Calculations: Comfort

Feature 73 Ergonomics: Visual and Physical

  • All computer screens should be adjustable (height and distance)
  • 30% of desks should be adjustable (height)
    • Alternative: desktop adjustable stands or pairs of sit and stand desks
  • All seats should be adjustable (height and depth)

 

Feature 80 Sound Reducing Surfaces

  • Part 1: Ceilings
    • Open offices:  minimum NRC = 0.9 for entire ceiling
    • Conference and teleconference rooms:  minimum NRC = 0.8 for 50% of ceiling
  • Part 2: Walls:
    • For all walls and partitions, need to have minimum NRC = 0.8 for the following areas:
      • Open offices: 25% wall area
      • Private offices, conference and teleconference rooms: 25% wall area
      • Cubicles: Entire partition
        • Also, minimum partition height: 4 ft. (1.2 m)

 

Feature 82 Individual Thermal Comfort

  • Thresholds for applying feature:
    1. Workspaces over 2150 sq. ft (200 sq. m.), need to:
      • Create a thermal gradient of at least 5 degrees F (3 degrees C)
      • 50% of workspaces are free address (occupants can chose where to work)
    2. More than 10 workstations in the same zone
      • Need to provide personal thermal comfort devices

 

Feature 83 Radiant Thermal Comfort

  • Part 1: Lobbies and Other Common Public Spaces
    • Satisfy ASHRAE 55-2013 (Thermal Comfort standard) using a radiant (hydronic or electric) system
    • Applies to all lobbies and public spaces
  • Part 2: Offices and Other Regularly Occupied Spaces
    • Satisfy ASHRAE 55-2013 (Thermal Comfort standard) using a radiant (hydronic or electric) system
    • Applies to 50% of offices and regularly-occupied spaces

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