Compare Gutter Guards
As there are a number of different types of gutter guards available it can be some what confusing as they all claim to be effective. An effective gutter guard can not afford to be partially effective or to keep "most" of the debris out of your gutter.
One thing that we do know is that many of our installations are replacements for people who had another gutter guard system installed and it has failed.
There are essentially two different designs and then differences in the materials used to manufacture the gutter guards.
Different Gutter Guard Designs
One of the oldest gutter guard designs is the "reverse curve" design which was originally patented by Mr. George Cassens in 1908. The Reverse curve systems all work on the same principle. A curved piece of metal or plastic covers your gutter. The curve allows the water to flow back into the gutter as surface tension pulls it to follow the curve.
These gutter guard systems will keep out some large debris, but many of the small pieces flow with the water directly into the gutter. This will build up over time and result in a clog, probably at the downspout.
We also get lots of complaints about the ice damming, ice build up and icicles hanging from these systems in winter.
Materials Used in Manufacture
The type of material used is really important - often they can not stand up to the environment or the stress and strain. Many of the "cheap" gutter guards are simply a plastic cover with holes in it. As can be seen from the picture on the right, plastic does just not stand up to the requirements of the job.
In fact, even many of the metal covers are flimsy and do not hold up. Here is a picture of an extruded aluminum cover taken from a house where we were replacing it with a Gutterglove system. I am sure it looked good when it was first installed but it is definitely no longer functional!