A ventilation screed comprising: a perforated attachment flange portion that is substantially vertical and has a top end and a bottom end and at least one perforation between the top end and the bottom end; a three sided cavity portion having a first side that is substantially horizontal having a left portion and a right portion, a second side that is substantially vertical having a top portion and a bottom portion and the top portion is in communication with the left portion of the first side at a substantially 90 degree angle to the first side and a third side that is between the bottom portion of the second side and the top end of the perforated attachment flange portion at an angle that slopes downwardly, wherein the third side has at least one ventilation opening; and a ventilation spacer along an underside of the three sided cavity portion.

A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.

A vented and water control paneling has improved drainage and integrated ventilation air space. The water control paneling may be fabricated with an omnidirectional relief pattern formed on its back surface. The relief pattern spaces the vented and water control paneling away from a structure to which it is secured, thereby providing an omnidirectional drainage plane between the back surface of the paneling and the structure. The omnidirectional drainage plane provides an unimpeded ventilation and drainage path of water and/or water vapor.

Disclosed are methods and apparatus for providing pre-assembled modular structural louvered systems that include structural supports and louvers, and may also include dampers, actuators and wiring in pre-assembled modules that may be transported to a building site, tilted up into place, and installed. Embodiments of the present invention also provide methods and apparatus for providing pre-assembled modular structural louvered systems which include integrated vertical and horizontal structural supports, allowing for the elimination of some vertical and horizontal wall structures in a building by relying on the structural support provided in the modular louvered systems, thereby making more space available in the building for louvers and airflow.

An apparatus and methods are provided for a foundation vent cover to be installed onto foundation ventilation openings of crawlspaces, garages, and buildings. The foundation vent cover comprises a mesh screen for covering a foundation vent opening and a supportive frame for retaining the mesh screen in an extended configuration over the foundation vent opening. The supportive frame may be made of a metal or any of various plastics. The mesh screen is made of a material that provides an aesthetically appealing appearance to the foundation opening while also allowing an optimal airflow through the foundation opening. The supportive frame includes holes to receive fasteners for attaching the foundation vent cover over the foundation opening. The fasteners may be wood screws, sheet metal screws, self-drilling screws, or threaded bolts and nuts. The holes may be counterbored or countersunk to hide at least a portion of the heads of the fasteners.

A flexible cover plate with an airflow opening. A fan carried on a rear side of the cover plate over the airflow opening. A protective screen carried on a front side of the cover plate over the airflow opening. An angle bracket carried in an elongated slot disposed in said cover plate having a first portion extending parallel along the rear side of the cover plate, and a second portion extending transverse to the front side of the cover plate above the airflow opening. A flexible polymer foam sheet carried on the rear side of the cover plate for conforming to a vent opening in a building foundation wall so that an airtight seal is formed against the vent opening. A fan speed controller adjusting a desired speed of the fan and airflow through the airflow opening.

A vented and water control paneling has improved drainage and integrated ventilation air space. The water control paneling may be fabricated with an omnidirectional relief pattern formed on its back surface. The relief pattern spaces the vented and water control paneling away from a structure to which it is secured, thereby providing an omnidirectional drainage plane between the back surface of the paneling and the structure. The omnidirectional drainage plane provides an unimpeded ventilation and drainage path of water and/or water vapor.

A flexible cover plate with an airflow opening. A fan carried on a rear side of the cover plate over the airflow opening. A protective screen carried on a front side of the cover plate over the airflow opening. An angle bracket carried in an elongated slot disposed in said cover plate having a first portion extending parallel along the rear side of the cover plate, and a second portion extending transverse to the front side of the cover plate above the airflow opening. A flexible polymer foam sheet carried on the rear side of the cover plate for conforming to a vent opening in a building foundation wall so that an airtight seal is formed against the vent opening. A fan speed controller adjusting a desired speed of the fan and airflow through the airflow opening.

A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.

A ventilation screed comprising: an attachment flange having a top portion and a bottom portion; a drip edge protruding from the attachment flange and a return leg that protrudes back from the drip edge, wherein the drip edge is angled downward in a first direction and the return leg is angled downward in a second direction; a drainage cavity protrusion protruding from the attachment flange above the drip edge, wherein the drainage cavity protrusion has an L-shaped drainage trough portion having at least one drainage opening in a bottom portion and a substantially vertical portion with a top end and a bottom end in communication with the bottom portion, an upper ground portion in communication with the top end of the substantially vertical portion of the L-shaped drainage trough portion extending outward from the substantially vertical portion and a drainage cavity shroud extending substantially downward from the upper ground portion.