[TheForge] Fw: OT - Asphalt shingle rot? (Lichen)

[David E. Smucker]

Bruce, copper roofing nails should not be hard to find.  Used with copper 
flashing and with copper standing seam roofs.

Since like most blacksmiths you are cheap (self included) you might find a 
sheet metal shop doing copper work and get some drops from them and also 
likely they will have the copper roofing nails.  We use them on a standing 
seam roof we did several years ago at the John C Campbell Folk School.

Copper isn't cheap but will outlast all of us.

Dave

--------------------------------------------------
From: "Bruce Freeman" <freemab222 at gmail.com>
Sent: Monday, July 05, 2010 11:48 AM
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Subject: Re: [TheForge] OT - Asphalt shingle rot? (Lichen)

> Frosty,
>
> I just found a commercial product sold in the UK under the name of
> (Westfalia.net) Moss Stop, which is a copper foil backed with sticky
> bitumen, with a peel-off plastic layer.  It goes down on a roof like
> self-stick floor tile.  Sounds like a good idea, but doesn't seem to
> be sold in the US.  (Equivalent price for what I'd need would be maybe
> $180, which might be worth it to save messing around myself.)
>
> I priced copper foil (1 to 3 mil) and found it costs about as much as
> the Moss Stop, so there's no advantage rhere except availability.
>
> I like the idea of using copper wire except for two things:  1) Would
> there be enough copper exposed to be effective?  2) How to attache it
> so it doesn't rattle around up there. It might be okay if it rattles
> around on a wood-shingled house, but 14-ga copper wire would cut holes
> in asphalt shingles if it moves more than a little.
>
> What might make sense is to get copper-clad nails with sealling
> washers below the heads, and use these to tack on the copper wire.
> That's assuming one can get such nails!
>
> Other ideas welcome.
>
> For the nonce, I'll probably just spray down the roof with copper
> sulfate solution.
>
>
>
>
>
> On Thu, Jul 1, 2010 at 3:01 PM, Jerry Frost <akfrosty at mtaonline.net> 
> wrote:
>> Lichen is generally an air plant meaning it only needs water and air to 
>> grow
>> so looking for organic causes is more a distraction than useful.
>>
>> Forget bleach, while it'll work okay it will dry and leave an 
>> electrolytic
>> component on your roof so every time it rains galvanic action will 
>> degrade
>> nails, etc. You don't get a galvanic reaction without an electrolyte, 
>> clean
>> fresh water won't do it at all. You don't see zincs on metal boats in 
>> fresh
>> water, not a problem.
>>
>> Just pick up a roll of copper wire long enough to run the length of the
>> roofline just under the peak on both sides. String it out and tack it 
>> down
>> or tuck it under a shingle corner every so often, or whatever. It isn't
>> complicated and so long as there's no electrolyte copper isn't going to 
>> eat
>> your galvy nails, aluminum flashing or rain gutters.
>>
>> Trimming back shade trees and keeping organic litter off will help too 
>> but
>> isn't a must do if you can lay a little copper on it. Heck, if you want
>> immediate results give it a light spray with copper sulfate solution. I
>> don't suggest the last, it's a bit too harsh a toxin for every day use, 
>> the
>> flower planters won't like it.
>>
>> Frosty
>> -------------------------
>> If it ain't forged
>> It ain't real
>> wrought iron is
>> The Frostworks
>>
>>
>>
>> ______________________________________________________________
>> TheForge mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/theforge
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:TheForge at mailman.qth.net
>>
>> TheForge mail list group photo site is
>> http://www.photoaccess.com
>> Login: blacksmithblacksmith at hotmail.com
>> Password: anvil
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>
>
> -- 
> Bruce
> NJ
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.photoaccess.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>