Metal is climbing to the top of buyers’ minds when it comes to which roofing material to choose, and while it may be easy to lump “metal roofs” under one category, there are actually several different types of materials to choose from – each coming with their own benefits and drawbacks. In this article we will take a closer look at four of the popular materials used for metal roofs, and what each material brings to the table.
1. COPPER
Copper roofing can be seen in architectural structures dating back to the Romans! This naturally sourced material can last 100+ years, is softer than other metals (so objects like hail will bounce off), and enriches the look of a building both today and tomorrow. But what sets copper apart from other metal roofing materials is its ability to be soldered – sealing the roof completely from external elements. Copper is a premium material, so expect to pay more for this compared to other metals; it is also known to expand and contract, and if run off is not properly directed it can stain the materials around it.
2. ALUMINUM
Aluminum is an ideal material for metal roofs – especially if you are in a saltwater environment! It is the third most abundant metal on Earth, and also one of the most sustainable; 95% of all aluminum roofing is recycled. It can withstand extremely harsh weather conditions with no rusting or corroding, and is more affordable than both zinc and copper. Since aluminum is a thinner material, it is prone to dent easier than other metals and the natural color (unless you purchase a resin coated panel) washes out and becomes spotty over time.
3. ZINC
Zinc is a great option for home or business owners who may be concerned about the long term impact of their roofing material. Zinc requires less energy to manufacture compared to other metals, and homeowners do not need to worry about polluting run-off thanks to zinc’s low toxicity levels. Zinc also contains an outer layer that prevents corrosion, and scratches will fix themself over time – meaning next to no maintenance! That being said, zinc is quite expensive and may be subject to oil canning or corrosion on the underside of the panel.
4. STEEL
When we think of steel, we think of strength. Steel is highly durable and sturdy, can withstand extreme weather, and won’t expand or contract with temperature fluctuations. It can also come in a variety of finishes to mimic other metals such as copper or zinc. Compared to some of the other metals, steel is one of the least expensive materials to use for roofing. However there must be proper drainage in place or the steel will corrode.
At the end of the day, the ideal choice for which popular material to use for your metal roof will largely depend on your budget, climate, views on sustainability, and ability to perform maintenance. If you are ready to look into insulated panels for your commercial or residential roof, contact our team at 519-451-7663 or info@ecoinsulatedpanels.com.