Biowood Castellated Profiles Concealed Fixings is a hidden fixing system. Designed for multiple benefits over real timber achieving an architectural seamless look , negative detailing and natural timber look & feel. Biowood Castellated Profiles is alternative timber and aluminum solution for facade, soffit , ceiling, and cladding. Biowood strong points are lightweight, water resistant, flame resistant , termite resistant, low maintenance , cost savings in installation, proven time tested in Australia & International harsh conditions for commercial and residential application. Biowood products is green certified by Global Green Tag Level B.