WET ROOM FLOOR

Abstract: A device preferably for a wet room floor or a roof having a slope towards a drain, the floor or roof surface (12) is made up by at least two separate, adjacently positioned sheet elements (11). The sheet elements (11) are shaped as circular sector parts and are positioned around the drain (10), whereby the sheet elements (11) shows a lower support surface (16) abutting a flat base and an upper surface (12) which continuously and radially slope in a predetermined gradient towards the drain (10).

Description: Wet room floor The present invention concerns a device for a wet room floor or a roof with a slope towards a drain, a floor or roof surface is formed by at least two separate, adjacent positioned sheet elements. It is important to provide sufficient run off of water from, for example, a floor in a wet room, such as a shower, to the floor drain. If the inclination is too large, such a floor is uncomfortable to stand on and if the inclination is too small, the run off of the water will not function properly. When casting a floor or a roof which slopes towards a drain, irregularities easily arise which cause remaining puddles on the floor or the roof. A previous floor solving the problems of casted floors is made up in rectangular blocks with a flat slope down towards a special block provided with a drain. In addition to these flat blocks and the drain block there are corner blocks having two different flat slopes angled towards each other for positioning in four corners between the four flat slopes. These corner blocks may cause edges between the planes during laying which may make laying of a wet floor mat more difficult. Besides, these edges are uncomfortable to stand on and deposits will easily gather there. Furthermore, the known floor requires spacer elements, which render the laying of the floor complicated for the inexperienced floor layer, especially for larger floor surfaces. The object of the present invention is to provide a floor or a roof with sufficient run off of water which is easy to build. This object is fulfilled by a device according to the preamble characterised in that the sheet elements are formed as circular sector parts and are positioned around a floor or roof drain, the sheet elements showing a lower support surface abutting a flat base surface, and an upper surface which continuously and radially slope in a predetermined angle towards the floor or roof drain. Thanks to the invention a floor or a roof easily may be layed, which do not have to slope much to function properly since it continuously and radially always slope towards the drain without any edges or angles disturbing the water run off and the comfort . The floor or the roof is built from the drain and outwards in a circular manner where each circle comprises sheet elements having a specific shape of the circular sector part for each circle. The respective sheet element may be connected by means of groove and tongue or similar. The invention will now be described in more detail below by means of an exemplifying embodiment and with referal to the appended drawings, in which: Fig. 1 illustrates a floor or a roof according to the present invention. Fig. 2 illustrates the different designs of the sheet elements according to the circle to be made up by these elements. Fig. 3 illustrates a sheet element having groove and tongue and two detail views . Fig. 4 illustrates the slope of the floor or roof in a cross section view radially outwards from the drain. In fig. 1 a roof or a wet room floor according to the invention is show around a drain 10. A number of circles 1-7 made up by sheet elements 11 surrounds the drain 10. The first circle comprises in the shown case five elements, the second circle comprises nine sheet elements, the third fourteen and so on. As is shown in fig. 2 the sheet elements 11 have different shapes for the different circles 1-7 to form the different circles, whose diameters differs. In fig. 3 it is shown that the sheet element 11 has an upper surface 12 which is displaced in relation to the sheet element 11 so that a tongue 13 is formed at two of the side edges, see detail view A, and a corresponding groove 14 at the remaining two side edges of the sheet element 11, see detail view B. Each sheet element 11 has a substructure 15, which shows a support surface 16. The support surface is intended to abut a flat base, such as a sub floor. The substructure 15 increases in height radially from the edge 17 which is closest to the drain 10 in the mounted position to the edge 18 which is furthest away from the drain 10 so that the upper surface 12 of the sheet element 11 will slope radially inwards the drain 10, see fig. 4. The substructure 15 may be solid or comprise crossbars or other frame work and comprise any suitable material, for example, frigolit ® (cellular plastic) or wood fibre. The inner most circle 1 is wedge shaped, preferably with a radial gradient of about 0,7 degrees. In the preferred embodiment the inner sheet element increases from 0 to 7 mm in height over a length of 600 mm. The sheet elements of the following circle 2 begin at the same height as the sheet elements 11 in the circle 1 inside (in the preferred embodiment 7 mm) and they also have a radial gradient of about 0,7 degrees (whereby the edges furthest away of the sheet elements 11 ends at a height of 14 mm if also the sheet elements of circle 2 has a length of 600 mm) . The sheet elements of the following circles follow the same idea, whereby a floor is formed with a constant radial gradient in towards the drain 10. When mounting, a drawing over the inventive sheet element built floor or roof is preferably used, which is placed with the drain marking over the actual drain. The drawing is folded along the delimiting walls or another limitation if so desired or required. There upon the circles are mounted until a fold in the drawing is reached. The first sheet is mounted in line with the fold, if possible, and the circle is filled up until it reaches the next fold, where the last sheet might need an adaption, for example, be sawn along the fold. Thereafter the next circle is mounted and adapted, sawn, as the drawing, i.e. the delimitation of the surface or so. Each circle of sheets may easily be displaced around the circle so that a minimum number of sheets are required and the waste may be minimized. Finally, floor or a roof have been formed that suits the intended surface around an existing drain. On top of the floor according to the invention a wet room mat or a roof covering for example be layed by a skilled person. Of course, it is possible to leave out the step of the drawing and directly lay the sheets in place at the floor or roof.

Claims: CLAIMS 1. A device preferably for a wet room floor or a roof having a slope towards a drain, the floor or roof surface (12) is made up by at least two separate, adjacently positioned sheet elements (11) , characterised in that the sheet elements (11) are shaped as circular sector parts and are positioned around the drain (10) , whereby the sheet elements (11) shows a lower support surface (16) abutting a flat base and an upper surface (12) which continuously and radially slope in a predetermined gradient towards the drain (10) . 2. A device according to claim 1, wherein the sheet elements (11) are positioned around the drain (10) in circles (1- 7) outside each other. 3. A device according to claim 2, wherein the sheet elements (11) has a specific shape for each size of circle. 4. A device according to claim 1, 2 or 3, wherein respective sheet element (11) , at least at edge portions adjacent other edge portions, are provided with grooves (14) and tongues (13) .

Inventors: GEHLIN HANS, GEHLIN, HANS
Applicants: GEHLIN HANS, GEHLIN, HANS
Application year: 2001
Main classification: E04F15
IPC codes: E04D13, E04F15