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Subject:
Re: Terne coated COPPER Roofing
From:
"Hammarberg, Eric" <[log in to unmask]>
Reply To:
This conversation may be monitored for quality control.
Date:
Mon, 9 Jul 2007 18:05:16 -0400
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My concern is pin hole pitting. If the coating wears or fractures and you
expose copper then I think you have a potential for galvanic pitting
corrosion. What do you think?


Thanks,

Eric Hammarberg
Vice President
Thornton Tomasetti
51 Madison Avenue
New York, NY  10010
T 917.661.7800  F 917.661.7801  
D 917.661.8160  
[log in to unmask]

This message sent from Treo, please pardon spelling and other mistakes. 

 -----Original Message-----
From: 	Jim Hicks [mailto:[log in to unmask]]
Sent:	Monday, July 09, 2007 05:42 PM Eastern Standard Time
To:	[log in to unmask]
Subject:	Re: [BP] Terne coated COPPER Roofing

On 7/9/07 9:12 AM, "Hammarberg, Eric" <[log in to unmask]>
wrote:



Yes folks it appears that this is Freedom Gray by Revere - Tin/Zinc Coated. 
Is there any reason to be concerned about galvanic action? 


Eric Hammarberg, Assoc. AIA 
Vice President 
Thornton Tomasetti 
51 Madison Avenue 
New York, NY  10010 
T 917.661.7800 F 917.661.7801  
D 917.661.8160  
[log in to unmask] 



_____________________________________________ 
From:   Hammarberg, Eric  
Sent:   Friday, July 06, 2007 2:06 PM 
To:     'The Listserv that makes holes in Manhattan schist for free!' 
Subject:        Terne coated COPPER Roofing 

Does anybody have an opinion of Terne coated COPPER Roofing? 

Thanks, 


Eric Hammarberg, Assoc. AIA 
Vice President 
Thornton Tomasetti 
51 Madison Avenue 
New York, NY  10010 
T 917.661.7800 F 917.661.7801  
D 917.661.8160  
[log in to unmask] 



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I think for galvanic action you need surfaces next to each other to have an
oxidation process occur with each surface that effecting the other. When two
metals are fused like tin/zinc on copper there isn't a surface to be
interacted on.
j 
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