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Why does the roof coating have roller or stipple marks?

April 26, 2017Coating marks roller roof stipple

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Why does the roof coating have roller or stipple marks?

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Roller or stipple marks are unintentionally left behind by the painter’s roller. In general, the longer the nap of the roller covers, the more marks you will see. Roller marks can be more pronounced if the applicator is pushing too hard on the roller or using a low-quality roller cover. These roller marks will not affect the ultimate performance of the roof coating significantly. As an aside, one of the benefits of spray-applying roof coating is that you will not get these roller marks from the spray application.