Quote:
Originally Posted by StamperTV25
I am not concerned about the one inch....it is about the other connection points going up to the roof. We have built many homes and always did a pre-drywall inspection to verify things were done correctly and to code. These homes are released when they are completed.....so if found to be incorrectly installed.....it will need to be reinstalled.
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Per FL code:
M1502.4.2 Duct installation.
Exhaust ducts shall be supported at intervals not to exceed 12 feet (3658 mm) and shall be secured in place.
The insert end of the duct shall extend into the adjoining duct or fitting in the direction of airflow.
Exhaust duct joints shall be sealed in accordance with Section M1601.4.1. Ducts shall not be joined with screws or similar fasteners. Where dryer exhaust ducts are enclosed in wall or ceiling cavities, such cavities shall allow the installation of the duct without deformation.
[url]https://codes.iccsafe.org/content/FLRC2020P1/chapter-15-exhaust-systems[/url
Let us know how it turns out.