I’m invloved in an extensive, detailed investigation of American made drywall. Haven’t found any yet that’s corrosive after hundreds of samples.
There are houses with American made drywall that have corrosion, but NONE of it has turned out to be from the drywall.
Sure, some drywall is recycled.
I’ve been to a drywall plant and watched it being made. They use less than 10% recycled material, usually scraps from bad production. You can’t use much more than that in any case.
Were you in the house I inspected?
The blackened coils, the second set of coils in the home, the first set was replaced after 2 years, would be a clue.
The smell would be another.
Then I guess the people who bought the home, which weren’t my clients, wasted two months and 40K redoing the home. This was after they had their own inspection done.
One other question, would any of us have this product in our homes?
I am aware of that Bert. 2006 was the only year, according to the CPSC that “having low or no detectable hydrogen sulfide emissions”.
Unfortunately, you a only partially correct. A great deal of tainted drywall was bought and Relabled by domestic manufacturers.
The label on the drywall cannot be used to rule out the exsistance of tainted drywall.
If the location of corrosion is just near the AC unit and no where else consider the location. We provided the other inspection that John is referring to.
If the home has a well system consider any place the water could air out. Also the storage of chemicals in a garage can cause similar corrosion.
How did the water supply for the washer look?
First, I refer to it as “toxic or tainted” drywall. Second, it might be one sheet or the whole house. If I am asked to do an inspection for this and the “built time” is correct, I normally go to the county health department site and many of them have a link for a map of toxic rock. Then do the inspection to the depth required to confirm or deny.
There was actually another inspection.
Has anyone ever considered…
Chinese drywall is used in China…
or
was Chinese drywall specifically manufactured for Export to the USA?
What is the long term health effect of the Drywall manufactured in China and used / installed in China?
The smell usually gives it away real quick. I would think it would be strange not to find signs anywhere except the AC coils. One we did in Boca, 6500 sq.ft, 3 AC, all electric clean, all fixtures clean, 2 AC clean, one air hanler looked like Eric’s picture and was located in the garage. Tainted or not?
I’ve actually found it throughout all electrical devices and copper tubing, a/c coils and yet, no odor whatsoever! Go figure.
Bert
and in addition to the staining of Copper pipe and wire, what is the health risk?
I cannot speak to the health risks. I’m not a toxicologist. Even the experts disagree on the severity of the issue. Reasoning would indicate that prolonged exposure to high levels of some of the compounds which is found in this drywall may lead to illness. Of course you can’t find two health experts that would agree, so, as a homeowner or possible homeowner I would excersize caution and would prefer not to live in a home with the contaminated drywall. I guess it comes down to a personal decision and one I personally would take very seriously.
Bert
So Chinese Drywall is OK if installed in China but not in the USA?
just looking to clarify…
Move over there for a few years and live in one of the “tainted” houses, then get back to us!:mrgreen::mrgreen:
Let me see, drywall from china that is toxic, toys from china that are toxic, milk that is toxic…anyone else see a pattern here?
While many may “suggest” toxicity.
I have yet to see anyone
“Definitively”
say the drywall, toys, etc are toxic…
What is the known health effect of having Chinese Drywall?
Would you drink the milk?
Would you live in a house with Chinese drywall?
Would you let you infant or toddler suck on Chinese toys?
How does that go…:“if it walks like a duck…”
are you suggesting that there are toys available today that are not made in China?
There are so many variables involved with this that have not been considered or researched that it is difficult to ascertain if the problem has as of yet been fully realized. The corrosive off gassing may be due to active growth of bacterial strains which require specific environmental situations which are unknown. Humidity may influence the chemical composition of the components. Temperature may play a role.
Often the condition may be misrepresented. There are grounding deficiencies which can lead to the blackening of ground and grounded conductors in a panel as well. Sulphur water does the same.
No offense to anyone, there are no experts on this subject. It is a study in progress.
Agree! You can only report what you find, nothing more nothing less.
I personally would rather live in a home with contaminated drywall than some of the other chemicals we find in homes.
I would rather live in neither John!