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bengrizz 09-24-2012 12:07 PM

New Shingles don't match
Just had a new roof put on by a professional (& according to my research reputable) roofer, looks like they did good work. However in 3 larges patches on the front slope of the roof, the shingles clearly are not the same color as all the shingles around them. They look wet compared to the others. When I talked to the crew supervisor he told me they were in fact wet, something to do with the manufacturing process and wet sand???? and that it would dry out to look like the rest, but could take a few weeks. I didn't understand, but was hoping someone here could give me some more insight, as I know almost nothing about roofing. It's been three days now of 80 plus degree temperatures and direct sun on them and they still look wet.
Thanks in advance for any advice.

rossfingal 09-24-2012 01:42 PM

What that person says is possible - maybe.
Give it some time.
What it sounds like is a different batch/run number (for the shingles that
don't match)
See if someone else chimes in! :)


Windows on Wash 09-24-2012 09:24 PM


Look at them after a hot dry day and see what they look like.

Some variance in batch runs is normal.

joecaption 09-24-2012 10:07 PM

It can even be the way they were stored. If they were outside the top few bundles can be soaked.

bengrizz 09-25-2012 12:14 PM

1 Attachment(s)
Here's a pic I took yesterday, they've been on now for 4 days of afternoon sun, each day has been over 80 degrees, no rain and that slope faces the afternoon sun. Rest of the roof matches fine.

Windows on Wash 09-25-2012 02:43 PM


Might be time to call the manufacturer and see what they say.

bcdemon 09-26-2012 07:37 AM

I have had numerous Certainteed Moire Black roofs look exactly like yours upon completion. I would wait for rain to "wash" the roof.

Certainteed told a homeowner this about the discoloration:
Some shingles get a little more algae resistant spray on them which gives them that look. A day or two of rain should fix it.

Or it could be a different lot number (batch) as rossfingal said.

seeyou 09-30-2012 03:30 PM

Pulling shingles from several bundles at a time will reduce the obviousness of slight mismatch.

rossfingal 09-30-2012 03:42 PM

Thanks for the advice "Cu"! :)
I thought that's what you're always supposed to do! :)
If I had some money for all the "blotchy" roofs I've seen (or had to fix -
I might be able to fill my gas tank) :)

gwa 09-30-2012 04:52 PM

Slight color differences are common on dark shingles. It's usually due to some being overpressed. I would file a claim with manufacturer.

Algae resistance is NOT sprayed on. Copper coated granules are mixed in that inhibit algae growth.

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