EPG: Chapter 10 - Indoor Environmental Quality Flashcards
LEED Green Associate Exam Preparation Guide LEED v4 Edition - Key Terms and Concepts in Chapter
ANSI/BIFMA e3-2011
a furniture sustainability standard developed by a joint committee of stakeholders using a consensus process described by the ANSI.
ASHRAE 55-2010
a standard that defines the range of indoor thermal environmental conditions acceptable to a majority of occupants
ASHRAE 62.1-2010
a standard that specifies min ventilation rates and other measures intended to provide indoor air quality that is acceptable to human occupants and that minimizes adverse health effects.
bake-out
a process used to remove airborne contaminants from a building caused by the off-gassing of building materials by increasing the temperature in the building before it is occupied
carbon dioxide concentration
measurement of indoor air quality that determines the safety of a space for human occupancy depending on whether carbon dioxide concentrations greater than 530 ppm above outdoor air quality are present.
CIBSE AM10
the Chartered Institution of Building Services Engineers (CIBSE) Applications Manual AM10 is a standard that defines the process for natural ventilation in non-domestic buildings.
circadian rhythms
the natural pattern of phusiological and behavioral processes that are timed to a near 24-hour period
contaminant
an airborne particle that has qualities that would adversely affect human health should it be inhaled
cubit feet per minute (cfm)
the measurement used to determine airflow rates
flush-out
a process used to remove airborne contaminants from a building caused by the off-gassing by flushing out all the interior air several times with outdoor air.
Greenguard Certification
a program that gives assurance that products designed for use in indoor spaces meet strict chemical emissions limits, which contributes to the creation of healthier interiors and gives credence to manufacturers’ sustainability claims with empirical scientific data from an unbiased, third-party organization.
minimum efficiency reporting value (MERV)
a rating system that ranges from 1 to 16 for filters made for a mechanical building ventilation system that filters particulates and airborne contaminants out of the air.
occupant comfort survey
a survey distributed to building occupants to determine their comfort level with building temperature, airflow, acoustics, and lighting.
off-gassing
the emittance of VOCs from building elements
sick building syndrome (SBS)
a series of symptoms connected with the phenomenon of building occupants feeling sick when they are in a building and recovering they leave the building
ventilation rate
the amount of air circulated through an indoor air space measured by air changes per hour as set by the ASHRAE 62.1-2010 baseline.
volatile organic compounds (VOCs)
organic chemical compounds that are emitted as gases from certain solids or liquids that evaporate under normal indoor atmospheric conditions for temperature and pressure and may have short and long-term adverse health effects.
What are the units of measuring ventilation?
cubic feet per minute (cfm)
The higher the ventilation rate in a building, the ____ the indoor air will be. Before outside air is introduced into a building, it is cleaned by a ____ in the HVAC system.
cleaner
filter
What is BASE (Building Assessment Survey and Evaluation)?
It is the largest US study of building characteristics and occupant symptoms done by the EPA. It studies 100 representative office buildings.
What is generally the minimum cfm per person required per US building codes?
15 to 20 cfm per person (in offices)
EQ Prerequisite - Minimum IAQ Performance sets minimum requirements for ventilation and monitoring as prescribed in _____.
ASHRAE 62.1-2010
EQ Credit - Enhanced IAQ Strategies can be me through mechanical, natural, or mixed-mode forms of ventilation. Which type do many LEED-certified buildings employ?
mixed-mode ventilation
allows flexibility to use natural ventilation when the weather is nice, and when the windows are closed, sensors tell the mechanical system to ventilate.
EQ Prerequisite - Environmental Tobacco Smoke Control requires teams to ____ or ____ the exposure of occupants to tobacco smoke. Smoking should only be allowed _____ in designated smoking areas locate at least ____ feet from all entries, outdoor air intakes, and operable windows.
prevent or minimize
outside
25 (feet)
EQ Credit - Enhanced IAQ Strategies
Entryway systems - Install permanent entryway systems at least ____ feet long in the primary direction of travel.
10 (feet)
EQ Credit - Enhanced IAQ Strategies
Increase ventilation - Increase outdoor air ventilation rates to all occupied spaces by at least ___% above minimum rates as determined in EQ Prerequisite - Minimum IAQ Performance. (ASHRAE 62.1-2010)
30%
EQ Credit - Enhanced IAQ Strategies
Exhaust - Sufficienty exhaust and _____ each space where hazardous chemicals may be present or used.
Filtraton - Each ventilation system that supplies outdoor air to occupied spaces must have ____ or air-cleaning devices that meet filtration requirements such as having a MERV ____ rating.
isolate
particle filters
13 (rating)
Filters with a MERV ____ rating or better are required by LEED projects for EQ Credit - Enhanced IAQ Strategies.
13 (rating)
EQ Credit - Enhanced IAQ Strategies
Carbon dioxide monitoring - Monitor CO2 concentrations within all ____ occupied spaces.
densely
EQ Credit - Enhanced IAQ Strategies
Naturally ventilated spaces - Follow _____, (standard for natural ventilation in non-domestic buildings) on how to direct airflow in naturally ventilated buildings.
CIBSE AM10
What are low-emitting materials?
building materials that emit low concentrations of volatile organic compounds (VOC).
EQ Credit - Low-Emitting Materials points are earned by using materials that do not exceed the threshold of VOCs for product categories listed in the ____ rating system.
LEED BD+C (reference guide)
Each product category listed has different thresholds for compliance.
EQ Credit - Construction IAQ Management Plan requires project team to create an IAQ management plant for the ____ and ____ phases of the building.
construction and preoccupancy`
SMACNA
Sheet Metal and Air Conditioning Contractors’ National Association.
IAQ guidelines for occupied buildings that state recommended control measures, handling of special equipment, etc during construction.
The IAQ management plan includes the _____ of absorptive materials from moisture to prevent mold and mildew.
covering
ie for wood and drywall
EQ Credit - IAQ Assessment intent is to establish higher-quality indoor air in the building ____ construction and _____ occupancy. Points are awarded for either doing a _____ of the building before or during occupancy or by testing the ___ quality before occupancy.
after
during
flush-out
air
For the LEED O+M rating system, there is a EQ Prerequisite - Green Cleaning Policy. What is the intent of this prerequisite?
- to create a cleaning policy that reduces the levels of chemical, biological, and particulate contaminants
- reduce environmental effects of cleaning products
What is APPA?
not the korean one
Association of Physical Plant Administrators
They create Leadership in Educational Facilities’ Custodial Staffing Guidelines and have standards for annual audits for managing green cleaning products.
One of the intents of the EQ category is to provide teams opportunities to improve interior _____ and maintain occupants’ _____ rhythms.
lighting / circadian
EQ Credit - Daylight requires the project to meet set daylight ___ and provide _____ control devices.
levels / glare
EQ Credit - Interior Lighting has 2 options:
- Provide three lighting levels for at least ____% of individual occupant spaces.
- Meet several levels of lighting quality established by ____ standards.
90%
nationally-recognized
note: you can apply for either one of the two options and get one point or apply for both and receive 2 points.
EQ Credit - Acoustic Performance requires projects to meet requirements set forth in the rating system for all _____ spaces. What are some examples of strategies to improve acoustic performance?
occupied (spaces)
Examples: minimize HVAC background noise, sound isolation, reverberation time, and sound reinforcement and masking.
The EQ Credit - Thermal Comfort has two categories. One is thermal comfort ____ and the other thermal comfort _____.
design / control
EQ Credit - Thermal Comfort’s design category means the building’s HVAC systems must follow which standards?
ASHRAE 55-2010
EQ Credit - Thermal Comfort’s control category requires individual thermal comfort controls for at least _____% of individual occupant spaces and to provide _____ thermal comfort controls for all shared multioccupant spaces.
50%
group
EQ Credit - Quality Views require projects to achieve a ____ line of sight to the outdoors via vision glazing for ___% of all regularly occupied floor area.
direct
75%
note: glazing must be unobstructed by frits, patterned glazing, or tints that distort color balance.
