Listed below are market average prices per foot for aluminum galvanized galvalume and copper gutter.
Do not mix aluminum gutters with galvanized.
Mild steel and galvanized steel are not very reactivewith each other.
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.
Installation is fairly easy because aluminium is lighter than galvanized steel.
0 is the lowest on the scale.
Aluminium gutters resist rust better than galvanized steel gutters and the metal won t thin over time.
Salts increase the electrical conductivity of water.
Aluminum with mild steel is 0 35.
Aluminum with galvanized steel is 0 1.
Aluminium should last longer than galvanized steel.
Aluminum gutters however cannot be installed on roofs that use algae resistant shingles 3 or copper flashing 4.
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.
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.
Anodized aluminum is considered compatible with all other metals.
Prices vary by state and gutter company but these averages are what you can expect to see in your market.
I have a reference document that looks for corrosion between different metals.
The magical number in this chart is 0 65 or less and you are fine.