“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/SuccessSocial Responsibility/well-beingEnvironmental 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 BuildingA 115,000 square foot office and lab building.

September 6, 2007

Indoor Environmental Quality

Credits Point(s) Minimum IAQ Performance Req’d Environmental Tobacco Smoke (ETS) Control Req’d Carbon Dioxide (CO2) Monitoring 1 Ventilation Effectiveness 1 Construction IAQ Management Plan 2 Low-Emitting Materials 4 Indoor Chemical & Pollutant Source Control 1 Controllability of Systems 2 Thermal Comfort 2 Daylight & Views 2

September 6, 2007

Indoor Environmental Quality Credit 3.1Construction 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 52.2-1999.

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 3.2Construction 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 QualityConstruction IAQ Management Plan EQ3.2

EQ Credit 3.2: Option 1A1. 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 QualityConstruction IAQ Management Plan EQ3.2

EQ Credit 3.2: Option 1B1. 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 QualityConstruction IAQ Management Plan EQ3.2

EQ Credit 3.2: Option 21. 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??? Can’t flush the office tower. Not enough outside air. Would

take 75 days. Can’t partially flush, then flush at off hours after

occupancy as per option 1B. Can’t 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, that’s 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

don’t understand the process. Keep control of the site!!!

Document,Document,Document. Photos, Photos, Photos. No substitute.

September 6, 2007

“Sustainable Buildings”

Thanks