How much rainfall will Leaf Relief handle?
Controlled testing conducted by an independent laboratory (Intertek Testing Services NA Ltd) resulted in a certified flow rate for properly installed Leaf Relief equivalent to 301 inches of rain per hour for a clean roof surface extending twenty feet above the gutter. Drainage of 301 inches of rain per hour is 25 times greater than the official rainfall world record (Kilauea, Hawaii 12 inches in one hour). When the roof and Leaf Relief are covered with debris, the measured flow rate is still and astonishing 161 inches of rainfall per hour for roof sections extending twenty feet above the gutter. Q: What is the maximum roof pitch for which Leaf Relief will work properly? A: Our experience with the product has not yet shown a limitation with regard to roof pitch. Q: Does Leaf Relief allow water to overflow my gutters? A: When properly installed the Product will keep gutters from becoming clogged and overflowing as a result of the interior of the gutter or downspouts filling with debris s
