Protan membranes can be designed to create smooth, curved designs such as barrel vaults or domes. This effect can be changed by the incorporation of Protan Omega Profiles to create a seamed appearance to the completed Protan Roofing System. This effect can be changed by the incorporation of Protan Omega Profiles to create a seamed appearance to the completed Protan Roofing System. Protan materials are available in a range of colours to meet planning or corporate requirements. Protan membranes can be incorporated with other roofing products providing protection at the most vulnerable areas of design.