The Little-Known Disadvantage of a Metal Roof

colorful metal roofs

Where I live, we have commercials on TV every fifteen minutes touting the two major local metal roof sellers. Metal roofing is gaining popularity in parts of the country. Often touted as the more frugal alternative to traditional roofing, a metal roof is supposedly more energy efficient, resists damage better, requires less maintenance, and lasts longer than asphalt shingles. Many can also be quite attractive.

They are also fire-resistant. While this is an advantage, I’ve recently discovered that it is a big disadvantage, as well. My in-laws had a metal roof on their house that burned down a few weeks ago. They believed all the hype about metal roofing and when they needed a roof repl


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12 Responses to The Little-Known Disadvantage of a Metal Roof

  1. Alexandria says:

    So True.

    My parents’ neighbors house just burned down a couple of months ago. The metal roof posed a big challenge and likely meant a smaller fire ended up being a worse fire. They gave up fighting the fire and just focused on containment – letting it destroy the house (there were also other reasons, but being able to fight the fire more quickly/easily would have no doubt salvaged more of the house).

  2. jay says:

    Wow! Good to Know.
    Until now, I thought the worst problem was the incredible racket made during a storm, as well as heat trapping.

    Hope your in-laws are OK. Shame about their home.

  3. mark says:

    Around here, they sometimes take a portable saw and cut a hole in the roof to accomplish the needed orifice.

    The house I saw blazing today on the news caught the saw on fire and it was chucked into the yard where it continued to smolder.

    When not on fire, I’d imagine the saw will go through metal as it does the wood & asphalt.

  4. Jerry says:

    Here in the West, many firefighters have fought to outlaw metal roofs for the above stated reasons as well as the fact that once you do cut through the metal, it creates sharp edges that an obviously can be hazardous to their health.

  5. room097 says:

    Metal roofing resists the growth of mildew and algae that may appear on clay tiles and other roofing materials thereby eliminating the need for pressure washing. In some cases, metal roofing may require additional coats of paint during its lifetime depending on the products used. Consumers may also wonder whether their metal roof will rust and become unsightly or weakened. Current technologies involve treatments of the metal or protective seals and paints that make metal roofing resistant to rust, so this factor can also be dismissed as a concern.

  6. Kyle says:

    Metal Roofs are a Nationwide Scam

    I own a roofing company in Erie,PA. Our company has been
    fixing leaks on metal roofs for over 15 yrs.

    “Metal Roofs are a Scam”
    Standing Seam Metal Roofs – Brink Kanga Roof agrees that standing seam roofs are pretty close to a lifetime roof. They have a great reputation because they last a long long long time.
    The paint eventually breaks down, though. but….. a good product.

    But….The scam is…..

    Exposed Fastener Metal Roofs:
    In Erie,PA Some roofing contractors are stealing the great reputation of standing seam metal roofs. They are doing so by selling and installing Exposed Fastener Metal Roofs with the “Metal Roofs Last a Lifetime Scam” It’s a fact that exposed fastener metal roofs don’t last long time at all. The rubber seals dry out within 10yrs. Then you have thousands of screw heads/holes leaking. We have been fixing metal roof leaks for over 15 yrs.

    I feel bad for people that have purchased those metal roofs. Although some of them just look right through you when you mention these things and end up getting a metal roof anyhow.

  7. Sajid Sultan says:

    I myself have a metal roof in my house but was unaware of this disadvantage. The reason might be that my field of work has me engaged most time of the day i.e. TV Advertising. Thanks for sharing this treasured information.

  8. Sorry to hear about your folks place. Overall, the benefits a metal roof offers is substantial over composite roofing and while no one ever wants their house to burn down, it happens. Here is the Pacific NW, fire fighters are well trained in dealing with metal roofs. Again, sorry.

  9. danpayne says:

    The problem with most metal roofs is that they are too slippery to walk on, particularly during a fire. The best metal is a stone coated hidden fastener system. It will not burn from the exterior. If you see footage of a fire in southern Cali, most homeowners are on their roofs with a garden hose, hosing down their roof so that fire does not spread to their home.
    Nothing burns better than a petroleum based organic asphalt shingle, throw one into a camp fire and watch the flames leap from it and the fiberglass crumbles in coastal and colder climates not to mention if you check out the class action law suits against the big manufacturers you will see lots of testimony from consumers who got as little as five years from their shingle, who can afford to replace their roof every five to twelve years.

  10. Kyle Brink says:

    Here is another problem.

    Wi-Fi Signal. Most people now have cellphones / I-pads / I-phones / desktop computers etc. How well do you think wi-fi signals work when you have a metal roof over your head? Not well.

    Have you ever had problems with your cellphone when you walk into a shopping store that has a metal roof? Not good.

    I own a large roofing company in Erie,PA. We refuse to install metal roofs. I turn down a lot of work, but it is in the best interest of the homeowner and my company in the long run.
    A lot of roofing companies know that they are an issue, but they continue to install them because it is a very easy sell to a homeowner because of all the false information online. Their is a reason why Metal roofs make up less than 10% of residential roofing.

  11. Lee Fowler says:

    Kyle, I think you are confused about wifi and cell signal. Wifi is from a router within the home and is not impacted by a metal roof. Cell signal is sometimes affected but not in every case, boosters do help.

    As for exposed fastener roofs they are not a scam in every case. Exposed fastener roofs are not a great deal more expensive than asphalt shingled roofs and you would only need to get 15 years from the roofing system to balance out pros/ cons over asphalt shingles. I do agree that improperly installed exposed fastener roofs where the screws are over tightened do tend to have problems, but backing out screws and adding new ones is not as expensive as replacing an entire roof. Ribbed panels are often used in the south where the freeze thaw cycle isn’t nearly as severe, I realize that might be different in northern states.

  12. Mike says:

    “How well do you think wi-fi signals work when you have a metal roof over your head?”

    They work perfectly. Unless for some reason a person put their wifi access point outside on their roof, which would mean they have no idea what wifi actually is.

    “Have you ever had problems with your cellphone when you walk into a shopping store that has a metal roof?”

    Sure, but there is a huge difference between the structure of a shopping mall (or large commercial building) and a house. They are not comparable and if you own a roofing company then you know that.

    I had a metal roof installed this year. My wife and I use cellphones exclusively and have noticed zero difference in signal strength. And of course my wifi works exactly the same.

    If you don’t want to sell metal roofing products, then don’t. But don’t be an ass and spread FUD.

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