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  #1  
Old 10/5/18, 9:48 AM
John Mulhern John Mulhern is offline
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Default Granule loss on a 10 year old roof

I have never seen shingle granule loss to this extent, the owner told me the roof was about ten years old.
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Granule loss on a 10 year old roof-66-jpg   Granule loss on a 10 year old roof-69-jpg   Granule loss on a 10 year old roof-63-jpg   Granule loss on a 10 year old roof-74-jpg  
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  #2  
Old 10/5/18, 9:51 AM
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Default Re: Granule loss on a 10 year old roof

Are you taking drone shots on a 1 story house? Why not a ladder at the eave or walk it??? Difficult to see details in your photos.



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  #3  
Old 10/5/18, 9:52 AM
John Olson John Olson is online now
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Default Re: Granule loss on a 10 year old roof

Where are you located?
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  #4  
Old 10/5/18, 9:52 AM
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Default Re: Granule loss on a 10 year old roof

P.S. Do you have a question?



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  #5  
Old 10/5/18, 10:28 AM
John Mulhern John Mulhern is offline
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Default Re: Granule loss on a 10 year old roof

1. I don't ever walk a wet roof and 2. I didn't need to walk the roof to identify what was wrong with it.
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  #6  
Old 10/5/18, 10:29 AM
John Mulhern John Mulhern is offline
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Default Re: Granule loss on a 10 year old roof

This house is in the Western Suburbs of Chicago.
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  #7  
Old 10/5/18, 10:32 AM
John Mulhern John Mulhern is offline
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Default Re: Granule loss on a 10 year old roof

No, I don't use a drone. This was with my camera on a Spectrascope.
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  #8  
Old 10/5/18, 10:52 AM
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Default Re: Granule loss on a 10 year old roof

If it is 10 yo it would be a manufacturers defect, but most homeowners don't remember crap!




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  #9  
Old 10/5/18, 10:52 AM
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Default Re: Granule loss on a 10 year old roof

Quote:
Originally Posted by jmulhern View Post
No, I don't use a drone. This was with my camera on a Spectroscope .

It would be great if you got closer to the roof for your pictures


You post says you are Community Guest ????
You web site says you are a NACHI member .?????



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  #10  
Old 10/5/18, 1:37 PM
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Default Re: Granule loss on a 10 year old roof

The only time I listen to a homeowner is when they are informing me that there is something wrong with the house.

Where is the attic ventilation? Maybe a warranty claim, but if there's no or inadequate ventilation, forget about it.

Learn to walk on low/moderate slope single story rooftops. You're going to miss a lot of important stuff if you don't.



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  #11  
Old 10/6/18, 12:08 AM
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Default Re: Granule loss on a 10 year old roof

Quote:
Originally Posted by jmulhern View Post
I have never seen shingle granule loss to this extent, the owner told me the roof was about ten years old.
This appears to be excessive granule loss. Near uniform loss across the shingles indicates that it's not foot traffic, in which granule loss would be concentrated on the butts. Uniformity of granule loss indicates pressure washing from the ridge toward the eaves.

For comparison:

The first photo is from foot traffic. Poor resistance, probably a manufacturing defect. No claim was ever filed so we don't know.
The second is an example of damage that appears to be from pressure washing.
You can express an opinion, but either you know or you don't.
Luckily, we are not required to determine the cause of problems, only to identify that one exists and make a recommendation.

In this case mine would be:
1. If the roof were still under warranty, examination by a manufacturer's representative.
2. If not, the roof appears to have suffered functional damage that increases the chances of leakage.
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Granule loss on a 10 year old roof-6a-manufacturing-defect-jpg   Granule loss on a 10 year old roof-pressure-wash-1-copy-jpg  



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Last edited by kshepard; 10/11/18 at 12:04 PM..
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  #12  
Old 10/6/18, 6:27 AM
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Default Re: Granule loss on a 10 year old roof

I would tell the owner to prove it. That was done a long time ago.




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  #13  
Old 10/6/18, 6:53 AM
Joshua L. Frederick Joshua L. Frederick is online now
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Default Re: Granule loss on a 10 year old roof

Quote:
Originally Posted by cevans View Post
The only time I listen to a homeowner is when they are informing me that there is something wrong with the house.

Where is the attic ventilation? Maybe a warranty claim, but if there's no or inadequate ventilation, forget about it.

Learn to walk on low/moderate slope single story rooftops. You're going to miss a lot of important stuff if you don't.

Couldn't agree more with everything you said.




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