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Thread: old fireplace

  1. #1
    Join Date
    Oct 2007

    Default old fireplace

    I had the fireplace in my 1896 farmhouse inspected and three people told me to tear it down because the mortar crumbles easily. Is there any way I can save the fireplace? It goes thru the center of the house.

  2. #2
    Join Date
    Jun 2009

    Default Re: old fireplace

    You should be able to repoint the mortar joints.
    Cut the existing mortar joints out to a depth of 1-1/2 inch.DO NOT REMOVE MORE THAN CAN BE REPOINTED IN A DAY.CLEAN ALL joints by brushing and flush with water.
    Repoint in two steps apply the first 3/4 inch of mortar into the joints keep moist do not let it dry out after 24 hrs apply the final 3/4 inch of mortar this mortar can be cut back to leave a resessed joint or tooled. You MUST match the existing mortar with like materials.
    An 1890 home may not have contained portland cement.
    It could be a lime mortar.
    For replacement lime mortars check on these products.
    Virginia Lime Works
    U S Hertage Group
    NHL Mortars
    Jahn mortars
    If it does have portland see Preservation Brief # 22 page # 15 has some design mixes for dated buildings.
    Also check this site

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