Will a Westech fence mildew?

Mildew feeds off organic materials. Vinyl (PVC) is non-organic and therefore does not support mildew. When mildew grows on vinyl, it actually feeds off the organic materials (e.g., dirt) that have become embedded in or stuck to the vinyl. Westech fence profiles have a high-gloss, smooth, non-porous surface, making it very difficult for organic material to attach and therefore does not promote the growth of mildew. The use of non-chalking TiO2 (titanium dioxide) further prevents most mildew. Vinyl fencing that contains chalking TiO2 deteriorates at a much faster rate when compared to non-chalking TiO2. It creates a rougher surface where dirt and mildew could attach more easily. Only under consistently damp conditions will the possibility of mildew occur. A mild solution of bleach and water will easily remove mildew.