What is Galvalume Steel?

quonset side panelsGalvalume steel is a type of steel that has a coating applied to its surface. This coating then provides long-lasting protection from both rust and corrosion. Galvalume steel is treated by the process of hot dipping, in which the metal parts are immersed in liquid zinc then into clean water. The hot zinc makes contact with the metal and quickly forms a protective coating.

This is different from how other paints or coatings work because Galvanized steel never dries out or cracks as it only reacts to humidity levels. The Galvalume coating can be made from aluminum or even silicone.

How is Galvalume steel best used in building applications?

This is the most commonly used type of metal in both steel quonset buildings and steel framed buildings. It’s also commonly used in a variety of other instances. We’ll look into some of them below:


Galvalume steel is widely used in the roofing industry. Asphalt shingles can also be applied to the steel as a roof covering or on its own. This protects against hail and high winds in residential and commercial buildings. While added aesthetic appeal.


Galvalume steel is used behind sheet metal siding for both commercial and residential buildings. This then adds value by protecting the sides against any major form of corrosion. This is very popular as an option as it is more cost effective and works very well in those harsh climates.


This steel can is used widely within stairs and decks. This is so since,  it is extremely durable and will not rust or corrode. Even if the area is a high people traffic area. It also provides a silent surface when walking or walking on the stairs. This can be important in a home with children, or for spaces that needs that reduced noise.

Handrails & Balustrades

Handrails & Balustrades can be made from galvalume steel. Of course the beauty is preserved without losing functionality. This is within the building’s specific need and any local building code requirements. Again if this area is a high traffic area, then you do not have to worry about corrosion because the protective coating is in place for the steel. If the building is in a high humidity area, then this steel is ideal. 

Other Fixtures

For buildings that require mailboxes, the galvalume steel is the ideal choice. It will resist the harsher weather and if needed as a protective cover or enclosure for some windows or doors, would work quite well. The Galvalume steel is also great for those finer details of outdoor furniture and a fantastic choice if you are considering building a shed.

Benefits of Using Galvalume Steel

  • Galvalume steel is treated with zinc. There are no other metals or paints involved and as a result, there are no toxic chemicals in the process. This is also environmentally safe.
  • Galvalume steel has a non-corrosive coating that protects against the elements such as rust, corrosion, and even sunlight.
  • Galvalume steel can be used on both exterior and interior surfaces of buildings while still being safe against weathering such as rainwater and sunlight penetration.
  • Galvalume steel is resistant to termites and other pests which makes it an effective, long lasting and a cost effective option.
  • Galvalume steel has a wide range of uses across various industries such as construction, chemical manufacturing, automotive and home furnishings. It is guaranteed to be durable and long lasting.
  • Galvalume steel is lightweight making it easier to handle and hang by hand, machine, crane and forklift operators when installing or maintaining buildings.

Galvalume Plus

This galvanized steel has an expanded protection from UV rays, as well as anti-corrosive. It is used in the same applications as Galvalume Steel, but in more extreme conditions such as warehouses, outdoors and extreme humidity areas. 

In addition, this treatment protects the metal against the more harmful elements including corrosive acids, caustic chemicals. The surface is also protected against Fungi, Bacteria. This makes the Galvalume steel ideal for both internal and external uses.