You are looking more of the large manufacturing facility or chemical company type place.

I own several businesses, from the chemical industry to govtech and consumer products.

Those chemicals are obviously a deadly serious hazard & I would rather put my life & health in my own hands rather than a corporation that is only concerned with getting it clean enough to be able to legally sign off on it.

Outside of my interest in REI, I'm just a sales guy with a chemical engineering background.

PB has been found to have its structural integrity reduced compared to other materials because of the way many chemicals in public water supplies react to it, breaking it down and causing small cracks over a long period of time.

It tends to taste better for quality and have less chemicals.

You MUST cut out all wet areas, dry completely, and then treat with an anti-microbial chemical.

Find a contractor who can do the wood replacement and get a couple of quotes if you need chemical treatment or tenting of the property.

I attended the University of Kansas and earned a bachelor’s degree in chemical engineering. 

I am a Chemical Engineer by trade.