Cross Cutting Issues EXAMPLES OF SPACES THAT ARE TYPICALLY - - PDF document

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Cross – Cutting Issues

• FLOOR AREA CALCULATIONS AND FLOOR PLANS
• For many credits, compliance is based on the percentage of floor area that meets the credit

requirements

• In general, floor area and space categorization should be consistent across the EQ credits.
• Any excluded spaces or discrepancies in floor area values should be explained and

highlighted in the documentation.

• SPACE CATEGORIZATION
• EQ Category focuses on interaction between the occupants of the building and the indoor

spaces in which they spend their time.

• It is important to identify which spaces are used by the occupants, including visitors

(transients) and what activities are performed in each space.

• Depending on the space categorization, the credit requirements may or may not apply.
• OCCUPIED VERSUS UNOCCUPIED SPACE
• All spaces must be categorized as either occupied or unoccupied.
• Occupied spaces are enclosed areas intended for human activities.
• Unoccupied spaces are places intended primarily for other purposes; they are occupied
• nly occasionally and for short periods of time – inactive areas.

Cross – Cutting Issues

• EXAMPLES OF SPACES THAT ARE TYPICALLY

UNOCCUPIED:

• Mechanical and Electrical Rooms
• Egress stairway or dedicated emergency exit

corridor

• Closets in residence (walk in closet is occupied)
• Data center floor area, including raised floor area
• Inactive storage area in a warehouse or distribution

center

• For areas of equipment retrieval, the space is

unoccupied only if the retrieval is occasional.

Cross – Cutting Issues

• REGULARLY VERSUS NONREGULARLY OCCUPIED SPACES
• Based on duration of the occupancy.
• Regularly occupied spaces are enclosed areas where people

normally spend time, defined as more than one hour of continuous occupancy per person per day, on average; the

• ccupants may be seated or standing as they work, study, or

perform other activities.

• For spaces that are not used daily, the classification should

be based on the time a typical occupant spends in the space when it is use. i.e. Computer Workstation

• Non regularly occupied spaces are areas people pass

through or areas used an average of less than one hour per person per day.

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Mechanically ventilated spaces:

• A. entryway systems;
• B. interior cross-contamination prevention; and

C: filtration. Naturally ventilated spaces:

• A. entryway systems; and
• B. natural ventilation design calculations.

Mixed-mode systems

• A. entryway systems;
• B. interior cross-contamination prevention;

C: filtration;

• D. natural ventilation design calculations;
• E. mixed-mode design calculations.

Mechanically ventilated spaces (select 1):

• A. exterior contamination prevention;
• B. increased ventilation;
• C. carbon dioxide monitoring; or
• D. additional source control and monitoring.

Naturally ventilated spaces (select 1):

• A. exterior contamination prevention;
• B. additional source control and monitoring; or
• C. natural ventilation room by room calculations

Mixed-mode systems

• A. exterior contamination prevention;
• B. increased ventilation;
• C. additional source control and monitoring; or
• D. natural ventilation room by room calculations

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Additional Details

VOC content requirements for wet applied products-

• Paints and Coatings - California Air

Resources Board (CARB) 2007, Suggested control Measures or SCAQMD Rule 1113, effective June 3, 2011

• Adhesives and sealants-SCAQMD

Rule 1168, July 1, 2005

Additional Details

Healthcare and Schools only Additional Insulation requirements – Batt insulation products may contain no added formaldehyde Exterior applied products - CARB 2007 SCM for Architectural Coatings, and SCAQMD, Rule 1168, effective July 1, 2005

Additional Details

Inherently non-emitting sources-e.g. stone, ceramic, glass, concrete, clay brick, etc. General emissions evaluation – compliant with California Department of Health (CDPH)Standard Method v1.1-2010. Composite Wood Evaluation – CARB requirements for ultra-low- emitting formaldehyde (ULEF) Furniture evaluation –ANSI/BIFMA Standard Method e3-2011 Salvaged and reused material typically complies if older than one year

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IAQ Management Plan

• Protect stored and installed absorptive

materials from moisture damage

• Highlight the non smoking policy
• Indicate if air handler will be operated
• Specify MERV 8 filters on return air
• penings
• HVAC Protection
• Source Control
• Pathway interruption
• Housekeeping
• Replace Filters before occupancy

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Path 1 Additional Details

• Total air volume of 14,000 CF/SF
• Maintain an internal temp of >60

degrees and < 800 degrees F

• Relative Humidity < 60%

Path 2 Details

• Total air volume of 14,000 CF/SF
• At least 3,500 CF/SF before any occupancy
• Maintain same temp and humidity

requirements as path 1

• Maintain 0.3 CFM /CF or design minimum

per prerequisite whichever is greater

• Start flush at least 3 hours before occupancy

and continue through occupancy

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Option 2 Additional Details

• Demonstrate that contaminates do not exceed

concentration levels listed on next page

• Test after construction ends and before
• ccupancy
• Test per ventilation zone or at least 1 per floor
• Test area no larger than 5,000 SF (offices, retail,

schools, hospitality, and multi family. May use 50,000 SF for large spaces (Warehouses, Gyms, Ballrooms)

• May sample 1 in 7 identical locations.

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Option 2 Details

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Example Evaluate Thermal Comfort of Room http://comfort.cbe.berkeley.edu Thermal Comfort Control

• Provide individual thermal

comfort controls for at least 50%

• f individual occupant spaces
• Provide group thermal comfort

controls for all shared multi-

• ccupant spaces.

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Option 1 Requirements Lighting control must enable

• ccupants to adjust lighting lighting

to 3 different levels (on, off, midlevel)

• Midlevel between 30-70%

Option 2 Requirements Choose four of the following strategies.

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Option 2 Requirements

• A. For all regularly occupied spaces

use light fixtures with a luminance of less than 2,500 cd/m2 between 45 and 90 degrees from nadir

Option 2 Requirements

• B. Use light sources with CRI of 80
• r higher

Option 2 Requirements

• C. For at least 75% lighting, use

light sources that have rated life of at least 24,000 hours Option 2 Requirements

• D. Use direct-only overhead lighting

for 25% or less of the total connected lighting load for all regularly

• ccupied spaces.

Option 2 Requirements

• E. For at least 90% of the regularly
• ccupied floor area, meet or exceed the

following thresholds for area-weighted average surface reflectance: 85% for ceilings, 60% for walls, and 25% for floors

Option 2 Requirements

• F. Select furniture finishes to meet or

exceed the following thresholds for area-weighted average surface reflectance: 45% for work surfaces, and 50% for movable partitions

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Option 2 Requirements

• G. For 75% of regularly occupied

space, meet a ratio of average wall surface illuminance to average work plane illuminance that does not exceed 1:10.

Option 2 Requirements

• H. For 75% of regularly occupied

space, meet a ratio of average ceilling illuminance to work surface illuminance that does not exceed 1:10.

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Photo by Eric Laignel

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Illuminance Levels must be between 300 lux and 3000 lux with clear sky conditions

Option 3 Requirements

• Achieve illuminance levels between 300 lux and 3000

lux

• Measure at work plane height during any hour

between 9 am and 3 pm.

• For spaces larger than 150 square feet take

measurements on a maximum 10 foot square grid

• Measurements required at two separate times of the

year

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