Author Topic: Soundproofing a steel boat with a diesel engine  (Read 3311 times)

Barry Webster

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Soundproofing a steel boat with a diesel engine
« on: August 08, 2001, 02:38:22 AM »
I recently bought a really cute, 25' steel mini-tug.  She has great potential.  My problem is that, typically, the diesel engine is quite noisy. The engine is under the deck, aft of the main cabin. There is some insulation around the engine compartment, in the form of sheets of foam with a silver backing, tacked here and there, but like many other details added by previous owner(s), it appears rather haphazard and cheaply done.
Does anyone know if I can "box in" the engine compartment with insulation all around?  My concern would be allowing sufficient air into the compartment to avoid overheating.
I read somewhere recently, that the hull itself acts as a resonating drum to amplify the noise, so I wonder, if I can insulate the engine sound from the hull, would I be achieving anything?
I gather that condensation is a potential problem.  I live in Canada, so dew point is a concern!!
Any thoughts would be greatly appreciated.  Thank you.