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IECC 2009&2012 - EXTERIOR

EXTERIOR LIGHTING ZONES

1 Developed areas of national parks, state parks, forest land, and rural areas.
2 Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use and residential mixed use areas.
3 All other areas
4 High-activity commercial districts in major metropolitan areas as designed by the local land use planning authority

Lighting Zones

Base Site Allowance (base allowance may be used in tradable or non-tradable surfaces) Zone 1 Zone 2 Zone 3 Zone 4
500 W 600 W 750 W 1300 W
Tradable Surfaces (Lighting power densities for uncovered parking areas, building grounds, building entrances and exits, canopies and overhangs, and outdoor sales areas may be traded.) Uncovered Parking Area
Parking areas and drives 0.04 W/ft² 0.06 W/ft² 0.10 W/ft² 0.13 W/ft²
Building Grounds
Walkways less than 10feet wide 0.7 W/linear foot 0.7 W/linear foot 0.8 W/linear foot 1.0 W/linear foot
Walkways 10 feet wide or greater, plaza areas special feature areas 0.14 W/ft² 0.14 W/ft² 0.16 W/ft² 0.2 W/ft²
Stairways 0.75 W/ft² 1.0 W/ft² 1.0 W/ft² 1.0 W/ft²
Pedestrian tunnels 0.15 W/ft² 0.15 W/ft² 0.2 W/ft² 0.3 W/ft²
Building Entrances and Exits
Main entries 20 W/linear foot of door width 20 W/linear foot of door width 30 W/linear foot of door width 30 W/linear foot of door width
Other doors 20 W/linear foot of door width 20 W/linear foot of door width 20 W/linear foot of door width 20 W/linear foot of door width
Entry canopies 0.25 W/ft² 0.25 W/ft² 0.4 W/ft² 0.4 W/ft²
Sales Canopies
Free-standing and attachted 0.6 W/ft² 0.6 W/ft² 0.8 W/ft² 1.0 W/ft²
Outside Sales
Free-standing and attachted 0.25 W/ft² 0.25 W/ft² 0.5 W/ft² 0.7 W/ft²
Street frontage for vehicle sales lot in addition to "open area" allowance No allowance 10 W/linear foot 10 W/linear foot 30 W/linear foot
Nontradable Surfaces (Lighting power density calculations for the following application can be used only for specific application and cannot be traded between surfaces or with other exterior lighting. The following allowances are in addition to any allowance otherwise permitted in the "Tradable Surfaces" section of this table.) Building facades No allowance 0.1 W/ft2 for each illumated wall or surface or 2.5 W/linear foot for each illuminated wall or surface length 0.15 W/ft2 for each illumated wall or surface or 3.75 W/linear foot for each illuminated wall or surface length 0.2 W/ft2 for each illumated wall or surface or 5.0 W/linear foot for each illuminated wall or surface length
Automated teller machines and night depositories 267 W per location plus 90 W per additional ATM per location 268 W per location plus 90 W per additional ATM per location 269 W per location plus 90 W per additional ATM per location 270 W per location plus 90 W per additional ATM per location
Entrances and gatehouse inspection stations at guarded facilities 0.75 W/ft² of covered and uncovered area 0.75 W/ft² of covered and uncovered area 0.75 W/ft² of covered and uncovered area 0.75 W/ft² of covered and uncovered area
Loading areas for law enforcement, fire, ambulance and other emergency service vehicles 0.5 w/ft² of covered and uncovered area 0.5 w/ft² of covered and uncovered area 0.5 w/ft² of covered and uncovered area 0.5 w/ft² of covered and uncovered area
Drive-up windows/doors 400 W per drive through 400 W per drive through 400 W per drive through 400 W per drive through
Parking near 24-hour retail entrances 800 W per main entry 800 W per main entry 800 W per main entry 800 W per main entry

LOGO_-_ALA_-_20151013Architectural Lighting Alliance

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Dallas Fax: 214.658.9002

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