Abstract: A modular constructed building includes a plurality of ground beams and a plurality of wall panels, each ground beam has a pair of surfaces and a longitudinally extending male projection interspaced between the pair of surfaces. The extending male projection is formed as a flat plate and at least able to be partially inserted into a wall panel with each of the wall panels being secured to a respective ground beam, so that each wall panel, at an end opposite the ground beam, has a lateral groove for accepting a protrusion for a T-shaped member or an X-shaped member, and an upper end of each of the wall panels is retained together through each of the wall panels and either a T-shaped member or an X-shaped member.

Abstract: A ground beam for a modular constructed building has a pair of surfaces for supporting one or more wall panels and a longitudinally extending male projection interspaced between the pair of surfaces. The projection is capable of being at least partially inserted into a wall panel. In a modular constructed building, a plurality of ground beams and wall panels are provided and a securing device is included for securing the wall panels to a respective beam.

Abstract: A flood barrier for blocking the flow of water into a building opening comprises a frame and a panel mutually-engageable therewith. The frame has a base element and a pair of spaced upright elements and is permanently sealed to a building around an opening thereof. The panel is releasably attachable to the frame such as to extend between the upright elements. The frame may also comprise an upper element such that the frame surrounds the building opening. The base element has a hook element which urges the panel into sealing contact with the frame.