DOORs - PowerPoint PPT Presentation

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DOORs

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  1. Tactical Diagramming DOORs

  2. Characteristics of Doors • Doors are one of only two moveable components in a building • Doors are the primary means of escape from a building • Most highly regulated of any building component • Size, shape, hardware and which way they swing are mandated • Exit system must be displayed in certain buildings like schools, hospitals, hotels and motels • Exit system is oriented from inside to outside • Field expedient “compass”

  3. Residential Door Facts • Typical three-bedroom house will have seven to eleven interior doors • Must have at least two exit doors accessible from different parts of the house so that one fire cannot block both exits • Swinging door (hinged) most common, followed by pocket doors • Garages will have at least two doors • Vehicle (7' high—9' wide for one-car, 16' for two cars) • Pedestrian (entrance to house or exit to outside)

  4. Residential Doors Exterior 36"Interior 28-32" • Designed to allow access while screening visitors • All residential doors are about 80" (6'8") tall • Exterior doors are nearly all 36" (3') wide and 1-3/4" thick (solid core) • Interior doors vary between 28" and 32" and 1-3/8" thick (hollow core) 80"6'8"

  5. Doors are “appliances” • 36" door requires about14 square feet to open 180° • Hardware • Privacy Locks • Passage Locks • No door may cover a light switch • Light switch is nearly always near the doorway on the wall on knob side of the doorway • Breaking a door against the jamb takes approximately 50 times the force as against the latch!

  6. Exterior Doors—Business • Part of an exit system • Must be clearly marked • If occupancy load of ≥50 must: • All doors that are part of the system must swing toward the outside (Field expedient compass) • Be equipped with nonmanipulable handles(“panic locks”) 36-48" InsideOutside

  7. Exterior Doors—Residence • All houses require two exit doors • Front “entrance” door leaves (>95%=36 wide“) • Most are single doors, multiple doors look for: • Peephole & Doormat—identify moving leaf • Mail slot—in fixed leaf • Rear door may be hinged (~30-32"), but also French or Sliding Patio Doors 36-48"1-3/4" solid core InsideOutside

  8. Exploiting “Terrain ” • Interior doors swing into the roomand against walls • Exceptions (few) are verysmall rooms such as closets • Adjust stack from hinge side • Visually acquire >90% ofa typical room from thethreshold • Light switch on wall withdoor and same side asdoor handle but slightly higher

  9. Questions?