What about lead flashing as a sound barrier?

[grantgoold]

Really quickly, I have found some lead flashing used in commerical sound absorbtion for about 1/8 its normal cost. Anybody want to chime in on using it in the bus as a sound deadener around the gen set box? I was thinking about laying on the floor directly over the bay.

Anyone tried this before?

Thanks

Grant

[luvrbus]

Grant, I have lead sheeting in my bus that covers the entire bedroom in the rear and you cannot hear the 8v92 run.Prevost covers the entire floor from back to front on their entertainer shells with the lead sheeting 1/16 of a inch        good luck

[NJT 5573]

Grant,

Many of us already have lead in our buses from the factory. Lead is a hazardous material, so if you use it, be sure that you don't start tracking it around your coach. Anything it gets on will transfer for a long time. Health issues suck and lead will transfer to everyone who touches your coach. If you get tremors 2 or 3 years from now, get checked out.

[Utahclaimjumper]

I have 1/8th lead over the entire floor of my 06, old school, done 25 years ago, I.ve owned it ten years now and no tremores yet, (unless I piss off the boss).>>>Dan

[luvrbus]

The thing in lead that caused problems was the Arsenic all lead now is 99.999% pure in todays world and you touch lead every day in your life it is in glass,tires, TVs, computer screens, light bulbs, batteries and the list go on and on, very popular in the roofing on commercial building     
good luck

[JackConrad]

Years ago, I talked to a bus converter that was telling me ha always covers the engine compartment area on the inside of the bus with lead sheeting.  I asked him about then health risk. He said the only risk is in direct contact with the lead. He said he wears gloves when working with it and that once it is covered, there is no danger. This is only what I was told several years ago,  may or may not be correct.  Jack

[Kentucky Steve]

Does anybody know the best layer to put the lead at.  I mean does it go above the floor joist and under the plywood or should it go up against the bottom of the floor joist and then be covered over with the aluminum pan.



Kentucky Steve


Clifford, I like the ideal of covering the whole bus floor but I am not sure I would want to pack that 1,200 lbs around???

[Tom Y]

Steve, Prevost put a layer of plywood down then lead then another layer of plywood. I saw one like this with mini splits and a rotted top layer of plywood. They leaked and the lead held the water.  Tom Y

[Paladin]

Really silly question but where would you get these sheets and what are they used for? I was unaware that you could even buy lead like that but then again I never put much thought into it.
I've read about using lead sheets but always wondered if the extra weight offset any positive gains.

-Dave

[JohnEd]

In the rear the lead sheeting must go on the inside.  Between floor layers would be nice.  You cannot get it on the convoluted engine bay and what glue would you use in that hot environment.

The generator box is different.  I would go with two layers of ply if for no other reason than than to "capture" the lead for the vert and horizontal overhead layers.  That isn't all of it but its a good part.  I think the main point is that lead "between" you and the sound will make things quieter.

[luvrbus]

Paladin, I buy my lead sheets fro Roto Metals located in San Lendro CA http://rotometals.com 1-866-768-6638 they ship it by UPS and comes in all different weights and thickness down to 1/64 of a inch (1lb per sf)   good luck

[cody]

Lead is the best for soundproofing but many of us are still a little concerned about the health issues, there are products available that seem to be safe and are viable alternatives to lead,   http://www.soundproofing.org/infopages/flooring.htm   this is one of the choices. Mass Loaded Vinyl can be layered between subfloor and underlayment, it can also be placed under carpeting as well as hung between the wall structure and interior walls sandwiched in between.  It also works in quiet boxes for generators quite well.  They claim that lead is now relatively safe to handle, I'm just not convinced, especially in light of the recalls on toys and other products, I'm not sure if anyone knows what is safe anymore.  Just another option.

[Don Fairchild]

Grant;

I would like to have some for my bus, is there more than you will use. let me know how much.

Don

[Airbag]

 You know what will happen if you crack that stuff? You will have broken the sound barrier.

[JohnEd]

Cody,

That is a great site.  Wish I had had that info when I was remodeling this place.  I liked the claim "almost as good as LEAD".  High praise indeed.

John