how to solder copper pipes right up against sheating

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by markrvillalobos, Jun 11, 2012.

  1. markrvillalobos

    markrvillalobos New Member

    Messages:
    1
    Location:
    Chicago
    hello
    I just bought an investment property and am discovering all sorts of fun in the way of burst pipes. I finally located a burst pipe in a wall in an exterior wall that has very little insulation. The building is frame construction and the pipes are only a couple inches from the old, dry exterior sheathing. What is the best way to solder copper pipes that are so close to combustible old wood?

    After I fix the pipes what is the best way to insulate the pipes- foam wrapped around the pipes plus putting fiberglass between the exterior walls and the pipes? Would spraying spray foam help or just make a mess?

    thanks,
    Mark
  2. Winslow

    Winslow Plumber

    Messages:
    450
    Location:
    Hawaii
    use a heat shield. you can buy one or make your own.
  3. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,351
    Location:
    Yakima WA
    I've had good luck with a #10 can with both ends removed and the side split. It's not pretty, but it works. If I was a pro, I'd likely buy a shield, but for an occasional joint where protection is needed, this works fine.
  4. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    Along with the heat shield spray some of this product on the surrounding wood. It works great.


    John

    [​IMG]

    Laco Flux
    La-co
    Last edited by a moderator: Feb 5, 2014
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,691
    Location:
    Cave Creek, Arizona
    To demonstrate the anti heat gel, the Laco rep sprayed it on a $100.00 bill and then held a match to it. DO NOT let it get on the pipe you are trying to solder however, because it will also repel the heat at the solder joint.
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