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Old style metal roofing

rlrefalo | Posted in Construction Techniques on February 22, 2008 02:45am

   Guys, I’ve got a customer asking to re roof a low slope porch roof with the same material that’s on there. It’s a galvanized steel panel, maybe 16 x 24 inches two adjacent edges folded under and two adjacent edges folded over. They interlock and are soldered. Is this still available ?

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  1. User avater
    Sphere | Feb 22, 2008 04:24am | #1

    There's tern- like products available. Most dedicated roofing installers would know of a fabricator in your area, if one exists.

    Copper is an option as well.

    Spheramid Enterprises Architectural Woodworks

    "Success is not spontaneous combustion, you have to set yourself on Fire"

  2. seeyou | Feb 22, 2008 04:28am | #2

    What you've got is a flat seam roof. I've never seen it done with galvanized, but that may be a regional thing. It's normally terne metal or copper around here. The pans are not available commercially, AFAIK, but there should be someone like me near you that can fab them for you. They need to be pre-tinned and you need the proper soldering equipment if you decide to do it yourself. The seams need to be sweated properly or they break apart from expansion and contraction.

    Here's a related thread:

    http://forums.taunton.com/tp-breaktime/messages?msg=34964.1

    http://grantlogan.net/

     

    Today we's learnin' about rawks. They's all kinds of rawks. These [picks up rock] is rawks which you throw. These here [throws rock at Rusty] is rawks that you get hit with.  E.Cuyler

    1. rlrefalo | Feb 22, 2008 05:00am | #3

         Grant, was hoping you'd see this. I'm not sure what the coating actually is, but it's definately on steel, lots of rust. I'm thinking it's from the early 1900's. Would terne have been common in rural NJ at that time? There's lots of roofs like this around here. Most people just go with some type of membrane or coating. On ones I've torn off they were embossed with the makers name that could still be read from the backside, of course the tops had lots of paint and asphalt, Should have taken a photo at the time.

        Sphere, was hoping to find already made up panels but I could get them made up . What material would be suitable? I think copper is not going to happen, they seem to be purists.

         Thanks for the help,guys.                    Rich

      1. seeyou | Feb 22, 2008 05:08am | #4

        I'm thinking it's from the early 1900's. Would terne have been common in rural NJ at that time?

        That's very likely what it is.

        http://www.follansbeeroofing.com/products/TerneII.aspxhttp://grantlogan.net/

         

        Today we's learnin' about rawks. They's all kinds of rawks. These [picks up rock] is rawks which you throw. These here [throws rock at Rusty] is rawks that you get hit with.  E.Cuyler

        1. rlrefalo | Feb 22, 2008 05:22am | #5

          Great site, sounds perfect, thanks

          Rich

      2. frammer52 | Feb 22, 2008 06:28pm | #6

        why don't you remove the rust and repaint?

        1. User avater
          Sphere | Feb 22, 2008 07:22pm | #7

          The lead is gone off the terne, it needs to go.Spheramid Enterprises Architectural Woodworks

          "Success is not spontaneous combustion, you have to set yourself on Fire"

        2. seeyou | Feb 22, 2008 08:26pm | #8

          why don't you remove the rust and repaint?

          If it's not rusted thru, that's certainly an option. But, it's 100 year old 28 gauge metal and probably pretty fragile. Terne is fairly rust resistant, but once it's got the cancer, it doesn't take long for it to rust thru.

          I've saved several of these roofs of similar vintage and it was almost as expensive as replacement. And when I got done, it was still a 100 year old roof that needed to be replaced in 10 years. I haven't seen this one, so I can't judge, but unless the maintenance has been immaculate, it's probably not worth the effort.http://grantlogan.net/

           

          Today we's learnin' about rawks. They's all kinds of rawks. These [picks up rock] is rawks which you throw. These here [throws rock at Rusty] is rawks that you get hit with.  E.Cuyler

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