Ken Definitely craft is critical but we are in the specification stage and that allows us to micromanage material selection. Mix that with a suggestion of Terne Coat II Copper (Freedom Gray), which is something we do not have experience with, "and" a Parks Project, we are taking the opportunity to consider all the angles. 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: Gabriel Orgrease [mailto:[log in to unmask]] Sent: Tuesday, July 10, 2007 08:06 AM Eastern Standard Time To: [log in to unmask] Subject: Re: [BP] Terne coated COPPER Roofing Eric, How about doing some testing of the air quality (acidity) at the specific location & elevation and projections of future pollution over 200 years? As I understand it re: Live Earth there may not be many people around to worry about it. Then again, only high elevations of Minhattan may be evident in 200 years. I agree w/ Leland about the not any old tin knockers. Can the not-any-old-tin-knockers be found? Not exactly as if one can google that and get like w/ Home Depot a result w/in 50 miles, 30 miles, around the corner. Will they be willing to work in the environment? Will the 'system' lean towards not-any-old-tin-knockers or is there a higher potential outcome that the system will provide not-quite-tin-knockers? I agree wholeheartedly on going for the gold standard. I am increasingly cynical in my old age that a trust in the 'system' leans towards a potential of screw up at 99%. My perspective would be to not worry about the performance of the materials as much as that the contract-bid situation would lead to supply of mechanics (not exactly their fault) not up to the task and that a goal of good workmanship and longevity has to take into consideration just how the final installation might actually happen. If not the use of a more commonly understood and more easily workable material by less skilled mechanics might not actually last longer than a theoretically more durable material installed by functional morons. I say this with it in mind that I spent a Saturday morning a few weekends ago down in Little Italy (China Town) up on an 86 lift w/ an Albanian operator who amidst banging the basket into the wall, getting the machine hung up, the machine shutting down etc. and his not being too in-tune with what the little pictures meant on the control panel (the machine is owned by the company and arrived on their truck) the whole time saying, "God bless America! How come there are so many Chinese here? Is this China? God bless America! I am the expert!" ][<en Leland Torrence wrote: > Eric, > > Attached below is a good simple chart for galvanic reactions. > -- To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: <http://listserv.icors.org/archives/bullamanka-pinheads.html> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> The information in this email and any attachments may contain confidential information that is intended solely for the attention and use of the named addressee(s). This message or any part thereof must not be disclosed, copied, distributed or retained by any person without authorization from the addressee. If you are not the intended addressee, please notify the sender immediately, and delete this message. <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> -- To terminate puerile preservation prattling among pals and the uncoffee-ed, or to change your settings, go to: <http://listserv.icors.org/archives/bullamanka-pinheads.html>