IBC 2015 Area Calcs

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Allison Burrell

November 06, 2018 02:28

I understand IBC 2015 when calculating for frontage increase etc with the new formulas. Does anyone know how the allowable area is calculated without any of the frontage increases? Say just a sprinklered building (or non-sprinklered building) for a particular construction type with no frontage increases?

Is the formula the same just with a 0 in place of the I f value?

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  Michael Klein November 07, 2018 04:13 (Edited November 07, 2018 04:19)

  Where there is no frontage increase, the value of I_f is taken as zero.

  So essentially you're just taking the number from table 506.2 as your allowable area.

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  Allison Burrell November 07, 2018 14:52

  Yes, got it. I was trying to make it more complicated than it is!

  Thanks

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  Brian Starkey November 11, 2018 19:01

  Yes..tabular is the “base” number. 

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