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The most common metal roof questions answered

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Zara, Staff Writer

Monday, 22nd February 2021

Metal roofs offer a stylish and customisable alternative to traditional roof tiles. They are suitable for residential and commercial buildings and will look great for decades to come. But before you go ahead with a new metal roof, you likely have some questions about this particular material choice. 

Here are some of the most common questions people ask about metal roofs to tell you more. 

What are the benefits of a metal roof?

  • Extremely long lifespan averaging between 40-70 years

  • Weather-resistant

  • Energy efficient 

  • Environmentally friendly

  • Available in a wide range of colours

Are metal roofs noisy?

Metal roofs that were fitted in the old days were prone to noise, though this is no longer the case with modern installation techniques. These days, metal roofs are fitted with plywood and an acoustic underlay that will absorb noise instead of amplifying it.  

Another good tip is that if your roof currently doesn’t make any noise when it rains, it’s unlikely to start doing so when a metal roof is installed since it will likely already be insulated.

On the flip side, some people enjoy the sound of rainfall on a roof, as it harks back to a more nostalgic era. In either case, speak to your contractor as they can take steps to eliminate the noise or allow it to come through depending on your preferences. 

Do metal roofs attract lightning?

This is one of the biggest myths about metal roofs when in reality a metal roof has the same chance of being struck by lightning as anything else. Whatsmore, a metal roof will help dissipate the electrical charge should it be struck. 

Also, unlike a thatched roof a metal roof will not catch fire if it is struck by lightning, as metal is non-combustible. Even if embers are blown onto the roof, a metal roof will still not catch fire. The same cannot be said for a lot of other roofing materials. 

Can a metal roof reduce my energy bills?

Yes and in two different ways. Firstly, approximately 25% of heat is lost through a typical roof. So if your current roof isn’t well insulated and has loose, missing or damaged tiles, then replacing your roof will remedy the problem. A metal roof will last longer than most materials, so the benefits will continue for many years. 

Also, metal roofs reflect rather than absorb solar radiant heat. This means that during the warmer months, your roof will not draw in heat, reducing the demand for your air conditioning by between 10% and 25%. 

If your location has extremes of both temperatures, the metal roof will make your home more energy-efficient and reduce your energy bills in each scenario, making it even better value. 

Can I walk on a metal roof?

Unlike traditional roof tiles which would break in half or come apart if you stood on them, metal (especially aluminium) is super strong and can withstand foot traffic. So if your metal roof requires inspection or is used as a fire escape, it will be up to the job. 

Will a metal roof rust?

No. While some metals are prone to rust whatever you use them for, this is not the case with metal roofs, especially those which are built to modern standards. After all, a metal roof wouldn’t be able to last for decades if it rusted! Instead, you’ll get the benefit of a beautiful finish that a metal roof provides, without having to compromise on durability. 

To sum up

When choosing a material for your roof, it needs to be something that not only looks the part but will keep your home protected from the elements. Metal roofs are a costly investment, but when you consider their longevity, thermal properties, ease of installation plus the fact they are available in a wide range of colours - it’s a material well worth considering to protect the top of your building. 

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