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We have an old cottage in the upper peninsula of Michigan that is sided with cedar shakes treated with creosote, most recently re-applied in the 1980s. It has held up amazingly well, but it's time for a re-coat and of course, creosote is not available.

Our plan is to wash the building with wood prep formula as if we were going to stain it (like Behr #63) and let it dry while we make minor repairs. When the wood is dry, we'll use wood hardener & filler to mitigate the minimal dry rot. When that dries, we plan to hit it with an aluminum paint sprayed from a 0.015 tip on a Graco x5 we're about to buy. Then next summer, we will wash it again and re-paint it some color other than aluminum, since that will look silly.
Does that sound like a reasonable plan?
This is NOT a fancy place. We don't care about perfection, just decent durability and of course we don't want to poison the fish in the lake 100 feet away with some crazy chemical.

Have you ever used Aluminum paint in this way? What kind do you think would work?
I see that Sherwin Williams makes a few items that might work - B59S4 (COROTHANE® I MIO-ALUMINUM) and B65S14 (INDUSTRIAL ALUMINUM
PAINT), and Benjamin Moore makes WEATHERPROOF ALUMINUM PAINT 164 - are any of those likely to work of these shingles? There info sheets don't mention wood, though i guess it seems like they would work.

Thanks for any help from experienced people!

~GoinUpNort
 

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I would be careful that the aluminum paint doesn't activate the old creosote and create nasty brown oily stains all over your paint job.

What's more, using that type of coating will not allow the shingles to 'breathe' which will likely lead to further paint failure in the way of checking and delamination.
 

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The right products for the job at hand will lessen the chance of failure.




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