Ceiling insulation in the generator room

[tomrealest]

Today's project that I started was to clean up the Generator room under the galley. It's amazing how much space is down there with the big 8D batteries gone, replaced by the golf cart batteries.

The yachtfish is a 1978 and the original sound insulation is flaking down on everything making a mess. I was looking and thinking if I bought either 3/8" or1/2" foil faced insulation sheets, I could cut them to fit and tape them over top of the existing insulation. The present sound deadening is sufficient. It looks like 1/2" would be even with the wood floor panels and the other areas also.

Any opinions or thoughts?

 

[Boatsb]

Suitability for the environment.

You have a somewhat closed space with out gassing from batteries, fuel and oil mist plus heat and moisture. You need a good maring product that's made for that type of area..

 

[Bob Bradley]

If you are leaving the adequate, albeit flakey existing soundproofing material in place, how about just buying a sheet of FRP at Home Depot, cutting it to shape and screwing it into place?

 

[SEVEN]

I've done it in engine rooms and it looks fantastic. Hint, spray adhesive does not work. I used 2 face carpet tape. It's been up for 18 plus years.

 

[Fanfare]

Twenty five or thirty years ago we were anchoring out a lot. With the generator running all the time I found I needed to be able to inspect the entire 12 kw Onan to be sure all was well. So I removed the sound shield. To make up for this I added a layer of silver film Soundown foam to the generator room overhead. But now the foam is deteriorating and sprinkling black dust here and there, as well as trying to detach from the ceiling. Someday I will probably pull this out. My replacement Phasor 12.5 kw generator is 200 lbs. lighter, much quieter, and has a sound shield. I can hardly hear it. What to do about replacing the old Soundown will depend on the new noise level. Quiet, light and fireproof would top the list.

 

[Entonces]

I've done it in engine rooms and it looks fantastic. Hint, spray adhesive does not work. I used 2 face carpet tape. It's been up for 18 plus years.

Do you have a pic of this? Thanks!
James

 

[Angela]

My take from this is that the original stuff (I have) is off-white snow on everything. Replace that with sound-down and with time you get black/grey snow. There is no free lunch. No matter what you use, it has to be replaced every so many years, or you end up with the snow that you vacuum up or wash out of your hair after watering the batteries.

 

[Fanfare]

Fortunately my Phasor generator comes with an air filter, unlike the old Onan. That dust probably won't be good for the engine in the long run.

 

[SEVEN]

There are fairly new on the market resin rich acrylic clear primers that act like a glue to hold down chalky and chipping paint. Brush off the real loose stuff and add one of two costs of this. It's clear and sense it never hits the UV of the sun you don't have to put a finish coat on. However a good simi or gloss white finish coat would brighten up the room. Check with your local paint store. This is a real time saver.