Entry and Ventilation

COURSE: FIREFIGHTER PRE-BASIC SESSION REFERENCE: 7 TOPIC: ENTRY AND VENTILATION TIME REQUIRED: THREE HOURS MATERIALS: ACQUIRED STRUCTURE OR FORCIBLE ENTRY PROPS, VARIOUS HAND AND POWER TOOLS REFERENCES: ESSENTIALS OF FIRE...


          2) If lock can be seen, drive pry tool between door and frame and force open

          3) If hinges exposed, pull hinge pins or drive tool between hinge and door facing

          4) Doors with neither lock nor hinges exposed cannot be forced with standard tools

          5) Doors may be secured with a steel bar or fox lock

          6) Door that cannot be forced can be cut open with power saw

          7) Heavy steel door can be opened with battering ram

      b. Lighted doors

          1) In many older buildings, rear doors made of wood or light metal, reinforced with bars or fitted

              with several locks

          2) Main lock should be forced first

          3) Additional bolts or clocks can usually be forced with hand tools

          4) If door has glass pane without bars, best to remove glass and attempt to open lock from

              inside

  3. Dwellings and apartments

      a. Locked residential structures more easily entered than commercial structures

          1) Front and rear doors usually same type and of light construction

          2) Often have one or more glass panes

          3) Multiple-unit street doors at front often unlocked

          4) Lobby door may be secured by electric lock

     b. Apartment doors

         1) Might have to open individual doors

         2) In older buildings, doors made of wood - cylinder locks may have been added

         3) Frames of doors usually strong enough to support pry tool

         4) In modern buildings, doors made of steel or wood covered with steel - secured with cylinder

             locks and possibly one or more bolt-type locks

         5) If door frame constructed of light metal, might not support pry tool

     c. Balcony doors

         1) Sliding glass with cylinder locks or some bolting arrangement holding at top and bottom

         2) Bolts should be forced with available tools

         3) If door particularly tough to force, drive pry tool between door and framing

         4) Two doors locked to each other can also be opened by driving pry tool between doors

         5) Avoid straining glass enough to break it

         6) Break glass for entry only for immediate rescue or when glass already stained or damaged by

             heat or smoke

         7) When bar or rod holds sliding section, glass will have to be broken

  4. Office buildings

      a. Presents same problems as apartment house units

      b. Age of building determines type of inside office door, unless remodeled extensively

      c. Most buildings open to street during day

      d. Outside entrances usually similar to those found in stores of same general age

  5. Other occupancies

      a. Warehouses and factories

          1) Usually have roll-up doors at loading platforms and heavy wooden or steel pedestrian doors

          2) Windows on lower floors may be barred

          3) Usually surrounded by chain-link fences - may require forcing padlock

          4) Some occupancies protected at night by guard dogs

      b. Combination occupancies - may present double entry problem with forcing first into building and

           then into individual units

B. Entry Through Windows

  1. Double-hung windows

      a. Window that allows simplest and quickest access to building

          1) Forced by prying up bottom section at center of window

          2) If top section made of small panes, pane nearest lock can be removed and window unlocked

      b. If it must be used for entry and cannot be forced quickly, it should be completed knocked out

          1) If at ground level, use axe or other appropriate tool

          2) Above ground situations may be not be discovered until window is reached