Recommended Gutter Mesh Hole Sizes – Apertures

Gutter Guard apertures are mandatory for continued water flow.

Gutter Guard apertures are mandatory for continued water flow.

Gutter guards come in all shapes and sizes. The aperture size (hole size) of the gutter mesh is something of great importance. The gutter mesh holes must be large enough to allow water to pass but small enough to stop leaf debris from entering. No matter how small your gutter mesh apertures are, some small particles of pollen and dust will pass through. The apertures are mandatory because you need rain water to pass through. If your apertures are bigger, larger objects like gum nuts will be able to penetrate. Sounds complicated, unfortunately it is.

At Grayson’s Gutter Guard we recommend that your gutter mesh aperture size should normally be a maximum of five millimetres in width. Another crucial factor is the strand thickness, the strands of your gutter guard are what holds the material together and gives it strength. One advantage with modern metal meshes is they can be woven with much finer strands, this means more holes per square metre of material. There are many sheet metal gutter guards on the market which have overly large strands, these systems often compensate by having larger apertures.

Close up showing the apertures of Triple-G gutter gaurd mesh

Close up showing the apertures of Triple-G gutter guard mesh

Our Triple-G mesh is a co-polymer mix of plastic and carbon black. The aperture sizes are 2.7mm by 4.7mm and the strand thicknesses are between 2.0mm to 1.5mm.

If you feel that gutter guard cannot sufficiently protect your guttering from leaf entry, ask about our gutter cleaning service. We are Melbourne’s leading gutter cleaning operators.

We hope to have the opportunity of working on your roof!