Suntuf Twinwall is a fluted polycarbonate sheet that is lightweight and durable. It has excellent UV resistance and thermal insulation properties and is flame retardant. Suntuf Twinwall can be installed using PSP's simple Polycarbonate or Aluminium Glazing Systems. It also comes with a 10-year limited warranty and is available in two colours. PSP also stock a range of accessories including jointers, endcaps and fixings to complete any Suntuf Twinwall project.