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Corrugated Metal Roofing

In the 19th century corrugated metal was developed and since then it has been a popular option for roofing as a way to protect the home and the business from the elements and keep them safe. These roofing materials can be made stronger too using cold rolling and this also extends its longevity and its endurance. But every roof needs to be looked before a decision is made as to what materials and coatings are needed. Therefore it helps to understand what is commonly available and some of the differences between the options so you can better judge which best suit each individual job.

Corrugated Metal Roofing

Stainless Steel

stainless-steel-roof This option is slightly less in strength than Galvanized steel but gives better natural resistance to corrosion. Therefore it will not need coatings re-applied over the years which can affect how the roof looks. Stainless steel keeps its initial appearance for a long time (possibly decades). If the job is in an area that sees a lot of harsh weather and environmental conditions Stainless steel may not be the best option but if the exterior and its appearance is particularly important this would be a great choice. Learn how to examine your roof to know when it needs a repair.

Galvanized Steel

galvanized-steel-roofing This has been the main material used for years in corrugated metal roofing as it is not expensive and has great properties. By galvanizing the steel manufacturers are dealing with something other untreated metals cannot handle usually, rust or corrosion. The zinc coating means a galvanized steel roof will stay rust free but there are some negatives to this material too. The main one being that over time, the zinc reacting with the oxygen causes the appearance to change over time and often people do not find the change attractive. But in practical terms its properties make it a great choice for most roofing jobs. Find out which are the best roofing shingles available.

Modern Engineered Materials

With advances in the science of materials it is now possible to use certain alloys for coating and roofing to our advantage. Steel is usually the base material for Modern Engineered Materials and then it is bonded to coatings that will give the resistance to corrosion and rust that you want, without the problem of a deteriorating appearance. With this option you can have the benefits of galvanized steel and still have the appearance option you get with stainless. The only downside to this is the cost. Such materials and coatings that are engineered are usually more expensive than traditional options and so are usually only used when that is the only option for a job.


Corrugated Metal Roofing – The Pros and Cons

Here is a look at what makes corrugated metal roofing a better choice than other roofing materials.

  • Very durable, you can expect to have 20 to 50 years of life out of them
  • Can handle high winds, heavy rainfall and easily shed snow
  • When it comes to things that all roofs need to withstand, fire, insects, rot, and mildew the corrugated metal option is highly resistant
  • Installing them is quick and simple
  • In terms of weight they are 50 to 150 pounds per square and are a lot lighter than say tiled roofing
  • Non-combustible so they get a Class A fire rating as they are very resistant to fire
  • You do not need as much roof pitch when makes these roofs less likely to leak
  • More energy efficient and that can be made even more true by making sure there is dead air space between the roof deck and the metal

Here is a look at the cons of using corrugated metal roofing

  • Denting may be an issue with some metal roofing materials which can happen if large hailstones fall. But some come with a guarantee on no denting so if large hailstones are a problem in your area just get one of those
  • Cost initially is much higher than other materials at something between $150 to $600 per square foot. But if in the long term you have no to little maintenance or repairs needed then this extra cost will just be an investment
  • Wear and tear could happen when walking on them, the finish can fade, chip, scratch or peel. But to prevent this when installing do so moving from the top going down.
  • Noise is a common issue raised concerning metal roofing – rainfall can be heard a lot clearer. But there are things you can do to counteract that such as using materials with structural acoustic barriers.


Corrugated metal roofing has its place and is a great choice when used for the right jobs. When you look at the long term picture it is cost effective, it is durable, it can look good and it will protect your building. It is not hard to see why more home owners as well as business owners are turning to metal roofing at an option.

Categories: Roof

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