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  1. #1
    Join Date
    Jan 2008

    Thumbs down Wet insulation around chimney...

    I recently noticed water damaged drywall around my chimney.

    The chimney runs through the center of the house and is used to vent a 20 year old gas furnace and 10 year old gas water heater.

    The chimney is concrete block with clay liner. Originally I thought I had a roof leak and the moisture was coming from melting snow but once up in the attic I found moisture leaking out of the mortar of the concrete block and some block was cracking and falling off. Apparently this had been going on for sometime because the insulation around the chimney was soaked.

    To avoid the transfer of water I pulled the insulation away from the chimney and when I did that a rather large wave heat and moisture came up from the inside of the house.

    I have no idea why my chimney is bleeding water.

    I don't know whether I should reinsulate around the damaged chimney.

    Its been about 15* here lately so even if I wanted to fix whatever is damaged on the chimney I couldn't because its too cold.

    Any ideas?
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