Roof batten
A roof batten for use in spacing tiles or similar exterior roofing members from a roof overlayment is provided. In one embodiment, the batten includes at least one layer of a corrugated plastic material with a pair of generally planar plies and a convoluted ply cooperating with the planar plies to define a multiplicity of passages. The passages allow drainage of water infiltrating the tiles and further promote drying. REEXAMINATION RESULTS The questions raised in reexamination request no. 90/007,487, filed Mar. 19, 2004 have been considered and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U. S. C. 307 as provided in 37 CFR 1.570(e), for ex parte reexaminations, or the reexamination certificate required by 35 U. S. C. 316 as provided in 37 CFR 1.997(e) for inter partes reexaminations.
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This application claims priority under 35 U.S.C. §119(e) to, and hereby incorporates by reference, U.S. Provisional Application No. 60/112,597, filed Dec. 17, 1998.
FIELD OF THE INVENTIONThis invention relates to roof coverings and, in particular, this invention relates to building materials or devices which extend the lives of tile roofs by preventing water infiltration.
BACKGROUND OF THE INVENTIONMost tile roofs include an exterior decking or sheathing, which overlays a structural framework of either trusses or rafters. Typically, decking includes plywood sheets or other planking members. One or more layers of overlayment, such as felt (tar) paper, is usually attached to the decking. Battens are normally placed over the felt paper before tiles are installed. The battens are usually fixed to the roof by fasteners, such as nails or staples, driven through the battens and felt paper and into the roof decking. Battens are typically wood strips and serve to separate the tiles from the overlayment. Separation between tiles and overlayment is necessary to ensure that water infiltrating the tiles onto the felt paper evaporates quickly. If water is otherwise allowed to stand or pool, the water may infiltrate through the felt paper and penetrate the roof decking, thereby potentially causing deterioration of the roof decking and the underlying framework. When horizontal batting is installed, water which has infiltrated the roof tiles tends to pool on the upper-slope sides of the battens, thereby potentially causing roof deterioration.
Means previously used to avert or diminish the likelihood of deterioration to tile roofs due to water pooling and infiltration include leaving gaps between adjacent battens and cutting drainage channels on the undersides of the battens. These means have been largely ineffective and have often added to the expense and time necessary for tile roof installation as well.
As depicted in
There is then a need for a device or roofing material which spaces tile from underlaying roofing and structural members, which greatly reduces or eliminates water pooling when water infiltrates the roof tile system, and which may be installed quickly and efficiently.
SUMMARY OF THE INVENTIONThis invention substantially meets the aforementioned needs. There is provided a spacer operatively disposable between a roof decking and an exterior roofing material. The spacer may include at least one layer of a material, the material defining a multiplicity of passages therethrough. The passages defined may extend generally transversely to a longitudinal axis of the spacer and may allow infiltrated liquids to drain therethrough, thereby preventing accumulation of the infiltrated liquids. The spacer may further include a generally planar first ply and a convoluted second ply cooperating to define the multiplicity of passages. A plurality of first plies and a generally convoluted second ply may be present. The second ply may include a multiplicity of cross-plies extending between the first plies. The spacer may include a plurality of layers. Each adjacent layer of the spacer may be hingably connected. The layers, when assembled in a stacked relationship, may be fastened together by stitching, staples, glue, hot air welding, ultrasonic welding, infrared bonding, other methods known to the art, or any combination thereof.
There is also provided a tile roof system, the tile roof system including an overlayment, a tile, and a batten. The batten may be disposable between the tile and the overlayment and may include at least one layer of a material defining a multiplicity of passages therethrough, the passages extending generally transversely to a longitudinal axis of the batten and allowing infiltrated liquids to drain therethrough.
There is further provided a method of installing a tile on a roof with a slope. The method may include the step of providing first and second battens, each batten comprising at least one layer of a material defining a multiplicity of air passages therethrough. The defined passages may extend generally transversely to a longitudinal axes of the batten and may allow infiltrated liquids to drain therethrough. The method may further include the step of fixing the first and second battens on the roof such that longitudinal axis of the first and second battens are generally parallel and extend generally horizontally to the roof's slope. The method may further include the step of fixing the tile atop the first and second battens.
Referring to
One embodiment of two layers of layer 34 is depicted in
Another embodiment of layer 34 is depicted in
Referring to
These embodiments of layers 34 include a corrugated plastic (resin) material with a nominal weight appropriate for the structure, and often between a range of about 140 and 160 pounds per thousand square feet. One nominal weight may be about 150 pounds per thousand square feet. The plastic resin may have a 4.0 to 4.5-millimeter profile. The plastic resin may further include an about 4.0 (±0.2) millimeter profile. The plastic material may still further be black and include ultraviolet (UV) inhibitors to enable the plastic resin to withstand extended exposure to direct UV light. The plastic resin may include a high-density, polyethylene, corrugated, plastic resin with a brittleness temperature of about −103.0 degrees F., a deflection temperature of about a +162.0 degrees F. at 66 pounds per square inch, a burn rate of about 2.5 inches per minute, a self-ignition temperature of about 734.0 degrees F., and may also merit a label of “excellence” for smoke density of a 9.3 percent average.
Referring to
The slit-scoring technique is described in U.S. Pat. No. 4,803,813, issued to Fitterman on Feb. 14, 1989, the entire contents of which are hereby incorporated by reference. In the slit-scoring technique, hingelines 88 alternate with hingelines 90. Hingelines 88 are defined by extending a slit generally along a line 86 and parallel (or generally transversely) to channels 58. The slit extends through planar ply 54 and convoluted ply 56, thereby leaving planar ply 52 intact. Hingelines 90 are defined by extending a slit generally along a line 86 and generally parallel to hingelines 88. The slit extends through planar ply 52 and convoluted ply 56, thereby leaving planar ply 54 intact. Intact planar plies 52 and 54 are thus used as hinges and batten 30 is assembled by Z-folding layers 34 along hingelines 88 and 90 in the manner depicted in FIG. 8.
The nick-scoring technique is an alternative hinge-forming technique described in U.S. Pat. No. 5,094,041, issued to Kasner et al., on Mar. 10, 1992, the entire contents of which are hereby incorporated by reference. In the nick-scoring technique, lines 86 include a series of generally linear perforations. Each perforation substantially extends through planar plies 52 and 54 and convoluted ply 56. Substantially intact portions of planar plies 52 and 54 and convoluted ply 56 remain between perforations. Lines 86 are thusly formed into hinges and thereby define layers 34. Layers 34 may be Z-folded along lines 86 in a manner substantially resembling
Still another hinge-forming technique includes forming completely separated layers 34 and hingably connecting adjacent layers 34 with a pliable adhesive member such as tape.
Channels 58 extend generally perpendicularly, or otherwise transversely, to longitudinal axis 36 of batten 30. As more fully described below, batten 30 is installed in generally horizontal rows on a roof. Channels 58 therefore allow water to drain therethrough, preventing water pooling and enabling air exchange once tiles, or other similar materials, are installed.
As depicted in
Exemplary roof batten 30 may be about ⅜ inches in thickness, 1½ inches in width, and include two hinged segments 48 inches in length. However, many other dimensions are contemplated to be within the scope of this invention. Exemplary roof batten 30 may be utilized with clay or cement tiles, including flat tiles, S-tiles, and barrel tiles. Moreover, while exemplary roof batten 30 is depicted as being used in conjunction with roof tiles, other exterior roof materials including slate, clay, metal, and cedar may also be installed using exemplary roof batten 30.
Batten 30 of this invention thereby promotes ventilation and prevents water accumulation beneath tiles or similar exterior roofing members. The result of installing the batten of this invention is thusly a roof, which remains drier and is more protected from decomposition and damage than if battens of the prior art were used. The roof batten of this invention will not rot, warp, or absorb water as do many of the wooden roof battens of the prior art. Exemplary batten 30 further eliminates excessive nail protrusion through roof coverings, which can also promote water penetration and roof damage. Roof batten 30 of this invention may also enable a substantial decrease in time and expense necessary to install a tile roof as compared to lathe-batten systems of the prior art. Because one embodiment of roof batten 30 includes a pliable, yet resilient resin, tile breakage during installation is reduced when workers step on installed tiles. Other benefits of utilizing batten 30 includes elimination of waste and wood splinters during installation. Exemplary battens 30 also weigh less than wooden battens. In contrast to wood battens, battens 30 are easily cut to desired lengths with utility knives.
Because numerous modifications may be made of this invention without departing from the spirit thereof, the scope of the invention is not to be limited to the embodiments illustrated and described. Rather, the scope of the invention is to be determined by appended claims and their equivalence.
Claims
1. A tile roof system, comprising:
- an overlayment;
- a tile; and
- a batten disposable between the tile and the overlayment, the batten comprising: at least one layer comprising a generally planar first ply and a second ply, the first and second plies cooperating to define a multiplicity of passages extending generally transversely to a longitudinal axis of the batten.
2. The batten of claim 1, A tile roof system, comprising in combination:
- an overlayment;
- a rigid tile; and
- a batten disposed between the tile and the overlayment, the batten comprising: at least one layer comprising generally planar first plies and a second ply, the first and second plies cooperating to define a multiplicity of passages extending generally transversely to a longitudinal axis of the batten, and in which the second ply includes a multiplicity of cross plies extending between the first plies.
3. The batten of claim 1, A tile roof system, comprising in combination:
- an overlayment;
- a rigid tile; and
- a batten disposed between the tile and the overlayment, the batten comprising:
- at least one layer comprising generally planar first plies and a second ply, the first and second plies cooperating to define a multiplicity of passages extending generally transversely to a longitudinal axis of the batten, and in which the second ply is generally convoluted.
4. The batten of claim 3, in which a pair of first plies is present.
5. The batten of claim 4, in which a plurality of layers are present.
6. The batten of claim 5, in which adjacent layers are hingably connected by a hingeline extending generally parallel to a the batten longitudinal axis.
7. The batten of claim 6, in which the hingeline is defined by a slice extending through the second ply and one of the first plies.
8. The batten of claim 6, in which first and second hingelines are present, the first hingeline defined by a first slice extending through one of the first plies and the second ply, and the second hingeline defined by a second slice extending through the other another of the first plies and the second ply.
9. The batten of claim 6, in which a plurality of hingelines are present, the hingeline is hingelines defined by alternate severed and intact portions, the severed portions comprising substantially severed first and second plies, the intact portions comprising substantially intact first and second plies.
10. The batten of claim 5, in which the layers are stacked and fastened together.
11. The batten of claim 10, further comprising means for fastening the layers together.
12. The batten of claim 10, in which the layers are fastened together by stitching.
13. The batten of claim 10, in which the layers are fastened together by fasteners selected from the group consisting of staples, glue, hot air welding, stitching, ultrasonic welding, infrared bonding, and any combination thereof.
14. A method of installing a tile on a roof with a slope, comprising the steps of:
- providing first and second battens, each batten comprising at least one layer of a material comprising first and second plies defining a multiplicity of air passages therethrough, the passages extending generally transversely to a longitudinal axis of the batten;
- fixing the first and second battens on the roof such that longitudinal axes of the first and second battens are generally parallel and extend generally horizontally to the roof slope; and
- fixing the tile atop the first and second battens.
15. The method of claim 14, in which the layer comprises a first and second generally planar ply and a generally convoluted ply disposed between the first and second plies.
16. The method of claim 15, in which the provided battens comprise a plurality of layers.
17. The method of claim 16, in which the layers further comprise means for fixing said layers in a stacked relationship.
18. The method of claim 17, in which the fixing means includes stitching.
19. The method of claim 17, in which the fixing means is selected from the group consisting of staples, glue, hot air welding, stitching, ultrasonic welding, infrared bonding, and any combination thereof.
20. The method of claim 15, in which the provided battens comprise a plurality of hingably-connected layers.
21. A spacer operatively disposable between a roof decking and an exterior roof material and comprising a plurality of stacked layers, each layer comprising a generally planar first ply and a second ply cooperating with the first ply to define a multiplicity of passages, the passages extending generally transversely to a longitudinal axis of the spacer, the layers fastened together by stitching, adjacent layers connected by a hingeline extending generally parallel to the spacer longitudinal axis.
22. A spacer operatively disposable between a roof decking and an exterior roof material and comprising a plurality of stacked, completely separated layers fastened together by stitching, each layer comprising a generally planar first ply and a second ply cooperating with the first ply to define a multiplicity of passages, the passages extending generally transversely to a longitudinal axis of the spacer.
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Type: Grant
Filed: Mar 19, 2004
Date of Patent: Sep 11, 2007
Assignee: Diversi Plast Products, Inc. (Golden Valley, MN)
Inventors: Richard J. Morris (Prior Lake, MN), Lars J. Walberg (Eagle, CO)
Primary Examiner: Naoko Slack
Attorney: Patterson, Thuente, Skaar & Christensen, P.A.
Application Number: 10/805,686
International Classification: E04B 7/00 (20060101); E04D 1/00 (20060101);