Roofing panels with water shedding features may be installed on the roof of a house or other structure in lieu of or as an underlayment for traditional roofing materials. The water shedding features can be built into a base of the roofing panels, as part of a frame for the roofing panels, or formed as part of a waterproofing layer applied to the base of the roofing panels, or which can be configured as a roofing panel. The roofing panels also can be installed in overlapping courses along a roof with water shedding features applied thereto or incorporated along one or more peripheral edges. The water shedding features of adjacent roofing panels will collect and divert water away from the upper surfaces and/or away from headlap and/or sidelap joints defined between the roofing panels.

A liquid dispersing system includes a plate having a plurality of spaced holes passing through the plate. The plate has a thickness, a top portion, and a bottom portion, and each hole comprises a first opening at the top portion of the plate and a second opening at the bottom of the plate. The first opening and the second opening of each hole are differently-sized, so that the holes divide and disperse drops of the liquid into smaller droplets.

A liquid dispersing system includes a plate having a plurality of spaced holes passing through the plate. The plate has a thickness, a top portion, and a bottom portion, and each hole comprises a first opening at the top portion of the plate and a second opening at the bottom of the plate. The first opening and the second opening of each hole are differently-sized, so that the holes divide and disperse drops of the liquid into smaller droplets.

Panels with substantially integrated watershedding features may be installed on the roof a house or other structure in lieu of traditional roofing materials. The panels include a body formed from a mixture of filler materials and polymeric binder materials, which can include recycled materials, with watershedding features generally formed with and/or integrated with the panels. The panels also can be installed in overlapping courses along a roof with the watershedding features incorporated along one or more peripheral edges. The watershedding features of adjacent panels further can cooperated to collect and divert water away from the upper surfaces and/or away headlap and/or sidelap joints defined between the panels.

The invention relates to a method for determining a topology of a defined, bounded surface (1) for dewatering said surface by means of at least one specified dewatering point (21), so that the surface (1) comprises a monotonically increasing slope starting from the dewatering point (21) to a collision point (16), said method avoiding the disadvantages of eth prior art and determining in a more efficient, simple, and less error-prone manner a topology of a defined, bounded area (1) for dewatering the same by means of at least one specified dewatering point (21), so that the surface (1) comprises a monotonically increasing slope, starting from the dewatering point (21) to a collision point (16), and proposes that the topology is determined such that the surface (1) is subdivided into individual surface elements (2) each having at least one plane (3), wherein a slope in a first direction and/or a second direction perpendicular to the first direction is successively determined in every plane (3) for each area element (2), starting from the dewatering point (21).

The present disclosure provides a sump drain apparatus comprising a drain inlet and a ramp coupled to the drain inlet comprising an incline plane configured to divert drainage water toward the drain bowl, wherein at least a portion of the ramp is configured to be positioned on top of a roof deck.

Roofing panels with water shedding features may be installed on the roof of a house or other structure in lieu of or as an underlayment for traditional roofing materials. The water shedding features can be built into a base of the roofing panels, as part of a frame for the roofing panels, or formed as part of a waterproofing layer applied to the base of the roofing panels, or which can be configured as a roofing panel. The roofing panels also can be installed in overlapping courses along a roof with water shedding features applied thereto or incorporated along one or more peripheral edges. The water shedding features of adjacent roofing panels will collect and divert water away from the upper surfaces and/or away from headlap and/or sidelap joints defined between the roofing panels.

A gutter guard for filtering water that enters a rain gutter on a building, the gutter guard having a barrier member configured to be positioned above a lowest portion of the rain gutter and having a plurality of openings that are penetrable by water. The barrier member having first members that extend along a first direction; second members that extend along a second direction that is non-parallel to the first direction; a third member made of an ion-dispersing material; and a protrusion extending from the barrier member.

An apparatus for and method of diverting water is provided. The apparatus includes a contoured bottom configured to engage a roofing surface, a backwall extending from the contoured bottom and first and second sidewalls extending from the contoured bottom. The method involves using the apparatus to engage a roofing surface, receive a flow of water, direct the flow of water, and drain the flow of water through an opening.