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Lead Lined Drywall

 
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Old 07-14-2012, 07:52 AM   #21
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Re: Lead Lined Drywall


Heck one that I'm thinking of doesn't even have doors of any sort...the other one was just regular doors...

Oh well the cheque cleared and I know about as much about radiation as I do about hanging drywall.
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Old 07-14-2012, 07:56 AM   #22
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Re: Lead Lined Drywall


Ah, those X-rays really don't do much anyways.
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Old 07-14-2012, 08:07 AM   #23
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Re: Lead Lined Drywall


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One thing you have to consider is that there is a difference between using lead as a solid sheet of material vs. it being in paint, gasoline, or any other substance where it is in particle form and can be inadvertently inhaled.
Not really any different at all. The lead is encapsulated in all the stuff it's in. It only gets released when it's destroyed. If you burnt fuel it's released, cut paint with a circuler saw its released, cut lead lined drywall with a circuler saw its released. Same goes for floor coverings and bathtubs. All this stuff is safe until its messed with. But there's vastly more lead in lead lined drywall than paint. Be curious to know RRP stance on this stuff when in residential, prob be the same as floor covers and bathtubs. Even they admit that the law not covering them to things is silly. One of them I spoke to said that may be added soon though as its come up a lot lately.
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Old 07-14-2012, 08:08 AM   #24
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Re: Lead Lined Drywall


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I can tell ya from the last two I worked on one is only 4 or 5 years old and the other is probably 30...neither one had boxes wrapped. Not to mention there was nothing special in the ceiling...what about the people above?

I was a helper a while ago and we did one of these. There was no need to do it on the ceiling as the direction of the X-Rays was not up reducing the amount of radiation the ceiling sees AND the engineer said the concrete floor above was plenty thick enough to stop the radiation.
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Old 07-14-2012, 08:11 AM   #25
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Old 07-14-2012, 08:12 AM   #26
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Re: Lead Lined Drywall


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Not really any different at all. The lead is encapsulated in all the stuff it's in. It only gets released when it's destroyed. If you burnt fuel it's released, cut paint with a circuler saw its released, cut lead lined drywall with a circuler saw its released. Same goes for floor coverings and bathtubs. All this stuff is safe until its messed with. But there's vastly more lead in lead lined drywall than paint. Be curious to know RRP stance on this stuff when in residential, prob be the same as floor covers and bathtubs. Even they admit that the law not covering them to things is silly. One of them I spoke to said that may be added soon though as its come up a lot lately.
Sheet lead cuts like fudge, it doesn't blast into a gajillion fine dust particles...well it didn't when I cut it.
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Old 07-14-2012, 09:03 AM   #27
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Re: Lead Lined Drywall


By what I understand, radiation travels in a straight path thus the reason lead is only required up to 7' high.

Oh yeah, I tried cutting a piece of the demoed lead with my metal snips & it cuts very easy.

Last edited by woodbutchr; 07-14-2012 at 09:06 AM.
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Old 07-14-2012, 09:28 AM   #28
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Re: Lead Lined Drywall


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Sheet lead cuts like fudge, it doesn't blast into a gajillion fine dust particles...well it didn't when I cut it.
I have only ever cut it with shears when we done flashing and it cuts easy. The dust from the cut gotta go somewhere when cut with a saw. I'm sure it dont come of in chunks. Just like cutting allow with a blade. Your left with a micro fine dust that sits in the air for some time. Bet the same happens with lead. Not that anyone would be stupid enough to cut lead with a saw but I'm sure it happens.
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Old 07-14-2012, 09:35 AM   #29
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Re: Lead Lined Drywall


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The walls I tore down did not have screw caps and the box penetrations were not wrapped!
I wonder if these lead sheets more of a precautionary thing than a protective one. Even if the doctor/technician is wearing a lead apron, they aren't exactly wearing a full body suit. Could it just be that there is an "acceptable" amount of radiation that escapes during an x-ray?

I raise this question because I was installing the AV equipment in a new hospital about a year ago and nobody ever said anything about being careful with the walls and nobody ever checked back behind us.

Also, on the prints there was a dotted circle around every x-ray machine location as to suggest how far the "danger" zone is. They even had signs in the hallway warning people who walked through.
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Old 07-14-2012, 10:52 AM   #30
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Re: Lead Lined Drywall


X-rays are like light. You turn it on there is light, you turn it off there is no light. There is no residual remaining.

If you are talking about alpha and beta radiation then there can be residual because they are particles that get stuck and remain.

Just like the fear when food was being radiated by cobalt 60. People were freaking out expecting radioactive food when there is no chance of that ever happening.
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Old 07-15-2012, 04:19 AM   #31
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Re: Lead Lined Drywall


I built a lead wall about two yrs ago. It was just wide enough for the technician to stand behind. And I installed a window for them to look through.

I think the technology with the x-ray machines has come a long way. When I was younger we would hang the entire room with the lead sheets.

Have also done several home theaters that were all lead lined.......They were a bitch!

But on the bright side. I have a lifetime supply of duck decoy anchors
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Old 07-15-2012, 07:16 AM   #32
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Re: Lead Lined Drywall


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I built a lead wall about two yrs ago. It was just wide enough for the technician to stand behind. And I installed a window for them to look through.

I think the technology with the x-ray machines has come a long way. When I was younger we would hang the entire room with the lead sheets.

Have also done several home theaters that were all lead lined.......They were a bitch!

But on the bright side. I have a lifetime supply of duck decoy anchors
What the heck you need duck decoys for? Just bring a loaf of bread, they'll come right to the boat.

Just leave them poor ducks alone.
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Old 07-15-2012, 07:21 AM   #33
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Re: Lead Lined Drywall


i think we have found paulies soft spot
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Old 07-15-2012, 07:24 AM   #34
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i think we have found paulies soft spot
Don't have a soft spot, got big brass monkey balls, run the work van like a raped ape and I can squish ya like a egg.
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Old 07-15-2012, 07:38 AM   #35
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Re: Lead Lined Drywall


you quack me up
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Old 07-18-2012, 12:50 PM   #36
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Re: Lead Lined Drywall


About one of my first jobs (20 yrs ago) was at the va hospital.We had lead lined drywall,lead hollow core jambs and lead doors.We was working on the 3rd floor and they would only allow us to stack 6 sheets per pile because it was so heavy.
It was a good thing i was young or mite have got out of the trade after that job.

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