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Subject: Re: [DCHAS-L] Is lead sheeting a source of lead dust? And-Chemical Exposure question...

Date: Jul 26, 2019 23:45 UTC

Author: James Kaufman <jim**At_Symbol_Here**LABSAFETY.ORG>

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Subject: Re: [DCHAS-L] Is lead sheeting a source of lead dust? And-Chemical Exposure question...

Date: Jul 27, 2019 05:18 UTC

Author: Eugene Ngai <eugene_ngai**At_Symbol_Here**COMCAST.NET>

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From: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>

Subject: Re: [DCHAS-L] Is lead sheeting a source of lead dust? And-Chemical Exposure question...

Date: Jul 26, 2019 23:58 UTC

Reply-To: ACS Division of Chemical Health and Safety

In-Reply-To: Re: [DCHAS-L] Is lead sheeting a source of lead dust? And-Chemical Exposure question...

Demystify: 

You betchya sweet life.   That is another issue we have when we use abandoned churches and old mansions for shooting.  The studios that repair this stuff also have huge lead dust control problems.

There is an amazing degree of ignorance about toxicity seen in the posts of the craftspeople on some stained glass craft sites.  There rationales for continuing to use lead include that lead is not really toxic, 

 Many stained glass craftspeople still use lead came or massive amounts of lead solder when they use the foil method of joining.  There are substitutes for the came and solder, but people want to keep using the old stuff.

I'm a judge for an historic art fair that occurs twice a year here in NYC and I can tell you it has not changed much.  Be careful about what you buy and bring into your house.

Monona


-----Original Message-----
From: Patricia Redden <predden**At_Symbol_Here**SAINTPETERS.EDU>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Sent: Fri, Jul 26, 2019 7:26 pm
Subject: Re: [DCHAS-L] Is lead sheeting a source of lead dust? And-Chemical Exposure question...

Is there a similar problem with lead cames on "stained glass" type windows?

Pat Redden

On Fri, Jul 26, 2019 at 7:20 PM Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**lists.princeton.edu> wrote:
Beautiful Dreamer, List to my song.  

All the ground around buildings with lead roofs and lead/copper sheeting is usually high in lead.  I know from the building restoration projects I've been involved in.  And there was a big move a few years ago to continue to install lead roofs because they were what was here originally.  Bad idea. There are now stainless steel roofing materials that will last MUCH longer and don't release anywhere near the amounts of metals and no lead.

One of the reason they have to replace the lead roofing and flashing every 30 years or so is it has corroded way in spots or has thinned.  Where do you think that lead went?

 And the restorers on these projects do NOT publish the data on the soil around the building.  But I've seen it.

Monona


-----Original Message-----
From: Peter Zavon <pzavon**At_Symbol_Here**ROCHESTER.RR.COM>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Sent: Fri, Jul 26, 2019 5:23 pm
Subject: Re: [DCHAS-L] Is lead sheeting a source of lead dust? And-Chemical Exposure question...

You can see the "stains" on older roofs where lead sheeting is used like that. Moss and other things do not grow where lead has "run off" during rain events.  Often I've noted that the "stain" does not reach to edge of the roof, so perhaps the lead does not get to the ground in toxic amounts.
 
 
Peter Zavon
Penfield, NY

PZAVON**At_Symbol_Here**Rochester.rr.com