Roof Ridge Vortex Suppressor Including Opposite-Facing Segments
A roof ridge vortex suppressor may include a base portion configured to be attached to a pitched roof having sloped, generally planar first and second surfaces intersecting with one another at a roof ridge. An upright member may extend from the base portion and may be configured to extend generally vertically upward and away from the roof ridge. The upright member may include a plurality of perforations. First and second segments may extend away from the upright portion. The first segment may be configured to extend generally horizontally in a first direction, and the second segment may be configured to extend generally horizontally in a second direction facing opposite the first direction.
This application claims the benefit of U.S. Provisional Patent Application No. 61/360,668, filed Jul. 1, 2010, entitled “Roof Ridge Vortex Suppressor Including Opposite-Facing Segments,” which is hereby incorporated by reference in its entirety.
TECHNICAL FIELDThe present disclosure relates generally to a roof ridge vortex suppressor and a vortex suppressing system for mitigating wind-generated vortices and wind loads associated with pitched roofs.
BACKGROUNDConventional building construction practices often include installing pitched roofs. Pitched roofs include sloped or angled surfaces that meet at a ridge. As used herein, the term “ridge” includes a generally horizontal ridge or a sloped ridge (sometimes called a hip).
In many instances, a pitched roof is susceptible to wind-induced damage at both its ridge and perimeter. Pitched roofs tend to generate strong wind vortices along the ridge and subject this area to severe upward suction loads resulting from wind-flows across the ridge. Additionally, the perimeter area of the roof may be damaged by wind-generated vortices and upward pressure loads resulting from wind-flows coming in contact with the roof perimeter and/or building surfaces positioned below the roof perimeter.
One way to mitigate wind-induced damage to a pitched roof is to structurally strengthen the roof by, for example, using more or better fasteners to connect portions of the roof to each other and to the walls or frames of a building. Although such structural strengthening may be well-suited for new construction, it may be costly and ill-suited for retrofits of existing buildings. Moreover, structural strengthening cannot always counteract the large forces resulting from high winds of, for example, hurricanes and blizzards. Thus, even structurally strengthened pitched roofs are sometimes severely damaged and/or blown off of buildings by wind-generated vortices and upward pressure loads resulting from wind.
The disclosed subject matter is directed to overcoming one or more of the problems set forth above and/or other problems in the art.
SUMMARY OF THE INVENTIONIn the following description, certain aspects and embodiments of the present invention will become evident. It should be understood that the invention, in its broadest sense, could be practiced without having one or more features of these aspects and embodiments. In other words, these aspects and embodiments are merely exemplary.
The present disclosure is related to a roof ridge vortex suppressor that may include a base portion configured to be attached to a pitched roof having sloped, generally planar first and second surfaces intersecting with one another at a roof ridge. The suppressor may include an upright portion extending from the base portion and being configured to extend generally vertically upward and away from the roof ridge. The upright portion may include a plurality of perforations. Additionally, a first segment may extend away from an upper part of the upright portion and may be configured to extend generally horizontally in a first direction, and a second segment may extend away from the upper part of the upright portion and may be configured to extend generally horizontally in a second direction facing opposite the first direction.
In another aspect of the disclosure, either or both of the first segment and the second segment may include perforations.
In yet another aspect of the disclosure, the perforations may define an open area in the upright portion, which is not less than about 35% of a total area of the upright portion.
In a further aspect of the disclosure, a free end of at least one of the first segment and the second segment may include at least one of serrations and undulations.
In an additional aspect of the disclosure, the base portion may include first and second base members, the first base member being configured to be attached to the first surface and the second base member being configured to be attached to the second surface. In this aspect, the upright portion may include first and second upright members, the first upright member may extend from first base member to the first segment, and the second upright member may extend from the second base member to the second segment.
In another aspect of the disclosure, the first base member, the first upright member, and the first segment may be integrally defined by a first single piece of material, and the second base member, the second upright member, and the second segment may be integrally defined by a second single piece of material.
In an even further aspect of the disclosure, an angle defined by the first upright member and the first base member may be substantially identical to an angle defined by the second upright member and the second base member.
In another aspect of the disclosure, each of the first upright member and the second upright member may have perforations, at least some of the perforations of the first upright member may be substantially aligned with at least some of the perforations of the second upright member.
In yet another aspect of the disclosure, a respective angle of about 90° may be defined by the upright portion and each of the first and second segments.
In an additional aspect of the disclosure, the roof ridge vortex suppressor may be elongated such that a length of the roof ridge vortex suppressor extends in a length direction of the roof ridge.
In a further aspect of the disclosure, a generally horizontal distance from the upright portion to a free edge of the first segment may be about 0.2 to 1.0 times a generally vertical distance from the base portion to the first segment.
In another aspect of the disclosure, a generally horizontal distance from the upright portion to a free edge of the second segment may be about 0.2 to 1.0 times a generally vertical distance from the base portion to the second segment.
In one more aspect of the disclosure, a vortex suppressing system may include the roof ridge vortex suppressor and a fascia member attached to a perimeter of the roof, the fascia member extending generally outwardly away from the perimeter of the roof and being generally curved to define a generally arch-shaped cross-sectional shape of an outer face of the fascia member.
In still another aspect of the disclosure, a vortex suppressing system may include the roof ridge vortex suppressor and a screen portion attached to a perimeter of the roof, the screen portion extending generally laterally outwardly away from the perimeter of the roof to a free end of the screen portion, at least part of a top surface of the screen portion being substantially coplanar with the first surface of the pitched roof.
Aside from the arrangement set forth above, the invention could include a number of other arrangements such as those explained hereinafter. It is to be understood that both the foregoing general description and the following detailed description are exemplary.
The accompanying drawings are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments and, together with the description, serve to explain some principles of the invention. In the drawings,
Reference is now made in detail to exemplary embodiments of the disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
According to features and principles of the present disclosure, a vortex suppressing system may comprise a roof ridge vortex suppressor for attachment to a pitched roof at or near its ridge. It is contemplated that the vortex suppressing system may be arranged to mitigate wind-generated vortices and wind loads at or near the roof ridge. In some exemplary embodiments, the system may include the roof ridge vortex suppressor in combination with one or more perimeter vortex suppressors attached to the roof at or near its perimeter and arranged to mitigate wind-generated vortices and wind loads at or near the perimeter.
As illustrated in
The sloped surfaces 120a, 120b intersect with one another at a roof ridge 130 of pitched roof 105. This intersecting of the surfaces may be direct or indirect. For example, sloped surfaces 120a and 120b may indirectly intersect with one another via a roof ridge cap 135 of roof ridge 130. Roof ridge cap 135 may overlap sloped surfaces 120a, 120b and may create a water tight seal along roof ridge 130. In embodiments where sloped surfaces 120a, 120b are indirectly joined by roof ridge cap 135, a gap 137 may be formed between sloped surfaces 120a, 120b at roof ridge 130. Roof ridge cap 135 optionally may include a vent (not shown) to provide venting for a building space, such as an attic, below the roof 105. In some instances, the roof ridge cap 135 may extend above the respective planes defined by the generally sloped surfaces 120a and 120b.
Whether or not roof ridge 130 includes roof ridge cap 135, each of sloped surfaces 120a, 120b may extend generally outwardly and slope generally downwardly from roof ridge 130. The sloped surfaces 120a, 120b may extend outwardly beyond a respective wall 110 of building 100 and possibly also extend outwardly beyond a structural perimeter 150 of pitched roof 105. Structural perimeter 150 comprises the outermost surfaces of the portions of pitched roof 105 that are positioned below sloped surfaces 120a, 120b. For example, these portions may include bargeboards 155, trim members 157, rafters 160, sheathing 163, or other portions of pitched roof 105 that are positioned below sloped surfaces 120a, 120b. It is contemplated that bargeboards 155, trim members 157, rafters 160, sheathing 163, or other portions of pitched roof 105 may be conventional building construction materials.
As mentioned above, sloped surfaces 120a, 120b may extend outwardly beyond respective walls 110. It should be understood, however, that sloped surfaces 120a, 120b need not extend outwardly beyond respective walls 110. For example, in some embodiments (not shown), sloped surface 120a or sloped surface 120b may extend outwardly from roof ridge 130 toward another roof ridge (not shown) or another wall (not shown).
Vortex suppressing system 165 may be associated with pitched roof 105 of building 100. Vortex suppressing system 165 may comprise roof ridge vortex suppressor 170 alone or in combination with one or more perimeter vortex suppressors 175. Roof ridge vortex suppressor 170 may be positioned at or near roof ridge 130 and may be configured to reduce wind-generated vortices and loads in this area, consequently minimizing the risk of the roof 150 being damaged by high winds. Perimeter vortex suppressor 175 may be positioned along perimeter 150, and may be configured to reduce wind-generated vortices and loads in this area, thereby also minimizing the risk of roof damage caused by high winds. Although
Roof ridge vortex suppressor 170 may extend in generally the same direction as a length of roof ridge 130. As shown in
Referring to
Regardless of the type of fasteners 185 used, base portions 180a, 180b may be attached to sloped surfaces 120a, 120b in a manner that positions the base portions 180a, 180b above the respective sloped surfaces 120a, 120b without causing any substantial risk of water leakage through the sloped surfaces 120a, 120b.
As shown in
As also illustrated in
It is contemplated that roof ridge vortex suppressor 170 may comprise a single, unitary piece of material integrally defining base portions 180a, 180b, upright portion 190, and top portion 195. For example, roof ridge vortex suppressor 170 may be made of a unitary piece of any durable material that provides mechanical strength and stiffness sufficient to sustain high winds and other weather elements over time. These include, but are not limited to sheet metal, acrylic, fiberglass or carbon-fiber reinforced composite materials, and extrusion molded materials. Alternatively, roof ridge vortex suppressor 170 may comprise separate pieces (e.g., separate base portions 180a, 180b, upright portion 190, and top portion 195) joined together.
In another embodiment, as illustrated in
It is contemplated that roof ridge vortex suppressor 170 may be configured to alter wind flow at or near roof ridge 130. For example, referring now to
As illustrated in
As previously discussed, vortex suppressing system 165 may also include a fascia member 175a. As illustrated in
Although the position of fascia member 175a has been described with reference to sloped surface 120a, it should be understood that fascia member 175a may alternatively or additionally be positioned adjacent to sloped surface 120a (referring to
Regardless of the positioning of fascia member 175a, it is contemplated that outer face 400 may be generally curved, but may include substantially flat portions 415 (referring to
As previously discussed, instead of or in addition to fascia member 175a, vortex suppressing system 165 may include a windscreen 175b. As illustrated in
Mounting portion(s) 430, which may be shaped to conform to perimeter 150, may be attached to perimeter 150 by any type of fastening arrangement, which may include, for example, adhesive, a nail, a screw, tape, a cleat, a wire, a clip, and/or other fastener. As shown in
Regardless of how mounting portion(s) 430 is/are attached to perimeter 150, it is contemplated that windscreen 175b may be positioned such that the screen portion 435 extends generally laterally and outwardly away from perimeter 150 with at least a portion of screen portion 435 being substantially coplanar with sloped surface 120b of pitched roof 105. For example, a part of top surface 450 of screen portion 435 may be substantially coplanar with sloped surface 120b, and may extend from intermediate channel portion 440 to a free end 455 of screen portion 435. It is contemplated that an end part of screen portion 435, which includes free end 455, may bend and/or extend generally downward from the plane defined by sloped surface 120b. Alternatively, the end part of screen portion 435 may be substantially coplanar with sloped surface 120b.
Screen portion 435 is configured to alter wind flow near perimeter 150. For example, screen portion 435 may include perforations 460 (referring to
As illustrated in
As previously discussed, mounting portion(s) 430 and screen portion 435 may be joined by intermediate channel portion 440. As illustrated in
Although the position of windscreen 175b has been described with reference to sloped surface 120b, it should be understood that windscreen 175b may alternatively or additionally be positioned adjacent to sloped surface 120a (referring to
Some embodiments of windscreen 175b may not include intermediate channel portion 440. In these embodiments, mounting portion(s) 430 may be joined directly to screen portion 435, as illustrated in
Regardless of what roof ridge vortex suppressors 170 and perimeter vortex suppressors 175 that vortex suppressing system 165 includes, it is contemplated that vortex suppressing system 165 may be installed during initial construction of building 100 and/or during a retrofit of a previously constructed building 100 at some later date. In either case, for example, roof ridge vortex suppressor 170 may be installed over roof ridge 130 to suppress wind-generated vortices and wind loads near roof ridge 130. In particular, the installation of roof ridge vortex suppressor 170 may include attaching base portions 180a, 180b to sloped surfaces 120a, 120b, respectively, using any of the fastening arrangements discussed above. Alternatively or additionally, and before or after the installation of roof ridge vortex suppressor 170, fascia member 175a and/or windscreen 175b may be installed to suppress wind-generated vortices and wind loads near perimeter 150. For example, the installation of fascia member 175a and/or windscreen 175b may include attaching fascia member 175a and/or windscreen 175b to perimeter 150 using any of the fastening arrangements discussed above.
It is contemplated that the installation of vortex suppressing system 165 may redefine the exterior shape of pitched roof 105. The redefined shape may prevent accelerated wind-flows across roof ridge 130 and/or perimeter 150. Such modification of the wind-flows may prevent and/or reduce the strength of wind vortices and/or wind loads near roof ridge 130 and/or perimeter 150, thereby minimizing cyclic loads on components of roof 105 resulting from recurring winds, and reducing the chances of damage due to material fatigue.
The embodiments and aspects of the disclosure described above are not restrictive of the invention as claimed. Other embodiments consistent with features and principles are included in the scope of the present disclosure. For example, embodiments including features disclosed in the figures of, and in column 3, line 39, to column 4, line 45; column 4, line 62, to column 5, line 17; and column 5, line 40, to column 6, line 12, of U.S. Pat. No. 7,487,618, which are incorporated herein by reference, are included in the scope of the present invention. Additionally, embodiments including features disclosed in the figures of, and in paragraphs [0025]-[0029] and [0031]-[0033] of U.S. Patent Application Publication No. 2006/0016130, which are incorporated herein by reference, are included in the scope of the present invention.
In the foregoing description, various features are grouped together for purposes of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claims require more features than are expressly recited. Rather, as the following claims reflect, inventive aspects may relate to fewer than all features of any particular embodiment disclosed herein.
Claims
1. A roof ridge vortex suppressor, comprising:
- a base portion configured to be attached to a pitched roof having sloped, generally planar first and second surfaces intersecting with one another at a roof ridge;
- an upright portion extending from the base portion and being configured to extend generally vertically upward and away from the roof ridge, the upright portion including a plurality of perforations;
- a first segment extending away from an upper part of the upright portion and being configured to extend generally horizontally in a first direction; and
- a second segment extending away from the upper part of the upright portion and being configured to extend generally horizontally in a second direction facing opposite the first direction.
2. The roof ridge vortex suppressor of claim 1, wherein at least one of the first segment and the second segment includes perforations.
3. The roof ridge vortex suppressor of claim 1, wherein an open area defined by the upright portion is not less than about 35% of a total area of the upright portion.
4. The roof ridge vortex suppressor of claim 1, wherein a free end of at least one of the first segment and the second segment includes at least one of serrations and undulations.
5. The roof ridge vortex suppressor of claim 1, wherein:
- the base portion includes first and second base members, the first base member being configured to be attached to the first surface and the second base member being configured to be attached to the second surface; and
- the upright portion includes first and second upright members, the first upright member extending from first base member to the first segment, and the second upright member extending from the second base member to the second segment.
6. The roof ridge vortex suppressor of claim 5, wherein the first base member, the first upright member, and the first segment are integrally defined by a first single piece of material, and wherein the second base member, the second upright member, and the second segment are integrally defined by a second single piece of material.
7. The roof ridge vortex suppressor of claim 5, wherein an angle defined by the first upright member and the first base member is substantially identical to an angle defined by the second upright member and the second base member.
8. The roof ridge vortex suppressor of claim 5, wherein each of the first upright member and the second upright member has perforations, and wherein perforations of the first upright member are substantially aligned with perforations of the second upright member.
9. The roof ridge vortex suppressor of claim 1, wherein a respective angle of about 90° is defined by the upright portion and each of the first and second segments.
10. The roof ridge vortex suppressor of claim 1, wherein the roof ridge vortex suppressor is elongated such that a length of the roof ridge vortex suppressor extends in a length direction of the roof ridge.
11. The roof ridge vortex suppressor of claim 1, wherein a generally horizontal distance from the upright portion to a free edge of the first segment is about 0.2 to 1.0 times a generally vertical distance from the base portion to the first segment.
12. The roof ridge vortex suppressor of claim 1, wherein a generally horizontal distance from the upright portion to a free edge of the second segment is about 0.2 to 1.0 times a generally vertical distance from the base portion to the second segment.
13. A vortex suppressing system associated with a pitched roof having sloped, generally planar first and second surfaces intersecting with one another at a roof ridge, the vortex suppressing system comprising:
- a fascia member attached to a perimeter of the roof adjacent to an edge of at least the first surface, the fascia member extending generally outwardly away from the perimeter of the roof and being generally curved to define a generally arch-shaped cross-sectional shape of an outer face of the fascia member; and
- the roof ridge vortex suppressor of claim 1.
14. A vortex suppressing system associated with a pitched roof having sloped, generally planar first and second surfaces intersecting with one another at a roof ridge, the vortex suppressing system comprising:
- a screen portion attached to a perimeter of the roof adjacent to an edge of at least the first surface, the screen portion extending generally laterally outwardly away from the perimeter of the roof to a free end of the screen portion, at least part of a top surface of the screen portion being substantially coplanar with the first surface of the pitched roof; and
- the roof ridge vortex suppressor of claim 1.
Type: Application
Filed: Jun 30, 2011
Publication Date: Jan 5, 2012
Inventor: Jason JianXiong Lin (Cary, NC)
Application Number: 13/173,635
International Classification: E04H 9/14 (20060101); E04B 1/92 (20060101);