The structure includes purlins (3) located between spaced metallic beams to support the cover. There is are internally insulated longitudinal walls (5) and gable walls (6). Each beam (2) is composed of two cross members (7) made of metal sections connected to the top of the beam by welding and reinforced by a gusset (8). They (7) are fixed at their base to a supporting base plate and fixed on a concrete post (4). The base plate is fixed to at each side of the beam, with base of a vertical external post (28) cooperating with the panel (29) for supporting exterior part of the sheet metal canopy (26) whose interior part rests on the string purlin (3a) of the beam. USE/ADVANTAGE - Long lasting poultry building of low cost.
