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  1. #1
    Join Date
    Aug 2011
    Location
    Declo Idaho
    Posts
    4

    Default Basalt Rock House

    My house was built in 1905 out of Basalt rock. There is missing 'stuff'' inbetween the rocks. What do I use to fill in those spaces?

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,399

    Default Re: Basalt Rock House

    That "stuff" is most likely mortar.

  3. #3
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,789

    Default Re: Basalt Rock House

    I would suggest you check with local masons, because you don't normally just fill those spaces. Pointing must be properly done to be effective and with the right mortar.

    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  4. #4
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,950

    Default Re: Basalt Rock House

    I'd also contact the area masons. If that stone is native to your area, they'd know best. I usually ask the guys with the roughest hands and the grayest hair. They might know the person who did your house the first time.

  5. #5
    Join Date
    Aug 2011
    Location
    Declo Idaho
    Posts
    4

    Default Re: Basalt Rock House

    Most of the guys who would of built my house would now be builders in heaven! LOL Anyway, thanks for the advice.

  6. #6
    Join Date
    May 2008
    Location
    Pacific Northwet
    Posts
    1,577

    Default Re: Basalt Rock House

    There are different types of mortar; two of the most common are based on some kind of lime or Portland cement. It is not a good idea to mix the two. Based upon the age of the house and the location (Idaho), I would guess it's Portland cement, but only an experienced mason would be able to tell you after looking at it.

    I'm guessing that the house is near a road? Road salt will eat away at mortar over time. But then again, at over 100 years old, the mortar probably isn't holding up anyway.
    The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.

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