Shaft wall duct penetration isolation

Why would a light gage sheet resist vibration more than a heavy gage sheet, and why would a sheet vibrate more at lower pressures?

An element from a higher pressure class or larger duct size may be substituted in a construction of a lower pressure class or smaller duct size. The purpose of this update is as follows: Remind all state More information.

Thus, the weight basis associated with thickness specifications as The tables indicate that a 10" W.

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