Thoughts on Shingle Condition

[Kenny Rigler]

Hey Guys-

This was on a house built in 2008. The south side roof line was filled with shingles that had worn granules in varying degrees. I realize my job is simply to identify and recommend repair by a roofing contractor (in this case). But I'm curious, for my own education, as to the verdict you'd all give on these shingles. Thanks.

Kenny

[dlechler]

Looks like excessive traffic on a warm day during install. I love roof pictures. I have over 1000 residentual install in my 30 years. I am doing a Walmart reroof next week in Tampa. It's about 3.5 acres. mabe take a month.
Did you check to see if the shingles in the valley have been cropted. I'll bet you $5 they are not. I can show you a way to check. Lots of leaks come from this and few installers do it. Let me know.

[Joe Funderburk, CMI]

Originally Posted by dlechler

Looks like excessive traffic on a warm day during install.

Ditto.

[James E. Braun, CMI]

To me there is just too much granule lost on the inner lower part of the shingles to be foot traffic. Your foot when walking on top of the roof would not touch these lower areas.

[dlechler]

Your foot most certainly can touch these ares. It may still not be the problem. What is your opinion on the granular imperfections.

[Greg Keene, CPI]

Possibility of hail dmamage - not big enuff stones to put dents but at least make marks -

[Peter C. Russell]

Defective product??? Those look like Owens Corning Duration shingles, not sure if they ever recalled them.

[Marcel R. Cyr]

I agree Peter, don't look like foot traffic damage that I have seen before.

[Peter C. Russell]

Hi Marcel, Looks defective to me.
Hope all is well with you.
Pete

[James E. Braun, CMI]

Originally Posted by dlechler

Your foot most certainly can touch these ares. It may still not be the problem. What is your opinion on the granular imperfections.

Next time you are on a roof look how your foot rests on the top of the shingles. There would be deeper abrasions on the very top and the edges and less in the lower middle because of the pressure applied by your foot.

[Marcel R. Cyr]

That's the way I see it too James. And when I see that happen, I am sorry guys, get off the roof.

[James E. Braun, CMI]

Never hire a roofer that wears hicking boots.

[Kenton H. Shepard, CMI]

My guess is poor quality asphalt resulting in a non-uniform granule bond to shingles. Picture number 2 (valley) might be footwear but picture number one shows granule loss across the roof that's not uniform.
Defective? Well, where does poor quality stop and defective start? How old are the shingles and what does the manufacturer's warranty say? If they seem to be a significant distance from the warranty period, I'd recommend going for replacement if the warranty terms made it worth it. Pro-rating terms might not make it worth it.

[Kenton H. Shepard, CMI]

Originally Posted by dlechler

Looks like excessive traffic on a warm day during install. I love roof pictures. I have over 1000 residentual install in my 30 years. I am doing a Walmart reroof next week in Tampa. It's about 3.5 acres. mabe take a month.
Did you check to see if the shingles in the valley have been cropted. I'll bet you $5 they are not. I can show you a way to check. Lots of leaks come from this and few installers do it. Let me know.

How do you check for cropped valley shingles David?

[Jeffery L. Haynes]

Not hail damage.
Mostly worn in valley and on some edges but not throughout.


Anyone who has laid architectural shingles for a living know that those packs weigh close to 100 pounds. Putting several packets upon walk boards to lay shingles in order to get the job done while still being able to use walk boards often result the shingles getting scuffed up in various areas...........add to traffic areas such as valleys, roofs can easily exhibit the similar signs.

Roof defects fall basically into three categories...
1. manufacturer defect
2. installation issues
3. external forces such as weather.

Most of the time is installation issues, once in a while its external forces, rarely is it manufacturer issues.

From what I see of the pictures I would comment as to their condition and if further evaluation or repairs would be warrant............... personally I dont see that......not unless you want to speculate as to the projected service life of the product.........which we dont do.