Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-01-2019, 08:29 AM   #1
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Country: US
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,147
Sound-deadening floor material?

Iím thinking of replacing the metal diamond plate floor covering in our engine room. I know that to truly reduce engine room racket, Iíll need to upgrade the acoustic coverings on the walls and ceilings. But Iíve almost convinced myself that ER noise is also being reflected upward off the metal flooring and thought this might be a good place to start.

Has anyone done this and noticed any difference? What did you use?
Attached Thumbnails
Click image for larger version

Name:	7DDE5C62-91C1-4E5F-9944-A1FA7AF4DEE4.jpg
Views:	49
Size:	163.8 KB
ID:	95939  
__________________
Advertisement

angus99 is online now   Reply With Quote
Old 11-01-2019, 08:52 AM   #2
Senior Member
 
City: Rochester, NY
Country: USA
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 465
The floor coverings in my engine room (over the center bilge and such) are just painted marine plywood. It's held up fine for 33 years. Should be somewhat better than metal for noise reflection, although I'm not sure how much.
__________________

rslifkin is offline   Reply With Quote
Old 11-01-2019, 08:53 AM   #3
Senior Member
 
City: Hong Kong
Country: Hong Kong
Join Date: Nov 2012
Posts: 242
You can try to paint the aluminum boards with sound absorbing paint on both sides - as a test.

I've got Mascoat Sound reducing paint on all engine room surfaces. It's VERY effective in combination with other sound reducing systems.

https://www.mascoat.com/what-is-sound-damping.html
http://www.antalyadeltamarine.com/pdf/dBCutSheet.pdf
Searios is offline   Reply With Quote
Old 11-01-2019, 09:44 AM   #4
Guru
 
hollywood8118's Avatar
 
City: Port Townsend Washington
Country: USA
Vessel Name: " OTTER "
Vessel Model: Ocean Alexander Europa 40
Join Date: Nov 2009
Posts: 1,758
just leave the metal flooring and place some kind of rubber or foam mats on it..

I use those "gym" mats that interlock and cut to width and length. I do it mostly to be easy on the knees when working down there.. sound is a side benefit



HOLLYWOOD
hollywood8118 is offline   Reply With Quote
Old 11-01-2019, 10:02 AM   #5
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Country: US
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,147
Quote:
Originally Posted by Searios View Post
You can try to paint the aluminum boards with sound absorbing paint on both sides - as a test.

I've got Mascoat Sound reducing paint on all engine room surfaces. It's VERY effective in combination with other sound reducing systems.

https://www.mascoat.com/what-is-sound-damping.html
http://www.antalyadeltamarine.com/pdf/dBCutSheet.pdf
Interesting! I hadnít thought of coating the walls.

Just talked to Mascoat and they prefer their coatings to be applied directly to steel or fiberglass, not the perforated fiber tiles on my ER walls and ceilings. Also, they recommend spraying, vs brushing or rolling, which I prefer not to do. Still, if I can find a coating that works, Iíll consider itóso thanks.

How was yours applied and over what?

Quote:
Originally Posted by hollywood8118 View Post
just leave the metal flooring and place some kind of rubber or foam mats on it..

I use those "gym" mats that interlock and cut to width and length. I do it mostly to be easy on the knees when working down there.. sound is a side benefit

HOLLYWOOD
This makes total sense. Thanks.
angus99 is online now   Reply With Quote
Old 11-01-2019, 10:39 AM   #6
Guru
 
City: Canaveral
Country: USA
Join Date: Jun 2012
Posts: 1,354
I had cut green felt carpeting from a big roll at Home Depot. Cheap and it did cut reflected noise down a little bit, but not a lot. But it was easier on my knees than the steel diamond plate. Was worth every penny
makobuilders is online now   Reply With Quote
Old 11-01-2019, 10:40 AM   #7
Guru
 
Comodave's Avatar
 
City: Au Gres, MI
Country: US
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 5,770
I got some mats for the floor to help cut down on fatigue from standing at Woodcraft. They are about 1/2Ē thick and maybe about 20Ē by 50Ē. They might absorb sound and will also give your knees a break when kneeling in the engine room. They werenít too expensive so if they get dirty just throw them out and get some new ones.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is online now   Reply With Quote
Old 11-01-2019, 10:42 AM   #8
Guru
 
Comodave's Avatar
 
City: Au Gres, MI
Country: US
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 5,770
Just looked on woodcraft.com. They are $36.50 and 2íX5í.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is online now   Reply With Quote
Old 11-01-2019, 10:42 AM   #9
Senior Member
 
Tuttouomo's Avatar
 
City: PNW
Country: USA
Vessel Name: Lady A
Vessel Model: Defever 44
Join Date: Jul 2014
Posts: 144
I also have the thick soft rubber interlocking mats like Hollywood stated. Works like a charm .

Bill
Tuttouomo is offline   Reply With Quote
Old 11-01-2019, 10:43 AM   #10
Guru
 
Codger2's Avatar
 
City: San Diego
Country: US
Vessel Name: "Sandpiper"
Vessel Model: 2006 42' Ocean Alexander Sedan
Join Date: Oct 2007
Posts: 5,900
[QUOTE=hollywood8118;816354]Just leave the metal flooring and place some kind of rubber or foam mats on it..
I use those "gym" mats that interlock and cut to width and length. I do it mostly to be easy on the knees when working down there.. sound is a side benefit)

I agree with the above and do exactly the same thing.

A nice addition to the above is this portable stool.

https://weinflux.com/products/portab...nP3qR79H0nuEX0
Attached Thumbnails
Click image for larger version

Name:	ER Floor.jpg
Views:	39
Size:	118.2 KB
ID:	95943  
__________________
Codger 1941.. Constant pursuit of the ultimate SoCal Cruising boat.
Codger2 is offline   Reply With Quote
Old 11-01-2019, 10:58 AM   #11
Guru
 
City: Melbourne, FL
Country: USA
Join Date: Dec 2014
Posts: 1,444
You might want to research mass loaded vinyl since you would be walking on the vinyl... It is more durable than soundown foam in a wear situation.



Buy a small roll of this for your reflective surfaces, and then tack it to the ceiling, and pay particular attention to the gaps around the hatches for higher frequency sounds.


It takes mass (weight) to stop lower vibrations, and an air-gap or air-break to stop higher noises. Good gaskets around your hatches will help some.
stubones99 is online now   Reply With Quote
Old 11-01-2019, 12:19 PM   #12
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Country: US
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,147
Quote:
Originally Posted by stubones99 View Post
You might want to research mass loaded vinyl since you would be walking on the vinyl... It is more durable than soundown foam in a wear situation.



Buy a small roll of this for your reflective surfaces, and then tack it to the ceiling, and pay particular attention to the gaps around the hatches for higher frequency sounds.


It takes mass (weight) to stop lower vibrations, and an air-gap or air-break to stop higher noises. Good gaskets around your hatches will help some.
ANOTHER approach I wasnít aware of. This stuff could be the solution vs SoundDown for walls and ceiling. Thanks!
angus99 is online now   Reply With Quote
Old 11-01-2019, 12:39 PM   #13
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 7,908
Ian: Reach out to TF member Steve Moyer, Keysdisease. He runs the South East Region for Soundown. When we redid our engine room he was invaluable resource for noise reduction.

https://soundown.com/
Larry M is online now   Reply With Quote
Old 11-01-2019, 02:36 PM   #14
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Country: US
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,147
Quote:
Originally Posted by Larry M View Post
Ian: Reach out to TF member Steve Moyer, Keysdisease. He runs the South East Region for Soundown. When we redid our engine room he was invaluable resource for noise reduction.

https://soundown.com/
Shall do, Larry.

Thanks, Larry . . .

. . . and thanks all for the wealth of ideas. This will likely be a winter project but youíve already given me a lot to ponder.
angus99 is online now   Reply With Quote
Old 11-01-2019, 06:13 PM   #15
Senior Member
 
City: Hong Kong
Country: Hong Kong
Join Date: Nov 2012
Posts: 242
Quote:
Originally Posted by angus99 View Post
Interesting! I hadn’t thought of coating the walls.

Just talked to Mascoat and they prefer their coatings to be applied directly to steel or fiberglass, not the perforated fiber tiles on my ER walls and ceilings. Also, they recommend spraying, vs brushing or rolling, which I prefer not to do. Still, if I can find a coating that works, I’ll consider it—so thanks.

How was yours applied and over what?
.
It's a steel boat, the coat was applied with spray on top of the mandatory coatings.

But we did many areas with a brush where it was impossible to use a spray gun
Searios is offline   Reply With Quote
Old 11-01-2019, 06:58 PM   #16
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Co) Monk 42
Join Date: Sep 2011
Posts: 1,302
Quote:
Originally Posted by hollywood8118 View Post
just leave the metal flooring and place some kind of rubber or foam mats on it..

I use those "gym" mats that interlock and cut to width and length. I do it mostly to be easy on the knees when working down there.. sound is a side benefit



HOLLYWOOD
Check out yoga mats
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 11-02-2019, 08:37 AM   #17
Guru
 
ranger42c's Avatar
 
City: Maryland
Country: USA
Vessel Model: 42' Sportfish
Join Date: Aug 2013
Posts: 4,656
Quote:
Originally Posted by stubones99 View Post
You might want to research mass loaded vinyl since you would be walking on the vinyl... It is more durable than soundown foam in a wear situation.

We installed Soundown under our carpet throughout the "house"... near as I can tell, it's mass loaded vinyl undercoated with 1/2" foam. Don't see why it wouldn't be durable in an engine room, especially if pieces are cut to fit, can't slide around underfoot, etc.

-Chris
__________________

__________________
South River, Chesapeake Bay
ranger42c is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 06:03 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×