Abstract: An improved translucent self-supporting enclosure for building structures, consisting of a plurality of strip panels (2; 11) having a wall portion (3) and end flanges (4; 13) converging towards the inside of the panels (2, 11), as well as a split assembly profile (5; 14) engaging with elastic preloading the opposing and flanges (4; 13) of two adjacent strip panels (2; 11), in which, in the assembly profiles (5) for enclosures with a flat enclosure, there are provided grooved seats (8) for accommodating respectively an engaging tongue (10) provided in the ends of additional strip panels (2a) for forming a double-wall self-supporting enclosure, while for the construction of self-supporting enclosures with a curved surface the strip panels (11) are pre-constructed so as to be curved, and tubular profiles (14), also pre-curved, are provided as split assembly profiles (14).