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Re: Roof top Mech. Screen

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While I have discussed the value of painting vs. galvanizing with a pinting
specialist, and he has told me that painting can be done to a higher standard
than galvanizing, I have always galvanized exterior steel.

-Keith Fix, PE

--- richard lewis <rlewistx(--nospam--at)juno.com> wrote:
> I have been asked to design a screen for roof top mechanical screen.  The
> screen is about 4 feet high.  The architect prefers to use tube steel.
> My question is about corrosion protection.  Should the exposed steel be
> galvanized or just painted with a zinc-rich primer and finish coat?  I
> know painting is cheaper.  What is the advantage and disadvantage of
> each?
>
> Rich
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