Galvalume and galvanized steel roofing are affected differently by corrosion.
Galvalume metal roofing reviews.
Metal roofs can be made from a variety of metals and alloys including galvanized steel hot dip zinc galvanized g 90 and g 60 steel a less expensive thinner gauge steel often used in low end lower cost corrugated and ribbed metal panels galvalume steel zinc and aluminum coated steel a more expensive and longer lasting coating compared to g 90 galvanized steel stone coated.
Metal roofing is equivalent in cost to other premium materials from about 150 to 600.
Major costs of galvalume roofing.
Via abc metal roofing.
Galvalume is a metallic coating that is applied to the base sheet of steel that is used in metal roofing.
Aluminum has tremendous corrosion resistance so it will generally corrode more slowly than galvanized steel.
For the most part metal roofing manufacturers have improved their products to address or solve many of these concerns.
What a consumer will pay for a galvalume roofing system depends on the quality of the material.
The zinc aluminum alloy provides corrosion resistance that is in most cases superior to galvanized steel which is is coated with a very thin layer of zinc.
Though metal roofing offers many pluses a few drawbacks are worthy of mention.
The common material of choice for inland metal roofing is a zinc aluminum coated steel often referred to by the trade name galvalume.
The biggest drawback is initial cost.
The galvalume coating is made up of 55 aluminum and 45 zinc.
While i don t have much experience with this particular metal roofing manufacturer their milan shingles have a very solid reputation among roofing contractors and homeowners.
Corrosion is the death of metal roofing as we all know.
This is known as a galvanized metal.
Iron or steel can be coated with zinc.
The one exception is when the coating is penetrated scratched or chipped by falling or blowing debris for example.
Galvalume s matte finish lends itself to industrial modern and rustic projects that require a little more subtlety than traditional shiny or spangled galvanized metal panels.
Galvalume steel comes in various gauges that determine the quality and price.
For example a galvalume section that is 16 x3 known as a classic rib steel roof panel is 29 gauge steel and comes with a 25 year warranty.
It offers excellent corrosion resistance and a long service life.