Roof edge vortex suppressor
AssigneeRenscience IP Holdings Inc.
InventorJason Lin
Life of this patent
Estimating the term…
Abstract
An apparatus attached to the roof perimeter to mitigate wind-generated vortices and uplift loads on the roof perimeter area of a building, applicable for both new constructions and retrofits of existing buildings. The apparatus comprises at least one face portion having face perforation and/or edge serration for increasing small-scale turbulence entrainment, equalizing pressure and disorganizing edge shear layer vorticity, and thus disrupting vortex formation. A roof edge vortex suppressor is preferably mounted along the entire circumference of a roof perimeter.
Claims12
An elongated device disposed along, and attached to, a roof perimeter, comprising at least
- a face portion extending generally upwardly above a roof edge attached thereto, bending at an angle from vertical or unbending,
- and means for mounting and securing said face portion to a roof perimeter,
- wherein said face portion being substantially perforated, and having sawtooth-like geometric elements forming a serrated upper edge with substantial indentation,
- whereby to suppress roof edge vortex and wind uplift force.
An elongated device disposed along, and attached to, a roof perimeter, comprising at least
- a face portion extending generally upwardly above a roof edge attached thereto, bending at an angle from vertical or unbending,
- and means for mounting and securing said face portion to a roof perimeter,
- wherein said face portion having sawtooth-like geometric elements forming a serrated upper edge with substantial indentation,
- whereby to suppress roof edge vortex and wind uplift force.
An elongated device disposed along, and attached to, a roof perimeter, comprising at least
- a generally vertical face portion extending upwardly above a roof edge attached thereto,
- an upper face portion adjoining upper edge of said vertical face portion and forming an angle therewith,
- and means for mounting and securing said elongated device to a roof perimeter,
- wherein said vertical face portion or said upper face portion, or both, being substantially perforated,
- whereby to suppress roof edge vortex and wind uplift force.
An elongated device disposed along, and attached to, a roof perimeter, comprising at least
- a raised face portion extending generally upwardly at least 6″ above a roof edge attached thereto, curving or bending outwards at an angle from vertical, and being substantially perforated with an overall porosity of at least 40%,
- and means of mounting and securing said face portion to a roof perimeter,
- whereby to suppress roof edge vortex and wind uplift force.
Dependencies are inferred from the claim text.