why there are white lime trangle lines on walls aroud my chimney?

Discussion in 'Bricks, Masonry and Concrete' started by peter101, May 2, 2011.

Help Support House Repair Talk by donating:

  1. May 27, 2011 #21

    peter101

    peter101

    peter101

    Member

    Joined:
    Apr 28, 2011
    Messages:
    15
    Likes Received:
    0
    Thank you for your explaination. I have checked the thermal insulation in attic are dry and has no water mark. The roof boards are dry. But, because the slope of the roof, the bottom of the roof is hard to reach and also filled with thermal insulation material. I did not check it and I will try now based on your suggestion.
     
  2. May 27, 2011 #22

    nealtw

    nealtw

    nealtw

    Contractor retired

    Joined:
    Nov 4, 2010
    Messages:
    24,673
    Likes Received:
    3,346
    Location:
    Chiliwack BC Canada
    When you do get in there for this inspection, take a close look at the chimey while you are there. You may want to use a peice of plywood to slide out there.
     
  3. May 30, 2011 #23

    peter101

    peter101

    peter101

    Member

    Joined:
    Apr 28, 2011
    Messages:
    15
    Likes Received:
    0
    Thanks for suggestion. What is the reason to slide out a peice of plywood and what should I look for?
     
  4. May 30, 2011 #24

    nealtw

    nealtw

    nealtw

    Contractor retired

    Joined:
    Nov 4, 2010
    Messages:
    24,673
    Likes Received:
    3,346
    Location:
    Chiliwack BC Canada
    The plywood just gives you something to lay on while you do your inspection. You are looking for wet insulation. Insulation that looks like it might have been wet. Look at the lumber for signs of water. Check around the chimney and while you are there check that air can get thru from the soffet vents. If in doubt take photos.
    I am thinking that you may have had an ice dam in the winter and water worked its way in and drained between the wall and the brick.
     

Share This Page