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Has it ever been proven that the Home Depot / Lowe's gutter guard modification will actually stop a rock at detrimental speed? Definitive proof?
How hard can you throw? You can test it out for us.
I do not have definitive proof of anything at this point. However, from what I remember in high school physics, the fact that there is something in the way will cause an energy loss on the projectile. Even if it makes it through, it will hit with much less force than a clean shot.
I did the plastic method instead of the metal gutter guards and used two layers. The stuff feels flexible enough to absorb a reasonable amount of force. But at "detrimental" speed? Who knows. But the way I interpret that, you may have more than just a condenser to worry about.![]()
I used the word "detrimental" to infer a speed / mass which would do appreciable damage to the condenser unit only. That could be 40mph by a 2 oz stone, could be 70mph. Also plastic will become brittle with time and varying temperatures so in a frigid Nebraska winter, just as in a wet and sun baked Florida summer, I have some doubts.Compare 2 E's with 20,000+ miles on them. One with gutter guard and one without. No brainer it works.
I considered this when making my selection. However, after feeling some of metal varieties available, I didn't really feel like one would out perform the other. At least with plastic, I get a natural black color and don't have to worry about painting, the paint chipping, or corrosion of any type.I used the word "detrimental" to infer a speed / mass which would do appreciable damage to the condenser unit only. That could be 40mph by a 2 oz stone, could be 70mph. Also plastic will become brittle with time and varying temperatures so in a frigid Nebraska winter, just as in a wet and sun baked Florida summer, I have some doubts.
I postulate that in many real world conditions it's too lightweight to be effective.