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Old 11-29-2011, 01:08 AM   #1
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Exposed i-beam that will not rust?


Hello! First post here

In the plans for my new custom house we are considering to use an exposed i-beam which will be part of a pergola construction.

My question is: How long will it it take for the i-beam to show rust? Are there any different types of i-beams or different treatments that can eliminate or reduce rusting?

We live near the sea and humidity is quite high here.

Thank you

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Old 11-29-2011, 06:13 AM   #2
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Exposed i-beam that will not rust?


Steel will rust....wood will rot. How long it takes depends on how well you protect it.

You could use a stainless steel beam....that would be REAL expensive.....and even stainless steel will rust a little in salty climates.

As long as you accept the fact that it will need regular maintenance....use what ever the engineer suggests.

A couple of options....I-beam with a wood cover....you primer and paint the I-beam and then cover it with wood...you could use a rough cut spruce to give it a rustic look....the wood would still need to be painted and maintained...but it would make for maybe easier maintenance.

Regardless of which way you go....the sun will break down any paint you put there...so expect to clean and paint every 5 years or so....maybe longer if you use a really good paint (I'm not a paint expert).

So...for our own curiosity....how about a pic of what your planning to build?

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Old 11-29-2011, 09:22 AM   #3
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Exposed i-beam that will not rust?


Quote:
Originally Posted by Zoc View Post
Hello! First post here

In the plans for my new custom house we are considering to use an exposed i-beam which will be part of a pergola construction.

My question is: How long will it it take for the i-beam to show rust? Are there any different types of i-beams or different treatments that can eliminate or reduce rusting?

We live near the sea and humidity is quite high here.

Thank you
Ayuh,.... Steel will start rusting almost immediately, unless primed, 'n painted...
Painted steel is probably yer Best option...

An Aluminum beam won't rust, but it'll co$t a $mall fortune...
'n of couse, it'll need to be slightly larger than a like steel beam...
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Old 11-29-2011, 04:48 PM   #4
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Exposed i-beam that will not rust?


Could see if a glue lam beam would work instead of steel in your application.
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Old 11-29-2011, 05:12 PM   #5
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Exposed i-beam that will not rust?


There is a type of steel called Cor-Ten which develops a protective crust and rusts no more. Used in bridges, shipping containers etc.
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Old 11-29-2011, 05:49 PM   #6
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Exposed i-beam that will not rust?


Quote:
Originally Posted by Zoc View Post
Hello! First post here

In the plans for my new custom house we are considering to use an exposed i-beam which will be part of a pergola construction.

My question is: How long will it it take for the i-beam to show rust? Are there any different types of i-beams or different treatments that can eliminate or reduce rusting?

We live near the sea and humidity is quite high here.

Thank you
Ask your architect who drew the plans about the company called "Better Header",...they have zinc coated steel flitch plates and I-beams. It's for exterior applications. Here's a link to their website.

Flitch Plate - http://betterheader.com/ccatreated.asp

I-Beam - http://betterheader.com/ibeam.asp

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