The copper particles which help the roof resist algae growth may cause corrosion of the aluminum when moisture is present.
Aluminum gutters vs galvanized gutters.
Pros galvanized metal maintains its appearance very well for the first several years.
Aluminum gutters however cannot be installed on roofs that use algae resistant shingles 3 or copper flashing 4.
They are often considered two sides of the same coin because they are nearly the same price.
Galvanized steel gutters can be installed nearly anywhere and with any roofing material.
Galvanized gutters have an extra layer of coating that adds protection against the rainwater the weather and other physical damages.
This kind of gutters has been used in drainage systems for more than 150 years thanks to properties like corrosion resistance low cost and structural straight.
Both resist rust are quite durable and last a long time.