SUPPORTING AND SEALING SYSTEM FOR STRUCTURES , AND METHOD FOR MANUFACTURING SUCH A SYSTEM.
The present invention relates to a supporting and sealing system for building structures, as well as a method for mounting a such a system.
It is previously known to make wooden structures, such as wooden floors for patios or terraces and roofs or ceilings, by attaching parallel, supporting wooden planks to lateral beams or similar supporting structures. Traditionally here the planks are mounted at some spacing from one another in order to provide for venting.
Although such traditional solutions have several inherent drawbacks and deficiencies, they have been employed during a very long time without much change. Probably craftsmen have believed that this traditional method is good enough and cannot be improved significantly in any simple manner .
Drawbacks having occurred are, inter alia, that the wooden planks may be moistened through and thereby be quickly broken down by decaying or the like. Moreover, moisture has been collected between supporting beams and plank layers, so that these regions have rarely or never been completely dried up. Therefore, these regions have been much subjected to rot attacks. Interstices between boards or planks have been common, but often unfavorable in particular in the case of floor structures, because small objects as jewels, papers, coins or the like can be lost therein. In particular at locations where such a terrace floor has been lying closely down towards the ground, it has been difficult to find such objects. Precipitation has easily been able to pass through such a terrace structure, which in part has had for consequence that the region underneath will be subjected to alternating moisture and cannot be used as a dry place of storage, and in part the moisture will lead to spreading of vegetation underneath such terraces, this being difficult to clear away.
Attempts have been made to combine wood and metal so as to obtaining a stronger and lighter building product, cf . US
5.875.603 (Rudd) . This combined product was intended for beams that should withstand rot and insects.
This new development has also its limitations and drawbacks and as far as known has not obtained any wide- spread use. This probably is because the solution will be very expensive, since both metal elements and wooden elements must be made to suit into the design concerned, and as described it does not lend itself for floor constructions and supporting decks. The present invention has for a purpose to provide a new building structure having a surface of wood where all the above drawbacks are avoided.
This is obtained by providing a supporting sealing system according to the accompanying claims, and by a method for mounting the elements in such a system.
Among other things the invention relates to a supporting and sealing base plate for wooden floors, patios or terraces, ceiling or roof structures and similar building structures . The supporting plate is in particular intended for use in connection with patios or terraces and ceiling or roof structures. The supporting plates comprise several similar or related modules being assembled and these modules are of two types : - A sheet metal or plastic material element formed as an elongate profile having several sharp and right-angled corrugations in the longitudinal direction of the elements. The elements preferably have a large length and a width corresponding to the width of one or more floor boards. The profiles can be manufactured by bending of sheet material or by extruding. The sheet material being employed is too thin to be supporting in its planar condition, but is profiled in such a way that the profiles nevertheless will have supporting properties.
A joining and sealing list or moulding that may be somewhat elastic.
The elongate profiles can be manufactured by two methods being in the principle different. Each of the
profiles can be terminated along both sides with an upright side edge, and the sealing list is then laid over these upright side edges, so that two adjacent elements are covered and held tightly in place close to each other. Then the sealing list will seal both between the profiles and between the plates. In another variant of the invention the profiles are made so as to be able to overlap one another. In this case the sealing list will only have the task of sealing between the plates, since the profiles themselves provide for sealing from profile to profile.
The last of the components incorporated in the complete plate structure are the planks or wooden boards, which are not per se particularly designed and do not per se constitute any independent part of the invention. The boards can be of standard shape and standard dimensions. However, these boards do not have to be as thick as in other terraces, since they do not have to be a supporting part of the structure. Thus, the system can be marketed by having the profiles and the lists or mouldings sold in building material stores, whereas the wooden planks are available from local sawmills or the like. When there is here the question of wooden planks and wooden boards, this is not limited to plates of natural wood. The surface can as well consist of synthetic materials such as plastic or composite materials, possibly combined with wooden materials such as chips or sawdust, compressed with suitable binders and cured.
The whole structure is held together by having screws or bolts (indicated at 5 in the figure) inserted though the wooden planks, the profiles and down into an underfloor or supporting beams.
As important advantages with this design, it may be mentioned that there is obtained a tight floor, ceiling or roof or other building element, having low weight and high strength, as well as an attractive and comfortable surface. Besides, the floor as a whole will be thinner than a common terrace floor, which will simplify the adaption to new rules and specifications with respect to threshold level and the like. Moreover, the solution makes it possible to employ
thin standard dimensions of the planks, which thereby will be inexpensive and can be available everywhere. Further, the solution leads to better venting and draining than existing solutions, and can also improve safety against fires, in particular when metal sheet material is used for the profiles. Replacements and maintenance will also be simpler because the whole structure will remain supporting during repairs .
The invention reduces the need for wooden materials to about the half, makes it easier to utilize all portions of the timber and avoids the employment of wooden materials having specific profiles and dimensions.
If the terrace floor or the roof is to be impregnated, the required amount of proofing agent is reduced. Finally it is to be mentioned that the structure will be stable and safe even when the wood elements have been weakened, for example by local rotting, knots or the like.
Particular advantages and characteristics of a system according to the present invention, are as follows: - Use primarily as floor and roof elements, in particular, but not exclusively, for terraces and outdoor floors.
Comprises corrugated plastic material or metal sheet, relatively thin terrace boards as well as elastic sealing lists covering and joining two adjacent metal elements and/or sealing between adjacent terrace boards .
The profiles can be of corrosion resistant metal sheet (for example with a leather character) or plastic material.
The terrace boards can be common planks without grooves .
The sealing lists can be of rubber; rubber and plastic materials or rubber and metal. Plastic materials can also be used alone if the material is elastic.
The elastic portion of the sealing list is positioned between adjacent boards and can have a "barrel-shaped" or profiled cross section, possibly with a central cavity in order to provide for great resiliency.
The purpose among other things is to make the structure rigid, tight and thinner than common terrace floors; the latter point will simplify the adaption to new rules regarding threshold level and the like. - The solution makes it possible to employ common "thin" planks, being inexpensive and available everywhere.
These need not have supporting properties.
The above mentioned inexpensive planks will be carried by preferably metallic profiles which can be marketed though building material stores.
The solution leads to better venting than existing solutions .
Easy to maintain by replacing individual or several boards . - Better fire safety than traditional solutions.
The invention reduces the need for wooden materials
(approximately to the half) .
The invention makes it easier to utilize all portions of the timber. - The invention avoids the use of wooden materials having particular profiles and dimensions.
All types of plate materials can be used, for example manufactured from chips and/or sawdust with a suitable binder. - The invention reduces the amount of proofing agent needed for each square meter of floor area.
The structure will be stable and safe even upon weakening of wooden elements, for example upon local rotting. - The sealing list or moulding can be of several shapes.
The structural plate can be made with one or more overlapping (lays) or flanges.
In order to give a better understanding of the present invention, reference is made to the following detailed description of exemplary embodiments, referring to the accompanying drawings, where: Fig. 1 in cross sectional and perspective view shows the system according to the present invention, Fig. 2 in detail shows the region of a sealing list in
the embodiment according to fig. 1, Fig.3 shows another simpler design of the sealing list, Fig. 4 shows another embodiment of the profiles, suitable for use together with the simpler sealing list, and
Fig. 5 shows still a further embodiment of the sealing list or moulding. It is to be mentioned that the exemplary embodiments following, are not intended to be limiting to the invention, since the latter can be implemented in several ways. It is to be noted in particular that the system can be combined with well known details. Previously known fittings, drain systems such as gutters and the like can be incorporated in the system even though this has not been directly shown. Finally it is to be mentioned that the scale of the various drawings is not necessarily equal nor is the scale necessarily the same in different directions in the same drawing .
In fig. 1 the supporting base is shown as a structure 6 and this can consist of a continuous floor or of supporting beams arranged with a spacing and approximately in parallel to the paper plane of the drawing. Laterally on these supporting elements there are provided supporting profiles 1, for example as shown in the figure with rectangular corrugations delimiting venting ducts 10 running approximately transverse to the paper plane. The corrugations of these profiles 1 will make these rigid and to be supportive structures. The material in these profiles 1 can be corrosion protected metal sheet, for example with a leather character, or a robust plastic or composite material being extruded or cast into the profile shape shown or the like. The main point is that the base plates are rigid, corrosion resistant and can withstand the loads and stresses occurring, and this preferably alone, i.e. without any additional board layer.
The profiles 1 in the figure have a width B and are terminated in this embodiments with a side edge extending upwards as will be seen more clearly in figure 2, and will be explained more closely with reference to the latter
figure .
On top of profiles 1 there are mounted parallel plates 2 and these can together with profiles 1, be attached to the supporting beams or underfloor 6 by means of screws or bolts 5.
In order to hold plates 2 in a correct mutual position, and also in order to hold two adjacent profiles together, there is mounted a sealing list 3 which preferable can be formed of rubber or plastic material. The shape of this sealing list preferably is chosen to fulfil three functions. It is adapted to sealingly clamp or enclose two upright side edges of the profiles, it forms an abutment for the side edges of plates 2 and it seals between the wooden planks 2. This is better shown in fig. 2. In fig. 2 the joint area between two plates 2 is shown in more detaile. It is seen here that the sealing list 3 is so shaped as to fit around two upright side edges 4 on either side of the profiles 1. Besides the sealing list 3 is provided with an upward flange 14 fitting in between two parallel mounted plates 2. On this upright flange 14 there is also provided preferably at least one sealing projection 7. Since the sealing list 3 is made of an elastic material, these projections can be compressed and give a good sealing along the whole plate 2 and at both sides thereof, even though this may be smooth.
Because the sealing list 3 is provided with shoulder parts 11 at a corresponding level as the profiling of supporting profiles 1, plates 2 can be laid to be stable and sealed at the top of the assembly and ultimately be attached by means of for example through-going screws or bolts as indicated at 5 in the figure.
Thus, there has been obtained a stable structure with a number of venting ducts 10. It is to be noted in particular that the supporting plates 1 by themselves can constitute the supporting structure for a floor or roof construction, so that the wooden planks 2 primarily have the task of forming a visual surface having an esthetic appearance, providing for a suitable friction and being for example comfortable to walk on, whereas plates 2 do not per se have
to be supporting elements. This latter factor involves many advantages, for example much can be saved in wooden materials because standard dimensions of non-suppor ing boards can be employed without any extra working for obtaining grooves along the side edge or the like. Moreover, it will be simple to replace the individual boards in the assembly, if they were damaged by rotting or have unfavorable and weakening knot structures. Finally the fact that the wooden materials can be thin, will lead to big savings in proofing agents, which will be the more important the more expensive proofing agents are employed.
That this apparently is only an example of a type of design, should be apparent from the remaining figures. In fig. 3 there is shown an example of another embodiment of sealing list or moulding 3. Only a short length of list is shown. This comprises a flat, wide base 15 which will lie steady on a surface. Besides it comprises an upright, central member 16 that may have a somewhat barrel- shaped cross section. The sealing list preferably can be made of rubber or a resilient plastic material. If the material is not very resilient in itself, the central member 16 can be made more resilient than inherent in the material, by being provided with a through whole or split 17.
In fig. 4 it is shown how two such sealing lists 3 can be mounted on profiles 1. The plates intended to constitute the outer side of the finished structure, are then placed between two of these sealing lists without any clearance. The sealing list 3 can also be made still simpler as shown in fig. 3. The base 15 can for example be completely removed, so that the lists only will consist of a barrel- shaped possibly hollow component fitting in between the plates .
In fig. 4 it is indicated that the profiles 1 can be so shaped, as to overlap each other completely along one or more corrugation lines. Then it will no longer be required that the sealing list 3 shall provide for tightness between profiles 1 lying adjacent to one another, since these by themselves constitute a sealing structure. Thus, sealing list 3 will have the sole purpose of sealing between plates
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