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First you must know whats the porpose of this building
Second step you must estimate how many persons will visit this building at peak time,, for business and service building
3ed step you must know the area of your building

2006-08-14 08:43:13 · answer #1 · answered by source_of_love_69 3 · 0 0

In addition the the factors source_of_lo... listed, you need the specify what part of North America. The US and Canada have different laws. I'm not sure the laws are entirely consistent across the US.

2006-08-14 13:14:19 · answer #2 · answered by STEVEN F 7 · 0 0

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