Metallic Sheets, Coated in Copper and Lead: Copper-Lead Composite Sheet Material
Lead-coated copper sheet metal is a popular choice for coastal construction projects due to its exceptional corrosion resistance. This durable material is made by applying a thin layer of lead onto a sheet of copper through a process called electroplating.
The gauge or thickness of the metal is typically measured in ounces per square foot. Lead-coated copper is available in a variety of thicknesses and widths, with the thickness determining the weight and durability, and the width affecting the coverage area.
Lead, a dense but somewhat brittle metal, is very resistant to corrosion and is often used as a protective coating on other metals. This makes lead-coated copper an excellent alternative to regular copper sheet metal in environments that are more prone to corrosion.
One of the unique characteristics of copper is the patina that forms on its surface when it's exposed to the air. Patina starts as a green or blue-green film and continues to darken and become more lustrous over time. A type of patina called verdigris, typically blue or green in colour, forms when copper is exposed to damp air.
Lead-coated copper is primarily used in the construction industry for roofing, flashing, and gutter systems. Its durability and corrosion resistance make it an ideal choice for these applications. Paint adheres better to lead-coated copper than it does to regular copper due to the lead oxide layer.
In addition to its durability, copper is also popular for its high thermal and electrical conductivity, softness, malleability, and overall longevity. A properly installed copper roof can last up to 75 years.
When copper starts to show signs of wear and tear, it can be restored to its original state. Our services specialize in the restoration of all types of sheet metal, including copper and lead-coated copper, using the latest technologies and methods to ensure completion to your specifications. We can restore a wide range of features, including domes, steeples, decorative elements, statues, metal-clad windows and doors, and more.
For more information about our restoration services, contact Heather & Little today. Lead is also used in the construction industry to make counterweights, such as those found in elevators.
In conclusion, lead-coated copper sheet metal offers a durable and corrosion-resistant solution for coastal construction projects. Its unique properties make it an ideal choice for roofing, flashing, and gutter systems, and its ability to be restored ensures its longevity. For those seeking a reliable and long-lasting construction material, lead-coated copper sheet metal is an excellent choice.
