A clothes dryer exhaust vent (dryer vent) and the method of installation in a residential or commercial building exterior foundation wall, during construction of a building, to save the expense and costs of a clothes dryer exhaust vent installation after a building has been constructed, to reduce repair and additional construction costs. The dryer vent has a rigid wall mounting plate (plastic or metal) that is mounted in the construction block array of an exterior building foundation wall while the wall is under construction. The clothes dryer exhaust vent includes a clothes dryer exhaust vent tube connected through the rigid, wall mounting plate (manually removable), an exterior (outdoors) hemispherical-shaped clothes dryer vent open end cover assembly, manually removable for cleaning and removing lint, said cover assembly including a clothes dryer exhaust vent flapper valve.

A method of constructing a prefabricated wall structure comprising orienting interspaced stud molds having an H-shaped channel shape cross sections and edges defining an open portion of the channel shape, in a horizontal configuration within a framing means having a top, bottom, and sides and providing containing walls of the mold such that the edges of the molds form uppermost parts of the stud molds and are located within an essentially horizontal plane within the framing means; the stud molds being spaced equally between the top and bottom framing means to thereby create a space above and below, wherein the stud molds and framing means create cavities that are in fluid communication with one another; positioning rigid insulation panels within the framing means, to form a continuous surface within the framing means; pouring concrete into the enclosed forms so as to cover the rigid insulation panels and to fill the stud molds thereby forming the prefabricated wall structure, permitting the poured concrete to set; and removing the wall structure.

A dual channel drainage seal for enclosing a joint between a slab and a foundation sidewall of a subterranean area. The drainage seal includes and lower channel and an upper channel stacked over the lower channel. The lower channel is affixed on top of the slab and against the sidewall to form and enclosed channel for retaining and routing radon and/or water seepage at the joint to a sump pit. The upper channel is open on top and configured to capture and route water seepage from the sidewall above to the sump for discharge, thereby protecting the interior portions of the slab from radon and water damage.

A composite drainboard includes a patterned substrate core having an inward surface, and opposed outward facing surface. The substrate core comprises a plurality of projections, forming concavities on the inward surface. A first geotextile membrane is attached to the substrate core and covers the outward facing surface. A second membrane is attached to the substrate core to cover the inward facing surface and the concavities to provide a substantially smooth coating to the inward surface. The second membrane at least partially absorbs a liquid applied waterproofing.

An integral polymer grid with a plurality of interconnected, oriented polyethylene terephthalate strands and an array of openings therein is made from a polyethylene terephthalate sheet-like starting material having holes or depressions therein that form the openings when the sheet-like material is uniaxially or biaxially stretched. The grid has a higher tensile strength to weight ratio and a higher creep reduced strength to weight ratio than corresponding ratios associated with a grid made from a non-polyethylene terephthalate starting material.

A footing plate (10) including a planar web (12) through or from which a plurality of tubes (14) pass, the tubes (14) being adjacent to the edges of the planar web (12) and being disposed at angles to the planar web (12), none of the angles being 90°, the tubes (14) being sized to permit the passage therethrough of pins (18) for fixing into underlying ground, the upper face of the planar web (12) optionally being provided with a plurality of holes to accept bolts for retaining means to receiving a post, pole or upright structural beam, the planar web (12) also being provided with a downwardly extending flange (16) from at least one of the edges of the planar web (12).

An apparatus and method for endwise connecting subterranean barrier members is disclosed. The apparatus includes at least two barrier members with each barrier member extending between top and bottom edges. Further, each barrier member has a side first edge having a flange defining a first connector and an opposed second side edge having a channel defining a second connector. The channel is sized and shaped to receive the flange of an adjacent barrier member in slidable interconnection therein. The apparatus further include a first side panel shaped to lie against a first side of the barrier members, a second side panel shaped to lie against a second side of the barrier members and a bridging plate located between the first and second panel members so as to bridge a gap therebetween, wherein the gap has a width corresponding to a width of the first and second barrier members. The associated method is directed toward creating the apparatus.

An apparatus and method for endwise connecting subterranean barrier members is disclosed. The apparatus includes at least two barrier members with each barrier member extending between top and bottom edges. Further, each barrier member has a side first edge having a flange defining a first connector and an opposed second side edge having a channel defining a second connector. The channel is sized and shaped to receive the flange of an adjacent barrier member in slidable interconnection therein. The apparatus further include a first side panel shaped to lie against a first side of the barrier members, a second side panel shaped to lie against a second side of the barrier members and a bridging plate located between the first and second panel members so as to bridge a gap therebetween, wherein the gap has a width corresponding to a width of the first and second barrier members. The associated method is directed toward creating the apparatus.

Presented is an apparatus for radon and other soil gas mitigation. The apparatus includes an outer sleeve substantially cylindrical in shape and formed using one or multiple modular structures having foldable flaps with openings. The apparatus further includes a lid for closure of a top opening of the outer sleeve. The lid includes pipe flange(s) configured thereon for allowing a suction pipe to connect at its one end. During operation, other end of the suction pipe is operationally connected to operating inline fan which when operated exerts maximum negative pressure on the surrounding soil to entrain various soil gases that needs to be drawn out of the soil gas prone site (Eg. building).

A corner cover for protecting a ground-interface surface is disclosed, including a first plate; a second plate, wherein the second plate is positioned substantially perpendicular to the first plate; a central protrusion, wherein the central protrusion is positioned at a joint between the first plate and the second plate, further wherein the central protrusion having a first end and a second end; a pointed blade, wherein the pointed blade is formed at the first end of the joint between the first plate and the second plate; and a lip, wherein the lip is positioned at the second end of the central protrusion.