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Old 08-12-2009, 03:40 PM   #1
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water damage to exterior wall with rot and mold


We had a leaky roof in the back room of our house for a while, we finally got the roof fixed and were replacing some dry wall that had become moldy, but upon removing the dry wall we found rotten, moldy wood underneath. How should we go about replacing the rotten portion of the exterior wall?
(SEE PIC)
Any help would be greatly appreciated.

-Brendan
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water damage to exterior wall with rot and mold-wall.jpg  

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Old 08-12-2009, 04:27 PM   #2
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water damage to exterior wall with rot and mold


Hard to be sure from a photo, but it could be the mycelium of dry rot.

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Old 08-12-2009, 05:10 PM   #3
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water damage to exterior wall with rot and mold


I believe you're right. I've been wondering what to do, about not only replacing the wood, but also how to keep it from spreading to the other wood. I've read about different mildicide products but it seems quite overwhelming at this point.
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Old 08-12-2009, 05:47 PM   #4
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water damage to exterior wall with rot and mold


The problem with dry rot is that unlike wet rot it can travel across plaster and brickwork to find more timber for lunch. The first step is to remove the leak which you have already done. The next step is to find out the extent of the damage and dry the area out. You then need to remove all the affected timber and also at least 1 metre of good timber back from the rotten. All rotten timber needs bagging up and burning to kill the spores. New timbers need treating. As dry rot can live in plaster or brickwork (it can't get any food from these however) you might have to have this treated. There are specialist companies that deal with timber rots, but when they see dry rot the signs come up in front of their eyes, or in your case $ signs. The Building Research Establishment has done a lot of reseach into dry rot lately, and the latest info is that if you remove all the conditions that the fungus needs to survive it will usually die after about 1 year. I could e-mail you the BRE booklet on dry rot, its recognition and control if you like.
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Old 08-12-2009, 06:22 PM   #5
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water damage to exterior wall with rot and mold


That would be cool.
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Old 08-12-2009, 06:24 PM   #6
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water damage to exterior wall with rot and mold


I need your e-mail address.
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Old 08-12-2009, 06:26 PM   #7
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sorry, bj_oldham@yahoo.com
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Old 08-12-2009, 06:33 PM   #8
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Have sent it. Hope you get OK. My computer skills need a bit more work.
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Old 08-12-2009, 06:36 PM   #9
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Have just had a failure notice. Will try again.
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Old 08-12-2009, 06:41 PM   #10
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If you don't get it try e-mailing me clarksurveys1@btinternet.com

Last edited by stuart45; 08-12-2009 at 06:42 PM. Reason: mistake
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Old 08-12-2009, 06:48 PM   #11
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water damage to exterior wall with rot and mold


Thanks a whole lot my family and I really appreciate it.

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