Abstract
Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails including a tile body of the layered type and provided with shaped flaps delimited by separation cuts, wherein the upper face of the tile body is provided with a plurality of sealing engagement devices which are made in such a way as to have an immediately identifiable nailing area which is perimetrically delimited by a sealing engagement area that is made of an adhesive and/or thermally adhesive and/or hot melt material. The sealing engagement area enables the bonding engagement of the corresponding flap of the bituminous tile that in a laid condition is thereby overlapped, also enables a perfect sealing of the insertion area of the anchoring nail.
Claims
1. Bituminous tile with sealing engagement devices delimiting positioning areas of anchoring nails, which is made in such a way as to comprise a layered tile body comprising an upper face and a lower face, a series of flaps arranged in an aligned sequence, after one another, in correspondence of a lower longitudinal portion of the tile body, wherein each flap is separate from an adjacent one by means of a separation cut, characterised in that at least the upper face of the tile body is provided with at least one sealing engagement device comprising at least one nailing area that identifies an insertion area of at least one anchoring nail, wherein the nailing area is circumscribed by a sealing engagement area, said sealing engagement area being made, alternatively or in combination, of adhesive, thermally adhesive or hot melt material, and wherein the sealing engagement area of the sealing engagement device is intended to enable the sealing of the nailing area in which in a laid condition at least one anchoring nail is inserted, while bondingly engaging at least one portion of the bituminous tile that in a laid condition at least partially overlaps the sealing engagement device.
2. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein the size of the nailing area is smaller than the size of the sealing engagement area.
3. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein in a laid condition the sealing engagement devices of the bituminous tile overlapping the underlying bituminous tile are positioned in such a way that the anchoring nail that engages by insertion the nailing area also engages by insertion a portion of the tile body of the underlying bituminous tile.
4. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein the sealing engagement devices are at least placed in correspondence of the separation cuts above them.
5. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein the sealing engagement area of the sealing engagement device is at least partly protruding with respect to the plane on which the nailing area lies.
6. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein a left side of the tile body comprises a reference protrusion, said reference protrusion being provided with an upper wall and with a lower wall that are parallel to each other, and a right side of the tile body realizes a series of recesses in such a way as to create a first reference wall and a second reference wall, wherein the first reference wall of the right side of the tile body is on the same axis as the upper wall of the reference protrusion of the left side of the tile body while the second reference wall of the right side of the tile body is on the same axis as the lower wall of the reference protrusion of the left side of the tile body, wherein the assembly consisting of the upper wall and of the lower wall of the reference protrusion of the left side of the tile body and of the first reference wall and of the second reference wall of the right side of the tile body allows to realize a system of reference indices that allow to simplify the relative positioning for laying of each bituminous tile with respect to the adjacent one and to the underlying one in order to carry out a correct alignment and a correct overlapping thereof for laying, wherein the nailing area of each sealing engagement device is positioned on the tile body in such a way as to be placed immediately below the axis joining the first reference wall of the right side and the upper wall of the reference protrusion of the left side of the tile body.
7. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein in order to highlight the nailing area, a colour of the nailing area of the sealing engagement device is different from a colour of the sealing engagement area.
8. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein the nailing area of at least one sealing engagement device is made in such a way that it at least partially comprises the material of which the sealing engagement area is made, and wherein the sealing engagement area is at least partly protruding with respect to the nailing area.
9. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein the nailing area of at least one sealing engagement device is devoid of the material of which the sealing engagement area is made.
10. Bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to claim 1, wherein the sealing engagement area of the sealing engagement devices comprises at least one horizontal band whose dimensions in length are prevailing with respect to the remaining part of the sealing engagement area.
Description
CONTENT OF THE DRAWINGS
[0028] FIG. 1 is a plan view from above of the bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention in the version with quadrangular flaps;
[0029] FIG. 2 is a plan view from above of the bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention in the version with arched “fish scale” flaps;
[0030] FIG. 3 is a plan view from above of the bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention in the version with triangular ending flaps.
[0031] FIG. 4 is a plan view from below of the bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention in the version with quadrangular flaps;
[0032] FIG. 5 is a plan view from below of the bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention in the version with arched “fish scale” flaps;
[0033] FIG. 6 is a plan view from below of the bituminous tile with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention in the version with triangular ending flaps.
[0034] FIG. 7 is a view of two bituminous tiles with sealing engagement devices delimiting positioning areas of the anchoring nails according to the present invention shown in a laid condition.
PRACTICAL REALIZATION OF THE INVENTION
[0035] Referring without limits also to the content of the drawings as from the representations as in FIGS. 1 to 7, a bituminous tile (1) with sealing engagement devices delimiting positioning areas of the anchoring nails is described, which is intended to be used in the making of roof coverings for buildings, said bituminous tile (1), in the described example, which is to be considered as a preferred embodiment, consists of a tile body (2) made in a known way, preferably layered, such as to be made up of materials that are known in the making of the current bituminous tiles. In the described exemplary embodiment of the solution according to the present invention, in a preferable and not limiting way, the tile body (2) consists of a composite obtained from the combination of multiple bonded component layers of which, as it is currently known, at least one intermediate supporting layer that is of the known type and is made of glass fibre or of polyester and glass veil pre-impregnated with bitumen, in any case the supporting layer being able to be made also with other known fibres which are suitable for use in making an intermediate supporting layer intended to be used in the making of bituminous tiles, said fibres constituting the intermediate supporting layer being preferably and in a known way pre-impregnated with bitumen. In addition to said intermediate supporting layer, the tile body (2) is made in such a way as to comprise, coupled with the intermediate layer, at least two bitumen layers of which an upper layer and a lower layer in such a way that said intermediate layer is interposed between said bitumen layers, the latter being usually and preferably made with bitumen of the known type suitable for the intended purpose of constituting a bituminous tile. Furthermore, as it is known, the tile body (2) is of the type preferably comprising at least one upper covering layer consisting of ceramic-coated granules that can be coloured, it being also provided that, opposite said upper covering layer, the tile body (2) is provided with at least one lower layer of the known type, in the described exemplary embodiment and in a non-limiting way said lower layer being of silica sand, although said lower layer can also be of a different known type.
[0036] In this way, as from the representation as in FIG. 1, FIG. 2 and FIG. 3, the tile body (2) realizes a sheet-like plate that comprises an upper face (21) and a lower face (22), wherein the lower face is opposite the upper face (21), wherein the upper face (21) in a laid condition is intended to be facing upwards while the lower face (22) of the bituminous tile (1) in a laid condition, in a known way, is intended to at least partially rest on the laying foundation of the roof to be covered. In the described exemplary embodiment the tile body (2) comprises a series of flaps (3) arranged in an aligned sequence after one another in correspondence of the lower longitudinal portion of the tile body (2) itself, wherein the flaps (3) are made in such a way that each of them is identically shaped with respect to the others. In the tile body (2) one flap (3) and the adjacent one are separate by means of a separation cut (4) that is made in the tile body (2) between one flap (3) and the adjacent one, it being provided that, in the described example, the separation cuts (4) are parallel to each other and of identical shape and size, thus being orthogonal with respect to the upper longitudinal side (23) of the tile body (2). In this way, the separation cuts (4) define the development in height of the flap (3) to which they are related. In more detail as to the described exemplary embodiment, each flap (3) as in the example shown in FIG. 1 is rectangular, while the shape of each flap (3) as in the representation of FIG. 2 is provided with an arched lower portion assuming a shape that is conventionally defined as “fish scale”. Furthermore, in the bituminous tile (1) as in the example shown in FIG. 3, the terminal part of the flap (3) is shaped in such a way as to assume a triangular shape. The flaps (3) with which the tile body (2) is provided can indifferently be of a different shape and size with respect to those depicted in FIG. 1, FIG. 2 and FIG. 3, wherein said flaps (3) can be of a known shape or of a shape specifically made to comply with contingent application requirements.
[0037] As it is shown in FIGS. 1 to 3, the tile body (2), in the described exemplary embodiment, is made in such a way that both the left side (24) and the right side (25) are shaped in a known way. In more detail, although the left side (24) and the right side (25) of the tile body (2) can be shaped in any way that may be deemed useful in relation to the intended purpose of the bituminous tile (1), in the described exemplary embodiment, as it is particularly shown in FIGS. 1 to 3, the left side (24) of the tile body (2) comprises a reference protrusion (241), wherein said reference protrusion (241) is made in such a way as to comprise an upper wall (242) and a lower wall (243) which are parallel to each other. Furthermore, the right side (25) of the tile body (2), in the exemplary embodiment as in FIGS. 1 to 3, is shaped in such a way as to realize a series of recesses so as to create a first reference wall (251) and a second reference wall (252). In detail, the first reference wall (251) of the right side (25) of the tile body (2) is on the same axis as the upper wall (242) of the reference protrusion (241) of the left side (24) of the tile body (2), while the second reference wall (252) of the right side (25) of the tile body (2) is on the same axis as the lower wall (243) of the reference protrusion (241) of the left side (24) of the tile body (2). The assembly consisting of the upper wall (242) and of the lower wall (243) of the reference protrusion (241) of the left side (24) of the tile body (2) and of the first reference wall (251) and of the second reference wall of the right side (25) of the tile body (2) allows to realize a system of reference indices that allow to simplify the relative positioning of each bituminous tile (1) with respect to the adjacent one and, as shown for example in FIG. 7, with respect to the bituminous tile (1) that in a laid condition is underlying in order to carry out a correct alignment and a correct overlapping thereof for laying. As it is known, the area between the upper wall (242), the lower wall (243), the first reference wall (251) and the second reference wall (252) defines an engagement strip, within which the nailing of a bituminous tile (1) is to be carried out.
[0038] As an innovation, the tile body (2) of the bituminous tile (1) according to the present invention, at least in correspondence of the upper face (21) is provided with sealing engagement devices (5) which are made of an adhesive and/or thermally adhesive and/or hot melt material, preferably adhesive bitumen and, as shown for example in FIG. 7, they are made for the purpose of simultaneously obtaining, in a laid condition, both the bonding engagement of the sealing engagement device (5) of the underlying bituminous tile (1) to at least one portion of the overlying bituminous tile (1), and the sealing of the insertion zone of the anchoring nail whose positioning must be within the sealing engagement device (5). In more detail, as shown in the exemplary embodiments as in FIGS. 1 to 3, said sealing engagement devices (5) are made in such a way as to consist of circumscribed areas of adhesive and/or thermally adhesive and/or hot melt material so that each sealing engagement device (5) is made in such a way as to form on the tile body (2) a circumscribed area whose shape can be different or constant for each sealing engagement device (5) with which the tile body (2) is provided. In more detail as to the solution according to the invention, each sealing engagement device (5) comprises a nailing area (51) delimited and circumscribed by a sealing engagement area (52), the latter being made of an adhesive and/or thermally adhesive and/or hot melt material, wherein the nailing area (51) is preferably devoid of the adhesive and/or thermally adhesive and/or hot melt material of which the sealing engagement area (52) of the sealing engagement device (5) is made. In order to ensure the optimal sealing of the nailing area (51) so as to protect both the integrity of the area of the tile body (2) surrounding the insertion area of the anchoring nail by making it watertight and the integrity of the anchoring nail that is inserted therein, the sealing engagement area (52) of the sealing engagement device (5) is suitably sized to enable both the sealing of at least the head of the anchoring nail inserted in the nailing area (51) and, as shown for example in FIG. 7, to allow the sealing engagement area (52) of the sealing engagement device (5) to be bondingly engaged with the overlying bituminous tile (1). In more detail as to the present invention, the sealing engagement area (52) of the sealing engagement device (5) can also be at least partly protruding with respect to the plane on which the nailing area (51) lies, which coincides with the plane of the upper face (21) of the tile body (2). Preferably, although not necessarily, the sealing engagement area (52) is made in such a way as to be protruding with respect to the nailing area (51) thus having such a thickness as to compensate at least for the thickness of the head of the anchoring nail when the latter is inserted on the nailing area (51) of the sealing engagement device (5). As an alternative, it is also possible that the thickness of the head of the anchoring nail being inserted on the nailing area (51) of the sealing engagement device (5) is compensated for by means of the proper sizing of the sealing engagement area (52) which should be such as to compensate for any deformations induced on the tile body (2) by the head of the anchoring nail in an inserted condition in order to allow, in any case, that in a laid condition the bonding engagement of the sealing engagement area (52) of the sealing engagement device (5) with the overlying bituminous tile (1) enables the sealing of the nailing area (51) and of the head of the inserted anchoring nail.
[0039] In a possible variant of the invention the sealing engagement device (5) is made in such a way that the adhesive and/or thermally adhesive and/or hot melt material involves both the sealing engagement area (52) and at least partially the nailing area (51). In a further possible variant, in order to make the nailing area (51) evident, the colour of the nailing area (51) itself is different from the colour of the sealing engagement area (52). As it is particularly shown in the examples as in FIGS. 1 to 3, the positioning of the sealing engagement devices (5) is such that they are arranged parallel to each other along the same line, wherein each sealing engagement device (5) is preferably equidistant from the adjacent one, said sealing (51) of the sealing engagement device (5) is preferably smaller than the size of the sealing engagement area (52). In the example of FIG. 1 the shape of the sealing engagement area (52) of the sealing engagement devices (5) that are placed above the separation cuts (4) is such as to comprise a first horizontal band (521) and a second horizontal band (522), parallel to each other, and wherein the first horizontal band (521) is shorter than the second horizontal band (522), wherein said horizontal bands (521, 522) are joined by two reciprocally parallel vertical bands (523, 524), wherein the nailing area (51) is included between said horizontal (521, 522) and vertical bands (523, 524) and is of an ideally rectangular shape with hollows (525) in an intermediate position and bevelled corners. Furthermore, in the example of FIG. 1, the sealing engagement devices (5) that are placed in the vicinity of the left side (24) and of the right side (25) of the tile body (2) respectively are made in such a way that the sealing engagement area (52) is essentially shaped as a rectangular perimeter, wherein the shape of the nailing area (51) is rectangular as well. In the example of FIG. 2 and of FIG. 3, the sealing engagement devices (5) are made in such a way that the shape of those that are placed above the separation cuts (4) is such that the contour of the sealing engagement area (52) comprises an upper horizontal band (526) below which and joined to which there is a “U” wall (527), wherein the nailing area (51) is rectangular. Furthermore, in the example of FIG. 2 and of FIG. 3, the sealing engagement devices (5) that are placed in the vicinity of the left side (24) and of the right side (25) of the tile body (2) respectively are made in such a way that the sealing engagement area (52) is essentially “P”-shaped.
[0040] From an operational point of view, in a known way, the arrangement the bituminous tiles (1) for the purpose of making the roof covering is carried out by engagement devices (5) being preferably placed above the separation cut (4) limiting the flaps (3) of the tile body (2). In order to facilitate the correct positioning of the anchoring nails in such a way as to enable an unequivocal identification of the nailing point suitable for allowing the overlying bituminous tile (1) in a laid condition to perform the correct anchorage of the bituminous tile (1) underlying the one to be anchored, the nailing area (51) of each sealing engagement device (5) is positioned on the tile body (2) so as to be placed immediately below the axis joining the first reference wall (251) of the right side (25) and the upper wall (242) of the reference protrusion (241) of the left side (24) of the tile body (2). In any case, as it can also be seen from what is shown for example in FIG. 7, the nailing area (51) of each sealing engagement device (5) is positioned on the tile body (2) in such a way as to be part of what is intended to be the known nailing strip of the bituminous tile (1), wherein by nailing strip one means the area of the tile body (2) within which the nailing has to conveniently occur for the purpose of enabling the reciprocal engagement of the bituminous tile to be nailed to the underlying bituminous tile (1).
[0041] The sealing engagement device (5) can be made in such a way that both the shape of the sealing engagement area (52) and the shape of the nailing area (51) may be the most varied provided that they comply with the characteristics that have been described and at least provided that the sealing engagement area (52) constitutes the perimeter of the nailing area (51) and the nailing area (51) itself is positioned on what is intended to be the nailing strip of the bituminous tile (1) which, in the described exemplary embodiment, is placed in the area between the upper wall (242), the lower wall (243), the first reference wall (251) and the second reference wall (252) of the tile body (2). Furthermore, the size of the nailing area arranging the bituminous tiles (1) in such a way that they are aligned in parallel rows, wherein the bituminous tiles (1) of the following row partially overlap those of the previous row. After arranging the first row of bituminous tiles (1) on the covering foundation and after anchoring them to said covering foundation by inserting the anchoring nails placed in correspondence of the nailing area (51) of the sealing engagement devices (5), the arrangement of the second row of bituminous tiles (1) occurs, in a known way, by laying a series of bituminous tiles (1) that partially overlap the bituminous tiles (1) forming said first row. Said bituminous tiles (1) forming the second row are placed in such a way that the upper wall (242) of the reference protrusion (241) of the left side (24) of the tile body (2) and the first reference wall (251) of the right side (25) of the tile body (2) are positioned so as to coincide with the upper longitudinal side (23) of the bituminous tiles (1) of said first row. Furthermore, the bituminous tiles (1) of the second row are positioned in such a way that their flaps (3) are offset with respect to the flaps (3) of the bituminous tiles (1) forming the first row. Because of said positioning of the bituminous tiles (1), as it can also be seen from the example of FIG. 7, the sealing engagement devices (5) of the tiles (1) of the first row will bondingly engage the flaps (3) of the bituminous tiles (1) of the second row, overlying the bituminous tiles of the first row. The bonding engagement of the flaps (3) of the bituminous tiles (1) of the second row on the sealing engagement area (52) of the sealing engagement devices (5) of the bituminous tiles (1) of the first row simultaneously enables the reciprocal engagement of the bituminous tiles (1) and the sealing of the nailing area (51), with the anchoring nail inserted, of the sealing engagement device (5). Considering the above, the sealing engagement devices (5) therefore have the triple function of making immediately visible the optimal positioning area of the anchoring nail, in such a way that it can also unfailingly engage the bituminous tile (1) underlying the one to be anchored; of sealing the insertion area of the anchoring nail by making it watertight as well as of performing the bonding engagement of the bituminous tiles that in a laid condition are overlapped, particularly enabling the anchorage of the flaps (3).
REFERENCE
[0042] (1) Bituminous tile [0043] (2) tile body [0044] (21) upper face [0045] (22) lower face [0046] (23) upper longitudinal side [0047] (24) left side [0048] (241) reference protrusion [0049] (242) upper wall [0050] (243) lower wall [0051] (25) right side [0052] (251) first reference wall [0053] (252) second reference wall [0054] (3) flap [0055] (4) separation cut [0056] (5) sealing engagement device [0057] (51) nailing area [0058] (52) sealing engagement area [0059] (521) first horizontal band [0060] (522) second horizontal band [0061] (523, 524) vertical bands [0062] (525) hollows [0063] (526) upper horizontal band [0064] (527) “U” wall
