FR2466581A1 - LATTE FOR ROOF - Google Patents

Abstract

at. Roof batten. b. Slat characterized in that it has recesses which ensure the passage of ventilation air, and possibly the flow of penetrating water. vs. The invention applies in particular to roofs comprising a thermal insulation. (CF DRAWING IN BOPI)

Description

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  The invention relates to a roofing slat intended

  born to allow the attachment of roofing tiles or the like.

  In one of the usual roofs to date, it is first nailed on the roof rafters of the planks on which are then placed strips of cardboard or sheets of synthetic material intended for

  seal against dust, water or snow.

  Then, a slatted trellis, also known as

  counter-lattice and finally the roof slats clean-

  said on which are hung tiles or analogues.

  The trellising counter-lattice, which is usually arranged perpendicular to the roof, is especially used to provide ventilation through and behind the roof tiles. In addition, it ensures a certain flow of water having possibly penetrated behind

the roof tile.

  The disadvantage of such a method of building up the roof lies not only in the many different operations to be performed which require a lot of time, but also in the fact that such a roof does not constitute any

  isolation from heat or cold.

  Recently, the trend has therefore been to

  In addition, such insulation against heat and cold should be installed on the roof. Apart from fiberglass insulating webs, foams of foamed material, of synthetic material, in particular of polyurethane or of commercial styrofoam, which are not placed between the rafters, are more and more used for this purpose. , but which are arranged in such a way that the roof is protected on its entire surface against the external heat.Therefore arises a new problem peculiar to the sheets of synthetic foam material, because, due to the effect the plates can not be nailed to them in the usual way, neither the battens lattice nor the roof lattice itself.This fastening is only possible by filling the slats with holes o they must be nailed.

  mention in this connection that the new requirements concerning

  thermal insulation, eg a German regulation of 1 November 1977, polyurethane insulating

  expanded must have a thickness of at least 60 millimeters.

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  The object of the invention is to provide a roofing slat which makes it possible to dispense with the counter lattice in the staircase, both in the case of roofs provided with planks or flights with sheets of cardboard or synthetic material, or in roofs where the expanded foam sheets

  rest directly on the rafters.

  For this purpose, the roof batten conforms to

  the invention is characterized in that it has

  transversely to its longitudinal axis which ensure the passage of ventilation air and / or the flow of infiltration water. These recesses are preferably provided on the underside of the roof batten, that is to say on the side which is turned towards the rafters or the flights, which ensures at the same time a good ventilation and a good flow of the water. If it is simply a good ventilation, the recesses can be arranged in the middle of the batten or on its upper face. In the latter case, it suffices only to return the lath according to the invention in which the

  recesses are on its underside.

  The cross-section of the passage recesses of the air and / or water is chosen so that it corresponds to the rules of construction. The sum of the cross-sections of the recesses must then correspond to the

  less one-three thousandth of the surface of the roof.

  The roofing slat itself can present

  ter any desired shape to allow secure hanging of the roof tiles. Preferably, the slats conform to

  the invention have a shape whose cross-section represents

  a rectangle, a square, a right triangle, a right angle or a U-shaped section. Depending on the material in which the slats according to the invention are manufactured, they may be

  massive or with an inner hollow. They may be

  killed in a nailing material, or otherwise be

  views of holes for the passage of fastening nails.

  According to one embodiment of the invention, the slats are provided, on their lower surface, that is to say the face which, after installation, is turned towards the rafters or the flights, of a lower plate which is wider than the batten and which can either be aligned with one of the edges

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  longitudinal lines of the lath, either to extend from it on both sides. Depending on whether the slat is made of a solid material or, for example, by an angled plate, the bottom plate may at the same time participate in the cross-sectional profile of the slat. In the case where the batten according to the invention is made as a U-shaped profile, the bottom plate can be arranged in such a way that it protrudes outwards only on each side, so that a final result is obtained. cross section of batten open downwards. In the case where the slat is hollow and has a cross section in the form of a rectangle or right triangle, the lower plate which projects on one of the sides may in

  at the same time constitute the lower surface of the slat, to which.

  cases are provided, in the projecting portion of the lower plate, bores allowing the nail lath of the batten on the roofing. This canopy can then consist of boards covered with tarboard or sheet-of

  synthetic material, or sheets of juxta foam material

posed.

  Naturally, the Lower Plate can be

  reported afterwards on the roof battens according to the invention.

  tion, so that the slat can be made not of one material but of two materials

different.

  In the case where the batten according to the invention is made of sheet metal, for example a galvanized iron plate, it is then manufactured by continuous or discontinuous stamping of a strip of sheet, so as to produce, at the locations

  circular, semicircular, rectangular recesses

  gular or other. Simultaneously, or in a subsequent operation, the holes required for nailing are made in the projecting lower plate. Then, the sheet metal strip is

  curved to obtain the desired cross-sectional shape.

  Of course, such profiles can also be obtained by extrusion, for example from suitable aluminum alloys or synthetic materials, reinforced if necessary by the addition of fillers such as glass fibers. The recesses and nailing bores are then made by known techniques, for example by milling

or drilling.

  According to a particularly advantageous embodiment of the invention, the slat according to the invention is used for the manufacture of covering elements described in German Pat. No. 25 32 853. These elements consist of a basic body, essentially board-shaped,

  especially in foamed expanded polyurethane resin, and a

  batten for fastening tiles or the like, extends

  on the entire longitudinal edge of this basic body, this batten resting on the edge facing upwards of the body of

  base and projecting beyond this edge. This slug constitutes

  then the roof batten according to the invention. For better cohesion with the base body, the bottom plate is bent at the end and perforated and penetrates into the body of foam material. The outward projecting bottom plate is then placed below the coating, for example an aluminum foil coating, so that water can flow without contacting the foam material. Naturally, the roof batten according to the invention can also be used with other base bodies in the form of a board as indicated in the patent cited.

upper.

  The invention is explained below with the help of a nonlimiting example with reference to the accompanying drawings-in which - Figure 1 is a perspective view of the

  end portion of a roof batten according to the invention.

  provided with rectangular recesses.

  FIG. 2 is a similar perspective view

  in Figure 1 of another embodiment of the invention.

  FIGS. 3 to 7 are perspective views

  other embodiments of the invention.

  - Figure 8 shows an example of implementation

  a roof batten according to the invention.

  In Figure 1, the roof batten is provided with recesses of rectangular shape. It can be made of any desired material such as wood or synthetic material. The recesses can be made in

  lath by milling. But lath can also be

  killed in such a way that battens are spaced apart

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  on a basic body shaped board transversally to the

  longitudinal direction to thereby form the recesses.

  Figure 2 is a similar perspective view of a slat in which the recesses have the shape of half circles, or, if they are located in the middle of the slat, they form in it a tubular channel la. The lath of the

  Figure 2 and Figure 1 have a trans-

versale shaped rectangle.

  FIG. 3 is a similar perspective view of a slat provided with recesses 1 and having a section

  cross-section in the shape of a right triangle.

  Figure 4 shows a roof batten according to the invention which has, in cross section in the form of a right angle bracket, which may be an iron corner profile, covered if necessary with synthetic material. The batten has recesses 1 and holes 4 for nailing. The lower wing of the angle iron is practically

the bottom plate of the batten.

  In FIG. 5, the slat has a cross-section in the form of a hollow rectangle triangle, in which the bottom edge is extended and forms the projecting bottom plate on a side. We see again the recesses 1 and

the holes 4 for nailing.

  In FIG. 6, the batten according to the invention is formed by adding a lower plate 2 to a batten according to FIG. 1 or FIG. 2. This embodiment can also be made in one piece, for example by extrusion. of a plastic batten in which one

  then forms the recesses 1 by cutting.

  Figure 7 shows a slat according to the invention.

  which is hollow and open downwards and in which lower plates 2 are arranged on each side of the body

  hollow. This slat, like that of FIG. 5, can be manufactured

  stamping of a wide sheet metal strip to produce the recesses 1, after which the sheet is given, by folding, the

desired shape for the lath.

  FIG. 8 shows a slat obtained by folding a sheet after preliminary stamping of the recesses 1. The bottom plate protrudes only on one side beyond the longitudinal edge of the slat and, in its end 7 folded towards

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  at the bottom, are perforations 6 through which the synthetic material can penetrate to achieve a solid connection between the lower plate and a foam material sheet expanded 5. At the same time, this figure shows an example of use of the latte according to the invention for producing the roof element described in German Pat. No. 32 853, in which the roof batten, here referred to as the support batten, is folded over the longitudinal ridge

  of the plate-shaped base body which is constituted for example by

  made of expanded polyurethane foam resin. In this case, it is also possible to use, instead of the batten shown in FIG. 8, a batten according to FIG.

  by bending it appropriately.

  The roof battens according to the invention can be made in any desired length, as well as the roof elements made with slats of the invention and a base body in the form of a plate. In practice, lengths of four meters have proved favorable. The

  height h of the lath corresponds to the height of the traditional slats

  which, depending on the size of the nose,

  Tile tiles opt a height of 1.5 to 2.5 centimeters.

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Claims (3)

REVENDI CATIONS) Latte for roofing, for fastening tiles or the like, batten characterized in that it has recesses (1) which ensure the passage of ventilation air, and possibly the flow of penetration water . Latte according to claim 1, characterized in that its cross-section has the form of a rectangle, a square, a right-angled triangle, a U-shaped section or a rectangular angle.   30) Latte according to one of claims 1 and   2, characterized in that it is solid or hollow inside, made of a material that can be nailed, or otherwise provided   piercing holes through the nails.   4) Latte according to any of the claims   cations 1 to 3, characterized in that on the side which, after   laying, is turned towards the rafters or the voligging of coverings   it is provided with a lower plate wider than the batten, aligned with one of the longitudinal   the batten, or protruding on both sides of the batten.   50) Latte according to any of the claims   cations 1 to 4, characterized by cross-sectional shapes   various types of work, notably allowing its use to constitute   autonomous roof elements with integrated batten.