My chimney outside in the carport just started to get wet spots and not to sure why I have been using my wood stove and then it was nice out so never used it for about 3 days and then the wet spot showed up what would be causing this . Can any one let me know what is causing this

I have been using my wood stove downstairs and it was nice out so I did not use it foe a few days and on morrining after I used my wood stove I had wet spots out side on my chimney I was wandering if anyone knows how to fix it and what made it go wet
Thank you cathy

Unless your bricks were sealed that wet spot is moisture from within the bricks coming out from the heat. Do you know if the bricks were ever sealed

The house is 45-50 year old and there have been a fire place there and years ago my dad but in a wood burner so I believe that they are sealed

Hi Cathy,

You definitely have a moisture issue. The solution however may not be as described in a prior answer. Sealing of the masonry is a good idea but I doubt that is your source of moisture... in fact sealing vertically placed masonry (as like a chimney) can actually prevent moisture from escaping.

I would first take a look at the top of your chimney. Is their a chimney cap? If so is it metal or concrete/mortar? If it is not sheet metal and composed of a cement-based product this would be a point for water entry/penetration. If it is a concrete top then seal this top after making all needed masonry repairs. Also consider installing a metal flashing top fabricated and installed.

Hope this helps.

Marc