Treated wood and corrosion of hangers

[Bob Dylan]

I have been specifying a layer of membrane tape such as Grace Vycor between heavy galvanized connectors and the beams and joists they clip together. I do this because of all the concerns about corrosion of metal the chemicals in treated wood can cause.

How much of a concern is this with the latest generation of pressure-treated woods?

[charles]

What exactly do you mean by "latest generation"?

[Bob Dylan]

Whatever they are selling at a lumberyard near you, and not that treated using chromium copper arsenate (CCA). Pressure-treated lumber processes have evolved over the last twenty-five years.

[charles]

Yeah, I know they've evolved. But they continue to evolve so fast that the answer to your question depends on which kind you are using. See http://www.strongtie.com/productuse/...l?source=hpnav

[davenorthup]

Bob - keep doing it. I took out some Z-max connectorss a few years ago that was completely dry for 5 years; but was outside. I was amazed at the corrosion that had taken place already. I isolate everything since I saw that corrosion.

[David Meiland]

Dave, what was the wood treatment in question? A few years + 5 years ago might mean 2003 or 2004, when ACQ was first coming out.

Everything here is MCQ right now. I don't know much about how that compares, but hopefully it's better.

[always-learning]

The layer of membrane is cheap insurance, regardless of what lumber is being used, IMO.

I live near the Atlantic, and everything rusts here.... even the stainless deteriorates over time.

[David Meiland]

Chuck... new business opportunity for you... find a Chinese sheet metal plant and have them make you a couple container-loads of naval bronze hangers... sell them at the really high-end jobs. The LU28 in bronze should list for about $150. Guaranteed to outlast the rest of civilization.

[always-learning]

Chuck... new business opportunity for you... find a Chinese sheet metal plant and have them make you a couple container-loads of naval bronze hangers... sell them at the really high-end jobs. The LU28 in bronze should list for about $150. Guaranteed to outlast the rest of civilization.

Yeah, we'll call it Chuc/Meil hanger corp.

购买两个很多钱白家伙中国产品

[David Meiland]

As long as you don't take all the money and head for Atlantic City in a limo....

[always-learning]

As long as you don't take all the money and head for Atlantic City in a limo....

地狱，我骑我足够接近轻便摩托车

(hell, I could ride my moped, I'm so close)

[David Meiland]

Upside down hut minus squirrel face....

[always-learning]

你是有趣的家伙，有没有裤子和屏幕� �的裸体人

(You're a funny guy... sitting there with no pants, and naked people on the screen.)

[davenorthup]

It was installed summer 2004; not sure what it was as we get new things a little slower. Like Chuck, we are coastal as well and things take a beating...

[S.Joisey]

If the hanger that you can see corrodes, I wonder what's happening to the nails that you can't see.