When roofing your home, it is common to have to use flashings when encountering other parts of the house like a chimney, skylight, or dormer. Flashings are thin pieces of metal sheets that are set in an overlapping pattern to prevent water entrapment and leakages. Some of the most common flashings are made of copper, lead coated copper, and lead. Lead is one of the oldest materials used for flashing, dating back to architecture books published in 1832. If you are handling lead or copper flashing as a roofer or a homeowner remember to BE SAFE. Simply washing with ordinary soap & water will not significantly reduce the spread of contamination or the danger of ingestion. Be sure to use CLEAN-ALL HEAVY METALS® HAND & BODY SOAP, formulated to bond with heavy metal residue so it simply rinses away.