First, it is necessary to make mention that there are a number of ways of installing this product. In our opinion, the best is to just slip it into the gutter cavity to create a barrier to stop the debris and vermin. Some fix it to the top of the roof (scribe) however we avoided presenting this method here as in most cases it will void the warranty on your roof.
Before you begin gutter guard installation, examine your Gutter Guard. It has two surfaces just like a cheese grater. The guard has to be installed so it can allow rainwater to flow through making Gutter Guard a good rainwater harvester.
This surface allows rainwater to flow through.