‘Lamellar Structures’ in Friedman’s vocabulary are long sheets (any material as long as it is bendable) or wide ribbons that can be pushed in around ongoing shapes that may be attached to itself at several points.
This idea is both an exploration of material and effect. At first Friedman used the principal in representing the Ville Spatiale in models. It enabled him to visualize the possibilities for utmost variation in executing the principle of the Ville Spatiale. There also is a relation with the use of tubes as in ‘Macaroni’ and ‘The Train’, exploring the possibility to create complex flexible spaces with simple means of construction.
But more so the principle was used by Friedman as a form of abstract expression combining the themes of reusability, Merz-work and opposition to the established world of architecture. This was most explicit in creating and naming the ‘Nonument’ in his ‘Project for MART’ in 2006.
‘Moebian Structures’ emerge when the ribbons are twisted and also sometimes folded into continuous shapes. (See in Wikipedia). Lamellar and moebian structures were used in many exhibitions dating from 2000.