Flexible flashings for windows, doors, and the like

A window or door assembly in an opening of a wall, the assembly comprising:

• a wall defining an outer surface and a wall opening therethrough, the wall opening being at least partially defined by a curved header at the top of the opening;
• at least one flashing disposed adjacent the curved header at the top of the opening, the flashing comprising:
• a base member defining opposite first and second surfaces extending from a first edge to a second edge, the first surface of the base member defining a plurality of channels configured to direct water in a direction from the first edge to the second edge and thereby outward from the wall;
• and
• a face plate extending from the first edge of the base member in a plane generally perpendicular to the base member and extending from the first surface of the base member, the face plate defining a first edge proximate the base member and extending therefrom to a second distal edge, such that the face plate is disposed against the outer surface of the wall,
• wherein the face plate includes a plurality of slots or corrugations extending in a direction from the second distal edge toward the first edge of the face plate such that the base member can be flexed to the curved configuration of the header at the top of the opening, and wherein each of the channels defines a tapered width, the width of the channels being defined in a direction parallel to the base member and substantially parallel to the face plate, and wherein each channel is defined by opposing side walls that diverge from each other in the direction toward the second edge of the base member such that each channel defines an increased width at the second edge;
• and
• a window or door disposed in the wall opening, the window or door defining a curved top corresponding to the curved header at the top of the opening, with the face plate of the flashing joined to the outer surface of the wall adjacent the wall opening and with the base member being disposed against the curved top of the window or door such that the channels are structured to direct water away from the face plate and the outer surface of the wall,
• wherein each of the channels includes opposite side walls, with the side walls each being undercut so that the lower side wall is able to capture water in the associated channel when the flashing is disposed substantially in a vertical direction.

A flexible flashing for use in a portal installation in a curved opening of a wall, the flashing comprising:

• a base member defining opposite first and second surfaces extending from a first edge to a second edge, the first surface of the base member defining a plurality of channels configured to direct water in a direction from the first edge of the base member to the second edge of the base member;
• and
• a face plate extending from the base member in a plane generally perpendicular to the base member, the face plate defining a first edge proximate the base member and extending therefrom to a second distal edge, such that the face plate is structured to be disposed against an outer surface of the wall with the base member disposed against the curved opening of the wall and the channels configured to direct water on the base member outwardly from the wall,
• wherein the face plate includes a plurality of slots or corrugations extending in a direction from the second distal edge of the face plate toward the first edge of the face plate such that the base member can be flexed to the curved configuration of the opening, and wherein each channel is defined by opposing side walls that diverge from each other in the direction toward the second edge of the base member such that each channel defines an increased width at the second edge,
• wherein the opposite side walls of each of the channels are each undercut so that the lower side wall is able to capture water in the associated channel when the flashing is disposed substantially in a vertical direction.