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permaculture - Re: PVC/galvanized

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  • From: "John Cropper" <j.cropper@trinidad.net>
  • To: "permaculture" <permaculture@franklin.oit.unc.edu>
  • Subject: Re: PVC/galvanized
  • Date: Thu, 13 Dec 2001 23:19:41 -0400


I am sorry to have to advise that Mr. Cropper was unfortunately killed
earlier this week during a break in at his home. Please unsubscribe him
from this group.
I am presently checking John's mail. If you knew John personally and wish
to contact me directly, please use adesilva@janouras.com
Thank you

----- Original Message -----
From: "Lawrence F. London, Jr." <lflondon@mindspring.com>
Newsgroups: permaculture
To: "permaculture" <permaculture@franklin.oit.unc.edu>
Sent: Tuesday, December 11, 2001 17:10
Subject: Re: PVC/galvanized


> On 11 Dec 2001 04:22:03 -0800, Michael Dean
> <mikedean.com@altavista.com> wrote:
>
> >Can somebody explain to me why --"Never use lead head nails as fasteners
on such a roof; alternatives: stainless steel screws, also galvanized screws
and nails with neoprene washers"
>
> Lead-head nails are galvanized ring-shank roofing nails with lead caps
> surrounding the smaller galvanized steel heads on the nails. When you
> nail your 5-V roofing panels to your skip sheathing or plywood decking
> you'll nail into the inner of the two outside ridges of the panels.
> The lead head is forced onto and into the hole made by the nail thus
> preventing water from getting in. Over time the lead will leach out
> into the water running off the roof and into your cistern. Doubt you'd
> want to drink that under any circumstances, though many have over the
> years.
>
>
>
> L.F.London ICQ#27930345 lflondon@mindspring.com
> http://www.ibiblio.org/ecolandtech london@ibiblio.org
>
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