to it for a period of 14 years. Stainless was the only one that came out
looking about as good as it did when it went in. Hot dipped galvanized steel
was next with considerable external corrosion, but okay inside. Then came
moderately zinc galvanized and electroplated. Both of those had extensive
corrosion and looked like shriveled up blackened worms. I find it
particularly interesting that what gets used in the pneumatic nailers is
electroplated.
I did some digging last night and found the manufacturer of the wood has a
FAQ. (Good going Internet memes!) From that:
"Aluminum should not be used in direct contact with ACQ preserved wood.
Spacer materials or some other physical barrier are recommended to prevent
direct contact. A poly barrier is recommended for any applications where ACQ
will meet aluminum flashing. Do not use aluminum fasteners."
So there it is. I'm sure I've got some Saran Wrap somewhere. :-)
-Kevin
----- Original Message -----
From: "Jim Davis"
> But it may still be a cosmetic issue. Copper tends to turn green when it
> corrodes, but generally gets only a thin layer of corrosion and is then
> pretty much inert (similar to silver which tend to tarnish rather than
rot).
> That's why it was often used to clad domes of buildings and such - Boston
> still has tons of copper construction (Paul Revere was a copper magnate
> don'tchaknow).
>
>
>
> In other words there's a tarnish, but not "rust through" like you'd see
with
> steel. The tarnish is unsightly, but not really structurally dangerous in
> any way.
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