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The code language for Alterations uses the phrase "Alterations shall be such that the existing building or structure is no less complying with the provisions of this code than the existing building or structure was prior to the alteration." (Ref: 2012 IBC 3404.1). Same language is used (moved to) in IEBC under Section 503.1.
The commentary is not clear about this phrase so I'm curious if it is stating that if an existing building wasn't built to code at the time of its permit or CofO then it would be permitted to remain and not be required to be brought up to the new code (same 903.2 requirements as code enforced for permit).
My concern is that a building required sprinklers at time of permit but none were installed. Not installing sprinklers for the intended alterations would technically be "no less complying". I feel like this statement (in quotes of first paragraph) could be a little more articulate or easier to decipher.
The commentary is not clear about this phrase so I'm curious if it is stating that if an existing building wasn't built to code at the time of its permit or CofO then it would be permitted to remain and not be required to be brought up to the new code (same 903.2 requirements as code enforced for permit).
My concern is that a building required sprinklers at time of permit but none were installed. Not installing sprinklers for the intended alterations would technically be "no less complying". I feel like this statement (in quotes of first paragraph) could be a little more articulate or easier to decipher.
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