Cracked shingles after 6 years

[Thomas A. Richey]

Just got back from inspecting a house here in Norfolk, NE. Found many cracked shingles on the roof--primarily on the south side, but also on the other sides to a lesser extent.

The owner indicated that the shingles are New Horizon (Certainteed) brand shingles, installed in 2005.

The degree of cracking seems to be quite premature for a roof of this age. Attic ventilation is present and would seem "adequate" (if such a term can be applied).

Anyone have any ideas on what's going on? I'm thinking it's a manufacturer defect, but I'm all ears.

[KEVIN WOOD]

Yes it is a manufacture defect.

[Joseph Hagarty, CMI]

Cracking has been a problem with Certain Teed Shingles

http://www.certainteedshinglesettlement.com/index.cfm

[Thomas A. Richey]

Thanks for the quick replies. Sounds like a manufacturer's defect to me, but I couldn't find anything in the Certainteed settlement information regarding New Horizon shingles made in 2005. Still, it doesn't take a settlement to have a defect!

[Gary Farnsworth]

Owens-Corning also. Just do a google search. I run into a home with these defective shingles about twice a month.

http://www.consumeraffairs.com/homeo..._shingles.html

[Gregory A. Liebig]

These shingles were installed in 2002. Dimensional shingles with every dimensional segment had crazing. What's up with this? MFG Defect? I could not find the manufacturer of the shingles as there were none visible in the attic or any other location during the inspection.

[Rick Strand]

I had two houses in a row just like that, no definitive explanation found. Would like to know too!

[Gregory A. Liebig]

Originally Posted by rstrand

I had two houses in a row just like that, no definitive explanation found. Would like to know too!

What were the ages of those two homes?

[John Scaparo]

I ran into this several times this year. Here's an example of a 8 year shingle that had several hair like cracks throughout.

[Gregory A. Liebig]

Originally Posted by jscaparo

I ran into this several times this year. Here's an example of a 8 year shingle that had several hair like cracks throughout.

Looks very similar to what I saw today. Were you in Wisconsin when you took that pic?

[John Scaparo]

Greg, I'm located in Canton, MI just east of Ann Arbor (metro Detroit). Pic was from a home Canton. I walked the roof and the entire covering that I could see was like this. I have seen others around this age to look the same but this is my worst example.

[Joseph Hagarty, CMI]

Originally Posted by gliebig

These shingles were installed in 2002. Dimensional shingles with every dimensional segment had crazing. What's up with this? MFG Defect? I could not find the manufacturer of the shingles as there were none visible in the attic or any other location during the inspection.

Certain-Teed Horizon Shangle

[Rick Strand]

Originally Posted by gliebig

What were the ages of those two homes?

This one was 2000, I assume shingles were original...

[Rick Strand]

Originally Posted by gliebig

What were the ages of those two homes?

Strangly enough, this house was also built in 2000. I had not seen this type of damage before and then two back to back. You have to think that it was a bad / defective batch of shingles

[Gary D. Rowden]

Also let’s not forget another possible factor can be extreme weather changes. With the roof decking constructed of different material than covering, this can cause the roof deck beneath the shingles to expand and contract differently, causing stress on the asphalt shingles and drastically shorting there lifespan.