A prefabricated decorative quoin system includes an elongated edge column attachable to an existing wall corner. The elongated edge column may be formed by a plurality of elongated edge members interconnected end-to-end. A plurality of prefabricated quoin panels are attached to the edge column in vertical stacked relation. A lighting array disposed relative to an inner surface of the quoin panels may be used to illuminate the quoin panels.

A corner siding product may include a plurality of panels. Each panel may include a front face with a simulated pattern, a hollow back, a longitudinal length extending in an x-direction, a lateral width extending in a y-direction, and a depth extending in a z-direction. In addition, the corner siding product may include a living hinge extending in the y-direction between the panels along side edges thereof. The corner siding product can have an uninstalled configuration wherein it is substantially planar. Embodiments of the corner siding product also can have an installed configuration wherein the living hinge permits the panels to be non-planar relative to each other, such that they are complementary in shape to a corner of a building.

A wallboard-fastening device secures first and second wallboards to a framing member without fasteners passing through the wallboards. The device includes first, second, and third framing panels joined along lengthwise edges to form a three-sided cup sized to fit around the framing member, first and second flat-spring flanges joined along lengthwise edges to form a front seam, and a channel-dividing panel joined lengthwise to the front seam and to the second framing panel to form first and second channels that receive the first and second wallboards. The flat-spring flanges flex to exert restoring forces on the wallboards that push the wallboards against the second framing panel. The device may be configured for edge joints, outside-corner joints, and inside-corners, and thus may be combined for any type of wallboard installation, including both parallel and perpendicular applications.

A method of injection molding a building product includes providing an injection mold with a plurality of gates located adjacent a perimeter of the injection mold. The method further includes commingling a first material and a second material into a flow, the second material comprising a color that contrasts with a color of the first material and injecting the commingled flow into the plurality of gates to form a building product. Thereafter, the method includes removing the building product from the injection mold. The second material extends through an interior of the building product and appears as contrasting streaks on an exterior of the building product to form a variegated grain appearance. The method also includes notching a portion of the building product, such that the building product has a substantially linear grain in an exposed portion thereof.

A method of injection molding a building product includes providing an injection mold with a plurality of gates located adjacent a perimeter of the injection mold. The method further includes commingling a first material and a second material into a flow, the second material comprising a color that contrasts with a color of the first material and injecting the commingled flow into the plurality of gates to form a building product. Thereafter, the method includes removing the building product from the injection mold. The second material extends through an interior of the building product and appears as contrasting streaks on an exterior of the building product to form a variegated grain appearance. The method also includes notching a portion of the building product, such that the building product has a substantially linear grain in an exposed portion thereof.

An adjustable barrier for use with a building having a door frame with a door frame opening, a track assembly, and a garage door positioned between the track assembly to selectively cover the door frame opening, the adjustable barrier comprising a barrier bracket and an extendable barrier panel. The adjustable barrier is adapted to seal off a garage door gap located between the garage door and the door frame, and is positioned between the door frame and the track to create a barrier preventing a pest from bypassing the garage door and entering the building through the garage door gap. The extendable barrier panel selectively extends and retracts to adjust to the distance between the track and the door frame, and may further be tapered to allow the adjustable barrier to maintain contact with the track when the track curves away from the door frame.

A corner siding product may include a plurality of panels. Each panel may include a front face with a simulated pattern and an inner wall formed along a perimeter of the panel. The corner siding product may further include a clip that is configured engage each panel to hold the panels together and form a corner.

There is disclosed a system and method for wall panel trim installation. In an embodiment, the system comprises a plurality of horizontal and vertical trim profiles having a back plate adapted to receive a top cap within a bracket, the bracket including a mounting base and walls extending up from either side of the base; and at least one flange formed on the walls and extending outwardly, the at least one flange including a shallow channel; wherein, upon receiving the top cap within the bracket, the at least one flange forming the shallow channel and a portion of the top cap secure an edge of a wall panel therebetween. In an embodiment, the shallow channel formed within the at least one flange is adapted to receive an adhesive or sealant. The top cap is partially received within the bracket such that a clearance is formed between a bottom of the mounting base and a bottom of the top cap. Back plate and top cap pairs allow installation of wall panels placed into position without fasteners.

A corner siding product may include a plurality of panels. Each panel may include a front face with a simulated pattern and an inner wall formed along a perimeter of the panel. The corner siding product may further include a clip that is configured engage each panel to hold the panels together and form a corner.

A corner siding product may include a plurality of panels. Each panel may include a front face with a simulated pattern and an inner wall formed along a perimeter of the panel. The corner siding product may further include a clip that is configured engage each panel to hold the panels together and form a corner.