Design guidance for the 'Twin Skin Systems: AS Series Roof & Wall Profiles' includes information on the supporting structure, profile fixings, end and side laps, fire rating, thermal performance, control of condensation, drainage, and the incorporation of rooflights.

Design guidance can be found on pages 18 to 22 in the 'Twin Skin Systems: AS series Roof & Wall Profiles' technical brochure or by downloading the individual section via the link on the right hand side of this page.