Most metal gutters can last between 20 and 30 years. However, one of the biggest factors that can shorten their lifespan is rust, which forms on downspouts, end caps and other parts of your gutter system over time. Severe rusting can lead to holes and cracks, preventing water from being drained properly.

 

There are many reasons why rust forms on gutters, and the good news is that this issue is preventable.

Why Do Metal Gutters Rust?

The following are some of the reasons why gutters and downspouts suffer rust over time: