Is there any kind of debris that makes Leaf Defier™ ineffective?
We have tested the effect of every common type of debris. This includes leaves, twigs, seeds, pine needles, pine cones, pollen, dirt, shingle grit, gravel; you name it. Not one of these prevented Leaf Defier™ from keeping the gutter system free of debris, unclogged and free flowing. Unless blocked from the wind, most debris will dry up and blow away. Our tests show that with common debris resting on top of Leaf Defier™, water makes its way around and through the debris, Leaf Defier™ and the gutter system. This holds true even during heavy water flow. NONE of the inexpensive screens or expensive gutter covers can make these claims.
