Protecting post bracket from treated lumber?

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Mark - 29 Apr 2005 02:56 GMT

I have a couple of older (2-3 years) post brackets in place,
and they may not have been adequately plated to protect
them from the new copper-based treated lumber. It is not
practical to replace them at this point, so I want to do what
I can to protect them. A couple of ideas I am considering:

1. Paint them.

2. Place a thin plastic dielectric between the wood and
the bracket (a cut piece of 2-litre pop bottle,
for example.

Any thoughts on this?

Thanks
-Mark

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Bob Morrison - 29 Apr 2005 15:22 GMT

In a previous post Mark says...

> 2. Place a thin plastic dielectric between the wood and
> the bracket (a cut piece of 2-litre pop bottle,
> for example.

WR Grace makes a product called Vycor Deck Protector, which is a heavy
sticky-backed membrane.

Go to this link for more info:

http://www.strongtie.com/ftp/bulletins/T-PTBARRIER05.pdf

Signature

Bob Morrison, PE, SE
R L Morrison Engineering Co
Structural & Civil Engineering
Poulsbo WA

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Mark - 29 Apr 2005 19:15 GMT

> WR Grace makes a product called Vycor Deck Protector, which is a heavy
> sticky-backed membrane.
>
> Go to this link for more info:
>
> http://www.strongtie.com/ftp/bulletins/T-PTBARRIER05.pdf

(researching...)

Looks good. They still indicate that triple-galvanized hangers should
be used even with the Vycor product, but it certainly should help.

Off to Atlas to pick up a roll. . .

Thanks
-Mark

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RicodJour - 29 Apr 2005 22:04 GMT

> I have a couple of older (2-3 years) post brackets in place,
> and they may not have been adequately plated to protect
[quoted text clipped - 7 lines]
> the bracket (a cut piece of 2-litre pop bottle,
> for example.

That's a tough one. Anything you do is only covering the exposed
surfaces and preventing water from approaching from the outside. The
real problem is the wood/steel contact, and as the wood picks up water
on it's own you're going to have the reaction regardless. You may slow
it down some, though.

R

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Homeowner Forum / Construction / April 2005

Protecting post bracket from treated lumber?