I have seen numerous homes affected by Chinese Drywall here in Brevard County, Florida. Also, Orange County, Volusia county and Indian River County as well. There are some simple tests that can performed if you suspect that your potential clients home or business has Chinese drywall, we are prepared to perform a few checks as recommended by the State of Florida to confirm the possibility of tainted drywall.
Nice Palm Bay, Florida home built in 2005. The interior had to be gutted, because it had Chinese drywall throughout. It smelt like rotten eggs and would make your eyes burn as soon as you walked in the door.
The AC's copper line is corroded. The copper on the inside of this unit is even worse.
More corrosion in the shower.
Water lines were also corroded.
(1) an initial or threshold inspection to find visual signs of metal corrosion and evidence of drywall installation during the relevant time period, and
(2) the identification of corroborating evidence or characteristics.
The identification process is two steps:
Step 1: Threshold Inspection
(a) Blackening of copper electrical wiring and/or air conditioning evaporator coils; and
(b) The installation of new drywall (for new construction or renovations) between 2001 and 2008. A positive result for this step (including both criteria) is a prerequisite to any further consideration.
Visual inspection must show:
Step 2: Corroborating Evidence
Because it is possible that corrosion of metal in homes can occur for other reasons, it is important to obtain additional corroborating evidence of problem Chinese Drywall. Homes with the characteristic metal corrosion problems must also have at least 2 of these corroborating conditions if the new drywall was installed between 2005 and 2008. For installations between 2001 and 2004, at least 4 of the followingconditions must be met. Collecting evidence of these corroborating conditions will in some cases require professional assessors and/or testing by analytical laboratories.
a) Corrosive conditions in the home, demonstrated by the formation of copper sulfide on copper coupons (test strips of metal) placed in the home for a period of 2 weeks to 30 days or confirmation of the presence of sulfur in the blackening of the grounding wires and/or air conditioning coils;
(b) Confirmed markings of Chinese origin for drywall in the home;
(c) Strontium levels in samples of drywall core found in the home (i.e. excluding the exterior paper surfaces) exceeding 1200 parts per million (ppm);
(d) Elemental sulfur levels in samples of drywall core found in the home exceeding 10 ppm;
(e) Elevated levels of hydrogen sulfide, carbonyl sulfide and/or carbon disulfide emitted from samples of drywall from the home when placed in test chambers using ASTM Standard Test Method D5504-08 or similar chamber or headspace testing;
(f) Corrosion if copper metal to form copper sulfide when copper is placed in test chambers with drywall samples taken from the home.