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-   -   why there are white lime trangle lines on walls aroud my chimney? (http://www.houserepairtalk.com/f17/why-there-white-lime-trangle-lines-walls-aroud-my-chimney-11267/)

peter101 05-01-2011 09:31 PM

why there are white lime trangle lines on walls aroud my chimney?
 
3 Attachment(s)

After winter I found there are white triangle lines on both side walls around my brick chimney. After raining for 1-2 hours, the brick wall on both side of the chimney will have a deep color triangle area larger and lower than white triangle lines. But, I have touched the deep color area and did not fell water on the brick after rainning lightly several hours.

When it does not rain, the deep color triangle area is fading out and can only see it 50 meter away. Till now, we have rain every week.

The saddle has no counter flash on top. And the chimney side flush is a long piece of metal, not stap flash. All seals are ok.

Please help me to find possible reasons?

Thank you.


peter101 05-01-2011 09:31 PM

why there are white lime trangle lines on walls aroud my chimney?
 
3 Attachment(s)

After winter I found there are white triangle lines on both side walls around my brick chimney. After raining for 1-2 hours, the brick wall on both side of the chimney will have a deep color triangle area larger and lower than white triangle lines. But, I have touched the deep color area and did not fell water on the brick after rainning lightly several hours.

When it does not rain, the deep color triangle area is fading out and can only see it 50 meter away. Till now, we have rain every week.

The saddle has no counter flash on top. And the chimney side flush is a long piece of metal, not stap flash. All seals are ok.

Please help me to find possible reasons?

Thank you.


peter101 05-01-2011 09:31 PM

why there are white lime trangle lines on walls aroud my chimney?
 
3 Attachment(s)

After winter I found there are white triangle lines on both side walls around my brick chimney. After raining for 1-2 hours, the brick wall on both side of the chimney will have a deep color triangle area larger and lower than white triangle lines. But, I have touched the deep color area and did not fell water on the brick after rainning lightly several hours.

When it does not rain, the deep color triangle area is fading out and can only see it 50 meter away. Till now, we have rain every week.

The saddle has no counter flash on top. And the chimney side flush is a long piece of metal, not stap flash. All seals are ok.

Please help me to find possible reasons?

Thank you.


peter101 05-19-2011 05:53 AM

Re:about the cricket.
 
1 Attachment(s)
Quote:
Originally Posted by nealtw View Post
Did you get the part about the cricket, that is the roof shape behind the chimney to devert the water.
Yes, I have cricket (or: chimney saddle) behind the chimney and I found two 1" gaps between it and the chimney wall after winter and sealed it. Now, I have covered the whole chimney and the seals of chimney flashs with plastic, but I still has the deep color area after rain. The color is light than before I don't know if it is due to after one week of sunny day the water inside the wall has evaporated a lot or the covering the chimney.


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