These materials may pose a hazard to human health. The process of removal is called remediation and must be done by professionals.

The metals that are used in modern construction are mostly harmless or are wrapped with protective coverings to prevent exposure. When it comes to older buildings, you may find many metals that are now known to be hazardous to your health. Renovators, energy advisors and building inspectors should be aware of these hazards and learn to identify them.

Lead:

When it accumulates in your body, Lead may cause serious health problems. It may be found in:

• paints, piping, and flashing materials around windows and doors.
• paints, piping, and flashing materialsaround windows and doors.
• FURTHER READING: "Fact Sheet on Lead" (Fact-Sheet-on-Lead.pdf 215 KB)from Canadian Water and Wastewater Association

Mercury:

This liquid metallic substance should not come in contact with skin or be digested. Mercury may be found in

• light bulb ballasts (flourescent lights),
• And old thermostats and switches.
• FURTHER READING: "Products Containing Mercury Regulations: FAQ" - Government of Canada.

Galvanized pipes:

Old galvanized pipes may deteriorate and leach into drinking water - these pipes must be disconnected and removed. Galvanized pipes may be found in older homes:

• in water pipes for supply and drainage.
• FURTHER READING: "Galvanized Plumbing" from Canadian Home Inspection Services.