DE2454666A1 - Seal for roof decking - a grooved element which slides into sides of decking modules - Google Patents

Abstract

An expansion joint for metal or plastic roof decking, partic. for large prefabricated roofing modules, has a sealing element, pref. of PVC or neoprene, which fulfils the necessary functions and which is simply inserted into the side of the modules. Permits full thermal expansion, is waterproof and fitted with draining groove.

Description

Expansion joint for metal or plastic roof coverings, in particular for large-area flashing elements.

The invention relates to a dilatation joint, as used in roof coverings with metal is required if the application and covering is used Metal tracks achieve a greater elongation. It is supposed to be affected by the temperature fluctuations caused expansions or contractions of the laid metal roofing - without Compensate the damage for the roofing.

Similar conditions in the temperature effects also prevail when using plastic as a covering material.

Here, too, with this material, if e.mq with large-area roofing elements It is used to allow expansion through the inclusion of expansion joints Be taken into consideration.

Also the use of prefabricated, large-area covering elements, as described, for example, in patent application P 21 60 6235-95 and in which the special design and the short distance between the transverse joints allow expansion in the direction of the eaves / First can be disregarded, or ample expansion is possible due to the formation of the transverse joint Due to the greater length of the roof sheeting, which is parallel to the eaves in the longitudinal direction, whether it is made of metal or plastic, the possibility of expansion must be taken into account.

In the known metal coverings of the known type, expansion joints were used arranged according to the shape shown in Fig. 6 of the accompanying drawing, the also served their purpose, but they are not suitable for newer plastic coverings usable.

And for prefabricated Sindeck elements, be it made of metal or plastic they are completely unsuitable for manufacturing and installation reasons.

The well-known dilatation joint according to Fig. 6 is also wage-intensive, such as the well-known metal cladding requires a high level of wage costs makes, plus the cost of material and the absolutely necessary substructure comes.

An element covering according to PA 21 60 623, which is also prefabricated, results in great wage cost savings in the dismantling and the standard production. But the necessary expansion joint must be present, only it is here the known design according to Fig. 6 is unsuitable.

The invention is now based on the ££ ufgahe, a dilatation joint to create that fully fulfills the required functions, i.e. it must 1.) or plastic sheets allow full freedom of movement; 2.) But it also has to the penetration of rain water safely and should 3.) by attaching a drainage channel, e.g. rainwater that has penetrated at the butt joint safely to the next lower lamination and thus harmless to the building, derive to the eaves.

It is now a further object of the invention that both the old = known Metal roofing, as well as the prefabricated Sindeck elements made of metal or Sealed plastic with one and the like embodiment of the dilatation joint and this can be pre-fabricated beforehand. To this end, one will use the above Function-fulfilling Súgen insert created. Taking great value in addition to the required Functions of a dilatation joint also include the installation of the same when covering on the Construction site poses no difficulties and the installation costs are practically the same are zero, is placed.

These objects werdeh now achieved according to the invention in that for every single element a dilation joint insert, as well as for every single metal track the old roofing, the machine prefabricated, in any Length, but with a fixed cut and to meet the needs of the different cover elements, their deck height probably one below the other, but not otherwise need to be the same height, be cut to length.

These stakes are laid, mostly from right to side takes place on the left, inserted into the element that has already been laid.

But it can also be a covering from left to right, since the use of the expansion joint allows this without further ado.

As already mentioned, the insert will be in the element that has already been laid laterally inserted and then the following, laterally adjoining element postponed to the half protruding insert, whereby care must be taken that that the lateral mouths of the elements do not touch, but a space in between of about 6 to 10 mm is observed. This gap becomes, through the use sealed to the inside and allows this an unhindered sliding of the element metal or plastic surfaces, even with extreme temperature fluctuations.

A drainage channel is installed in the longitudinal direction of the insert, which is closed at the upper end and remains open at the lower end, so the entering Precipitation water preventing it from entering upwards, but this water downwards on the roofing below, for very flat sloping roofs an additional seal on the left and right of the channel is an advantage. Also can the metal or plastic covering, namely the edge over the channel of the insert grips, be bent slightly downwards, causing a step over of the water on the side is safely avoided.

The insert can now be made from a wide variety of suitable materials exist and easily adapted to all occurring conditions through the choice of material will.

The advantages achieved by the invention are that initially Inexpensive production is achieved by the pre-production and the labor-intensive Creation at the installation point is no longer necessary. Use both for the well-known A cover, as well as for the cover with large-area elements equally is suitable and adapts to all circumstances through the choice of material. Just at the use of prefabricated large-area elements is this solution Dilatation joint the most suitable.

Several exemplary embodiments are shown in the drawing.

Fig. 1 shows a version of the insert made entirely of metal for large = flat, sandwich-type elements; Fig. 2 shows an embodiment Plastic (PVC, Plexiglas or the like.) For the same Sindeckelement as with Fig. 1; Fig. 3 shows an embodiment made of wood, rigid foam or the like., With a Sheath made of cellular rubber, moltoprene or the like; Fig. 4 shows an execution Neoprene. The drawn metal jacket is not in the vast majority of cases necessary; this joint in Fig. 4 is in one of the well-known metal roofs attached and clearly shows its possible application. 'It goes without saying that that this neoprene version can also be used for element roofing.

Fig.5 shows a longitudinal section through the insert, around the head fastener and to explain the discharge onto the underlying roofing. It is beneficial to make the incorporation of the elements in the bond, since the insert is then in the middle is above the element below and the water drains safely onto it.

Fig ,. 6 shows a dilatation joint of the well-known type around the To be able to recognize advantages of the new also purely graphically.

In Fig. N, the expansion insert (a) of the expansion joint (b) made of thin-walled metal and by working a channel (c which at the expansion joint (b) penetrating precipitation = water-safe leads to the next lower element, but also in connection with the loose overlap (d) of the insert base resilient effect is achieved, for example in the case of extremely strong expansions of the neighboring Elements (e) and (f).

In Fig. 2, the two cover elements (e) and (f) are with a dilation insert (a) consisting of an extruding = the Plastic, For example PVC, Plexiglas or the like. Which can be created in large tight spaces and is cut to length when laying the elements. At the head end, the Channel (c) closed.

Fig. 3 has an insert between the bridging elements ((@ 1) which can consist of wood, rigid foam or the like Seal and drain a jacket (g) made of metal, cellular rubber, moltoprene, Rubber or the like. He = holds.

Fig. 4 shows the all-metal roofing that has been used so far instead of the usual dilatation joint as shown in Fig. 6, an insert (a) the multiple described type for absorbing and bridging the expansion and sealing. As a special feature, the insert is made of neoprene and therefore does not require any further additional seal. The drawn metal frame (h) is in the not required in most cases. The use (a) is known at this = ser Kind of laid on a rafter (i), after applying the cardboard underlay (1) the metal covering (m) laid in the usual way. Left and right of the insert (a) the required formwork (k) has been laid.

Fig. 5 shows a longitudinal section in the area of the dilatation joint, (a) is the insert with the channel (c). The gutter is closed at the head end through the wall (s). The base of the channel (c), on the other hand, is open. The groove (c) directs the penetrated precipitation water in the sense of the arrows drawn on the element below. Since bandage coverage is beneficial, hits the water emerging from the gutter hits the center of the element.

Fig. 6 shows the known design of a dilatation joint.

Claims.

Claims (7)

Claims 1.) Expansion joint for ijetall and plastic roof coverings, in particular for large, prefabricated Sindeck elements, characterized by: that an insert (a), which the necessary functions of the known dilatation joint takes over anything by sliding it sideways into the elements during the roofing saves freh work. 2.) Dilatation joint according to claim 1, characterized in that the Insert (a) made from a wide variety of suitable materials, such as metal, Plastic or a combination of both is created. 3.) Dilatation joint according to claim 1 and 2, characterized -characterized, that the insert (a) has a centrally attached depression that runs from the head to the foot or gutter (c). 4o) dilation joint according to claim 1 to 3, characterized in that the insert (a) consists of a heat insulating material (a 1) and for water repellency a sheath (g) made of metal, cellular rubber, moltoprene or the like is obtained. 5.) Dilatation joint according to claim 1 and 3, characterized in that that the insert (a) made of PVC or the like. And created in the spray process can be. 6.) dilation joint according to claim 1 and 3, characterized = net, that the insert (a) consists of neoprene. 7.) dilation joint according to claim 1 to 6, characterized = net, that the inserts are resilient.