The copper particles which help the roof resist algae growth may cause corrosion of the aluminum when moisture is present.
Do not mix aluminum gutters with galvanized.
Listed below are market average prices per foot for aluminum galvanized galvalume and copper gutter.
Aluminium gutters resist rust better than galvanized steel gutters and the metal won t thin over time.
0 is the lowest on the scale.
Comparing aluminum and galvanized gutters can be a hard task as they have similar features however there are some differences that can make you lean the scale and pick the most suitable material for your property.
While both materials can be customized to form seamless gutters aluminium is slightly easier to work with.
Aluminum with galvanized steel is 0 1.
I have a reference document that looks for corrosion between different metals.
Prices vary by state and gutter company but these averages are what you can expect to see in your market.
The magical number in this chart is 0 65 or less and you are fine.
Salts increase the electrical conductivity of water.
Aluminum with mild steel is 0 35.
All you need to do is investing some of your time on a research or seeking for professional advice to get help on this concern.
The discharge from drain pipes on rooftop air conditioning units can be very corrosive particularly if the piping is copper and the drainage goes into galvanized steel scuppers conductor heads or gutters.
Mild steel and galvanized steel are not very reactivewith each other.
Aluminum gutters however cannot be installed on roofs that use algae resistant shingles 3 or copper flashing 4.
Aluminium should last longer than galvanized steel.