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Problems linked to Chinese-made drywall

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Problems linked to Chinese-made drywall

Old 02-05-2009, 01:52 PM
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Default Problems linked to Chinese-made drywall

Corrosion, health problems linked to Chinese-made drywall

The Sarasota Herald-Tribune reports that ships carrying hundreds of millions of pounds of Chinese-manufactured drywall — enough to potentially construct more than 60,000 homes — unloaded their cargo at two dozen U.S. ports across the country since 2006. Some Chinese drywall, used to make interior walls, has now been linked to the near-complete corrosion of metal components in Florida homes, including wiring, piping, air conditioning coils — even jewelry. Affected residents also report a slew of health problems they associate with the gases coming from their walls.


http://www.ire.org/extraextra/car/co...-made-drywall/


Fwiw, the problem is thought to be sulfur-based gas emitted from the drywall.
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Old 02-05-2009, 02:06 PM
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Sulfur based gases??? You sure it's not from the crappy water in Florida??
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Old 02-05-2009, 02:10 PM
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I found some more:



Home builder Lennar Corp. is suing two Chinese manufacturers of drywall, claiming the wallboard is defective and is causing electrical problems and emitting rotten odors in dozens of homes across Florida.

The lawsuit, filed in state Circuit Court in Miami late Friday, alleges that manufacturers, Knauf Plasterboard Tianjin Co. and Taishan Gypsum, failed to establish effective quality control to detect defects in the drywall that was imported from China during the housing boom. Lennar is seeking unspecified damages.

In a statement, Knauf Tianjin says the drywall poses no health risk. The statement noted that Knauf has conducted tests in response to builders' complaints.

"The company will not be a scapegoat for homebuilders who would seek a quick and convenient bailout based on false claims," Knauf Tianjin said in a statement. "The company intends to vigorously defend its good name and reputation."

Taishan officials couldn't be reached for comment.

Lennar says environmental consultants it hired found that the drywall is emitting gases, which appear to be corroding air conditioner coils and other electrical equipment. Florida health officials, who have reviewed the consultants' results, say the drywall poses no immediate health threat.

Drywall problems have surfaced in homes built by a number of builders in Florida, Tennessee, South Carolina and Alabama, posing a public-relations headache for the beleaguered building industry.

Knauf Tianjin has said it has switched mines in China and has installed a monitoring device to detect gases.

Lennar's lawsuits also names USG Corp. and 12 drywall installers. A USG spokesman declined to comment on Lennar's lawsuit.

In recent days, homeowners have filed separate lawsuits against the drywall manufacturers, including a complaint seeking class-action status.
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Old 02-05-2009, 02:26 PM
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Default Re: Problems linked to Chinese-made drywall

Bottom line ?

BUY AMERICAN !!!!!!!!

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Old 02-05-2009, 02:35 PM
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Shame on the builders for buying Chinese made drywall in the first place in order to save a buck!

Lennar is the 3rd or 4th biggest home builder in the country, I suspect they just look to stamp them out.

I don't see how it can be really cost effective to ship something that is heavy and already cheap - like drywall - halfway around the world.
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Old 02-05-2009, 02:45 PM
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Default Re: Problems linked to Chinese-made drywall

Next thing they'll be doing is making entire prefabs in China and just assembling them here. If they're not already doing it already.
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Old 02-05-2009, 03:11 PM
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gf - 2/5/2009 5:35 PM I don't see how it can be really cost effective to ship something that is heavy and already cheap - like drywall - halfway around the world.
You'd be surprised! When I was a Superintendent for a DC area construction company, one of our projects was the Washington Convention Center. At that time, it was the largest excavation for a building in the western hemisphere. There was a strict "Buy American" clause in our contract with the Owner and all of our Subcontracts. The structural steel supplier/erector bought all of the raw material in the US and had it shipped to China, where it was fabricated, and then shipped it back here to erect, cheaper than it would cost to have it fabricated here. And that was in 1999/2000 when things were booming!

You can thank the good ol' Unions for that.
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Old 02-05-2009, 03:17 PM
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Wonder why the plant would change mines?

If the gases can basically dissolve metals, then how can it not be a health risk?
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Old 02-05-2009, 03:20 PM
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So who were the distributors of this stuff? Lowes, Home Depot, Menards?

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Old 02-05-2009, 03:23 PM
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gf - 2/5/2009 5:35 PM Shame on the builders for buying Chinese made drywall in the first place in order to save a buck! Lennar is the 3rd or 4th biggest home builder in the country, I suspect they just look to stamp them out. I don't see how it can be really cost effective to ship something that is heavy and already cheap - like drywall - halfway around the world.
If I'm not mistaken, the drywall supplier was USG (United States Gypsum). Although I'm not a fan of Lennar for several reasons, I would have to look at the supplier before the builder.
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Old 02-05-2009, 03:25 PM
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Here in Baltimore MD. there was is a Gold Bond drywall plant we took a tour through, (YEARS AGO). The supplier we got D/W from was in Canada. I asked the same thing. How can it be cost effective when we have a plant right here? But your talking Frickin China!!And it still cheaper!

Bethlehem Steel, years ago shut down and now the steel is imported. I guess they priced themselves right out of the market.

At work, in the 70's, when I was an apprentice we got 1 1/2" CRC (cold rolled channel) with "Made in South Africa" stickers on them that we were told to remove. The material was fine.

When doing a job at Aberdeen Proving Ground, a government job, we were to only use American made products. Typically the drywall screws we used were not made in the USA. When we switched to American screws we could not use them due to the poor quality. We were doing good if 1 in 10 was a good screw. Then you probably just got lucky with that one. It was so bad and we were not keeping with the schedule. The company decided to put the foreign made screws into the empty American screw boxes then they were brought onto the job.

I am the first person to buy American if I have a choice but I refuse to buy an inferior product.

I'll check with our subcontractors and their drywall suppliers. (I am in commerical construction).
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Old 02-05-2009, 03:28 PM
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We went to the Homebuilders show in Orlando last year. I was amazed at the huge quantity of building materials available from China. Shipping has to be a big expense. However, crap is crap no matter how far they ship it.
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Old 02-05-2009, 03:40 PM
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mattie - 2/5/2009 6:20 PM So who were the distributors of this stuff? Lowes, Home Depot, Menards? mattie
Most likely, Seacoast Supply, Rinker owned companies, and Allied Building Products. They are the "players" in Florida.
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Old 02-05-2009, 03:43 PM
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Default Re: Problems linked to Chinese-made drywall

Not to derail this thread but the corrosion from the drywall reminded me of this.

I hope everyone has been aware of the new preservatives, (not that new any more), that is used in pressure treated lumber will deteriorate any fasteners, tyco hangers, galvanized decking etc.. that it comes in contact with. You have to use double galvanized or stainless steel hardware. A lot of people were not aware of this and their decks were actually falling off their houses after several months and metal roof decking will rot if felt paper was not used to separate the curb blocking from the decking .
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Old 02-05-2009, 04:33 PM
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Default Re: Problems linked to Chinese-made drywall

Are you talking about borate treated wood causing fastener corrosion?
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Old 02-05-2009, 05:12 PM
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mattie - 2/6/2009 7:20 AM

So who were the distributors of this stuff? Lowes, Home Depot, Menards?
You'll know it when you see it.


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Old 02-05-2009, 05:27 PM
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Default Re: Problems linked to Chinese-made drywall

For the record, Lowes, Home Depot and Menards are not "distributors" of materials.
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Old 02-05-2009, 05:40 PM
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Default RE: Problems linked to Chinese-made drywall

we had a room addition done. at the same time we also added a brand new expensive 4 ton Lennox AC system and air handler. this is what the sulfur from Chinese drywall did to our coil in just over 12 months. the soldering literally corroded away around several joints and allowed all the Puron refrigerant to leak out. came home and the house was 90+ inside........thats how we knew we had a problem. Lennox replaced it under warranty, but that was before we knew about the bad drywall.

the deal is, as long as it is sealed with paint then the sulfur gas is sealed in. however, who paints both sides of drywall, and i'm not tearing it down.

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Old 02-05-2009, 05:56 PM
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Default Re: Problems linked to Chinese-made drywall

Drywall is made of the chemical Calcium Sulphate. (CaSo3)
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Old 02-05-2009, 06:00 PM
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local news articles around here were saying China admitted using waste sludge from a coal plant in their drywall which caused the current corrosion and smell issues.
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