Underslab termite treatment

Hi Guys

I'll be having a 180m2 slab layed in a few weeks time and will need to have underslab termite treatment, Part A and perimeter treatment Part B. I've spoken to a few termite treatment companies and as expected they all recommend thier own methods and chemicals. However, today speaking with the concrete contractor he said if the area is spayed they will leave the site for 3 days, because of the chemical hazard. That started ALARM BELLS RINGING!. This slab is an extension on my existing house where I live with my wife and three young kids, last thing I want is any exposure to dangerous chemicals. I'm looking for more information on the net at the moment but hoped that you guys can add some advice and your experience to the issue.

The slab is a continuous slab on ground construction (500mm deep beams) connecting to the existing house slab using a series of 12mm bars. There are just a 4 plumbing pipe penetrations through the slab to contend with.

Any suggestions?

Thanks
Mike


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