In the first six months of my career I walked into a 600 sq. ft. room addition and nearly passed out. The contractor had painted every wood surface with Cuprinol wood preservative. The studs and plates, ceiling joists, rafters, even the inside of the wall and underside of the roof sheathings. There were puddles on the slab. I got all the way to the part of passing out where I lost contact with my body. I wanted to shout for help and nothing came out. I didn't go all the way out but for a moment, I was laying on the lawn unable to move. My exposure lasted less than 10 seconds.I didn't have to think about what to do and told the contractor that he would have to tear it down and start over.
Naturally the contractor went to the top of my department and he enlisted the homeowner to present an argument to keep it. The Superintendent of Building decided that once the drywall is installed, the framing could be considered to be outdoors and therefor the skull and crossbones warning is moot. More Cuprinol was applied to the outside of the wall and roof sheathing.
I was new and this ruling came from the top. I performed the rest of the inspections looking through the windows.
Four years later, on a cold winter day, I went there to inspect a water heater replacement. The lady of the house answered the door wearing an overcoat with a hood. She looked at me with tears in her eyes and said: "You let them ruin my home."
All of the windows in the entire house were open and had been open since the day the Cuprinol was applied. I could still smell the chemical. She explained that if the windows are closed, the smell overwhelms them in a few hours.
When it happened, I consulted the manufacturer, EPA and few others that I can't remember. All said that the wood must be removed and maybe the concrete slab. I presented my findings to the SOB and got an asinine ruling.
It is eleven years later and a chilly morning; I bet the windows are open at that house.
And the lady? She was correct in her accusation. I did indeed let them ruin her home and most likely, her health.