Indoor Environmental Quality Credits

Question 1

EQ Prerequisite - Minimum Indoor Air Quality Performance

Answer 1

Project must meet the requirements of monitoring and ventilation for both mechanical and natural

Ventilation
Mechanically ventilated
-Option 1 - ASHRAE Standard 62.1-2010
-Option 2 - CEN standards EN 15251-2007 and EN 13779-2007

Naturally Ventilated
CIBSE AM10 to confirm it is an effective strategy
ASHRAE 62.1 natural ventilaton sections

All Spaces
the IAQ procedure defined in ASHRAE 62.1 must not be used to comply with EQ-P minimum indoor air quality performance

Monitoring
Mechanically ventilated
VAV must have direct outdoor air intake monitoring with a +/- 10% accuracy. Alarm installed if the airflow varies by more than 15%
Constant volume system must have a current transducer and balance outdoor air flow to minimum standard of ASHRAE 62.1

naturally ventilated
must do one of the following
direct exhaust airflow measurement device with +/- 10% accuracy. Alarm if airflow varies by 15%
alarmed openings for each naturally ventilated openings that alarms if closed during occupnacy hours.
CO2 monitors in breathing zone 3-6’. A visual or auditory alarm if more than 10% off setpoint

Question 2

EQ-P - Minimum Indoor Air Quality Performance (special cases)

Answer 2

Residential Projects
each unit must meet all of the following
*unvented combustion appliances are not allowed
*CO2 monitors on each floor of unit
*indoor fireplaces and wood stoves must have solid glass enclosures or sealing doors
*indoor fireplaces and woodstoves that arent closed combustion or power vented must pass a backdraft potential test to show less than 5 Pa depressurization of the combustion
*Projects in high risk radon areas must implement radon resistant construction for all dwelling units on levels 1-4 above grade

Core and Shell
must meet the ventilation and monitoring needs of anticipated future tenants

Healthcare
ASHRAE 170-2008 section 7
2010 FGI Guidelines

Datacenters
all occupied spaces must meet ventilation requirements

Warehouses and Distribution centers
both warehouse and distibution centers are occupied spaces that must meet ventilation requirements

Question 3

EQ-P Environmental Tobacco Smoke Control

Answer 3

smoking prohibit in building and outside within 25’ of entries, air intakes, operable windows
Smoking outside designated areas should be prohibited in any space used by business for business purposes
No smoking signs must be posted with 10’ of building

Schools
prohibited on site signage posted at property lines adjacent to entrances

residential
compartmentalization of smoke areas allowed. Confirmed with a blower door test RESNET, Energy Star multifamily testing, ASTM E779-03 or ASTM E1827-11
Maximum leakage of .23 cfm/ft2

Healthcare
compartmenalization is allowed in clinics that permit patients to smoke

Question 4

EQ-P - Minimum Acoustic Performance (Schools Only)

Answer 4

HVAC Background Noise
In core learning spaces not to exceed 40 dBa. ANSI S12.60-2010

Exterior Noise
Must be address in high noise sites (60 dBa).
Projects located within 1/2 mile of significant sound source are exempt

Reverberation time
Classrooms and learning spaces with volumes 20,000 ft3 or greater must meet RTdescribed in NRC-CNRC Construction Technology Update no. 51, or local equivalent
if less than 20,000ft3
Option 1 - the surface area of absorptive materials must exceed to SA of the total ceiling (excluding lights, diffusers, etc). Must have NRC of .7 or higher.
-Option 2 - Designed to meet ANSI S12.60-2010

Question 5

EQ-C - Enhanced Indoor Air Quality Strategies

Answer 5

-Option 1 - Enhanced IAQ Strategies 1pt
Mechanically Ventilated
*Entryways - 10 mat to catch debris
*Interior Cross contamination - exhaust rates from P or .5 Cfm per SF, negative pressure, self closing doors, floor to deck partitions or hard lid
*filtration - MERV 13, Class F7 by CEN EN 779-2002 - replace after construction before occupancy

Naturally Ventilated
*entryways
*natural ventilation calculations - CIBSE AM10

Mixed mode
*Entryways
*interior cross contamination prevention
*filtration
*natural ventilation calculations
*mixed mode calculations - CIBSE 13-2000

-Option 2 - Additional Enhanced IAQ Strategies, 1 pt
Mechanically Ventilated
*Exterior Contamination Prevention - computational fluid dynamic analysis - National Ambient Air Quality Standards
*Increase Ventilation - 30% above min from prereq
*Co2 Monitoring - in breathing zone of all densely occupied spaces, visual or auditory displays if 10% off set point, ASHRAE62.1
*Additional source control and monitoring - install monitoring system and alarms, plan for contamination

Naturally Ventilated
*Exterior contamination prevention -
*Additional Source control and monitoring
*natural ventilation room by room calculations - CIBSE AM10

Mixed Mode
*exterior contamination prevention
*Increased ventilation
*Additional source control and monitoring
*natural ventilation room by room calculations

Question 6

EQ-C - Low-Emitting Materials

Answer 6

-Option 1 - Product Category Calculations

-Option 2 - Budget Calculation Method
Six assemblies to be calculated
flooring
ceiling
walls
thermal and acoustic insualtion
furniture
exterior applied products (healthcare & Schools)

*50-70% compliant materials = 1pt
*70-90% compliant materials = 2pts
*over 90% compliant materials = 3pts