METHOD FOR LAYING OUT PROFILED SHEET

Abstract: The invention relates to a method of laying out profiled sheet (1) for building purposes, the profiled sheet beeing re­ inforced by means of supporting members (10) in an area of a beam (2) carrying the profiled sheet (1). The supporting mem­ bers (10) consist of a profiled band intended to be placed be­ tween the beam (2) and the profiled sheet (1). According to the invention a supporting member (10) is first placed on the beam (2) and a profiled sheet (1) is thereafter laid on top of the support­ ing member (10) after which another supporting member (10) is placed on the beam (2), said further supporting member (10) connecting to the previously laid-out profiled sheet (1) and/or the previously placed supporting member (10) in an upwardly guiding way, after which another profiled plate (1) is laid out on top of the further supporting member (10) etc. The invention also relates to support­ ing members (10) for carrying out the method.

Description: This invention relates to a method for laying out profiled sheet for building purposes, the profiled sheet being reinforced by means of supporting members in an area of a beam carrying the profiled sheet, the supporting members consisting of a profiled band intended to be placed between the beam and the profiled sheet. It is known from e.g. SE-B-7406269-6 to reinforce profiled sheet for building purposes, for example roofing sheet, by means of so-called supporting members in areas where the sheet rests on top of beams in order to prevent deformation of the profiled sheet in its contact area against the beam when the profiled sheet carries a load, for example a snow load. By these local reinforcing measures a thinner profiled plate can be used. Previously i.a. supporting members premounted on the beams before the profiled sheets are placed on the beams and also before said beams have been mounted to the framework of the building have been used. Said premounting means that deviations of measures of the supporting members give rise to great problems when the profiled sheets thereafter are laid out. Moreover, due to undesired movements between the beams the premounted supporting members have not been aligned with one another with the result that the profiled sheet could not be mounted owing to its stiffness and inability of adapting itself to said movements. The alternative of first mounting the beams to the framework of the building and thereafter all the supporting members onto the beams requires a balance act of the fitter and is therefore no attractive solution. It is suggested according to the present invention that the supporting members are successively placed on the beam so that profiled sheets already laid out or supporting members located beneath these serve as a mounting pattern. In order to enable the inventive successive mounting of the supporting members these are formed according to the invention so that they connect to a previously laid-out profiled sheet in an upwardly guiding way. Thus, it is the object of this invention to provide a method enabling an extraordinarily simple and economic mounting of the supporting members in connection with the profiled sheet being laid out. This object is achieved by means of the characteristic features defined in the claims. Illustrative examples of the invention will be described in the following by means of the enclosed drawings, wherein Fig. 1 is a perspective view as seen obliquely from above of a section of a beam and a profiled sheet placed thereon in a mounting phase, Fig. 2 corresponds to Fig. 1 but with another profiled sheet laid out. Fig. 1 shows a profiled sheet 1 placed on a beam 2 in a roof truss, a supporting member 3 being placed between the profiled sheet 1 and the beam 2, said supporting member having a profiling at least partly connecting to the form of the profiled sheet so that the latter is reinforced and its deformation resistance improved. The profiled sheet 1 has crowning sections 4, valley sections 5 and flank sections 6. Of course the profiled sheet 1 rests on more than one beam 2 but for reasons of simplification only one beam 2 is shown on the drawings. The sheet 1 is connected to the beam 2 in that the sheet is screwed onto the beam in at least certain of the valley sections 5 of the sheet and the screw is also made to pass the supporting member 3 so that this is also fixed to the beam 2. Of course other fastening elements than screws can be used when anchoring the sheet 1 to the beam 2. According to the invention an inventive supporting member 10 is now laid out, one end of which is so formed that it connects to the profiled sheet 1 in an upwardly guiding way. Said upwardly guiding connection can be embodied in different ways and Fig. 1 shows an example of this, the supporting member 10 being so formed that it connects to the upper surface of the profiled sheet 1 following this up to and over a crest 4. Thus, it is essential in this connection that the supporting member 10 is so embodied that it overlaps the sheet 1 in such a way that it is perfectly upwardly guided with respect to the beam 2. The next step will be to lay out another profiled sheet 1a, as shown in Fig. 2, and to anchor this and the supporting member 10 to the beam 2 in a way previously described. Another supporting member 10 is thereafter placed on the beam 2 and on top of this still another profiled sheet etc. The supporting member 10 has a profiling substantially connecting to the profiled sheet 1, resulting in that the supporting member will have crest sections 11, valley sections 12 and flank sections 13. According to the embodiment in Figs. 1 and 2 the supporting member 10 has an end section 14 connecting to the upper side of the profiled sheet 1 in an upwardly guiding way. The end section 14 preferably terminates with a turned-down edge section 15. Thus, in the embodiment according to Figs. 1 and 2 the supporting member 10 will be located beneath the sheet 1a and, at the same time, located with its end section 14 on top of the previously laid-out sheet 1. This is plain from Fig. 2. The supporting members are so embodied that they connect to a previously laid-out profiled sheet in an upwardly guiding way so that the inventive successive laying-out procedure is made possible. It should be pointed out that of course it may be suitable to connect the supporting member to the beam or to a previously laid-out sheet by means of a separate fastening element, for example a screw, so that the upwardly guided supporting member according to the invention maintains for certain its position until a sheet lying on top of this is positioned. It will be realized that the supporting members can be formed in a plurality of different ways within the scope of the inventive idea, and therefore the illustrative examples shown here must not be taken as limiting. Great possibilities of variation are also present in respect of the final anchorage of the profiled sheets and the supporting members relative to the beams. Thus, the invention is not restricted to what has been shown and described but amendments and modifications thereof are possible within the scope of the appended claims.

Claims: 1. A method of laying out profiled sheet (1) for building purposes, the profiled sheet (1) being reinforced by means of supporting members (3, 10) in an area of a beam (2) carrying the profiled sheet (1), the supporting members (3, 10) consisting of a profiled band intended to be placed between the beam (2) and the profiled sheet (1), characterized in that a supporting member (3) is first placed on the beam (2) and a profiled sheet (1) is thereafter laid on top of the supporting member (3), another supporting member (10) is thereafter placed on the beam (2), an end section (14) of the further supporting member (10) is connected to the previously laid-out profiled sheet (1) in an upwardly guiding way and that another profiled sheet (1a) is thereafter laid on top of the further supporting member (10). 2. A method as claimed in claim 1, characterized in that a profiling of the end section (14) of the further supporting member (10) connects to the upper side of the previously laid-out profiled sheet (1) in an upwardly guiding way.

Inventors: ERIKSSON, ANDERS, STROEMBERG, JAN, Strömberg, Jan
Applicants: PLANNJA AB
Application year: 1988
Main classification: E04D3
IPC codes: E04D3