Roof Drainage TRIZ Cases

An integrated downspout holds rainwater in a nested chamber and diverts overflow via a bypass channel, preventing foundation erosion without external barrels.

A siphonic roof drain bottom uses separate parts connected by threaded rods and nuts to simplify assembly.

A gutter protection device uses segmented insert panels to allow quick maintenance access while preventing debris entry.

A sheet metal pipe section uses a folded overlap joint to protect the weld seam from corrosion.

Segmenting water flow through a perforated screen reduces pipe noise while maintaining flow rate.

Integrated louvered guard resists snow and ice loads by nesting within gutter corners, preventing collapse.

Vertical attachment flange raises roof trim above thick insulation, resolving insufficient nailer height on pre-cast concrete walls.

Extraction of internal drainpipes to the exterior wall surface resolves maintenance access conflicts, while rectangular outlets reduce infiltration risks.

A heavy rolling ball navigates multiple bends in downspouts by dragging a cord, solving insertion difficulties caused by rigid pushing forces.

Axial screw compression deforms an attachment sleeve radially to seal varying pipe diameters and prevent rainwater blockages.

Ferrule-based retaining system eliminates gutter holes, preventing sagging and water damage while supporting leaf protection devices.

A fire protection insert uses a thermally unstable holding element to release a closure part that closes the drain passage via gravity.

A rain collector uses a mathematically defined contour line to direct water flow vertically through the intermediate section.

Axial and radial grooves in flat roof insulation increase bonding surface area to prevent drain body twisting during installation.

A pivotable downspout extension pivots on water weight to release runoff, eliminating manual reattachment hazards and installation costs.

Perforated downspout guard walls collect debris to form a porous filter cake that blocks particles while allowing water flow.

An angled skirt attached to an interposed veil channels water runoff while absorbing differential expansion to prevent resin cracking.

Aperture-equipped cover assembly directs water into troughs while blocking debris entry through integrated upper and lower fastening mechanisms.

Continuous one-piece flashing eliminates caulking degradation at wall-roof joints by merging components into a single heat-welded unit.

A resilient gutter cover uses a pre-formed curved profile to friction-fit into rain gutters without fasteners.

A mounting bracket supports the cover and trough portions of a covered rain gutter system to maintain structural rigidity.

Elastic bands replace screws to eliminate rust-prone holes, providing a tool-free seal that resists loosening.

Water weight triggers the pivotable downspout extension to release flow, eliminating manual adjustment and ground obstruction hazards.

Replacing aluminum with TPO-coated steel reduces manufacturing costs while maintaining reliability through segmented assembly.

Elastic linkage members secure downspout extensions to elbow joints, preventing dislodgment during weather events while allowing easy removal for maintenance.

Segmented drip lip protrusions redirect water flow outward, preventing drainage obstruction and wall contact in terrace installations.

Segmented retentive and drainage layers resolve the trade-off between flat walking surfaces and storm water detention capacity.

A terrace finishing profile uses a box-shaped channel to ventilate masonry and drain moisture through oblong openings in the fastening leg.

Segmented sidewalls and a dimensionally changed base manage heavy rainfall to prevent gutter overflow and erosion.

A skylight curb assembly diverts water away from the roof panel using rib mating webs to cover pre-existing fastener holes.

A tipping pipe assembly directs precipitation onto the ground using a biasing member to return to an upright position.

Segmented outlet bodies accept universal covering members to resolve inventory complexity and project delays caused by incompatible roof membrane materials.

A covered gutter assembly uses a detachable cover to prevent debris entry while simplifying installation.

Homogeneous strip ends and an elastic spring plate eliminate complex end designs, reducing manufacturing effort while securing terrace coverage.

Radial blades on the anti-vortex cover prevent air entrainment, ensuring full conduit filling and high drainage efficiency.

An eaves trough integrates apertures in its upper sheet to channel water into a lower trough section.

Tapered aluminum channels in a gutter barrier system improve heat conduction and drainage, preventing ice buildup while blocking debris.

Replacing metal screws with adhesive barriers eliminates galvanic corrosion and simplifies installation labor.

Folded thin sheet metal cassette elements reduce weight and assembly complexity while maintaining structural stability through optimized coupling leg angles.

An accumulation container triggers emergency pressure flow in the downpipe, preventing roof flooding without large external pipes.

Segmented shield chambers protect vulnerable PVC adapters and aluminum downspouts from string trimmer impacts while maintaining uniform curb appeal.

A rooftop rainwater drainage assembly conceals downspouts within building walls to maintain architectural aesthetics.

Injection molding fuses a plastic connection frame to a drain body, preventing separation and leakage under mechanical stress.

Segmented drip edges with intermediary lips create clearance spaces for brackets, preventing shingle damage while ensuring reliable water protection.

Pivotable holding arms with a toothed sleeve adjust clamping force to prevent damage while ensuring secure attachment across varying drain diameters.

Integrated flashing uses perforated V-shaped trough to drain water while retaining surface materials and preventing debris accumulation.

A monolithic sump drain ramp redirects drainage water toward the inlet using an incline plane.