Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
  • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
  • E04D13/17—Ventilation of roof coverings not otherwise provided for
  • E04D13/174—Ventilation of roof coverings not otherwise provided for on the ridge of the roof
  • E04D13/176—Ventilation of roof coverings not otherwise provided for on the ridge of the roof formed by flexible material suitable to be rolled up

Definitions

• the invention relates to a sealing mat according to the preamble of claim 1, to a method for producing such a sealing mat according to the preamble of claim 10 and to a fabric material for use in such a sealing mat.
• a sealing mat and a manufacturing method of this type are known from the older German patent application 196 04 256.9.
• sealing mats are available on the market, which consist of an elastic, water-repellent and air-permeable roller tape that has peel-off adhesive strips on its edges.
• the roller tape is placed lengthways over the ridge or ridge slat and glued to the adjacent roof covering with its peel-off adhesive strips. Since roofing slabs usually do not have a flat, but a curved (pan-shaped) surface, either the roller belt is pleated over its entire width like a bellows or only the edge areas to be glued are pleated or cut into fringes. Then the ridge or ridge stones are placed over the finished waterproofing mat and held in place with clips.
• the sealing mats available on the market have different design features.
• the simplest variant is to use an approximately 13 mm thick foam strip for the roller belt, which is up to 99 percent permeable to air.
• the middle area and the edge areas of the foam strip are thermally compressed to a thickness of approximately 1 mm, the middle area remaining flat and the edge areas being profiled in a wave shape. Because of their extremely low weight and large area at the same time, when laying the known foam sealing mat on the roof there is always the risk that the sealing mat will be carried away by the wind.
• a second variant consists in using an approximately 1.5 mm thick strip of soft, smooth thermoplastic material with a high specific weight (high-pressure polyethylene) for the roller belt, which has two rows of finger-shaped incisions that run parallel to its central area.
• the finger-shaped cutouts connected to the central area remain in their horizontal position, while the parts between the finger-shaped cutouts and the edge areas of the strip hang downward.
• the fingertip-shaped cutouts such as flaps open and open appropriately shaped openings in the strip through which the desired air exchange can take place. Because of the use of a soft, smooth thermoplastic material, the edge zones cannot be pleated, but must be cut into fringes.
• a third variant consists in using an extremely thin and light, needle-perforated plastic fleece of low rigidity for the roller belt, which is reinforced on both edge areas with metal strips made of aluminum foil on the top and in the middle area with a reinforcement strip made of stiffer, thicker plastic fleece on the underside.
• the known roller band is pleated over its entire width by profile rolling after the metal strips and the reinforcement strip have been stuck on.
• both superimposed nonwovens in the central area are provided with punched holes, the distance of which in the longitudinal direction of the strip corresponds to approximately half the pitch of the pleating.
• a flat pull tape made of fleece which is glued to the top of the pleated center area, covers the punched holes and, together with the punched holes and the pleats of the pleated and reinforced plastic fleece, forms a large number of cross ventilation channels in the middle area. Because of the use of an extremely thin and light fleece, the weight of the known sealing mat is very low despite the use of additional metal and reinforcement strips, so that there is always a risk that the sealing mat will be carried away by the wind when laying on the roof. The use of a thicker and / or denser fleece to increase weight is forbidden because such a fleece has such a high stiffness due to the continuous pleating in the transverse direction that the sealing mat can no longer be sufficiently bent from its longitudinal center against the roof covering panels.
• the sealing mat known from the earlier patent application 196 04 256.9 is based on the consideration that a perforated rubber or rubber band is best suited for air-permeable sealing.
• the high density and thus the high specific weight of a rubber tape are the best prerequisites for the fact that such a tape material can be processed on the roof even in strong winds without running the risk that the sealing mat will be carried away by the wind.
• the difficulty with the use of rubber tape is that a rubber tape cannot be pleated permanently due to its elastic properties by means of profile rollers, but always tries to regain its smooth, flat shape.
• the edge areas and the center area of the flat, smooth rubber band are first coated with a thin metal strip, for example aluminum foil, which can be permanently deformed with little effort. Then only the metal strips with the areas of the rubber tape adhering to them are pleated by means of profile rollers. The metal strips are of such a thickness that the elastic restoring forces of the pleated rubber band areas are not sufficient to demold the pleated metal strips, ie to pull them smooth again.
• a smooth drawstring is glued to the pleated metal strips in the center area to ensure the dimensional stability of the pleated center area and thus its constant length under all conditions during assembly.
• the known sealing mats are plastically deformable far too little to be able to reliably seal all joints. Spraying out joints between the sealing mat and the adjacent roof tiles with acrylic or butyl compound would not only be tedious but also not very helpful, since acrylic or butyl compounds are not long-term resistant to the ultraviolet radiation components of sunlight. In the case of butyl mass, this mass is usually dark, which affects the appearance, in particular, of light red or yellow roof tiles.
• the object of the invention is to provide a sealing mat, including a suitable method for its production, which enables an absolutely complete sealing of joints between the sealing mat and roof tiles, even in the case of roof tiles with interlocking edges.
• a method for producing the sealing mat according to the invention is specified in the independent claim 10.
• a fabric material for use in the sealing mat according to the invention is specified in the independent claim 14.
• the invention is based on a radical turning away from edge lamellae or corrugated or pleated edge regions, such as are present in the sealing mats according to the state of the art, which were recognized at the beginning. Furthermore, the invention dispenses with the use of heavy, expensive expanded metal inserts or even lead inserts which are harmful to health in the edge regions of sealing mats, which were originally used when the air-permeable ridge sealing technology was introduced. Rather, the invention is based on the basic knowledge that the optimal material for adhering a sealing mat to the adjacent roof tiles and at the same time for completely sealing joints between them is a relatively wide edge strip made of adhesive rubber material. Such a rubber strip can be easily and almost deformed.
• Adhesive rubber strips are neither air permeable nor UV-resistant, they always have an undesirably dark color and also stick to their top, i.e. where no gluing should take place.
• the invention has not been deterred by these obstacles to the use of relatively wide edge strips made of adhesive rubber material.
• the idea was added to coat the edge strips made of self-adhesive butyl, acrylate or bitumen rubber with a fabric material in the form of a knitted fabric or mesh composite, which has a high elasticity in the longitudinal direction of the sealing mat and a low elasticity in the transverse direction of the sealing mat, so that the fabric material is essentially only stretchable in the longitudinal direction.
• the edge strips made of adhesive rubber material with the fabric material located thereon can be effortlessly and perfectly adapted to the shape and the course of the adjacent roof tiles, with all the joints locked.
• the fabric material prevents the underlying, adhesive rubber material of the edge strips from sticking to the ridge or ridge stones and at the same time protects the rubber material of the edge strips underneath against UV radiation.
• the fabric material can be dyed in the desired color of the roof tiles, so that the dark color of the underlying rubber material of the edge strips remains invisible.
• a roller tape is used for the mechanical connection of the two edge strips, preferably made of perforated or needled (ie, air-permeable) rubber or plastic film or tissue soaked with rubber, to the edge zones of which the adhesive edge strips are glued.
• This bonding of the edge strips consisting of adhesive rubber material is particularly strong and reliable due to the rubber material or the rubber impregnation of the roller belt.
• the fabric material can extend not only over the edge strips, but also over the roller belt, a connection between the roller belt and the tissue material located above it being necessary only in the central region of the roller belt.
• a metal strip for example made of aluminum foil, can be glued on from above in order to stabilize and fix the position of the sealing mat on the ridge or ridge.
• a commercially available polyester knitted fabric is used as the preferred fabric material.
• FIG. 1 shows a section through a first embodiment of the sealing mat according to the invention.
• Fig. 2 shows a cross section through the vented ridge area
• Sloping roof in which the sealing mat according to Fig. 1 is installed below a ridge stone
• Fig. 3 shows a section through a second embodiment of the sealing mat according to the invention.
• FIG. 2 serves to explain the installation position of a sealing mat 10 according to the invention in the forced-vented ridge area of a sloping roof.
• the supporting structure 21 of the roof has a ridge slat 11 which is adjusted on a ridge holder 22 and roof slats 13 which run parallel to the ridge slat 11 and which, for hanging in the fastening lugs 12a, of pan-shaped (arched) roof covering plates 12 (also referred to as “roof tiles”) serve.
• the ridge slat 11 carries arched ridge stones 15 which overlap at their longitudinal ends.
• the ridge stones 15 are held in place by steel clips 14, which in turn are fastened to the ridge beam 11 and hold the ridge stone 15 at a defined distance from the ridge beam 11.
• the height position of the ridge stone 15 is adjusted by means of the ridge holder 22 so that the two lower edges of the ridge stone 15 do not sit on the apex of the arched roof covering panels 12, but only touch this apex.
• the sealing mat 10 is placed with its central region 3 (FIG. 1) on the ridge slat 11 and molded with its two plastically deformable edge regions 2 against the surfaces of the adjacent roof covering panels 12 on both halves of the sloping roof and from these surfaces with the aid of edge strips 6 glued rubber material.
• the air flow 16/17 in the transverse duct 18 draws air (arrow 20) from the roof space 19 through the air-permeable sealing mat 10 and pulls this sucked-in air (arrows 20) onto the lee side of the sloping roof, thereby ensuring effective roof ventilation .
• the sealing mat 10 comprises, as a supporting element, an elastic, water-repellent and air-permeable roller tape 1 made of calendered rubber sheet or of a fabric tape soaked or coated with rubber.
• an air-permeable plastic film can also be provided as the roller belt.
• Ethylene propylene tar rubber (APTK) with a high specific density is preferably used as the rubber material, although butyl rubber can also be used.
• the roller belt 1 preferably has a thickness in the range between 0.2 mm and 2.0 mm and is needle-perforated over its entire surface or provided with punched holes (for example with a hole diameter in the range between 2 mm and 5 mm) to a to ensure good air permeability.
• the width of the roller belt 1 is, for example, 30 cm.
• the roller belt 1 is connected at its edge zones with relatively wide edge strips 6 made of adhesive, plastically deformable butyl rubber, acrylate rubber or bitumen rubber, preferably by gluing under pressure and room temperature.
• the width of each edge strip 6 is 8 cm, for example.
• the sticky underside of each edge strip 6 is protected by peel-off films 7, which are removed when the sealing mat 10 is installed on the roof.
• the sticky upper side of each edge strip 6 is coated with a fabric material 5 in the form of a knitted fabric or mesh structure, which has a high elasticity in the longitudinal direction of the sealing mat 10 and a low elasticity in the transverse direction of the sealing mat 10.
• the fabric material 5 extends essentially only in the longitudinal direction (ie in the longitudinal direction of the ridge batten 11 (FIG. 2).
• the edge strips 6 made of adhesive rubber material with the fabric material 5 thereon can be effortlessly handled (without the hands of the fitter are smeared with adhesive rubber material) and at the same time adapt with plastic deformation to the shape and the course of the adjacent roof covering panels 12 (FIG. 2) with complete sealing of all the joints.
• a polyester knitted fabric with the following features is preferably seen as fabric material 5:
• the fabric material 5 extends not only over the edge strips 6, but also over the roller belt 1.
• a connection between the roller belt 1 and the fabric material 5 located above is only in the middle region in this second embodiment 3 of the sealing mat 10 required.
• a metal strip 4 from above e.g. made of aluminum foil, glued to stabilize and fix the position of the sealing mat 10 on the ridge batten 11 (Fig. 2).
• the width of the metal strip 4 is 4 cm, for example.
• the edge strips 6 made of self-adhesive rubber material are glued to the edges of a smooth roller belt 1, which are each covered on their underside with a peel-off film 7. At least the top of the edge strips 6 made of rubber material is coated with the fabric material 5 described above (FIG. 1). However, the fabric material 5 can be applied both over the edge strip 6 and over the roller belt 1 lying in between (FIG. 3). If the roller band 1 is covered with fabric material 5 (FIG. 3), the fabric material 5 is connected in the central region 3 of the sealing mat 10 to the roller band 1 underneath. Subsequently, the roller tape 1 is glued onto the fabric material 5 or (if the fabric material 5 only covers the edge strips 6; FIG. 1) in the central region 3 of the sealing mat 10 of the metal strips 4, for example made of aluminum foil, for example by means of thermal lamination.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Laminated Bodies (AREA)
• Roof Covering Using Slabs Or Stiff Sheets (AREA)
• Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
• Portable Nailing Machines And Staplers (AREA)
• Sealing Battery Cases Or Jackets (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7837639

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (7)

Citations (2)

• 1997
  • 1997-08-01 DE DE19733230A patent/DE19733230A1/de not_active Withdrawn
  • 1997-12-09 WO PCT/EP1997/006864 patent/WO1999006647A1/de active IP Right Grant
  • 1997-12-09 EP EP97952903A patent/EP1000204B1/de not_active Expired - Lifetime
  • 1997-12-09 CZ CZ2000364A patent/CZ289467B6/cs not_active IP Right Cessation
  • 1997-12-09 PL PL97338189A patent/PL195778B1/pl not_active IP Right Cessation
  • 1997-12-09 AT AT97952903T patent/ATE235625T1/de not_active IP Right Cessation
  • 1997-12-09 DE DE59709653T patent/DE59709653D1/de not_active Expired - Lifetime

Patent Citations (2)

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