Millboards are manufactured with non-porous material, meaning that it doesn’t absorb moisture. This makes it highly stain resistant. Do not use any kind of solvent, chemicals, abrasive cleaners, sanding, sealing wax or oil, or even any household cleaners! A simple brush down and rinse with some soapy water is all that’s needed to clean Millboards. There is no need for pressure wash as there are no pours for dirt to become ingrained in! If that wasn’t low maintenance enough, unlike traditional timber or even common Wood/Plastic composites, Millboard decking also doesn’t contain any timber, flour or husk fibres (which all have sugars in them), so Millboard will not host algae or mould growth. Dimensional variation is also possible with our Our Envello® cladding boards and therefore the same manufacturing tolerances are applicable (Width: ± 3mm. Length: ± 5mm. Thickness: ± 2mm). When using our Shadow Line product, in order to achieve straight and consistent 6mm gapping between boards, it may be necessary to use our Millboard Multi-Spacers during the installation process. For further details please refer to our Envello® Cladding Installation and User Guidance in the Help & Advice section of our website.