Recommended Practice: Lighting Office Spaces

CONTENTS

• 1.0 Introduction and Scope
• 1.1 Introduction
• 1.2 Scope
• 2.0 Principles of Quality Lighting, Color, Flicker, and Modeling
• 2.1 Principles of Quality Lighting
  2.1.1 Lighting and Organizational Productivity
• 2.2 Color
  2.2.1 Color Temperature and Correlated Color Temperature, or CCT
  2.2.2 Color Rendering
• 2.3 Flicker
• 2.4 Modeling
• 3.0 Sustainability, Maintenance, and Lighting Control Systems
• 3.1 Sustainability
• 3.2 Maintenance
• 3.3 Lighting Control Systems
  3.3.1 Switching and Dimming
  3.3.2 Manual Controls
  3.3.3 Automatic Controls
• 4.0 Illuminance, Luminance, and Glare
• 4.1 Illuminance
  4.1.1 Quantity of Illumination
  4.1.2 Individual Preference
  4.1.3 Uniformity
• 4.2 Luminance
  4.2.1 Room Surface Luminances
  4.2.2 Luminance Variability
  4.2.3 Directing Attention
  4.2.4 Luminance Targets
• 4.3 Glare
  4.3.1 Discomfort Glare
  4.3.2 Disability Glare and Veiling Reflections
  4.3.3 Limiting Glare from a Direct Lighting System
  4.3.4 Limiting Glare from an Indirect Lighting System
  4.3.5 Limiting Glare from a Direct/lndirect Lighting System
• 5.0 Light Sources and Luminaires
• 5.1 Daylight
  5.1.1 Daylight and Windows
  5.1.2 Daylight Integration and Controls
• 5.2 Electric Light Sources
  5.2.1 Solid State Lighting: LED and OLED
  5.2.2 Fluorescent
  5.2.3 Metal Halide
  5.2.4 Incandescent (and Other Filament Source Types)
• 5.3 Luminaires
  5.3.1 Lighting System Efficiency
  5.3.2 Luminaire Types: Application Considerations
  5.3.3 Ambient Lighting
  5.3.4 Furniture-Based Task Lighting
  5.3.5 Accent Lighting
  5.3.6 Daylight Luminaires
• 6.0 Design Considerations for Specific Areas
• 6.1 Open-Plan Offices
  6.1.1 Computer Screen Considerations
  6.1.2 General Considerations
  6.1.3 Flexibility
  6.1.4 Wayfinding
• 6.2 Private Offices
• 6.3 Conference and Meeting Rooms
• 6.4 Videoconference Rooms
• 6.5 Computer-Aided Drafting (CAD)
• 6.6 File Rooms and Libraries
• 6.7 Remote Offices
  6.7.1 Tasks Requiring Visual Performance in the Remote Office
  6.7.2 Home Videoconferencing
  6.7.3 Windows
• 6.8 Restrooms
• 6.9 Public Areas
  6.9.1 Entrance Lobbies
  6.9.2 Reception Areas
  6.9.3 Corridors
  6.9.4 Elevator and Escalator Lobbies
  6.9.5 Elevators
  6.9.6 Stairways
  6.9.7 Atria
• 6.10 Support Spaces
  6.10.1 Break Rooms
  6.10.2 Copy Rooms
• 6.11 Lighting for Plants (Vegetation)
  6.11.1 Light Sources
  6.11.2 Commercial Application
• 6.12 Emergency Lighting
  6.12.1 Systems in Use
  6.12.2 Emergency Egress Lighting
• 6.13 Building Exterior
  6.13.1 Pedestrian Access
  6.13.2 Vehicular Access
  6.13.3 Exterior Spaces
  6.13.4 Building Identity
  6.13.5 Light Trespass and Light Pollution
• 7.0 Interactions With Other Building Performance Considerations
• 7.1 Thermal Energy Effects
• 7.2 Other Aspects of the Indoor Environment
• Annex A – Illuminance Recommendations
• Annex B – Research Notes
• Annex C – Introduction to the Principles of Acoustics
• References