Metlok® HP (High Performance) is a concealed fix roof system designed for long run roofing applications. It can also be used for walling. Whilst similar to Metlok 700®, Metlok® HP features an underclip, not an overclip. The Metlok® HP underclip does not require installation over the top of the sheets which allows for bulk clip installation to the purlins. This makes Metlok® HP installation speedier and easier.