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staircase pressurization

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    Open Staircases

    We have a unique situation on a part completed building that has not yet been approved by Civil Defence Fire authority here. The building is approx 141meters high over 37 floors and is residential occupancy. The main building is served by two staircases of correct width. The staircases are...
  2. N

    Stairwell Pressurization - Exit door to self close against 50Pa pressure differential across door?

    Hi, I would like clarification regarding whether if it is required by NFPA or IBC for the exit door to self close after it has been opened? The staircase pressurization fan would be running to maintain a pressure differential of 50Pa across the all the staircase door when they are all kept...
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