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What is a Home Inspection?
Shingles  XML
Forum Index » Roofing Inspections
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jdoug43
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Joined: 08/18/2015 01:45 PM EDT
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Is there a sure way to tell how many shingle layers are on a roof?

Thanks, Doug

Doug Lowery
www.dshomeinspections.com
318-675-9786
Mike Casey
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Joined: 06/28/2014 07:21 PM EDT
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Location: San Diego CA
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I don't know as I would call it a sure way, but I look at the gable edge and try to determine from there, plus what I see at the eave edge allowing for starter. Sometimes the shingles are brittle so lifting them is not recommended. Also, sometimes a new drip edge is installed over the old shingles during a re-roof and can be tricky to determine. If multiple layers many times the top layer will be a bit wavy from multiple layers below. Regardless, I always say approximately when I identify multiple layers. Oh, sometimes I can see the layers at holes cut in the attic for penetrations.

Thanks.

Mike Casey
Director of Education
Home Inspection University
www.HomeInspectionUniversity.com
www.MichaelCasey.com
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jdoug43
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Joined: 08/18/2015 01:45 PM EDT
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Mike,

I appreciate the info.

Thanks, DOUG

Doug Lowery
www.dshomeinspections.com
318-675-9786
SheehanThomson
Jedi
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Joined: 06/18/2014 11:28 PM EDT
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If I see st least 2 then my narrative says "multiple layers..." since it is sometimes hard to tell. The worst I saw was 3 asphalt layers over a wood shake/shingle roof.

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STEVE8511
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Joined: 08/26/2015 10:06 AM EDT
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Doug:
I lift up the edge and look. This time it was a different color which helped.
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Kevin
I'm on a yacht.
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Joined: 09/16/2016 11:01 AM EDT
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Location: Edmond,Oklahoma
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Something I have seen when replacing roofs is that they Roofers cut them back to hide them , so you can't see the from the rake or gable edge view. This is done when a home owner doesn't want to pay to remove the other Layer(s) and that's just one reason... So they cut them back to fool the insurance company if its a claim making them think the new roof only has one layer and all shingle were removed. It's amazing what some people to save or make a buck. Not cool ,But I've seen it done a few times when removing a roof. So because of that I never give a exact number on layers. I always just state there appears to be multiple layers on the roof and a exact number of layers is not known and may not be visible.

Kevin Groves
TrueView Home Inspections
Roofing Contractor
Licensed in Real Estate

http://www.trueviewinspect.com
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Michael Altizer
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Joined: 10/31/2014 06:20 PM EDT
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STEVE8511 wrote:Doug:
I lift up the edge and look. This time it was a different color which helped.


Yep, that's how I do it.
 
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