The facade of what is perhaps the world’s first museum ever to be devoted to displaying architectural drawings, in this case pieces belonging to the Tchoban Collection, is formed by four layers: an inner rendering of cement; an 11.5-centimeter-thick brickwork; a polyethylene thermal insulation 10 centimeters thick; and finally an outer constructive shell 27 meters thick, built of on site reinforced concrete pigmented with earthy colors.

The uniqueness of the buildings’s envelope lies in its being decorated with fragments of some of the drawings sheltered within, fragments which were scanned, carved into digital patterns, and then transferred to a mold of fiberboard which was subsequently used as a positive for casting a polymer negative. Placed as a formwork, this mold – once it was fixed on the sheatings – generated the negative image of the facade’s ornamental motif.