Opinions of Metal roof over shingle roof

I need a new roof. My wife has decided that it needs to be a metal roof and we're in hurricane alley, so I'm cool with that. I'm reading up on just placing the metal over the shingle to save the money from the rip up. Do any roofers here have any opinions positive or negative on this?

It seems to me that it would actually double waterproof the roof with two waterproof layers. Weight might be a concern.

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  1. 11 months ago
    Anonymous

    It's a great way to create voids that trap moisture and cause fungus growth.

    • 11 months ago
      Anonymous

      Would that happen if you used firring strips to attach the metal panels to? As opposed to doing directly over the shingle, which doesn't seem wise to me.

      • 11 months ago
        Anonymous

        >used firring strips
        so in order to avoid creating voids, you want to set the panels even farther away from the roof?

      • 11 months ago
        Anonymous

        this should work.

        >used firring strips
        so in order to avoid creating voids, you want to set the panels even farther away from the roof?

        even when doing a metal roof from scratch you use Framing->Membrane->firing (length and crosswise) -> roofing material.

        The bottom gets sealed with a grate to keep bugs out and the gable has vents.

  2. 11 months ago
    Anonymous

    >to save the money from the rip up
    >PrepHole
    hmmmm

    • 11 months ago
      Anonymous

      >my wife decided
      Have her do the research and then make her own post.

      pathetic. not only is he not doing the work himself, and not even able to do the research himself, but he's not even making any of the decisions himself. what the frick is he doing on /do it yourself/?

  3. 11 months ago
    Anonymous

    >and we're in hurricane alley
    Metal will not save you.
    t. Roof ripped off by hurricane Ida

    • 11 months ago
      Anonymous

      >Metal will not save you.
      On the other hand, free rip up

    • 11 months ago
      Anonymous

      >t. Roof ripped off by hurricane Ida
      Story time?

      • 10 months ago
        Anonymous

        Not much of a story. Typical strong hurricane we just got unlucky this time, the metal roof peeled off like a sardine can. Most of the metal landed in the yard in a warped pile but some individual sheets flew up to 500+ yards away. At least the house was still standing.

  4. 11 months ago
    Anonymous

    >my wife decided
    Have her do the research and then make her own post.

    • 11 months ago
      Anonymous

      Don’t forget the breasts please

  5. 11 months ago
    Anonymous

    Hire a rolloff and strip the shingles yourself. Not hard.

  6. 11 months ago
    Anonymous

    My roof is like this. The only issue was a water leak because decades ago they used shingles to seal the transition from the main roof and an extension which deteriorated.

  7. 11 months ago
    Anonymous

    Still blows my mind that the majority of American houses have fricking tar paper mixed with a little grit as a roofing material.

    • 10 months ago
      Anonymous

      it lasts 30+ years, how long does your europoor thatched roofs last?

      • 10 months ago
        Anonymous

        50 years minimum, most well over 100 years.
        There are plenty of cases of original roofs dating back to 1800s or earlier. Pretty much maintenance-free.
        For thatch specifically they require more maintenance, usually swapping every 20 to 60 years.

        • 10 months ago
          Anonymous

          >usually swapping every 20 to 60 years
          right...

        • 10 months ago
          Anonymous

          only if it is water reed but that's not used anymore, and wheat thatch doesn't last any more than a normal roof, and the ridge has to be replaced every 10 to 14 years.

          enjoy your flammable roof, that harbors animals and mold.

          • 10 months ago
            Anonymous

            >enjoy your flammable roof

            Sorry m8, but asphalt shingles are terrible.
            It's crazy when you have a look at burn neighbourhoods, and it's all burned to the ground except the houses with ceramic tiles.

    • 10 months ago
      Anonymous

      This American doesn't and my heavy galvanized steel roof was installed using old barn metal in 1965.

      The asbestos siding is also in fine shape and since it's not friable unless the house burns down I've no reason to disturb it. (Should that happen I can buy and spray fixative on the rubble then load it into a rolloff, not hard thanks to crash recovery training. Uncle Sam uses undiluted floor wax as carbon fiber fixative.)

      Standing seam modern metal roofing is functionally best roofing. Shingles are a periodic replacement item with zero functional advantages, much heavier weight per square meter, and expensive to remove and dispose of while steel is easily recycled or used for sheds etc.

  8. 10 months ago
    Anonymous

    standing seam metal roofs seem like the best kind of roof disregarding slate, I personally worry about signal loss though, possibly having cell service deadzones doesn't sound great
    I've been wondering lately why they don't somehow attach amorphous solar panels to these steel panels or somehow cast them inside polycarbonate ones, install the roof and panel array at the same time to cut labor cost, not have to worry about ice dams or the roof rotting out from underneath. Elons' shingle roofs are kind of dumb, too many failure points and more labor intensive to install

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