@Kay March some smoke detectors have a plastic pin in the side to prevent it from turning.

We take off the outlet and switch covers (easiest to replace these as it's sometimes tough to get the odor out of plastic) and we pull out the cabinet drawers and open up all we can to let the ozone penetrate as deep as possible.

I was able to see passed the insulation and nest withing the pipe hole, there was a plastic film over the wood beneath them. 

Put all plastic panels 

There was plastic laid out over the dirt. 2 months ago he had gone down there to replace one of the AC ducts that had urine in it. 

.* Install that plastic over the windows that gets shrunk with a hair dryer each fall. 

High efficiency,  Plastic Laminate.

I stay away from the cheaper plastic heat tape, it has to be replaced every few years, and is move prone to catching fire if it crosses over itself.

They always replace it with a clear plastic blank plate though.

There is plastic vapor barrier under the vinyl plank.