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Sparkling Gutters:

What causes Tiger Striping on gutters?

There are several factors that lead to and cause gutter staining (Tiger Striping) including petroleum-based run-off (roof-shingles), tannic acid from leaves, pollution, acid rain, pollen, and dirt. These all leading to gutter staining.

These harsh contaminants along with certain atmospheric conditions lead to contaminant filled condensation and forms a bond with the gutter surface that allows the inevitable staining and blackening of the gutter face. This condensation that accumulates on the top horizontal edge of the gutter eventually runs down the gutter day after day and in short order begins the staining process.


​Grimey Gutters: