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Section 309 Additions and Replacements of Exterior Wall Coverings and Exterior Wall Envelopes

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309.1 General
The provisions of Section 309  apply to all alterations, repairs, additions, relocations of structures and changes of occupancy regardless of compliance method.
309.2 Additions and Replacements
Where an exterior wall covering or exterior wall envelope is added or replaced, the materials and methods used shall comply with the requirements for new construction in Chapter 14 and Chapter 26 of the International Building Code if the added or replaced exterior wall covering or exterior wall envelope involves two or more contiguous stories and comprises more than 15 percent of the total wall area on any side of the building.

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106.2.4 Scope and Administration, Exterior Wall Envelope
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107.2.4 Scope and Administration, Exterior Wall Envelope
Construction documents for all buildings shall describe the exterior wall envelope in sufficient detail to determine compliance with this code. The ...
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Construction documents for all buildings shall describe the exterior wall envelope in sufficient detail to determine compliance with this code. The ...