Polyethylene plastic mesh
The Poly-mesh is made from a high density UV stabilised, industrial strength, low alergenic polyethylene specially treated against premature plastic embroilment. Mountain Leafscreener poly-mesh has a life expectancy in excess of 15 years depending on climatic conditions.
If you are NOT in a bushfire prone area this product is cost effective, installed the same way and does the same job of the aluminum mesh, all in all an excellent product.
Aluminium powder coated mesh
Aluminium is non magnetic, non combustible and non toxic, and has an excellent resistance to atmospheric corrosion. It has a flammability index of 0 from the CSIRO, making it the best protection available in BUSHFIRE prone areas. Aluminium mesh will out last other materials when installed on Colorbond and Zincalume gutters, and is very compatible with colorbond steel.
Aluminium is more flexible than other materials therefore conforms to the roofs profile much better, it also has a diamond profile which prevents water sheeting over the gutters. Aesthetically Aluminium is less obtrusive when on the roof, therefore is not an eyesore.