Galvanized steel gutters are coated with a thin layer of zinc. This process strengthens the metal and makes the gutters resistant to rusting. The average life expectancy of galvanized steel gutters is approximately 15 – 20 years.
Advantages of Galvanized Steel Gutters
Galvanized steel gutters have many advantages which make them popular among homeowners. Some of these advantages include:
- Resistant to rust;
- Resists damage and thermal warping (more so than aluminum gutters); and
- Can be customized on-site into seamless gutters.
Maintenance for Galvanized Steel Gutters
Galvanized steel gutters can last fifteen to twenty years if they are properly maintained. If gutters are seen to be peeling or rusting, they need to be dealt with to keep them from needing to be replaced. Scrape existing strips of paint from the gutters, or clean with a wire brush. Any loose paint should be removed, and gutters should be cleaned well with a degreaser.
When the zinc coating starts to break down, a white chalk-like film may appear on the metal. This should be removed with a wire brush or sand paper. Exposed areas should be wiped down and; once dry, painted with a metal primer, before being painted with a top coat. Allow the gutters to completely dry.
With zinc coated gutters it is important to regularly inspect the gutters to ensure no rust is present.