Concerning the Chinese-Drywall Issue, here is what it is about.
The 2000-2006 national housing boom combined with reconstruction projects following a series of Gulf Coast hurricanes led to a nationwide shortage of drywall. Suppliers consequently began importing drywall from China beginning in 2004, with the majority of it arriving in the country during 2006.
Already in late 2006, homeowners in the southeastern part of the country-predominantly in Florida and Louisiana-were reporting a "rotten egg" smell within their homes and complaining of irritated eyes and skin, difficulty in breathing, persistent coughs, bloody noses, runny noses, recurrent headaches and sinus infections. They also reported blackened and corroded metal-particularly copper-components in their homes, as well as frequent failure and replacement of their air conditioner evaporator coils.
There appears to be a significant correlation between the presence of Chinese-drywall and the health and corrosion issues reported by homeowners. To-date, the US Consumer Product Safety Commission (www.cpsc.qov/info/drywall/index.html) had received over 3,600 reports from homeowners in 38 states, the District of Columbia, and Puerto Rico, all of whom believed that their health symptoms and the corrosion issues in their homes were related to the presence of Chinese drywall.
So, this is another issue that you ought to be aware of especially for those in the 38 states affected by the importation of this product.
Why is this Drywall a problem?
The waste materials used by the manufacture to make the drywall contain hydrogen sulfide (H2S), carbonyl sulfide, sulfur dioxide (: that humidity causes the sulfur in the drywall to give off gases which causes the smell and the sulfur corrodes copper as well.
Chinese Drywall has a different color than US Manufactured
So, why the rotten-egg smell?
Besides the horrible odor, Sulfur corrodes copper and copper is flaking off. This drastically reduces the functional life expectancy of evaporator coils and tubing, which can ultimately cause a breakdown in these systems
This type of drywall may also corrode copper plumbing and copper wiring. Metals such as chrome, brass and silver may also be affected and kitchen faucets and drains are typically tarnished.
Notice that this HVAC Piping is fully corroded with no copper color at ALL!
Can it be Fixed-Remediated?
Here is what you would need to do.
* Replacement of all drywall in the home;
* Replacement of all electrical wiring (insulated and uninsulated); * Replacement of all copper pipes;
* Replacement of the entire HVAC system;
* Replacement of most appliances (particularly refrigerators); * Replacement of electronics, such as TVs and computers; * Replacement of all carpeting;
* Replacement of hardwood and vinyl flooring;
* Replacement of tile floor unless it can be protected during remediation;
* Replacement of cabinets and countertops (note, this ruling was based on economics as the court found that it was more cost-effective in this case to replace these items rather than attempt removal and storage);
* Replacement of trim, molding and baseboards;
* Replacement of all bathroom fixtures;
* After removal of all drywall, properties must be cleaned with HEPA vacuum, wet-wiped power-washed, and aired out for 15-30 days; and
* Property must be certified by an independent engineering company to certify that the remediated home is safe.
But hopefully before you purchased your home you identified the possible issue and moved on to the next Dwelling without Chinese-Drywall. Yet have you looked at another problem like
Mold which can cause almost as much concern as Chinese-Drywall!