Ventilation screed device and assembly

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, wherein each of the drainage openings is a substantially rectangular shape with two corners of the rectangular shape having rounded edges that are away from the 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 extending substantially downward from the upper ground portion, wherein the drainage cavity shroud extends past the drip edge.