Peeling paint problem on shake siding

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Old 07-24-06, 12:38 PM
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Question Peeling paint problem on shake siding

Our house has cedar shake siding. When we bought the house it was 7 years old and had never been painted. The shakes had been dipped before they were installed, but I'm not sure what they were dipped in. When the house was about 14 years old (13 years ago) we had it painted with an oil based paint. It seemed to be a good paint job and it was still looking pretty good (a little faded) when we decided to re-paint it 3 years ago. Again we used an oil based paint. The house looked good for about a year and then the paint started to peel, especially on the south and south west sides where the exposure to the sun is the worst. The problem is that the paint is peeling back to bare wood not to the previous paint job. Any ideas on why both layers of paint would peel off together? Trying to scrape all of the shakes on the house back to bare wood before repainting would be a huge effort. Just wondered what alternatives we might have.
 
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Old 07-24-06, 05:07 PM
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Welcome to the forums

It is hard to say what caused the paint peeled down to the raw wood. The south side is usually the first side of a paint job to fail because of the extra sun exposure.

I would recomend scraping all that is loose, priming and repainting. Hopefully the rest of the shingles will be ok but no way to say for sure.

Is there a reason you painted the shingles instead of using a stain?
 
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Old 07-24-06, 08:18 PM
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From what I've seen, moisture and heat are the main culprits when paint peels. Perhaps something about that 2nd coat of paint has caused the siding to retain moisture, causing the original coat to lose its bond? Prior to that very 1st coat of paint, was the wood primed?
 
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Old 07-25-06, 08:08 PM
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Hi Marksr,

Thanks for the reply. We've had a couple of painting contractors tell us that the effort to prep the shingles would be huge and that it would be cheaper to replace the shingles. The problem is that while the south side is the worst, there are shingles peeling on the rest of the house as well. They said that any shingle not replaced would probably end up doing the same thing. So... now maybe we will reside the house with some other type of siding and then paint it.

We used paint instead of stain because that is what the painting contractor at the time recommended. Wish I could go back and use stain instead. Oh well...

Thanks!
 
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