Meth residue can not only coat the surfaces of a home, but invade duct work, attics and hollow spaces as well. It can sometimes even penetrate sheetrock, which then has to be pulled out and replaced.
Of all the dangerous chemical residues left behind in lab sites, meth molecules are the most difficult to eradicate. "If you get rid of that, you can get rid of everything else," said Mazzuca.
