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Why Metric Shingles?

blownonfuel | Posted in Construction Techniques on April 1, 2009 07:28am

Went to shingling the addition yesterday and actually read the instructions on the shingle wraping and found out they are metric. The funny thing is the shingle dimensions are given in inches. Why the difference? Why a english and metric shingle? The metric are a little larger than the english/standard. Layout seems to be the same or atleast close to it.

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Replies

  1. ptp | Apr 01, 2009 07:54pm | #1

    Are these three tab or architectural shingles? The architectural shingles measure 39 and some fraction inches, darn close to a meter, but I've never seen a three tab measure anything other than 36."

    1. blownonfuel | Apr 01, 2009 08:00pm | #2

      Archy Pt. So only the archy are made in both metric and standard?

  2. woodbeast666 | Apr 01, 2009 08:14pm | #3

    IKO is metric in 3 tab and dimensional. Great product 13"3/8 tall which gives you that much more coverage. Also they seem to be a heavier thicker shingle than most. Careful when gun nailing and changing from standard to metric, I constantly fix roofs where nails line up on butt seams due to the difference in stagger

    1. blownonfuel | Apr 01, 2009 09:30pm | #4

      Thanks WB.

    2. OldGuy | Apr 02, 2009 02:45am | #12

      Yeah, the organics are metric (a better product in my opinion) the fiberglass are English measure and thinner. I once saw a show where the owner of one of the shingle companies stated that fiberglass were not intended for the harsher freeze/thaw northern states.Unfortunately last year due to maybe oil prices I couldn't get IKO organics and had to settle for the fiberglass three tabs. Either way the price was outrageous.-Paul

  3. ronbudgell | Apr 01, 2009 11:25pm | #5

    blownonfuel,

    Now the secret is out and you know why Canadian roofers cover a roof about 10% faster than American roofers can.

    Ron

    1. Piffin | Apr 01, 2009 11:29pm | #6

      because that northern climate leaves that much less sunlight for working hours?;) 

       

      Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

      1. wallyo | Apr 02, 2009 02:33am | #10

        Only in the winter Piffin, in Summer northern lattitudes have more day light compared to southern we get 15 hrs 23 min in Idaho vs Miami with 13 hr 45 min vs Anchorage with 19 hr 22 min on June 20 but all in all it averages out.

        Edited 4/1/2009 7:34 pm by wallyo

        1. Piffin | Apr 02, 2009 12:30pm | #13

          joke 

           

          Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

      2. ronbudgell | Apr 02, 2009 02:40am | #11

        Piffin,

        You're probably north of me, aren't you? I'm at 44 - 28'.

        Ron

        1. Piffin | Apr 02, 2009 12:40pm | #14

          I think i'm about 44°-50' 

           

          Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

    2. blownonfuel | Apr 01, 2009 11:36pm | #7

      They should just make one big one that covers the whole roof in one shot.

      1. frammer52 | Apr 02, 2009 12:14am | #8

        They should just make one big one that covers the whole roof in one shot>>>>.

         

        Might be a tad unwieldy!>G<

      2. ronbudgell | Apr 02, 2009 02:28am | #9

        blownonfuel

        They do. I've seen lots of them. Usually blue.

        ron

  4. mowog74 | Apr 02, 2009 02:55pm | #15

    Is the roof metric? If so, then you have to use the metric shingles. My porch roof was 4x4 meters and I used standard shingles instead of metric. Leaked like a sieve.

    1. blownonfuel | Apr 02, 2009 05:58pm | #16

      Maybe that's the problem. I also need a metric hammer to install them.

      1. ronbudgell | Apr 02, 2009 10:34pm | #17

        blownonfuel

        Maybe you really have been using a metric hammer for years and have simply never realized it. The way you tell is that they are much more finely calibrated than an English one. You can go from centi-whacks to kilo-whacks in milli-whack increments.

        Ron

        1. DanH | Apr 02, 2009 10:35pm | #18

          I think mine's French. At least that's the language that it seems to understand best.
          The modern conservative is engaged in one of man's oldest exercises in moral philosophy; that is, the search for a superior moral justification for selfishness. -John Kenneth Galbraith

        2. blownonfuel | Apr 02, 2009 11:08pm | #19

          Ron, I know there is something wrong with the hammer because it never strikes the same place twice. I'm taking it back and getting a refund.

          1. frammer52 | Apr 02, 2009 11:11pm | #20

            How about a new pair of glasses, instead!>G<

          2. blownonfuel | Apr 03, 2009 12:26am | #22

            Glasses? Those came with the hammer.

          3. oldhand | Apr 05, 2009 04:17am | #29

            A hammer that never strikes the same place twice is known in the trade as a lightening hammer..

      2. rez | Apr 02, 2009 11:22pm | #21

        No, the problem is that your still using a hammer.

        Get yourself one of those foreign made nailguns assembled with the metric hex head screws.

        'course xxxPaulxxx might try shingling with hex head screws as well. 

        1. blownonfuel | Apr 03, 2009 12:29am | #23

          Good idea rez. Should I get the right or left handed version? I saw a nice set of left handed screw drivers the other day, the advertisement said buy the set and get a metric crescent wrench for free.

  5. User avater
    Matt | Apr 03, 2009 02:25am | #24

    >> Went to shingling the addition yesterday and actually read the instructions on the shingle wraping and found out they are metric. <<

    What do metric instructions look like?

    1. Piffin | Apr 04, 2009 11:24pm | #25

      everywordi nametricse ntencehast enletterss illyboy;)! 

       

      Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

      1. rez | Apr 05, 2009 03:33pm | #33

        Congratulations!

         Piffin receives the much coveted 'MrT/brownbagg One Liner' Award.

        Saaalute!View Image View ImageView Image 

        1. Piffin | Apr 05, 2009 03:53pm | #34

          Liked that pentametric line, eh? 

           

          Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

  6. MSA1 | Apr 04, 2009 11:49pm | #26

    They were probably shipped here by mistake. They are meant for houses in Canada and Europe. Did they even fit your house or did you have to cut them?

     

    Family.....They're always there when they need you.

    1. egdc | Apr 05, 2009 01:15am | #27

      I've seen and used IKOs that are metric.. I wouldn't use them anymore, but not because they're metric.. we've had a lot of problems with IKO's around here.

    2. florida | Apr 05, 2009 03:19am | #28

      Hopefully he has metric plywood on his house otherwise metric shingles may make the roof blow.

      1. MSA1 | Apr 05, 2009 04:40am | #30

        Not to mention the metric nails. 

        Family.....They're always there when they need you.

        1. ncproperties | Apr 05, 2009 05:01am | #31

          All joking aside, and not a roofer or knowing anything about shingle layout our how any of it's figured/based on I did hear a roofer this week complaining about how their (shingle manufactures, which ones? all? type? unknown) are going metric and nothing can be retro fitted now. Repairs I'm guessing. If there's any truth to this, does the plot thicken?

          1. DanH | Apr 05, 2009 06:19am | #32

            Good argument for always hanging onto a half a bundle when you get your roof done.
            The modern conservative is engaged in one of man's oldest exercises in moral philosophy; that is, the search for a superior moral justification for selfishness. -John Kenneth Galbraith

    3. blownonfuel | Apr 06, 2009 10:06pm | #35

      I'm replacing the whole roof so they will fit.

      1. frammer52 | Apr 06, 2009 11:14pm | #36

        You are one brave individual, metric and standard mix!

        1. Piffin | Apr 06, 2009 11:55pm | #37

          A true Global citizen. one to make the Praetor proud. 

           

          Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!

        2. blownonfuel | Apr 07, 2009 06:42pm | #38

          The standard are being replaced by the metric.

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