A wall structure having a horizontal base stud, which wall structure has an upper wall panel, and a horizontal base stud, wherein the base stud has openings to allow for liquids to escape in the event of a plumbing leak, and additional openings to allow for air flow from the exterior to the interior of the wall structure.

A wall structure having a horizontal base stud, which wall structure has an upper wall panel, and a horizontal base stud, wherein the base stud has openings to allow for liquids to escape in the event of a plumbing leak, and additional openings to allow for air flow from the exterior to the interior of the wall structure.

An optical element having stray light suppression structure includes a main body which is ring-shaped and defines an axial direction. The main body has an inner peripheral face and an outer peripheral face. The main body is for being arranged inside a lens mount. The main body has a first end and a second end along the axial direction and has plural stray light suppression structures on the inner peripheral face. The stray light suppression structures are spacedly arranged around the axial direction. A surface of each stray light suppression structure is non-coplanar with the inner peripheral face. Each stray light suppression structure has a third end closer to the first end and a fourth end closer to the second end. Each stray light suppression structure has an extension path at least partially nonoverlapping a line defined from the third end to the fourth end.

A baseboard for covering an expansion gap at an intersection of a vertical wall and a floor. The baseboard includes a substantially L-shaped body formed of a thermoplastic material and having a toe portion and a wall portion. The toe portion has a front side and a back side, and the wall portion has a front side, a back side, an upper end, and a lower end. The back side of the wall portion is provided with a plurality of spaced-apart ventilation channels extending entirely across the wall portion from the upper end of the wall portion to the lower end thereof to permit air-flow to and from the floor gap. At least the front side of the toe portion and the front side of the wall portion is coated with a flexible coating.

A rodent repelling siding for repelling rodents from entering a structure includes a siding housing having a wall side, a top side, a front side, and a bottom side forming an inner compartment. The front side has a plurality of vent slots extending through to the inner compartment. The wall side s configured to be coupled to an outside wall of a structure with the bottom side disposed on the ground. An absorbent insert is coupled within the inner compartment. The absorbent insert is configured to absorb a chemical repellant and release a repellant odor therefrom. The repellant odor passes through the plurality of vent slots.

A baseboard for covering an expansion gap at an intersection of a vertical wall and a floor. The baseboard includes a substantially L-shaped body formed of a thermoplastic material and having a toe portion and a wall portion. The toe portion has a front side and a back side, and the wall portion has a front side, a back side, an upper end, and a lower end. The back side of the wall portion is provided with a plurality of spaced-apart ventilation channels extending entirely across the wall portion from the upper end of the wall portion to the lower end thereof to permit air-flow to and from the floor gap. At least the front side of the toe portion and the front side of the wall portion is coated with a flexible coating.

A ventilation screed comprising an upper attachment flange having a top portion and a bottom portion and at least one opening in the top portion; a drip edge protruding from the bottom portion of the upper attachment flange; a drainage cavity protrusion protruding from the bottom portion of the upper attachment flange above the drip edge, wherein the drainage cavity protrusion has a vertical portion of a L-shaped drainage trough portion and a bottom portion having at least one drainage opening along a meeting point of the upper attachment flange and the drainage cavity protrusion, an upper ground portion in communication with the L-shaped drainage trough portion and a drainage cavity shroud in communication with the upper ground portion, wherein the drainage cavity shroud extends past the drip edge.