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cooling the roof
The rubber does form a slight groove, perhaps 1/8" lower than the surface. The rest of the groove is much deeper. I'm planning to paint the roof white for more coolness in the summers, and having the rubber on there would be kind of annoying, but I'll leave it in lieu of a better alternative.
My main purpose is cooling the roof, with a slight benefit of smoother air flow.
Last edited by j12piprius; 05-02-2014 at 04:10 PM..
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