I am little confused on Addendum and ASI. When do we start to use revision and revision cloud? Does it start when drawing is submitted to City for permit and get feedback from the city? I just don’t understand the whole process. It would be great if you can help me understand the process of this.
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Hi @theresaninh69, thanks for your question!
Both addenda and ASIs are revisions made to the contract documents, which then become part of the contract documents. The main difference is that addenda are issued prior to the execution of the construction contract and ASIs are issued after execution of the construction contract.
Addenda are typically issued during the bidding phase, which modifies or clarifies the bidding documents by additions, deletions, clarifications, or corrections; all of which may or may not have an impact on the contract sum or time. For example: a bidder has a question what materials are desired for a design component, so the architect issues an addendum in response.
Architect’s supplemental instructions (ASI) are for minor changes in the work during the construction phase, which do not have an impact on the contract sum or time. For example: the owner wishes to change the paint color of a wall prior to paint being ordered, so the architect issues an ASI to change this.
Generally, revision clouds are used after a drawing set is issued. To your point, this is typically after the drawings are submitted to the authority having jurisdiction (AHJ) for review; but could be after the drawings are issued to the owner as a “final set,” or to prospective bidders. The intent of drawing revisions/clouds are to indicate that something has changed from the “original” drawing set.
Check out the Architect’s Handbook for Professional Practice (sections 10.6 - 10.9) for more information about these topics.
Hope this helps!
Kiara Galicinao, AIA, NCARB
Black Spectacles
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