A pre-formed header assembly creates a rough wall opening for a metal door/frame, permitting completion of electrical, ducting, drywall, etc. prior to receiving/installing the door frame. The header is secured to first and second king studs at respective locations positioned beyond a desired door frame location. The header includes four different channels, one of which is utilized at two locations. The first channel has a first length to span between the king studs. The second channel has a second length, and the third channel a third length, which correspond to minimum dimensional requirements for completing the wall. The base of the second and third channels are each fixedly secured to the base of the first channel. The base of the fourth and fifth channels are fixedly secured to the first and second ends of the base of the first channel, respectively, substantially perpendicular thereto, for attachment to the king studs.

A hollow prefabricated masonry wall panel is made at a fabrication site and is configured for transportation to a build site. The hollow prefabricated wall panel has a base row and an upper row formed of hollow blocks. A slit is formed in the top of each of the two side walls of the hollow blocks of the base row and upper row, the slit having a width no larger than 20% a width of a side wall. Provisional reinforcement is provided within each slit with a bonding material, a size of the slit and the provisional reinforcement configured to provide tensile strength during transportation of the hollow prefabricated wall panel from the fabrication site to the build site. At least one mid-row is laid between the base row and upper row so the hollow cavities are aligned to preserve hollow wall cavities that can accept code required reinforcement once transported to the build site.

A cantilevered peripheral portion of a light frame construction building, having a peripherally bounded interior, is disclosed. The cantilevered peripheral portion involves two structural engineered wood rim boards each having cavities facing the exterior of the building and joined at their terminal ends at an angle. One of the two structural engineered wood rim boards supports a first group of studs located above, along, and supported by, an upper flange a first of the two structural engineered wood rim boards. At least one supporting wall stud is located beneath a lower flange of a second of the two structural engineered wood rim boards such that a cantilevered overhang configuration is formed between the first group of studs and the at least one supporting wall stud.

A lintel system for supporting masonry blocks above an opening in a structure includes a lintel configured to span a width of the opening. The lintel includes a single spanning member having a top edge, a bottom edge, and a side face extending between the top and bottom edge. Supports are disposed at longitudinal ends of the single plate member. A stiffener is attached to the lintel for reinforcing the lintel. The stiffener extends in opposed relation to the side face along at least a portion of the side face.

According to embodiments described in the specification, a wrap for a steel lintel positioned above a structural opening of a structure includes a plastic sheet member for placement on the steel lintel wherein the plastic sheet member is contoured to cover the steel lintel across a width of the structural opening; and wherein the plastic sheet member extends to cover a lower flange of the steel lintel providing a flashing at an interior angle of the steel lintel.

The disclosed devices may be viewed in several parts or used as a combination. A first disclosed embodiment is a drainage flashing element comprising a first vertical leg, a weep extending forwardly from the first vertical leg. A second vertical leg then extends downwardly from the free end of the weep. The second vertical leg is oriented in the direction opposite the first vertical leg, but substantially parallel to the first vertical leg, and in parallel to the exterior of the wythe below the weep. The first surface of the weep configured to support a course of building material, such as masonry. The first vertical leg is configured to be parallel to an interior surface of a wythe. The second half of the disclosed flashing solution discloses a sill flashing element. The disclosed sill flashing element comprises a first section and a second section. The first and said second sections are adjacent to each other, and preferably made of a single continuous piece of material. The first section has a flat top surface, with the top surface of the second section sloping on a downward angle from the top surface of the first section. It is preferably that the sill is made out of a polymeric composition which is preferably thermally isolating, waterproof, and resists rust and decay.

A construction block comprising: two or more support members each of which has a first face and a second face opposite the first face and comprises a hollow between the first and second faces, said hollow having openings facing in a direction transverse to a direction normal to the first and second faces, said opening configured for receiving at least a portion of a tenon element allowing two such construction blocks to be assembled; a frame arrangement connecting the support members to each other, said frame arrangement having external segment(s) extending from at least one of the first and second faces in a direction away from the hollow; a first panel conterminous with the first faces; and a second panel conterminous with the second faces; wherein at least a portion of the external segment of the frame arrangement is contained within one of the first and second panels.

According to embodiments described in the specification, a wrap for a steel lintel positioned above a structural opening of a structure includes a plastic sheet member for placement on the steel lintel wherein the plastic sheet member is contoured to cover the steel lintel across a width of the structural opening; and wherein the plastic sheet member extends to cover a lower flange of the steel lintel providing a flashing at an interior angle of the steel lintel.

A containment device including a dry curtain, adapted to be deployed for the containment or re-containment of a discharge area, such as an opening, e.g. a door, in response to an explosion. The device includes a ballast bar in the lower portion of the curtain, the ballast bar including cylinders of high-density foam alternated with cylinders of compressible low-density foam.

A system for traversing an opening of a construction element the system including a elongated housing with two extendable elements configured to reside at least partially within the housing. The extendable elements may extend beyond the housing and may include flanges or ledges which may engage the ends of a construction element, which may be a wall, and thus allow the system to traverse the opening of a construction element, such as a window or door. The system may allow a user to easily manipulate the system to fit a plurality of openings and reuse the system a countless number of times.