I’ve been doing a lot of additional research and investigation into the Chinese drywall that exists in our home. I took these additional pictures from the drywall installed above the master bedroom closet.
This drywall is made by Knauf and from what I can tell, was not manufactured in China by Knauf-Tianjin. Some websites claim that this drywall is from China, but the marking on this drywall does not match the markings seen on the drywall of concern according to the Florida Department of Health.
I went around our home today looking for copper corrosion. I couldn’t really find any.
Here is the ground wire from a wall switch in our master bathroom. As you can see, the copper is not corroded.
Here is a wall switch from our dining room (next to the garage which does contain the Chinese made drywall of concern). Again, no corrosion.
And, here is a wall switch from inside the garage. I do not see any corrosion on the exposed copper wiring.
Here are various pictures of other items that are (I believe to be) copper that are not showing any signs of corrosion.
The mystery continues …
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