Anybody with valleys on their roof knows the frustration of rain overrunning the gutters.  I call this a ricochet effect.   Water can pour down your valley 2 inches or more in waves that cascades over your gutter.  This is frustrating.

Solutions? An old fashioned remedy is a deflector (ie a shield) attached to the top of the gutter.  This device can redirect the water flow back into the gutter.  How big?  As long as you want with 12″ on each side.  This solution has a downside: it will trap debris heavily behind it and require frequent cleaning.  It may even generate snow build-up or ice dams.

The second solution an “L” shaped 36″ long two inch tall by one inch leg defuser (ie a “water lov”) made out of aluminum.  It has holes in it to allow the semi-defused water and will break up the heaviest water flow.  This defuser is generally installed under the 2nd row of shingles with silicone-like glue.  This second solution has the same negatives as a deflector.

The latest and greatest 21st century solution is a Barnett Valley Controller.  It is made out of impact-modified plastic appoximately 18″ long and 12″ wide it stands 1 1/2 ” tall and has slots in the top and down both sides.  It is mounted by screwing thru the leading edge of the gutter.  It can be painted to match roof color and the gutter color.  In a word it takes water like “quick sand” with little or no over-run.  Because it is made of plastic, the Barnett also helps control snow in the valley.  Kudos to Barnett.

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