| abstract |
A building structure comprising a main steel frame structure (3) and roof (41), wall (74), window and door portions (137, 166, 142, 152) directly or indirectly attachable to the main structural support and are configured, in use, to combine to form a thermally insulative barrier (34, 37, 21) between the interior of the building and the external atmosphere, the barrier also acting to at least partially inhibit travel of air there between. |