To Flush or Not to Flush Compliance with LEED-NC ® 2.2 EQ 3.1 & 3.2 Tom Hanlon LEED AP, NEBB Cx

September 6, 2007 SUSTAINABILITY Meeting the needs of the present without compromising the ability of future generations to meet their own needs. Triple bottom line Long term measure of value Interdependence of: Economic Development/Success Social Responsibility/well-being Environmental Protection

September 6, 2007 The Five Main Categories of LEED ®

September 6, 2007 Benefits of Green Building Environmental benefits Reduce the impacts of natural resource consumption Economic benefits Improve the bottom line Health and safety benefits Enhance occupant comfort and health Community benefits Minimize strain on local infrastructures and improve quality of life

September 6, 2007 The ADEQ Building A 115,000 square foot office and lab building.

September 6, 2007 Indoor Environmental Quality Credits Point(s) Minimum IAQ PerformanceReqd Environmental Tobacco Smoke (ETS) ControlReqd Carbon Dioxide (CO2) Monitoring1 Ventilation Effectiveness1 Construction IAQ Management Plan2 Low-Emitting Materials4 Indoor Chemical & Pollutant Source Control1 Controllability of Systems2 Thermal Comfort2 Daylight & Views2

September 6, 2007 Indoor Environmental Quality Credit 3.1 Construction IAQ Management Plan - During Construction EQ Credit 3.1 Required Submittals Include: 1. Signed Letter Template LEED Online Letter Template verifying compliance and declaring to the USGBC that an Indoor Air Quality (IAQ) Management Plan has been developed and implemented to meet the Control Measures of the Sheet Metal and Air Conditioning Contractors National Association (SMACNA) IAQ Guidelines for Occupied Buildings under Construction, 1995, Chapter 3 during the construction and pre-occupancy phases of the building. 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 grille, as determined by ASHRAE Replace all filtration media immediately prior to occupancy. 2. SMACNA Approach Narrative Documentation. 3. Brief Description Documentation. 4. Photo Documentation

September 6, 2007 Protect the ductwork & equipment prior to installation.

September 6, 2007 Protect the ductwork & equipment during installation.

September 6, 2007 Protect the ductwork & equipment during installation

September 6, 2007 Install MERV 8 filtering at all return air openings and at operating equipment.

September 6, 2007 Indoor Environmental Quality Credit 3.2 Construction IAQ Management Plan - Before Occupancy EQ Credit 3.2 Required Submittals Include: 1. Signed Letter Template LEED Online Letter Template verifying compliance with one of two available options and declaring to the USGBC that an IAQ plan has been developed and implemented for the pre-occupancy phase. Option 1: Flush-Out Option 2: Air Quality Testing See Options defined in following slides. 2. Flush-Out Procedures Documentation. 3. IAQ Testing Protocol Documentation.

September 6, 2007 Indoor Environmental Quality Construction IAQ Management Plan EQ3.2 EQ Credit 3.2: Option 1A 1. Signed Letter Template LEED Online Letter Template verifying compliance and declaring to the USGBC that the project is fully compliant with Option 1-Flush-out. OPTION 1A After construction and prior to occupancy perform a building flush-out by supplying 14,000 CF of Outside Air per sq ft of building area while maintaining 60f and 60% RH in the building. 2. Document and submit procedure.

September 6, 2007 Indoor Environmental Quality Construction IAQ Management Plan EQ3.2 EQ Credit 3.2: Option 1B 1. Signed Letter Template LEED Online Letter Template verifying compliance and declaring to the USGBC that the project is fully compliant with Option 1-Flush-out. OPTION 1B If occupancy is desired before completion, deliver 3500 CFM / sq ft before occupancy, then after occupancy flush the building continuously with.30 CFM / sq ft until the prescribed 14,000 CFM / sq ft is achieved. Continuously is defined as 24 hour operation until flush is complete. (Operational issues ??). 2. Document and submit procedure.

September 6, 2007 Indoor Environmental Quality Construction IAQ Management Plan EQ3.2 EQ Credit 3.2: Option 2 1. Signed Letter Template LEED Online Letter Template verifying compliance and declaring to the USGBC that the project is fully compliant with US Environmental Protection Agency Compendium of Methods for the Determination of Air Pollution in Indoor Air and as detailed in the LEED Reference Guide. Testing to be conducted prior to occupancy. Building to have all interior finishes complete. Sampling location served by separate ventilation systems the number of sampling points shall not be less than one per 25,000 sq ft or for each contiguous area. Document results and submit.

September 6, 2007 The ADEQ Building Building total area. 115,237 square feet. Office area. 103,024 square feet, served by two roof mounted air handlers with a combined outside air capacity of 14.5K CFM. Lab area. 12,213 square feet, served by a separate Energy Recovery Unit (ERU) capable of 14K CFM outside air. So what do we do??? Cant flush the office tower. Not enough outside air. Would take 75 days. Cant partially flush, then flush at off hours after occupancy as per option 1B. Cant meet the.30 CFM / sq.ft. Have to test the office tower.

September 6, 2007 The ADEQ Building The Test Requirements Formaldehyde: < 50 parts per billion Particulates (PM10): <50 micrograms per cu/meter Volatile Organic Compounds: <500 micrograms per cu/meter 4-Phenylcyclohexene (4-PCH): <6.5 micrograms per cu/meter Carbon Monoxide (CO): <9 part per million and no greater than 2 parts per million above outdoor levels. (4-PCH) not required if carpets and fabrics with styrene butadiene rubber (SBR) latex backing are not used.

September 6, 2007 The ADEQ Building

September 6, 2007 The ADEQ Building

September 6, 2007 The ADEQ Building How about the Lab Area?? Since the Lab area is somewhat seperated from the office tower we treated it as a separate building and system. The Lab has a dedicated single pass ERU with enough capacity (outside air CFM) to flush the space to the Option 1 standard. Accomplished in 7+ days.

September 6, 2007 The ADEQ Building

September 6, 2007 The ADEQ Building How did we do!! Got the Lab Flushed, no problem. Flushed the Tower all we could during the period between construction and occupancy. Then just before occupancy tested to the LEED test criteria. Result: Passed all sections except the particulate. Why fail the particulate, thats the easy part. Cleaning crews in the building, preparing for occupancy. Changed the filtration in the HVAC systems and retested.

September 6, 2007 The ADEQ Building EQ lessons learned!! Plan the IAQ activities well in advance. Get the plan in front of everybody early and talk about it often. Visit the site often to insure compliance. If contractors not complying bring it up quickly. When the tests begin, watch the building for folks that dont understand the process. Keep control of the site!!! Document,Document,Document. Photos, Photos, Photos. No substitute.

September 6, 2007 Sustainable Buildings Thanks