Architects try to realize a technically perfect wall, which would combine all the elements of a full wall and window, would satisfy the wishes of man as to the desired comfort, would be an absorber, radiator, Reflector, sun filter, electricity producer, would react by changing color to different stimuli, adapting to them just like chameleon skin, giving the animal maximum comfort.
Mechanical equivalents of such a wall, being a substitute for the ideal, are:
— Trombe water wall with a movable thermal curtain acting as a radiation reflector during the day, realized by S. Baera in Albuquerqe (N. Mexico - USA),
- automatically regulating light regrets installed in the Tate Gallery in London,
- automatically closing curtains on the basis of a photographic shutter installed in the Arab Cultural Center in Paris,
- automatically "blown in" in the evening, and in the morning "sucked" balls of polystyrene foam in the space between the panes,
- a thermochemical gel invented by Dey Chahrandi and placed in the inter-pane space, which tarnishes with increasing temperature and irradiation, and when it gets colder, becomes transparent again.

Two British architects Mike Davies and Richard Kogers propose, so that the wall works during the day so, as shown in Figure a, according to R. Rogers' wall, such a wall having a technically complicated structure, drawing b, should meet the effects: photochromatic, Photovoltaic; thermoelectric, electro-organic and piezoelectric

a) Principles of operation of the ideal multifunctional wall according to M. Davis, b) technical construction of layers in the multifunctional wall according to arch. R. Rogers