Abstract: A modular building assembly of a building includes a modular building unit that forms a portion of the building. The modular building unit includes a structural frame having an exterior side arranged adjacent to an exterior of the building. A façade is mounted on the structural frame. A joining frame is mounted on the structural frame of the modular building unit independently of the façade. The joining frame includes a weather-proofing interface extending along an outer perimeter of the joining frame. The weather-proofing interface engages a joining frame of at least one other modular building assembly to form a seal with the at least one other modular building assembly when the modular building assembly and at least one other modular building assembly are arranged next to one another in the building.

Abstract: An exterior wall section forms a portion of an exterior wall of a building. The building has multiple floors and a framework defining the multiple floors. The exterior wall section includes a structural layer to be connected to the framework. The structural layer includes a plurality of studs connected together. An insulation layer is supported by the structural layer to insulate the building. Siding is supported by the structural layer and defines an exterior side of the exterior wall section. A perimeter of the exterior wall section is defined by the edge margins of the structural layer, the insulation layer and/or the siding. The exterior wall section includes an interlocking structure extending along the perimeter that mates with an interlocking structure of another exterior wall section to form a seal with said another exterior wall section when the exterior wall sections are connected to the building.

Abstract: An exterior wall section forms a portion of an exterior wall of a building. The building has multiple floors and a framework defining the multiple floors. The exterior wall section includes a structural layer to be connected to the framework. The structural layer includes a plurality of studs connected together. An insulation layer is supported by the structural layer to insulate the building. Siding is supported by the structural layer and defines an exterior side of the exterior wall section. A perimeter of the exterior wall section is defined by the edge margins of the structural layer, the insulation layer and/or the siding. The exterior wall section includes an interlocking structure extending along the perimeter that mates with an interlocking structure of another exterior wall section to form a seal with said another exterior wall section when the exterior wall sections are connected to the building.

Abstract: An exterior wall section forms a portion of an exterior wall of a building. The building has multiple floors and a framework defining the multiple floors. The exterior wall section includes a structural layer to be connected to the framework. The structural layer includes a plurality of studs connected together. An insulation layer is supported by the structural layer to insulate the building. Siding is supported by the structural layer and defines an exterior side of the exterior wall section. A perimeter of the exterior wall section is defined by the edge margins of the structural layer, the insulation layer and/or the siding. The exterior wall section includes an interlocking structure extending along the perimeter that mates with an interlocking structure of another exterior wall section to form a seal with said another exterior wall section when the exterior wall sections are connected to the building.