Moulded AC panels to meet specific requirements, such as for architectural building design. Often prefabricated steel frames with moulded panelling attached.  

Following the expansion of moulded sheeting design of the 1960s, the early 1970s saw an increase in mould innovation to suit architectural design. AC was more logistically suited to variable designs due to its lighter weight as well as sometimes being more cost-effective. Hardies appear to have dominated this space.