Just about all the homes in my small town get termite damage at one time or another. Formerly you had a choice between methyl bromide (thankfully now banned) and Vikane fumigant (a Dow product – need to know anything more?).The home gets tented, you move out for 24 hours, they fumigate, you move back in. I would never do this. If it’s going to kill termites several inches inside the wood, I don’t believe that there will be no residue or eventual ill effects.