Do Not Mix Aluminum Gutters With Galvanized

Aluminum with galvanized steel is 0 1.

Do not mix aluminum gutters with galvanized.

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. 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. The magical number in this chart is 0 65 or less and you are fine. Anodized aluminum is considered compatible with all other metals.

Salts increase the electrical conductivity of water. Listed below are market average prices per foot for aluminum galvanized galvalume and copper gutter. 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.

Aluminum with mild steel is 0 35. Aluminum gutters however cannot be installed on roofs that use algae resistant shingles 3 or copper flashing 4. While both materials can be customized to form seamless gutters aluminium is slightly easier to work with. Aluminium gutters resist rust better than galvanized steel gutters and the metal won t thin over time.

Installation is fairly easy because aluminium is lighter than galvanized steel. Galvanized steel gutters can be installed nearly anywhere and with any roofing material. 0 is the lowest on the scale. The copper particles which help the roof resist algae growth may cause corrosion of the aluminum when moisture is present.