EP0309959A1 - Unter den Dachziegeln liegende wasserdichte Platten, insbesondere geeignet zur Verhinderung des Gleitens der Ziegel - Google Patents
Unter den Dachziegeln liegende wasserdichte Platten, insbesondere geeignet zur Verhinderung des Gleitens der Ziegel Download PDFInfo
- Publication number
- EP0309959A1 EP0309959A1 EP88115794A EP88115794A EP0309959A1 EP 0309959 A1 EP0309959 A1 EP 0309959A1 EP 88115794 A EP88115794 A EP 88115794A EP 88115794 A EP88115794 A EP 88115794A EP 0309959 A1 EP0309959 A1 EP 0309959A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- scorings
- tiles
- scored
- waterproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
Definitions
- the present invention relates to waterproof plates to be inserted between the tiles and the supporting girders of a roof, to avoid that possible water seepages around or through the tiles cause the girders to be damaged, are shaped so as to avoid or minimize the probability of sliding of said tiles onto said plants even in the case of highly inclined roofs. It is known since long time that the roofs covered by baked clay tiles, especially the curved tiles, show extraordinary properties of mechanical strength to loading and impact as well as resistance to corrosive environmental and chemical agents.
- plates of waterproof materials such as plates of resin materials of the type as polyvinylchloride (PVC), acrilic-butadiene-styrene copolymers (ABS), etc., or plates of fiber materials, such as paper board, impregnated with bitumen, (the typical plates of bitumized paper board) to be interposed between the covering tiles and the roof supporting structures, said plates acting as an waterproof auxiliary roofling, adapted to prevent possible seepages of water around the integer tiles or through perforated, cracked or anhyhow damaged tiles from reaching structural parts of the roof, such as girders, which can be possibly damaged by said seepages, and acting as well as a supplementary support for said tiles, the supporting capacity of the girders being
- both resin plates and bituminized paper board plates have been provided, which gave excellent results as regards the supplementary waterproofing given therefrom, the resin plates being preferred where a particularly certain additional waterproofing is sought for and the cost control is not the main problem, those of bituminized paper board being preferred in the case in which said expenses are to be controlled.
- planar or corrugated plates shall be used, the corrugated plates being selected with a pitch and a wave height such as to conform to the said tiles.
- a first system consists in roughing by abrasion, sanding or blasting the surfaces facing towards the tiles of the plates of resin materials.
- bituminized paper board plates As regards the bituminized paper board plates, the roughing by abrasion is not effective since the paper board fibres tend to form lints under abrasion and the sand addition is of questionable effectiveness since said sand tends to be readily detached from the bituminized paper board, the bitumen in the winter time becoming fragile owing to the low temperatures and in the summer time becoming soft owing to the high temperatures, whereby in any case the detachment of the sand granules is promoted.
- Another solution according to the prior art consists in passing the paper board plates, still in the moistened condition, before their entry in the drying section, through a roller pair, one of which has a knurled surface leaving onto one surface of said paper board plate an impression similar to that of the net in the planar table.
- the purpose of the present invention is that of providing undertile waterproof plates, both of planar and of corrugated type, shaped so as to avoid the sliding of the tiles especially in roofs with highly inclined sides.
- Another purpose of the present invention is that of providing undertile waterproof plates of thermoplastic resin materials.
- a third purpose is that of providing said waterproof plates of bituminized paper board.
- undertile waterproof plates having essentially rectilinear scoring or depression, with clean edges and oriented perpendicularly to rows of tiles to be laid down onto the plates themselves.
- said scorings have rectangular profile.
- said scorings have triangular profile.
- said scorings have serrated profile.
- said plates are formed by thermoplastic material.
- said thermoplastic material is polyvinyl chloride (PVC).
- said thermoplastic material consists of acrilic-butadiene-styrene copolymers (ABS).
- said plate of thermoplastic material if of the planar type, is manufactured by means of an extruder having an extruding die shaped as a slot with a rectilinear major side and the opposite major said of tortuous shape.
- said plate of thermoplastic material if of corrugated type, is manufactured by corrugating a planar plate with a second face as above defined.
- said plates of bitumen impregnated paper board of planar type are provided with scorings perpendicular to the rows of tiles to be laid down onto the plates themselves, while still in the moistened state and before being impregnated with bitumen, by means of a roll scored parallely to the generating line thereof pressing the paper board plates against another smooth roll.
- said plates of bitumen impregnated paper board, of corrugated type are provided with scorings perpendicular to the generating lines of these corrugations, by impressing said scoring onto a face of said paper board plates of planar type, while still in the moistened condition and before being bituminized, by means or a roller scored parallely to its generating lines, as above described, and subsequently carrying out the corrugation of the paper board, still moistened, between other roller pairs.
- said plates of bitumen impregnated paper board, of planer type are scored by manufacturing said paper board from a moistened paper pulp laid down onto a roller scored along its generating lines, in order to obtain scorings perpendicular to the direction of the paper fibers and so that the paper fibers nearest to the roller are positioned according to the scorings of said roller and subsequently are positioned in a manner less and less tortuous until they take a smooth pattern, whereby the surface of the paper board facing the scored roller is scored, whereas the opposite surface is smooth.
- said plates of bitumen impregnated paper board, of corrugated type are firstly scored at one surface by manufacturing said paper board from a moistened paper pulp, according to the above described method, leading to scorings perpendicular to the plate forming direction and to the direction of the paper fibers, and then by corrugating said just formed paper board, still moistened, according to corrugations having generating lines perpendicular to said scorings onto one surface.
- a Roman roof 10 is seen as formed by roof tiles 12, the junctios of which are covered by curved tiles 14, the roof tiles 12 abutting onto scored undertile plates of planar type 16.
- the scoring of said undertile plates may have whatever profile useful to prevent the tiles from sliding, such as rectangular, trapezoidal, triangular, serrated or like profiles, the profile illustrated in figure 3A being rectangular and that shown in figure 3A being the particular type of triangular profile known as serrated profile.
- the undertile plates which are therein respectively indicated as 16a and 16b , are abutting onto a girder or slab 18 by which they are supported, the plate 16a having rectangular ribs 17 alternating with the depressions 19, the plate 16b having serrated ribs 17b.
- a roof with tiles 20 comprises, as it is known since very long time, curved tiles 22, the channel is which of upwardly facing, and curved tiles 24 having the channel facing downwardly, the curved tiles 22 with the channel facing upwardly being abutted against scored undertile plates of corrugated type 26.
- the scoring of said undertile plates may have whatever profile useful to prevent the tiles from sliding, such as rectangular, trapezoidal, triangular, serrated or like profile, the profile illustrated in the figure 4A being rectangular and that shown in the figure 4B being the particular type of triangular profile known as serrated profile.
- the undertile plates which are therein respectively indicated by 26a and 26b are supported onto a slab or girder 28 by which they are supported, the plate 26a showing rectangular ribs 27a alternating with depressions 29 and the plate 26b having serrated ribs 27b.
- planar undertile plates 16a and 16b The action of the planar undertile plates 16a and 16b, figures 3A and 3B is illustrated hereinafter.
- the roof tiles 12 abut against said undertile that 16a of figure 3A with the upper edge restrained in a depression 19 between two ribs 17a.
- planar tiles 12 abut against said undertile plate 16b of figure 3B with the upper edge fixed between two serrated adjacent ribs 17b and more particularly with the edge abutted against the less inclined profile of one of said ribs and the immediately adjacent edge area abutted against the upper edge of the immediately next rib.
- the curved tiles 22 abut onto said undertile plate 26a of figure 4A with the upper edge restrained in a depression 29 between two ribs 27a.
- An accidental displacement of one of said tiles to the position 22′, illustrated by dash and dotted lines in figure 4A causes the upper edge of said tile to be more deeply restrained in the depression 29′ adjacent or anyhow close to the depression 29 in which it was originally restrained, pressing moreover with a greater force and pushing against the rib 27a which is immediately adjacent, with the attendant great increase of the friction coefficient between the tile and the undertile plate, by which any further sliding of the tile itself is prevented.
- the curved tiles 22 abut onto said undertile plate 26b of figure 4B with the upper edge restrained between two adjacent serrated ribs 27b and more particularly with the corner abutting onto the less inclined profile of one of said ribs and the edge area which is immediately adjacent abutted onto the upper edge of the immedi strictlyately next rib.
- Said extruder 100 comprises a die or extrusion mold 110 having a tortous upper edge, which in the shown example is shown as rectangular profile but may have any other profile useful in the production of cross scorings, and with a straight lower edge.
- a scored plate 116 is extruded which is pushed onto a conveying table comprising two supporting posts 112 which support idle rollers 114 permitting the forwarding of said plate 116.
- the plate 116 is provided with scorings oriented in the extrusion direction indicated by the arrow 115, comprising protruding ribs 117 and depressions 119, all of retangular profile.
- the profile of said scorings may be different and, particularly, may be the serrated profile shown in figure 3B It is also obvious for the skilled person how from said planar plate 116 a corrugated plate can be obtained by using a corrugating machine.
- Said scoring may be provided in several manners among which the preferred ones are the use of a scoring machine formed by two rollers one of which has a planar cylindrical surface to rearwardly support a wetted paper board and the other has a scored surface in the direction of the generating lines with scorings of square, rectangular, triangular of serrated section to press and impress and scoring of the plate.
- the two cylinders may be spaced in adjustable manner from each other, whereby an impression more or less deep can be impressed.
- a felt belt 130 is passed, moving according to a direction 132 and carrying a layer of paper pulp 134, under a roller 136 with rectangular scoring by which the pulp of the layer 134 is detached from the felt 130 and accumulated onto said roller 136 to form a layer in form of a cylindrical endless sheet 138.
- the fibres of paper pulp having a length much less than the spacing between the scorings of the roller 136 at the and beginning are positioned so as to follow said scoring namely following their contour. As the thickness of the cylindrical endless sheet 138 increases , the fibers are positioned according to a more and more regular and smooth pattern until said scorings are no longer followed.
- the roller 136 during the rotation does continuously accumulate paper pulp until a required thickness is achieved, and at that time a blade 140, housed within a cavity 142, comes out cutting the cylindrical endless sheet 138 which is thus opened and detached from the roller 136 it being removed by means of a sliding table (not shown) for the conveying to a further drying.
- the sheet of fresh paper board 116a which on one side has a scoring form by protruding ribs 117a and depressions 119 is formed by a plurality of layers 120-128 in which the fibers of the upper layers 120-123 follow in a progressively less marked manner the said scoring and those of the layers 124-128 are essentially smooth as the lower surface of said sheet.
- a felt belt 150 moving alone a direction 152 and conveying a layer of paper pulp 154, is passed under a roller 156 having a scoring of the so-called serrated shape, by which the pulp of the layer 154 is detached from the felt 150, it being accumulated onto said roller 156 to form a cylindrical endless sheet 158.
- the fibers of paper pulp having length much less than the space between scorings of the roller 156, are initially positioned according to said scorings namely following their contour. As the thickness of the cylindrical endless sheet 158 increases, the fibers are positioned according to a more and more regular and smooth pattern until said scorings are no longer followed.
- roller 156 during the rotation continuates to accumulate paper pulp until a required thickness is achieved , and at that time a blade 160 housed in a cavity 162 comes out cutting the cylindrical endless sheet 158 which is opened and detached from the roller 156, it being removed by means of a sliding table for the forwarding to the further drying.
- the sheet of fresh paper board 116b which on one side has a scoring formed by serrated ribs 117b, is formed by a number of layers 163-170 in which the fibers of the layers 163 and 166 follow in a lesser and lesser marked manner said scorings and those of the layers 167-170 are essentially smooth as the lower surface of said sheet.
- both the sheet of paper board 116a and the sheet 116b can be dried in a planar form or, before the final drying, may be passed through a corrugating machine by which a corrugation perpendicular to the direction of their scorings is given.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2206087 | 1987-09-29 | ||
IT22060/87A IT1222760B (it) | 1987-09-29 | 1987-09-29 | Lastre impermeabili sottotegole particolarmente adatte ad evitare lo scivolamento delle medesime tegole |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0309959A1 true EP0309959A1 (de) | 1989-04-05 |
Family
ID=11190881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88115794A Withdrawn EP0309959A1 (de) | 1987-09-29 | 1988-09-26 | Unter den Dachziegeln liegende wasserdichte Platten, insbesondere geeignet zur Verhinderung des Gleitens der Ziegel |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0309959A1 (de) |
IT (1) | IT1222760B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061045A (en) * | 1988-09-02 | 1991-10-29 | Hitachi, Ltd. | Liquid crystal light modulation device and liquid crystal light modulation apparatus |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR989373A (fr) * | 1949-06-21 | 1951-09-07 | Plaques nervurées pour sous-toiture et leur mode d'utilisation | |
DE1609986A1 (de) * | 1965-11-19 | 1970-07-16 | Heinrich Hebgen | Unterdach zur Isolierung von Daechern aus Dachziegeln od.dgl. |
DE2050552A1 (de) * | 1970-10-15 | 1972-04-20 | Oberschwäbische Metallwarenfabrik GmbH & Co KG, 7940 Riedlingen | Bauelement zum Herstellen leichter Flächentragwerke |
FR2183430A5 (en) * | 1972-05-04 | 1973-12-14 | Panneaux Beton Ind Chimi | Mould for reinforced slab mfr - with eg resin bound cements cast to enclose prestressed reinforcing wires |
FR2422003A1 (fr) * | 1978-01-11 | 1979-11-02 | Hue Bernard | Plaque isolante, support de tuiles, d'ardoises ou de bardeaux bitumineux |
GB2041782A (en) * | 1979-02-03 | 1980-09-17 | Pre Seal Co Ltd | Coated chipboard panels |
FR2478706A1 (fr) * | 1980-03-24 | 1981-09-25 | Lesage Michel | Panneau-support pour elements de couverture |
EP0063550A2 (de) * | 1981-04-16 | 1982-10-27 | PIRCHER S.p.A. | Vorgefertigtes Bauelement, insbesondere für die Herstellung von Ziegeldacheindeckungen |
-
1987
- 1987-09-29 IT IT22060/87A patent/IT1222760B/it active
-
1988
- 1988-09-26 EP EP88115794A patent/EP0309959A1/de not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR989373A (fr) * | 1949-06-21 | 1951-09-07 | Plaques nervurées pour sous-toiture et leur mode d'utilisation | |
DE1609986A1 (de) * | 1965-11-19 | 1970-07-16 | Heinrich Hebgen | Unterdach zur Isolierung von Daechern aus Dachziegeln od.dgl. |
DE2050552A1 (de) * | 1970-10-15 | 1972-04-20 | Oberschwäbische Metallwarenfabrik GmbH & Co KG, 7940 Riedlingen | Bauelement zum Herstellen leichter Flächentragwerke |
FR2183430A5 (en) * | 1972-05-04 | 1973-12-14 | Panneaux Beton Ind Chimi | Mould for reinforced slab mfr - with eg resin bound cements cast to enclose prestressed reinforcing wires |
FR2422003A1 (fr) * | 1978-01-11 | 1979-11-02 | Hue Bernard | Plaque isolante, support de tuiles, d'ardoises ou de bardeaux bitumineux |
GB2041782A (en) * | 1979-02-03 | 1980-09-17 | Pre Seal Co Ltd | Coated chipboard panels |
FR2478706A1 (fr) * | 1980-03-24 | 1981-09-25 | Lesage Michel | Panneau-support pour elements de couverture |
EP0063550A2 (de) * | 1981-04-16 | 1982-10-27 | PIRCHER S.p.A. | Vorgefertigtes Bauelement, insbesondere für die Herstellung von Ziegeldacheindeckungen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061045A (en) * | 1988-09-02 | 1991-10-29 | Hitachi, Ltd. | Liquid crystal light modulation device and liquid crystal light modulation apparatus |
Also Published As
Publication number | Publication date |
---|---|
IT8722060A0 (it) | 1987-09-29 |
IT1222760B (it) | 1990-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE FR LI NL |
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17P | Request for examination filed |
Effective date: 19890927 |
|
17Q | First examination report despatched |
Effective date: 19900730 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19911126 |