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Hi All, What is the normal requrirements for using scissor stairs used in tall buildings before they are accepted and approved as two independent escape routes? Thanks in advance.

Hi All, What is the normal requrirements for using scissor stairs used in tall buildings before they are accepted and approved as two independent escape routes? Thanks in advance.

Thanks stookeyfpe, I agree and see many of your points stated. I have some comments to your thoughts: When you say ..."and limit the exit travel distance". What do you mean by that - and how do you calculate it what is the maximum number? I think I have a clue but I am not sure. E.g. Is the...

Thanks Stookeyfpe - this i clear and I agree with you. I am just looking for a short second opinion: Design basic information for the tall buildings are * Each level approx. 625 m2 (gross area) * Only residentials on each level (5-6 apartments * Heights of buidlings: 80-120my * Fireman...

Can anyone give clear picture of the fire requirements for tall Buildings after NFPA or IBC? In UK and Denmark you allowed to build a single escape stairs for residential buildings but only if the stairs is a safe stair i.e. a pressurized stair. For all other occupancies two escape routes need...