In this post, we will follow up on our last blog entry about defective drywall in U.S. homes and reports of damage to inside components of AC and heating systems.
In case this topic is new for you, here’s a brief summary: Some types of drywall (aka sheetrock, gypsum wallboard, etc.) are being reported to emit hydrogen sulfide, which combines with moisture inside homes and building and damages copper in air-conditioning and heating equipment, systems and wiring. There have been complaints of other types of effects (to electronic equipment; and from humans) but our focus in on HVAC systems. This is a developing story that first aired earlier this year. If estimates of the number of affected homes and the cost per home to fix the problem is accurate, we are puzzled as to why this is not getting more national mainstream media attention.
The plot seems to be thickening, because earlier reports mostly focused on drywall imported from China. However, now some recent reports are stating that sulphur gasses are being emitted from drywall from sources other than China. While the reason(s) that the drywall is producing hydrogen sulphide is still being studied and debated, the effects to A-coils and other inside AC and heating equipment look like a big deal to us. As is typically the case, determining who will eventually pay for the damage will probably drag on and on. In the mean time, some unlucky homeowners are in a real fix. Some say they can’t live in the house any longer, but and can’t sell it or rent it either.
Below , we are including links to the Consumer Products Safety Commission CPSC, and also a report from the CBS news website on November 23.
Consumer Product Safety Commission CPSC Drywall Information Center Report
On the CPSC website, the agency states that it has received more than 2,000 reports from residents in 32 U.S. states and territories. Those complaints include health symptoms or the corrosion of certain metal components in homes, and are related to the presence of certain drywall produced in China.
CBS News Online Defective Drywall Story – November 23, 2009
This article from CBS News tell a similar story, and it involves laboratory testing for sulphur gases and countries of origin other than China.
In our opinion, it’s too early to know the scope of the potential damage. If you would like to keep up with the story, you can bookmark us and can check back here. Or if you want to receive alerts directly, check out Google Alerts and enter one of these terms: “drywall” or “defective drywall”, “drywall news”. Then you’ll receive emails directly.
If your home’s AC and heating system has been affected, please share your experiences so others can learn.