemicals are stored • keep negative pressure at .50 cfm/sf • If Mechanically Vented , installed filters should have MERV 13 rating or better Codes: • ASHRAE 52.2-1999: Method of Testing General Ventilation Air Cleaning Devices for Removal Efficiency by Particle Size Submittal Phase: • design

  27. EQ Credit 6.1 Controllability of Systems - Lighting

  28. EQ Credit 6.1: 1 PointControllability of Systems - Lighting Intent: • Provide high levels of lighting system control by individual occupants or multi-occupant spaces for various tasks for occupant’s comfort and well-being. Implementation: • Individual lighting controls for 90% minimum of building occupants • Multi-occupant lighting system controls that meet group needs and preferences Code: • none Submittal Phase: • design

  29. EQ Credit 7.1 Thermal Comfort - Design

  30. EQ Credit 7.1: 1 PointThermal Comfort - Design Intent: • Provide a comfortable thermal environment supporting productivity and well-being of building occupants. Implementation: • Design HVAC systems and Building Envelope per ASHRAE 55-2004. • Evaluate air temp. radiant temp, air speed, relative humidity • Coordinate with EQ P1. EQ 1, & EQ 2. Code: • ASHRAE 55-2004: Thermal Comfort Conditions for Human Occupancy Submittal Phase: • design

  31. EQ Credit 7.2 Thermal Comfort - Design

  32. EQ Credit 7.2: 1 PointThermal Comfort - Verification Intent: • Assessment of building’s thermal comfort over time. Implementation: • Survey within 6-18 months after occupancy • anonymous responses of overall satisfaction of thermal performance • If 20% or more of building occupants dissatisfied, develop a plan for corrective action • Plan should be in accordance with ASHRAE 55-2004 Code: • ASHRAE 55-2004: Thermal Comfort Conditions for Human Occupancy Submittal Phase: • design

  33. EQ Credit 8.1 Daylighting and Views - Daylight 75% of Spaces

  34. EQ Credit 8.1: 1 PointDaylighting and Views - Daylight 75% of Spaces Intent: • Provide connection between indoor and outdoor spaces through introduction of daylight and views into regularly occupied areas of the building. Implementation: • OPTION 1 - GLAZING FACTOR CALCULATION • achieve min. 2% glazing factor in minimum of 75% of regularly occupied areas. • OPTION 2 - DAYLIGHT SIMULATION MODEL • through computer simulation, demonstrate min. daylight illumination level of 25 footcandles in min. of 75% of regularly occupied areas. • OPTION 3 - DAYLIGHT MEASUREMENT • through records of indoor light measurements, demonstrate daylight illumination level of 25 footcandles in min. of 75% of regularly occupied areas. • ALL CASES • only area associated with room (actual square footage) can be applied toward the 75% total area calculation • provide daylight redirection and/or glare control devices

  35. EQ Credit 8.1: 1 PointDaylighting and Views - Daylight 75% of Spaces Code: • none Extra Credit: • Provide daylighting for 90% (instead of 75%) of occupied areas. Submittal Phase: • design

  36. EQ Credit 8.2 Daylighting and Views - Daylight 90% of Spaces

  37. EQ Credit 8.2: 1 PointDaylighting and Views - Daylight 90% of Spaces Intent: • Provide connection between indoor and outdoor spaces through introduction of daylight and views into regularly occupied areas of the building. Implementation: • Achieve direct line of site to outdoor for occupants in 90% of all regularly occupied areas • glazing between 2′-6″ & 7′-6″ • Plan View: • area within sight lines drawing from perimeter vision glazing • Section View: • direct line of sight can be drawn from area to perimeter vision glazing Code: • none Extra Credit: • case by case basis Submittal Phase: • design

  38. LEED NCIndoor Environmental Air Quality15 pointsSlide Editor: James A. StrapkoLEED Source: www.intheleed.com

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