A cover for water flow inlet for rainwater drainage of roof and buildings is disclosed. The inlet cover comprises an outer formation forming a plurality of ridged fins to avoid the vortex formation of rainwater entrainment and to protect the cover from debris materials and a central plate member. The central plate member has a profiled lower surface. The plate member is of an inverted shape with a plurality of ridged formation or channels on the lower surface to further eliminate formation of air inducing and vortices, therefore promoting high volume laminar flow of water in the inlet pipe of the drainage system.

A system for flashing a mount of a photovoltaic assembly on a surface includes a flashing assembly. The flashing assembly includes flashing that extends across an interface of the mount and the surface when the mount is attached to the surface. The flashing assembly also includes tape attached to the flashing. The tape includes a first attachment area and a second attachment area. The flashing assembly has a first configuration in which the first attachment area is attached to the flashing and the second attachment area is unattached, and a second configuration in which the first attachment area is attached to the flashing and the second attachment area is attached to the surface. The tape is movable with the flashing as an assembly when the flashing assembly is in the first configuration.

A gutter debris preclusion screen and device for use with a gutter attached to a building, with various elevated ridges and patterned sections, wherein a least one ridge redirects water to flow with a longitudinal component over the screen, and a ridge elevates one or more portions of resting debris off the screen surface to permit airflow between the elevated portion(s) of the resting debris and a non-contact area of the screen, facilitating accelerated drying and wind-based removal of the debris from the screen.

A self-sealing mounting bracket includes an outer shell that defines at least one downwardly facing chamber. A plunger is located in the downwardly facing chamber and is slidable within the chamber. The chamber is filled with sealant either at the manufacturing facility or in the field. Larger openings are formed in the top of the outer shell that align with and provide access to bolt holes in the top of the plunger. Smaller openings in the top of the outer shell are for attaching the shell to a roof with lag bolts. The mounting bracket is located on a shingled roof and lag bolts are inserted through the larger openings and threaded into the roof deck. The heads of these lag bolts pass through the larger openings and engage the plungers to press the plungers down in their chambers. This, in turn, compresses, squeezes, and extrudes sealant between the mounting bracket and the roof below forming a water tight seal. The outer shell is then firmly attached to the roof with additional lag bolts inserted through the smaller openings and their aligned bolt holes and threaded into the roof deck. Mounting hardware for items such as solar panels can then be secured to the bracket.

A retention system may comprise a bracket, a bar system, a seal and a bonded washer. The bracket may have a first portion and a second portion. The first portion and the second portion may be operatively coupled together at an angle . The bracket may also have a texture. The bracket may define a mounting surface. The bar system may comprise a bar installable in the bracket. The seal may be installable in the bracket and disposed beneath the mounting surface. The bonded washer may be installable on and compressible against the mounting surface.

A rain water collection system for a blue roof system that includes a tray assembly comprising a container, a water absorbing layer located in said interior region of the container, ballast members and a cover plate. The water absorbing layer is supported on a first set of support surfaces to locate the water absorbing layer above the bottom wall of the container to provide a water collecting space into which will flow excess water that exceeds the water absorbing capacity of the water absorbing layer. The sidewalls of the container have openings therethrough to facilitate the passage of over flow water from the container and the introduction of air therethrough into the interior region. The upstanding columns have openings to facilitate the passage of air therethrough into the interior region of the container.

A system for removing a volume of liquid including a pressure-sealed-pump-vessel, at least one liquid-aperture, a liquid-level-control-valve, a liquid-discharge, a sump-pump, a pressure-sealed-suction-vessel, and one or more vessel-connections. The one or more vessel-connections configured to fluidly couple the pressure-sealed-pump-vessel and the pressure-sealed-suction-vessel, in the preferred embodiment. The sump-pump is located within the pressure-sealed-pump-vessel and includes a pump-inlet and a pump-outlet. The pump-inlet fluidly coupled to the liquid-aperture, and the pump-outlet is fluidly coupled to the liquid-discharge. The sump-pump configured to pump the volume of liquid from the pressure-sealed-pump-vessel and from the system via the liquid-discharge to remove the volume of water from a roof surface or other similar horizontal or substantially horizontal surface.

A debris clearing system for clearing debris from a drain strainer includes a base member having at least one attachment coupler configured to removably attach the base member to the drain strainer, a support frame rotatably coupled to the base member, at least one arm assembly coupled to the support frame, a clearing member coupled to a distal end of the at least one arm assembly. The clearing member being adjacent the exterior surface of the drain strainer when the base member is coupled to the drain strainer. The system includes a drive unit coupled to the support frame to rotate the support frame and the at least one arm assembly relative to the base member. The clearing member clears debris from the exterior surface of the drain strainer when the drive unit rotates the support frame and the at least one arm assembly.

The invention relates to a method of making an insulation product and a novel insulation product, wherein the insulation product is made by adhering a facing to at least one major surface of a batt of man-made vitreous fibres in a matrix comprising a binder by the use of an adhesive and curing the adhesive. The adhesive is an aqueous composition which is free of phenol and formaldehyde and comprises: a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol/g, such as 0.03 to 1.4 mmol/g, such as 0.075 to 2.0 mmol/g, such as 0.075 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins, a component (ii) in form of one or more cross-linkers.

A gutter debris preclusion device for use with a gutter having a support structure being substantially rigid; a screen having a plurality of apertures and being disposed on the support structure; and, a fastener member disposed on the support structure and having a barrier member and a protective film removably attached to the barrier member.