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Old 01-11-2009, 01:40 PM   #1
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Mould on ceiling


I have noticed some blue/black mould starting to appear in 3 out of the four perimeter corners in the upstairs rooms. The second picture shows how it has also started in the middle of the room where the ceiling meets the wall. Just to clarify, all the affected walls are exterior walls.

Could this be something to do with the attic?

A couple of years ago I had the roof replaced and but not the soffits. I use a dehumidifier upstairs to remove excess moisture from the air.

What could this be? What type of specialist would take care of this problem? Thank you!
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Old 01-11-2009, 02:02 PM   #2
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Mould on ceiling


Go here for mold and ventilation info. Where a mask and don't just plunge in but get rid of it ASAP. Stop the cause. Lot's of experienced folks on this site

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Old 01-11-2009, 10:06 PM   #3
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By the time you are seeing it that much, it's already a major problem that has been ongoing for quite some time. Whatever you do, you don't want to put it off for any time.
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Old 01-15-2009, 05:43 AM   #4
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Mould on ceiling


look at the roof/gutter area for ice and/or water backups,once the problem is solved ,get a mold remediation pro
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Old 01-16-2009, 12:37 AM   #5
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I'd say payperbiz is familiar with the subject.
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Old 01-16-2009, 04:36 PM   #6
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Mould on ceiling


Thanks for the advice. I got a hold of another roofing company and they had a look in the attic and discovered that the roof shingles were not nailed in properly. The whole roof will have to be redone. The areas affected with mold are fairly small so I think they should clear up with some bleach.
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Old 01-16-2009, 06:11 PM   #7
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how were they not nailed in properly? You have any pics?
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Old 01-17-2009, 03:24 PM   #8
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I wasn't able to get enough light up in the attic to take a good picture but if you put your thumb up to the nails you can feel drops of water coming down. Also, you can see that quite a few of them are rusted. To me it looks like they missed the gum line entirely otherwise how else would water be coming through like that? Also, the roofing coming didn't install a drip edge anywhere.

Compare that to the garden shed roof that was put in by a handyman at the same time using the exact same shingles and there's not one drop of water anywhere.

Next week I'm going to get a hold of a manufacturer's rep for BP Harmony (maker of the shingles) and see if they can figure out what was done. Any suggestions on what to ask?
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Old 01-17-2009, 04:58 PM   #9
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can you get pics of the shingles?How old are the shingles? the adhesive strip on the shingles has noting to do at all with regard to the shingles being water tight.sounds like you have a ventilation problem.and maybe a drip edge is needed instead of a new roof
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Old 01-17-2009, 05:40 PM   #10
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The shingles were newly installed in May 2006. I don't have a picture and right now it's foggier than pea soup outside - you can't see anymore than 10 feet in front of you.
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Old 01-17-2009, 05:41 PM   #11
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Quote:
Originally Posted by westcoast View Post
The shingles were newly installed in May 2006. I don't have a picture and right now it's foggier than pea soup outside - you can't see anymore than 10 feet in front of you.
Sounds like you live near Cheney or the like
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Old 01-17-2009, 10:35 PM   #12
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Mould on ceiling


you most likly have a venting issue that probebly dosnt require a new roof.

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