Floor panels provided with a mechanical locking system comprising a separate material in order to reduce snapping resistance during vertical displacement. For example, a separate flexible tongue, the flexible tongue including an inner part, which is connected to a holding groove at a second edge, and an outer flexible snap tab that extends upwardly and in the connected state into a cavity under a protruding tongue for locking a first and a second floor panel to each other in a vertical direction.

Floor panels provided with a mechanical locking system comprising a separate material in order to reduce snapping resistance during vertical displacement. For example, a separate flexible tongue, the flexible tongue including an inner part, which is connected to a holding groove at a second edge, and an outer flexible snap tab that extends upwardly and in the connected state into a cavity under a protruding tongue for locking a first and a second floor panel to each other in a vertical direction.

In a floor panel provided with upper and lower members which have concave spaces and side surfaces having heights and are formed as a box shape, and structured such that the upper and lower members are combined up and down so as to communicate the respective concave spaces so as to form an internal space in an inner portion, the floor panel has a joint portion in which height leading end portions of the side surfaces of the upper and lower members are folded so as to enwrap each other so as to be connected, and the joint portion is arranged in a height midstream portion of the side surface of the floor panel, and is arranged at a position which is retreated to an inner side of the floor panel in relation to the side surface in both height end sides of the floor panel.

In a floor panel provided with upper and lower members which have concave spaces and side surfaces having heights and are formed as a box shape, and structured such that the upper and lower members are combined up and down so as to communicate the respective concave spaces so as to form an internal space in an inner portion, the floor panel has a joint portion in which height leading end portions of the side surfaces of the upper and lower members are folded so as to enwrap each other so as to be connected, and the joint portion is arranged in a height midstream portion of the side surface of the floor panel, and is arranged at a position which is retreated to an inner side of the floor panel in relation to the side surface in both height end sides of the floor panel.

A composite flooring system, and method of manufacture, including a multi-element flooring diaphragm including a plurality of self-spacing surface elements mounted above a semi-rigid substrate surface using a plurality of flexible adhesive support cushions that define an air space between the multi-element flooring diaphragm and the semi-rigid substrate surface, wherein outer edge surfaces of the self-spacing surface elements are beveled and flexible surface joints of v-shaped cross-section formed between abutting self-spacing surface elements, and wherein the combination of rigid or semi-rigid self-spacing surface elements and the flexible surface joints form a substantially waterproof diaphragm as a finished surface.

A composite flooring system, and method of manufacture, including a multi-element flooring diaphragm including a plurality of self-spacing surface elements mounted above a semi-rigid substrate surface using a plurality of flexible adhesive support cushions that define an air space between the multi-element flooring diaphragm and the semi-rigid substrate surface, wherein outer edge surfaces of the self-spacing surface elements are beveled and flexible surface joints of v-shaped cross-section formed between abutting self-spacing surface elements, and wherein the combination of rigid or semi-rigid self-spacing surface elements and the flexible surface joints form a substantially waterproof diaphragm as a finished surface.

A shear transfer system is provided. In the system, a shear tie strap is attached to a first framing member, a second framing member, a third framing member, a fourth framing member, and a fifth framing member of a frame in a framed building. The second, third, fourth, and fifth framing members are orthogonal or oblique to the first framing member. More than one shear tie strap may be present in the framed building.

The invention comprises a relatively lightweight cementitious-based material panel. The cementitious-based material panel comprises a foam insulating panel having a first surface and a second surface; a first structural layer of cementitious-based material formed on the first surface of the foam insulating panel and affixed thereto; and a second non-structural layer of cementitious-based material formed on the second surface of the foam insulating panel and affixed thereto. The second non-structural layer of cementitious-based material is substantially thinner than the first structural layer of concrete. The second non-structural layer of cementitious-based material is preferably formed from polymer modified concrete, plaster or mortar. A method of making the cementitious-based material panel is also disclosed.

A plumbing assembly to support a modular bathroom positioned within a shipping container include: a subfloor positioned above a main floor by less than about 7 inches; a toilet positioned and a shower positioned on the subfloor; a sink positioned on a vertical wall adjacent the subfloor; and a plumbing assembly between the subfloor and the main floor that receives fluid from the shower, the toilet, and the sink. The plumbing assembly includes: a shower drain pipe, sink drain pipe, and a main drain pipe draining the shower drain pipe, the sink drain pipe, and the toilet. The main drain pipe diameter is 3 times larger than the shower drain pipe diameter. The shower drain pipe is connected to the main drain pipe in an eccentric position and at a radial position of the main drain pipe closest to the main floor of the shipping container.

A plumbing assembly to support a modular bathroom positioned within a shipping container include: a subfloor positioned above a main floor by less than about 7 inches; a toilet positioned and a shower positioned on the subfloor; a sink positioned on a vertical wall adjacent the subfloor; and a plumbing assembly between the subfloor and the main floor that receives fluid from the shower, the toilet, and the sink. The plumbing assembly includes: a shower drain pipe, sink drain pipe, and a main drain pipe draining the shower drain pipe, the sink drain pipe, and the toilet. The main drain pipe diameter is 3 times larger than the shower drain pipe diameter. The shower drain pipe is connected to the main drain pipe in an eccentric position and at a radial position of the main drain pipe closest to the main floor of the shipping container.