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Author Topic: Defective shingles  (Read 2913 times)
David Macy
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« on: April 08, 2009, 07:16:23 PM »

I have had 2 inspections in the last week with manufacturers defective shingles. Both roofs around 12 years old.

The first one was really bad. Today's not as bad but still a concern.

The one I did last week both roofers that were called for estimates agreed but had different estimates.

Now correct me if I am wrong but I spoke to the roofer last week and he stated one way to tell (Besides the cracking) is the shingles are 36 inches instead of 39 inches.  The ones I measured today were 36".

Pics from today.

 


* 134809 003 (Small).jpg (117.95 KB, 640x480 - viewed 442 times.)

* 134809 004 (Small).jpg (108.54 KB, 640x480 - viewed 423 times.)
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Marcel R. Cyr
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« Reply #1 on: May 24, 2009, 06:40:10 AM »

Good article here David that might interest some.

http://www.seattleroofbroker.com/ProductsAsphalt.htm Smiley
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Jay Markanich
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« Reply #2 on: May 25, 2009, 10:00:37 AM »

The top picture looks like they put a nail in the middle of the shingle or that a nail head left in the roof sheathing has come loose and begun to move upward. 

The second looks like normal cracking for a fiberglass/asphalt shingle 12 years of age.  The glues on the newer fiber shingles is stronger and does not allow for so much expansion and contraction, hence the cracking.
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Jay Markanich Real Estate Inspections, LLC
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Camille LaFrance
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« Reply #3 on: March 15, 2010, 08:38:29 AM »

I have to weigh in on this one. I have been in the home construction business for many years, and I immediately recognized the problem with those shingles is inadequate ventilation. Did you check that out?

Too much heat buildup in the attic space will cause premature shingle failure.
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David Macy
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« Reply #4 on: March 15, 2010, 09:09:35 AM »

It was a manufacturer defect with the shingle, nothing to do with ventilation or insulation on this particular house.

I just did an inspection for a roofing contractor who hired me on his prospective new house for calling out this particular roof and he replaced it under warranty from the manufacturer.

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Jay Markanich
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« Reply #5 on: March 15, 2010, 09:11:47 AM »

Hey Camille!  Welcome to the board!
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Jay Markanich Real Estate Inspections, LLC
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Dominic Maricic
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« Reply #6 on: March 17, 2010, 02:26:16 AM »

Welcome aboard Camille. New input is always greatly valued!
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