How We Obtained LEED Certification pertaining to the Indoor Environmental Quality Category. Ron Fields, CAFS, NCT General Dynamics C4 Systems

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1 How We Obtained LEED Certification pertaining to the Indoor Environmental Quality Category Ron Fields, CAFS, NCT General Dynamics C4 Systems

2 Outline What is LEED EB? GD LEED Costs and savings IEQ Prerequisites IEQ Credits GD Scorecard Conclusion

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5 4 prerequisites 10 credits 22 possible points GOALS: Establish good indoor air quality Eliminate, reduce and manage the sources of indoor pollutants Ensure thermal comfort and system controllability Provide for occupant connection to the outdoor environment

6 LEED-EB in Arizona 1.5 MSF manufacturing campus in Scottsdale Roosevelt Facility earned LEED-EB certification in 2005 Hayden Facility is currently pursuing LEED-EB certification Certification Investment Simple Payback in < 1 Year

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9 Since 2004, $100K Annual Savings in Material Reuse 10,000 LBS of Cabling reuse

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11 Indoor Environmental Quality 4 Prerequisites Outside Air Introduction & Exhaust Systems Environmental Tobacco Smoke (ETS) Control Asbestos Removal or Encapsulation PCB Removal 10 Total Credits 22 Total Points 26% of Total Possible Points

12 Indoor Environmental Quality Prereq.1: Outside Air Introduction & Exhaust Systems Intent: Establish minimum indoor air quality (IAQ) performance to enhance indoor air quality in buildings, thus contributing to the health and wellbeing of the occupants. Requirements: Modify or maintain existing building outsideair (OA) ventilation distribution system to supply at least the rate required by ASHRAE Implement and maintain an HVAC system Maintenance Program Test and maintain the operation of all building exhaust systems, including bathroom, shower, kitchen and parking exhaust system

13 Indoor Environmental Quality Prereq. 2: ETS Control Intent: Prevent or minimize exposure of building occupants, indoor surfaces and systems to Environmental Tobacco Smoke (ETS). Requirements: Prohibit smoking in the building except in designated areas Locate any exterior smoking areas at least 25 feet from entries, operable windows or air intakes Locate designated smoking rooms to effectively contain, capture and remove ETS from the building. At a minimum, the smoking room must be directly exhausted to the outdoors with no re-circulation of ETS-containing air to the non-smoking area of the building, and enclosed with impermeable deck-todeck partitions. With the doors to the smoking room closed, operate exhaust sufficient to create a negative pressure with respect to the adjacent spaces

14 Indoor Environmental Quality Prereq. 3: Asbestos Removal or Encapsulation Intent: Reduce the potential exposure of building occupants to asbestos prevent associated harmful effects of asbestos in existing buildings. Requirements: Have in place an asbestos management program Identify the applicable regulatory requirements Have survey records that identify where asbestos is located in the building and on the site so that the asbestos present can be addressed appropriately in the ongoing asbestos management program

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16 Indoor Environmental Quality Credit 1-Outdoor Air Delivery Monitoring Intent: Provide capacity for ventilation system monitoring to help sustain long-term occupant comfort and wellbeing. Requirements: Install permanent monitoring systems that provide feedback on ventilation system performance to ensure that ventilation systems maintain minimum ventilation rates. Option A For mechanical ventilation that serve densely occupied spaces (density >/= 40 SF/Person): CO2 sensor or sampling location for each space, and compare with OA ambient CO2 concentrations Test and calibrate CO2 sensors for accuracy of at least 75 PPM or 5% of reading Monitor CO2 sensors w/ trend system (at least 30 min intervals) Configure system to generate an alarm Possibly use CO2 sensors for demand-controlled ventilation

17 Indoor Environmental Quality Credit 1-Outdoor Air Delivery Monitoring Intent: Provide capacity for ventilation system monitoring to help sustain long-term occupant comfort and wellbeing. CONTINUED Requirements: Install permanent monitoring systems that provide feedback on ventilation system performance to ensure that ventilation systems maintain minimum ventilation rates. Option B For all other mechanical ventilation systems: Outdoor airflow measurement device must be provided capable of measuring min OA flow rate at all spaces w/in 15% of design minimum Monitor OA flow device by control system that can trend (at least 15 minute intervals for 6 months) Configure control system to generate an alarm

18 Co2 and Temperature trend

19 Indoor Environmental Quality Credit 3-Construction IAQ Management Plan Intent: Prevent indoor air quality problems resulting from any construction/renovation projects in order to help sustain the comfort and well-being of construction workers and building occupants. Requirements: Develop and implement an IAQ Management Plan for the construction & occupancy phases of the building: During construction meet or exceed the recommended Control Measures of the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) IAQ Guidelines for Occupied Buildings under Construction, 1995, Chapter 3. Protect stored on-site or installed absorptive materials from moisture damage. If permanently installed air handlers are used during construction, filtration media with a Minimum Efficiency Reporting Value (MERV) of 8 shall be used at each return air grille, as determined by ASHRAE Replace all filtration media immediately prior to occupancy.

20 24x24x2 MERV13

21 MV75RP

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23 CONTINUED Indoor Environmental Quality Credit 3-Construction IAQ Management Plan Intent: Prevent indoor air quality problems resulting from any construction/renovation projects in order to help sustain the comfort and well-being of construction workers and building occupants. Requirements: Replace all filtration media immediately prior to occupancy. Remove contaminants that may be remaining at the end of the construction period: Conduct a minimum 2-week building flush-out with new filtration media with 100% OA after construction ends and prior to occupancy of the affected space. After flush-out, replace the filtration media with new media, except for filters solely processing OA. OR After construction ends conduct a baseline IAQ testing procedure for the affected space in the building that demonstrates concentration levels of chemical air contaminants are below specified levels (see reference guide for further details).

24 CONTINUED Indoor Environmental Quality Credit 3-Construction IAQ Management Plan Intent: Prevent indoor air quality problems resulting from any construction/renovation projects in order to help sustain the comfort and well-being of construction workers and building occupants. Chemical Contaminant Max Concentration Formaldehyde Particulates (PM10) Total VOC (TVOC) 4-Phenylcyclohexene (4- PCH) Carbon Monoxide (CO) 0.25 ppm 20 micrograms/m2 > OA 500 micrograms/m2 3 mocrograms/m2 9 ppm

25 IAQ construction activities 2004 H Area isolated with plastic and a negative air fan during demo. Return air sealed off. Supply air reduced. 10/12/04 Carpet, paint, Hayworth panels, ceiling tiles in place. MERV 13 filters installed in returns and outside air dampers for S-8 100% open for two weeks. 10/26/04 S-8 O.A. dampers released from 100% open to automatic control. 10/28/04 removed Merv 13 filters from returns. R3208- Area isolated with plastic and negative air fan during demo. Tacky mat placed at entry/exit H1193A Area isolated negative air fan during demo. Supply air reduced. Return sealed. Tacky floor mats at entry/exit to prevent tracking dust. H1765 Area isolated with plastic and a negative air fan during demo. H1110 H /11/04 Area isolated with plastic, returns sealed. Negative air fan operating, supply air reduced. Tacky mats at entry/exits

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27 HAYDEN FILTER SCHEDULE JAN FEB MAR APR JUN JUL AUG SEP OCT S2-FH2 (2yr) 08 Viledon T60 S3-FH3 (2yr) 08 Viledon T60 S4-FH4 (2yr) 08 Viledon T60 S5-FH5 (2yr) 08 Viledon T60 S6-FH6 (2yr) 07 S7-FH7 (2yr) 08 Viledon T60 S8-FH8 (2yr) 08 Viledon T60 S9-FH9 (2yr) 08 Viledon T60 UNIT MAY NOV DEC Viledon T60

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29 Indoor Environmental Quality Credit 9-Contemporary IAQ Practice Intent: Enhance IAQ performance by optimizing practices to prevent the development of indoor air quality problems in building correcting indoor air quality problems when they occur and, maintaining the wellbeing of the occupants. Requirements: Develop and implement on an ongoing basis an IAQ management program for buildings based on the EPA document Building Air Quality: A Guide for Building Owners and Facility Managers, EPA Reference Number 402-F , December 1991, which is available on the EPA website,

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34 9 Indoor Environmental Quality Possible Points: 18 Y Prereq 1 Minimum IAQ Performance Y Prereq 2 Environmental Tobacco Smoke (ETS) Control Y Prereq 3 Asbestos Removal or Encapsulation 1 Credit 1 Carbon Dioxide (CO2 ) Monitoring 1 1 Credit 2 Increase Ventilation Effectiveness 1 1 Credit 3 Construction IAQ Management Plan 1 1 Credit 5.1 Green Housekeeping, Entryway Systems 1 1 Credit 5.2 Green Housekeeping, Mixing Areas 1 1 Credit 5.5 Green Housekeeping, Low Env. Impact Disposable Products 1 1 Credit 5.6 Green Housekeeping, Low Env. Impact Pest Management Policy 1 1 Credit 5.7 Green Housekeeping, Outdoor Chemical Storage 1 1 Credit 9 Contemporary IAQ Practice, ASHRAE

35 6 Indoor Environmental Quality Possible Points: 18 Y Prereq 1 Minimum IAQ Performance Y Prereq 2 Environmental Tobacco Smoke (ETS) Control Y Prereq 3 Asbestos Removal or Encapsulation 1 Credit 1 Carbon Dioxide (CO2 ) Monitoring 1 1 Credit 2 Increase Ventilation Effectiveness 1 1 Credit 3 Construction IAQ Management Plan 1 Credit 4 Not included 0 Credit 5.1 Green Housekeeping, Entryway Systems 1 Credit 5.2 Green Housekeeping, Mixing Areas 1 Credit 5.3 Green Housekeeping, High Volume Copying 1 Credit 5.4 Green Housekeeping, Low-Impact Cleaning and Housekeeping 1 1 Credit 5.5 Green Housekeeping, Low Env. Impact Disposable Products 1 1 Credit 5.6 Green Housekeeping, Low Env. Impact Pest Management Policy 1 1 Credit 5.7 Green Housekeeping, Outdoor Chemical Storage 1 Credit 6.1 Controllability of Systems, 45% of Occupied Areas 1 Credit 6.2 Controllability of Systems, 90% of Occupied Areas 1 Credit 7.1 Thermal Comfort, Compliance with ASHRAE Credit 7.2 Thermal Comfort, Permanent Monitoring System 1 Credit 8.1 Daylight & Views, Views for 40% of Total Building Area 1 Credit 8.2 Daylight & Views, Views for 80% of Total Building Area 1 Credit 8.3 Daylight & Views, Daylight for 65% of Total Building Area 1 1 Credit 9 Contemporary IAQ Practice, ASHRAE

36 Conclusion GD achieved LEED EB certification by earning a total of 32 out of a possible 85 points. IAQ Management plan for construction and occupancy phases. Protect HVAC and adjoining areas from particulates and contaminates. Maintain minimum O.A. & Exhaust ventilation.

37 Conclusion Cont. Monitor/Measure/Document to ensure adequate performance. Maintain Mechanical Systems Utilizing CMMS. Maintain Asbestos Program. Incorporate BIM (Building Information Modeling)