John Cropper j.cropper at trinidad.net
Thu Dec 13 22:19:41 EST 2001

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 at janouras.com
Thank you

----- Original Message -----
From: "Lawrence F. London, Jr." <lflondon at mindspring.com>
Newsgroups: permaculture
To: "permaculture" <permaculture at 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 at 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 at mindspring.com
> http://www.ibiblio.org/ecolandtech  london at ibiblio.org
> ---
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