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Old 03-03-2012, 10:01 PM   #16
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is my sheathing rotting? *pics*


How about a picture tour of under the eves including a shot from the attic.

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Old 03-04-2012, 01:26 PM   #17
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is my sheathing rotting? *pics*


+1

More pictures are helpful but I would certainly prepare yourself of new roof, plywood, some structure, and proper venting.
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Old 03-06-2012, 08:58 PM   #18
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is my sheathing rotting? *pics*


Looks like your neighbors have similar roofs. Do they have the same attic problems that you are having?

Is your roof slope less than 4:12? If so, do you have a water-proof shingle underlayment installed?

Do you have a vapor barrier between the house and the attic? Do you have gaps or openings in the ceiling that vent warm,moist house air into the attic?

Do you have gable end vents or any power ventilators in the attic?
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Old 03-06-2012, 10:56 PM   #19
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is my sheathing rotting? *pics*


Well As one from the Pacific North west I can tell you right now.
1 Not enough ventilation
2. you got some real truss failure happening
3. your roof is failed.
4 you need gable vents.
5. your looking at ton of money to fix this problem!
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Old 03-06-2012, 11:40 PM   #20
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is my sheathing rotting? *pics*


You must becarefull removing the roof and wood. Is the rake exposed you have way to many penatrations in that roof. It has to be vented at the sofit and at the ridge. If you have children I would have mold special lest come out becouse it won't be air born intill you start rippen it up.Ice and water shield the whole roof 3/4 plywood becouse your roof is sagen with that 1/2" and use a Demential shingle and make shore they book them when installing them.The probley just cut of 6"off the full shingle that why u have alot of ur problem. Just make sure they are installed right.And spray foam installation would seal the deal but u must have the proper ventilation.If you really want to invest in you'r home a Metal a steel roof could save u Depending on your insurance carrier up to 35% on ur homeowners policy.Most are Energy Star Rating and qualify for Energy Tax Credit and in the summer you can save up to 40% on your summertime cooling costs especially in warm climate. And adds alot more value to ur home.And u have no dormers so that will save u money they are all cut to the same size in house. And u can all that moss won't grow on it. And aluminum Roofs also they come in about 30 Standerd colors 30yr Warranty on color fading you can get ur facia trim gutters with aluminum and they can look like wood shakes,Tiles,shingles even copper BEST OF LUCK TO YOU

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Old 03-07-2012, 12:59 AM   #21
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is my sheathing rotting? *pics*


Quote:
Originally Posted by dougger222
Looks like it could be trapped moisture from inside the attic area. A hot roof could be the cause as well as exhaust vents being dumped into the attic area. If your climate gets below freezing in the Winter this can cause this issue.

Houses with these problems I most often see the most rot on the upper part of the roof structure. By the looks of it in your pics I see even trusses that show some rot, not good!

Of course an inproperly installed roof system can also cause water to leak in and cause this.
Doug how you doing I'm new to this app. I have worked in my family roofing business doing commercial work for 20yrs now. I have put on every roofing system their is I was just wondering how somebody could put a HOT Roof on this house I work with hot just about every day. I love to learn new stuff every day if they did or could put down a 1ply modified cap sheet down first then I don't think that would leak but handling hot on a A Frame roof dangerous. How would you stage that set up let me no. Becouse I like learning new stuff Thanks Doug

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Old 03-07-2012, 10:28 AM   #22
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is my sheathing rotting? *pics*


I agree with Framer52. From the pictures you provided the roof looks like its at the end of its useful life. You definitely have a moisture issue and I think its a ventilation problem.

I would recommend a new roof with a ridge-vent. Make sure the soffit vents are clear.

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Old 03-07-2012, 12:28 PM   #23
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Some of the neighbors with newer roofs seem to have more attic vents. My roof slopes 5:12...so I dont know if there's a water-proof shingle underlayment. Thanks for pointing that out.
I had several fans plugged in up there yesterday and will run them again today to try to get more circulation to dry it out, since the sun is out.
There's no vapor barrier, just cellulose insulation along the attic floor. What kind of barrier is recommended? The attic is accessed by an opening in the ceiling with a piece of drywall acting as a door. I put plastic underneath to create seal until a more permanent door is constructed.
No gable vents or attic fans. How effective are attic fans in reducing humidity?



Quote:
Originally Posted by House Engineer View Post
Looks like your neighbors have similar roofs. Do they have the same attic problems that you are having?

Is your roof slope less than 4:12? If so, do you have a water-proof shingle underlayment installed?

Do you have a vapor barrier between the house and the attic? Do you have gaps or openings in the ceiling that vent warm,moist house air into the attic?

Do you have gable end vents or any power ventilators in the attic?
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Old 03-07-2012, 01:26 PM   #24
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is my sheathing rotting? *pics*


Some power roof vents now come with optional humidistat which acts like a thermostat but responds to humidity in the attic.

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Old 03-07-2012, 10:06 PM   #25
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is my sheathing rotting? *pics*


Quote:
Originally Posted by Nospammer View Post
Some of the neighbors with newer roofs seem to have more attic vents. My roof slopes 5:12...so I dont know if there's a water-proof shingle underlayment. Thanks for pointing that out.
I had several fans plugged in up there yesterday and will run them again today to try to get more circulation to dry it out, since the sun is out.
There's no vapor barrier, just cellulose insulation along the attic floor. What kind of barrier is recommended? The attic is accessed by an opening in the ceiling with a piece of drywall acting as a door. I put plastic underneath to create seal until a more permanent door is constructed.
No gable vents or attic fans. How effective are attic fans in reducing humidity?
Don't worry about a vapor barrier in this case.

Fix the venting and get the attic floor air sealed so that you prevent the bulk moisture transfer.

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