FI20195096A1

FI20195096A1 - Modular room unit and wall unit

Info

Publication number: FI20195096A1
Application number: FI20195096A
Authority: FI
Inventors: Roope Määttä; Marjut Vahos; Jouni Niinikoski; Jyri Niemikorpi; Tyko Sillanpää; Sauli Kosonen
Original assignee: Fira Modules Oy
Priority date: 2019-02-11
Filing date: 2019-02-11
Publication date: 2020-08-12
Also published as: EP3924563A4; EP3924563A1; WO2020165497A1

Abstract

The invention relates to modular room unit (1) and to a wall unit (10). The modular room unit (1) comprises a base slab (2), wall units (10) comprising an inner wall surface (12) and a fixture (30) mounted to at least one of the wall units (10). The modular room unit (1) further comprises waterproofing (16) on the inner Wall surface (12), one or more first mounting elements (20, 22, 24) fixedly secured to at least one of the wall units (10) on the waterproofing (16), one or more second mounting elements (35) fixedly secured to the fixture (30). The one or more first mounting elements (20, 22, 24) and the one or more second mounting elements (35) are arranged to form together a releasable mounting connection between the at least one of the wall units (10, 10a, 10b, 10c, 10d) and the fixture (30).

Description

MODULAR ROOM UNIT AND WALL UNIT

FIELD OF THE INVENTION The present invention relates to a modular room unit and more particularly to a modular room unit according to preamble of claim 1. The present invention further relates to a wall unit and more particularly to a wall unit according to preamble of claim 11.

BACKGROUND OF THE INVENTION Modular room units are commonly known pre-manufactured modules which may be assembled and installed as separate ready-made units into buildings. The modular room unit may be for example bathroom modules or kitchen modules or the like room modules defining a room space. The modular room units comprise a base slab for providing a floor structure for the modular room unit. The modular room unit further comprises walls which are supported to the base slab. The walls define the room space or rom spaces of the modular room unit. The modular room — unit may also comprise top structure for providing a ceiling structure for the modular room unit. The modular room unit is separate unit or entity which may be installed into a building such that it defines a room space in the building. The walls of the modular room unit may be formed as wall units or wall elements which are pre-manufactured elements. These wall units are supported to — the base slab or on the base slab and secured to the base slab. The base slab may be concrete slab made for the modular room unit. The modular room unit may be supported to the building such that that modular room unit is supported to a floor structure of the building from the base slab. The floor structure of the building may D comprise opening for receiving the modular room unit and the modular room unit S 25 may be supported to the opening or to the edges of the opening of the floor S structure. — The modular room units are typically pre-manufactured wet rooms or spaces such as bathrooms, toilets or the like. These modular rooms comprise a & waterproofing in the floor structure and in the walls for preventing moisture O 30 entering the structures of the modular room unit. Conventionally, the 3 waterproofing is a separate waterproofing layer provided on the inner wall = surfaces and on the floor of the modular room unit. N One of the problems associated with the prior artis that when fixtures or the like fixedly installed elements, such as sink assemblies or cupboards or closets, are mounted and attached to the walls of the modular room unit, thewaterproofing is broken. Mounting the fixtures usually is one of the latest steps in manufacturing the modular room unit and this causes that the waterproofing is penetrated in uncontrolled manner with screws or the like securing members. Furthermore, when the fixtures are removed and replaced with new fixture during renovating the interior of the modular room unit, the waterproofing is broken again and penetrated in new locations. Accordingly, reliability and operation of the waterproofing of the modular room unit is compromised. This may lead to deterioration of the whole modular room unit. This especially severe as the modular room unit is manufactured as one entity, and water or moisture damages lead to deterioration of the whole modular room unit. Due to the single entity structure of the modular room unit, the moisture or water damages may be impossible to repair. Thus, the modular room unit should be replaced which is in most cases practically impossible without making a large opening to the building. — BRIEF DESCRIPTION OF THE INVENTION An object of the present invention is to provide a modular room unit and a wall unit such that the disadvantages of the prior art are solved or at least alleviated. The objects of the invention are achieved by a modular room unit which is characterized by what is stated in the independent claim 1. The objects of the — presentinvention are further achieved with a wall unit which is characterized by whatis stated in the independent claim 11.

The preferred embodiments of the invention are disclosed in the dependent claims.

The invention is based on the idea of providing a modular room unit > 25 comprising a base slab, wall units defining a room space of the modular room unit, N the wall units comprising an inner wall surface towards the room space of the S modular unit, and a fixture mounted to at least one of the wall units of the modular = room unit. The modular room unit further comprises waterproofing on the inner I wall surface of the wall units, one or more first mounting elements fixedly secured & 30 to atleast one of the wall units on the waterproofing at the side of the room space © of the modular room unit and one or more second mounting elements fixedly D secured to the fixture. The one or more first mounting elements and the one or o more second mounting elements are arranged to form together a releasable N mounting connection between the at least one of the wall units and the fixture on — the waterproofing at the side of the room space of the modular room unit. Thefixture is attached or secured to the first mounting elements and the one or more first mounting elements are secured to the wall of the modular room unit. Accordingly, the fixture may be removed and replaced with a new fixture without touching the waterproofing or making new penetrations to the waterproofing in of the modular room unit.

In one embodiment, the one or more first mounting elements may comprise one or more first connecting members and the one or more second mounting elements comprise one or more second connecting members, the one or more first connecting members and the one or more second connecting members being arranged to provide the releasable mounting connection between the one or more first mounting elements and the one or more second mounting elements. Thus, the fixture may be attached to the wall or wall unit of the modular room unit on the waterproofing at the side of the room space by utilizing the releasable connection. The releasable connection is provided between the one or more first mounting elements and one or more second mounting elements in the modular room unit such that removing and/or replacing and/or installing fixtures to the modular room unit or the walls of the modular room unit does not affect the modular room unit or the structure thereof.

In one embodiment, the one or more first mounting elements may be mounting rails, or mounting rails extending in vertical direction, or mounting rails extending in horizontal direction.

Alternatively, the mounting elements may be separate point-like mounting elements fixedly secured to at least one of the wall units.

In one embodiment, the one or more first mounting elements may be fixedly secured to the at least one of the wall units with one or more securing = members penetrating the waterproofing of the at least one of the wall units.

N [n an alternative embodiment, the one or more first mounting elements S may be fixedly secured to the at least one of the wall units with one or more rr securing members penetrating the waterproofing of the at least one of the wall E 30 — units, and a sealing member may be provided in connection with the one or more > securing members and arranged to seal to one or more securing members to the at S least one of the wall units or to the waterproofing of the at least one of the wall O units.

> The one or more securing members may be screws, bolts or the like mechanical fasteners, or any known fasteners.

The sealing member may any known kind of sealing member such assealing ring, sealing washer, sealing plate, sealing tape or any known sealing member. The sealing member may be any known and suitable sealing material, such as rubber, silicone or the like. The sealing element may provider sealing of the one or more mounting elements to the wall unit or to the waterproofing of the wall unit In a further alternative embodiment, the one or more first mounting elements may be fixedly secured to the at least one of the wall units by gluing. In one embodiment, an adhesive layer may be provided between the one or more mounting elements and the wall unit. The adhesive layer may be provided with any known kind of adhesive material. When glue or adhesive material is used instead of mechanical fasteners, there is no need to penetrate the waterproofing of the wall unit. Accordingly, there is no need to make any holes to the waterproofing.

The wall unit may comprise a wall body and the waterproofing may be a separate waterproofing layer provided on the wall body at the inner surface of — the wall unit.

In an alternative embodiment, the wall unit may comprise a wall body and a separate surface layer provided on the wall body at the inner surface of the wall unit. The waterproofing may be a separate waterproofing layer provided between the wall body and the separate surface layer.

In a further alternative embodiment, the wall unit may comprise a wall body having a first surface layer at the inner surface of the wall unit and the first surface layer may form the waterproofing.

The one or more first mounting elements may be fixedly secured on the waterproofing at the inner surface of the atleast one of the wall units. Alternatively, the one or more first mounting elements may be fixedly secured on the separate = surface layer at the inner surface of the at least one of the wall units. Accordingly, N the one or more mounting elements may be attached directly on the waterproofing S of the wall unit or on a separate surface layer provided on the water proofing at the rr side of the room space of the modular room unit.

E 30 In one embodiment, the wall unit may be formed from waterproof sheet > material. Alternatively, the wall unit may be formed from waterproof sheet S material, and the waterproof sheet material may form the waterproofing at the O inner surface of the wall unit. Forming the wall unit from the waterproof sheet > material means that the at least the inner surface layer of the wall unit is formed — from the waterproof sheet material. In some embodiments, forming the wall unit from the waterproof sheet material means that the whole wall unit is formed fromthe waterproof sheet material, except some possible supports, stiffeners or the additional structural members. In another embodiment, the wall unit may comprise the wall body formed from waterproof sheet material, or the wall unit may comprise the wall 5 body formed from waterproof sheet material, and the wall body may have an inner surface layer formed from the waterproof sheet material, the inner surface layer forming the waterproofing. Thus, there is no need for additional or separate waterproofing on the first surface of the wall unit. In a further embodiment, the wall unit may comprise the wall body formed from waterproof sheet material, the wall body having an inner surface layer formed form the waterproof sheet material and an outer surface layer. The wall body comprises a wall cavity between the inner surface layer and the outer surface layer and the inner surface layer may form the waterproofing. The wall body may provide an enclosure-like or casing-like structure.

The waterproof sheet material of the wall unit may be meat thin sheet, composite sheet material, reinforced plastic material, polymer based sheet material or the like material capable of providing a structural part of the wall unit.

Waterproof in the context of this application means that the water or moisture cannot penetrate the material.

In one embodiment, the one or more first mounting elements may be fixedly secured to the waterproof sheet material of the wall unit, or the one or more first mounting elements may be fixedly secured to the inner surface layer formed from the waterproof sheet material.

In another embodiment, the one or more first mounting elements may — be fixedly secured to the inner surface layer formed from the waterproof sheet = material with the one or more securing members penetrating the inner surface N layer.

S The inner surface layer may be provided with pre-made holes or rr openings for receiving the one or more securing members. These pre-made E 30 openings may provide enhanced waterproofing in the locations where the securing > members penetrate the inner surface layer. Further, the pre-made holes may be S provided with sealing for sealing the securing members to the wall unit or the inner O surface layer.

> In another embodiment, the one or more first mounting elements may — be fixedly secured to the wall body or to the inner wall surface of the wall unit formed from waterproof sheet material by gluing. Thus, an adhesive layer may beprovided between the one or more mounting elements and the wall body or the inner surface layer formed from waterproof sheet material. The adhesive layer may be provided with any known kind of adhesive material. When glue or adhesive material is used instead of mechanical fasteners, there is no need to penetrate or provide holes to the waterproofing of the wall unit. Accordingly, there is no need to make any holes to the waterproofing.

In one embodiment, the wall unit may comprise one or more support members provided the wall body, and the one or more first mounting elements may be fixedly secured to at least one of the support members. Alternatively, the wall unit may comprise one or more support members provided to the wall body, and the one or more first mounting elements may be fixedly secured to at least one of the support members with the one or more securing members. The support members may be any kind of support members, for example support beams or bars. The support members may carry the weight of the fixture and the support — members may provide attachment and support points for the mounting elements. The support members may be provided under the surface layer of the wall unit, between the wall body of the wall unit and the surface layer, or inside the wall body. Thus, the support members may be provided under waterproofing, or in the side inner side or wall body side of the waterproofing. In some embodiments, the support members may also be provided on the surface layer and the waterproofing at the side of the room space.

The support members may be made of wood, metal, steel, composite or any other suitable material with structural strength.

In one embodiment, the wall unit may comprise one or more support members provided to the inner surface layer of the wall body formed from the = waterproof sheet material, and the one or more first mounting elements are fixedly N secured to at least one of the support members. In this case, the support members S may be provided or attached to the inner surface layer on the side of the wall unit, rr meaning towards the wall unit or opposite side of the room space. E 30 In another embodiment, the wall unit may comprise one or more > support members provided to the inner surface layer of the wall body formed from S the waterproof sheet material, and the one or more first mounting elements are O fixedly secured to at least one of the support members with one or more securing > members. The support members may penetrate the inner surface layer.

In one embodiment, the wall unit may comprise one or more support members provided between the inner surface layer and the outer surface layer ofthe wall body, and the one or more first mounting elements may be fixedly secured to at least one of the support members. The surface layers may be provided from waterproof sheet material or alternatively some other material.

In another embodiment, the wall unit may comprise one or more support members provided between the inner surface layer and the outer surface layer of the wall body, and the one or more first mounting elements may be fixedly secured to at least one of the support members with the one or more securing members. The wall unit may be formed from waterproof sheet material as a wall cassette. Alternatively, the inner surface layer of the wall unit may be formed from waterproof sheet material.

The objects to the present invention are further achieved with a wall unit for a modular room unit having a room space. The wall unit comprises an inner wall surface towards the room space of the modular room unit and a waterproofing on the inner wall surface. In the wall unit, the inner wall surface is formed from waterproof sheet material, and the waterproof sheet material of the inner wall surface is arranged to provide the waterproofing of the wall unit. The wall unit comprises one or more first mounting elements fixedly secured to the inner surface of the wall unit for mounting a fixture to the wall unit. Therefore, the mounting elements are fixedly secured on the inner wall surface made of waterproof sheet material providing permanent mounting assembly for fixtures in the wall unit.

The wall unit may also comprise an outer wall surface layer, but the outer surface layer may also be omitted. When the outer surface layer is omitted, the wall unit comprises edge flanges provided to the edges of the inner wall surface layer. Thus, the back side or the second surface of the wall unit may be open. The outer surface layer of the wall unit may be provided from any material, or any sheet = material.

N In one embodiment, the wall unit may be formed from waterproof sheet S material, or alternatively, the wall unit may comprise the inner surface layer rr formed from the waterproof sheet material and an outer surface layer formed from E 30 — other sheet material. In a special case, also the outer surface layer of the wall unit > may be formed the waterproof sheet material.

S In another embodiment, the wall unit may comprise the inner surface O layer formed from the waterproof sheet material, an outer surface layer, and a wall > cavity between the inner surface layer and the outer surface layer.

In a further embodiment, the wall unit comprises the inner surface layer formed from the waterproof sheet material, an outer surface layer, and a wallcavity between the inner surface layer and the outer surface layer. The wall unit may provide a casing-like or enclosure-like structure.

In one embodiment, the wall unit may comprise one or more support members provided to the inner surface layer, and the one or more first mounting elements may be fixedly secured to at least one of the support members.

In another embodiment, the wall unit may comprise one or more support members provided between the inner surface layer and the outer surface layer of the wall unit, and the one or more first mounting elements may be fixedly secured to at least one of the support members.

In a further embodiment, the wall unit may comprise one or more support members provided between the inner surface layer and the outer surface layer of the wall unit and attached to the inner surface layer and the outer surface layer of the wall unit, and the one or more first mounting elements may be fixedly secured to at least one of the support members.

The support members may provide structural support and attachment points for the mounting elements such that the weight of the fixture may be carried efficiently by the wall unit.

Alternatively, the mounting elements may be point-like or separate mounting elements and there may be two or more point-like mounting elements successively on vertical and/or horizontal direction in the wall unit or in the inner wall surface of the wall unit.

In one embodiment, the one or more first mounting elements may be = fixedly secured to the wall units with one or more securing members penetrating N the first surface layer of the wall unit. Alternatively, the one or more first mounting S elements may be fixedly secured to the wall units with one or more securing rr members arranged to penetrate the first surface layer of the wall unit and to attach E 30 to atleast one or the one or more support members. > The first surface layer may be provided with pre-made holes or S openings for receiving the one or more securing members. These pre-made O openings may provide enhanced waterproofing in the locations where the securing o members penetrate the first surface layer. Further, the pre-made holes may be provided with sealing for sealing the securing members to the wall unit or the first surface layer.

In another embodiment, the one or more first mounting elements may be fixedly secured to the wall cassette or to the first surface layer of the wall unit formed from metal thin sheet by gluing. Thus, an adhesive layer may be provided between the one or more mounting elements and the wall cassette or the first surface layer formed from metal thin sheet. The adhesive layer may be provided with any known kind of adhesive material. When glue or adhesive material is used instead of mechanical fasteners, there is no need to penetrate or provide holes to the waterproofing of the wall unit. Accordingly, there is no need to make any holes to the waterproofing.

The one or more first mounting elements may comprise one or more first connecting members arranged to provide a releasable mounting connection for connecting a fixture in releasable manner to the wall unit. The releasable mounting connection may be any known releasable connection such as slot or groove connection, mortise and tenon connection, hook connection, or the like releasable mechanical connection.

In one embodiment, the wall unit may comprise a top layer provided on the first surface layer, and that the one or more first mounting elements may be arranged on the top layer. In this embodiment, the first inner surface layer does not form the outer surface of the wall unit, but the top layer form the inner surface of the wall or wall unit. The top layer may be made of any known construction or interior material.

An advantage of the invention is that modular room unit or the wall unit of the present invention enables mounting, removing and replacing fixtures to the modular room unit without affecting the waterproofing of the modular room unit or the wall unit. Accordingly, there is no need to penetrate or touch the = waterproofing after installing the mounting elements fixedly to the modular room N unit or the wall unit. Thus, the mounting elements may be pre-installed in S controllable manner in the manufacturing facility of the modular room unit or the rr wall unit. When fixtures are mounted, removed or replaced while the E 30 waterproofing remains untouched and thus the water and moisture sealing in the > modular room unit or the wall element is not risked or subjected to breakage. S Accordingly, the modular room unit or the wall unit of the modular room unit and O the structures thereof may be effectively protected even after mounting the new or > replacing the fixtures. Therefore, the lifetime of the modular room unit may be prolonged or and the modular room unit may be refurnished or re-equipped without subjecting the modular room unit to or the waterproofing thereof todamages.

BRIEF DESCRIPTION OF THE DRAWINGS The invention is described in detail by means of specific embodiments with reference to the enclosed drawings, in which Figure 1 shows a schematic plan view of a modular room unit; Figure 2 and 3 show schematic views of a modular room unit according to the present invention; Figure 4a, 4b, 5a, 5b, 6a, 6b show schematic views of a wall unit according to the present invention; Figure 7 shows schematic view of a wall unit according to the present invention; Figures 8 and 9 show another embodiment of a wall unit according to the present invention; Figures 10 and 11 show still another embodiment of a wall unit according to the present invention; Figures 12a, 12b and 12c shows schematic view of a fixture; Figure 13 shows a schematic view of a wall unit for a modular room unit according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION Figure 1 shows as schematic plan view of a modular room unit 1. The modular room unit 1 comprises a floor structure having a base slab 2 or floor slab. The base slab is a separate slab for the modular room unit 1. The modular room unit 1 further comprises walls 10a, 10b, 10c, 10d. In figure 1 the modular room unit D 1 comprises a first wall 10a, a second wall 10b, a third wall 10c and a fourth wall S 25 10d. The walls 10a, 10b, 10c, 10d may be like inner partitioning walls of a building N or the like. The walls 10a, 10b, 10c, 10d have first inner surface 12 and second outer - surface. The first inner surfaces 12 of the walls 10a, 10b, 10c, 10d define a room > space inside the modular room unit 1. One or more of the outer second surfaces 14 & of the walls 10a, 10b, 10c, 10d may provide wall surface for other or adjacent room O 30 of the building. The walls 10a, 10b, 10c, 10d of the modular room unit 1 are 3 supported to the base slab 2, and preferably on the base slab 2 or on the upper = surface of the base slab. Therefore, the bottom edges of the walls 10a, 10b, 10c, 10d N are placed against and/or towards base slab 2 or the upper surface of the base slab

2. The base slab 2 may be concrete slab or similar structural slab or floorstructure. The base slab 2 may be supported to the structures of the building or to a floor structure of the building. Conventionally, the floor structure of the building comprises opening for the modular room unit 1. The modular room unit 1 may be arranged to the opening of the floor structure such that the upper surface of the — base slab 2 is substantially at same level as the upper surface of the floor structure.

The base slab 2 of the modular room unit 1 may be supported to the edges of the opening in the floor structure of the building.

At least one of the walls 10a, 10b, 10c, 10d may be provided with a door opening 4. The door opening 4 may be further provided with a door 6, as shown in — figure 1.

The modular room unit 1 isfurther provided with fixtures 30a, 30b. The fixtures may be closets 30a, sink, washstand 30b, toilet seat, shower screen or the like fixtures or the like fixedly or permanently installed elements. The fixtures 30a, 30b are mounted to the wall 10c. However, fixtures 30a, 30b of the modular room unit I may be mounted to one or more of the walls 10a, 10b, 10c, 10d or any of the walls 10a, 10b, 10c, 10d. The fixtures 30a, 30b are mounted on the inner surface 12 of the wall 10c. In the context of this application the fixture may also be a top surface layer of the wall unit 10. Accordingly, the top surface layer may be provided with the one or more second mounting elements on the second side and the first side forms the visible outer top surface of the wall of the modular room unit. The top surface layer may be any board material, panel material, tile material, decorative or interior top surface layer made of wood, ceramic, composite material, polymer based material or the like surface material.

Figure 2 shows one embodiment according to the present invention.

Thefigure2 shows the base slab 2, wall 10 and ceiling structure 8 of the modular = room unit 1. The wall 10 has the first inner surface 12 towards the interior or room N space of the modular room unit 1. The modular room unit 1 comprises first S mounting elements 20 provided to the wall 10 or on the inner surface 12 of the rr wall 10. There may be one or more first mounting elements 20 provided on the E 30 — wall 10. The mounting elements are fixedly secured to the wall unit 10, or on the > inner first surface 12 of the wall 10. The first mounting elements 20 are fixedly S secured to the wall 10 with one or more securing members 21. The securing O members 21 may be screws, bolts, nails, or some other mechanical fasteners > forming a fixed attachment to the wall 10.

In some embodiments, the fixedly securing may mean that the first mounting elements 20 are secured to the wall 10 such that tools are needed forremoving the first mounting elements 20. Alternatively or additionally, the fixedly securing may mean that securing members 21 are such that tools are needed for attachment or utilizing them. Further alternatively or additionally, the fixedly securing may mean that the securing members penetrate into the wall 10 through the first inner surface 12 of the wall 10.

Alternatively, the first mounting elements 20 may be fixedly secured to the at least one of the wall units by gluing by utilizing adhesive material. In one embodiment, an adhesive layer may be provided between the one or more first mounting elements 20 and the wall 10 or the inner first surface 12 of the wall 10.

In this embodiment, the fixedly securing means that the first mounting elements 20 need to be removed from the wall 10 or the first inner surface 12 by breaking the connection between the first mounting elements 20 and the wall 10, or breaking some structures of the wall 10 or the first mounting elements 20. Thus, the securing members 21 may be omitted.

In the embodiment of figure 2, the first mounting elements 20 are mounting rails. The mounting rails 20 extend in horizontal direction. There may be one horizontal mounting rail 20, or two or more mounting rails arranged successively vertical direction, as in figure 2, and/or in horizontal direction.

Figure 3 shows a side view of the embodiment of figure 2. Figure 3 shows the first mounting elements or first mounting rails 20 fixedly secured to the wall 10 or to the inner first surface 12 of the wall 10. The first mounting rails 20 extend in horizontal direction and are arranged successively in vertical direction in relation to each other, and/or at distance from each other in vertical direction.

Figures 4a, 4b, 5a and 5b show different embodiments of the wall 10 and securing the first mounting elements 20 to the wall 10. The wall 10 may be pre- = made wall unit 10 which may be arranged or installed to the modular room unit 1 N or on the base slab 2.

S In the present application waterproofing may be separate rr waterproofing or waterproofing layer or integral part of the wall unit 10 or wall. E 30 — The waterproofing may be made of any known waterproofing material or product. > The waterproofing provides water and moisture barrier. The waterproofing is S provided at least on the inner first surface 12 of the wall units 10 or walls of the O modularroom unit 1. However, the waterproofing may also be provided to the base > slab 2 or the floor structure of the modular room unit 1 and/or to the ceiling structure 8 of the modular room unit 1.

[n the embodiment of figure 4a the wall or wall unit 10 comprises a wallbody with inner first surface 12 and the second outer surface 14. The wall unit 10 further comprises a waterproofing 16 or waterproofing layer 16 provided on the first inner surface 12 or on the wall body at the inner surface 12 of the wall unit 10. The waterproofing 16 is a separate waterproofing layer provided on the first inner surface 12. The first mounting elements 20 are fixedly secured on the waterproofing 16 at the inner surface 12 of the wall unit 10. Accordingly, the first mounting elements 20 are provided and fixedly secured on the first inner surface 12 at the side of the room space or interior of the modular room unit 1 and on the waterproofing 16. Figure 4b shows another embodiment in which the wall or wall unit 10 comprises a wall body with inner first surface 12 and the second outer surface 14. The wall unit 10 further comprises a waterproofing 16 or waterproofing layer 16 provided on the first inner surface 12 or on the wall body at the inner surface 12 of the wall unit 10. The waterproofing 16 is a separate waterproofing layer provided on the first inner surface 12. The wall unit 10 further comprise a separate surface layer or top layer 18 provided on the waterproofing 16. Accordingly, the waterproofing 16 is provided between the inner first surface 12 and the separate surface layer 18. Accordingly, the first mounting elements 20 are provided and fixedly secured on the firstinner surface 12 at the side of the room space or interior ofthe modular room unit 1 and on the waterproofing 16, as well as on the separate surface layer 18.

The separate surface layer 18 may be material layer provided on the waterproofing 16, such as tile layer, ceramic tile layer, panel layer, board layer or the like. The separate surface layer 18 may form outer surface of the wall 10 or it may be middle layer in the wall. = Figure 5a shows an alternative embodiment, in which the wall unit 10 N comprises a wall body having a first surface layer 13 at the inner surface 12 of the S wall unit 10. The first surface layer 13 is arranged to form the waterproofing 16. rr Accordingly, there is no separate waterproofing layer. Thus, the first surface layer E 30 13isformed from waterproof sheet material or from waterproof material. > In one embodiment, the inner first surface layer 13 may be formed from S metal thin sheet and the metal thin sheet may form the waterproofing 16. O In another embodiment, the wall unit 10 may be formed from the metal > thin sheet. The metal thin sheet may form the waterproofing 16 at the inner surface 120fthewallunit 10.

Further, the wall unit 10 may comprise the wall body formed frommetal thin sheet.

The wall body comprises the inner surface layer 13 formed from the metal thin sheet and an outer surface layer 11. The inner surface layer 13 forms the waterproofing, as shown in figure 5a.

In one particular embodiment, the wall unit 10 comprises the wall body formed from metal thin sheet into a wall cassette in which the metal thin sheet provides an inner surface layer 13. The wall cassette comprises a wall cavity 15 between the inner surface layer 13 and the outer surface layer 11 and the inner surface layer 13 forms the waterproofing 16. The wall cassette may be formed by bending and cutting metal thin sheet into a cassette.

The wall cassette may be an — enclosure-like, box-like or casing-like structure in which the thins sheet forms the first surface layer 13 and also side and end edges wall unit 10 such that the wall cavity 15 is formed inside the wall unit 10. It should be noted that first inner surface layer 13, or in a special case the first inner surface layer 13 and the second outer surface layer 11, may be made or formed from waterproof sheet material.

The waterproof sheet material may be metal thin sheet, composite material, polymer based sheet material or reinforced plastic material.

Accordingly, in all the embodiments the metal thin sheet may also be replaced by some other waterproof sheet material.

It should be noted, that in all the embodiments when the wall unit 10 or — the wall body is formed from waterproof sheet material, such as metal thin sheet, the outer surface layer 11 may be omitted or it may be provided or formed from any known construction material.

In a special embodiment, the wall unit 10 or the wall body may also be formed from waterproof sheet material such that both the inner surface layer 13 and the outer surface layer 11 are formed from the waterproof sheet material. = Metal thin sheet is preferable material as it provides necessary N structural strength and stiffness for the wall unit.

Furthermore, the metal thin sheet S may be formed and shaped easily without compromising the waterproof rr characteristics.

Furthermore, metal thin sheet may retain the waterproof E 30 characteristics during even under heavy use. > As shown in figure 5a, the first mounting elements 20 are fixedly S secured to the metal thin sheet of the wall unit, and more particularly to the inner O surface layer 13 formed from the metal thin sheet.

The metal thin sheet providing > the inner surface layer 13 also forms the waterproofing 16. The first mounting elements 20 may also be fixedly secured to the inner surface layer 13 formed from the metal thin sheet with the one or more securingmembers 23 penetrating the inner surface layer 13 and thus the waterproofing 16.

It should be noted, that the wall unit 10 formed from metal thin sheet may also comprise the top layer 18 or the separate surface layer provided on the first surface layer 13 at the side of the room space of the modular room unit 1. The — first mounting elements 20 are arranged on the top layer 18, and thus also on the inner surface layer 13 and the waterproofing 16.

Figure 5b is a side view of the wall unit 10. The wall unit 10 may comprise one or more support members 17 provided the wall body. Therefore, the wall unit 10 may comprise the inner surface layer 13 and the outer surface layer 11 and the support members 17 may be arranged between the inner surface layer 13 and the outer surface layer 11. The wall unit 10 may be any kind of wall unit, and preferably a wall unit or wall cassette made from the metal thin sheet. The support members 17 may be provided inside the wall cavity 15.

The support members 17 may be any structural members such as support column, support beams or the like extending in vertical and/or horizontal direction and/or in an angle to the horizontal or vertical direction. The support members 17 may provide structural strength and rigidity to the wall unit 10.

The metal thin sheet in all the embodiment, may be made of steel, aluminium or some other suitable metal. The thickness of the metal thin sheet is — between 0,1 — 2,5 mm. The metal thin sheet may be galvanized steel sheet, or hot galvanized steel sheet. Furthermore, the metal thin sheet may be coated with epoxy paint, polyester paint or laminated on the at least first surface 12, or on all surfaces of the metal thin sheet or the wall unit 10.

As shown in figure 5b, the first mounting elements 20 are fixedly — secured to the support members 17. Accordingly, the first mounting elements 20 = are fixedly secured on the inner surface layer 13, or on the waterproofing 16 and N further to the support members 17 inside the wall unit 10 or in the wall cavity 15. S This may provide necessary structural support for the fixtures 30a, 30b when they rr are installed to the wall unit 10. Thus, the first mounting elements 20 are fixedly E 30 secured to at least one of the support members 17 provided between the inner > surface layer 13 and the outer surface layer 11 of the wall body formed from the S metal thin sheet.

O It should be noted that in some embodiment the one or more first > mounting elements 20, 22, 24, or the one or more mounting rails forming the first mounting elements 20, 22, 24 may form the support members for the wall unit 10 for providing structural strength and/or stiffness to the wall unit 10.

Figures 6a and 6b show another embodiment of the wall unit 10. The wall unit 10 comprises the inner surface layer 13 for forming the inner surface 12 of the wall unit 10. The inner surface layer 13 is made or formed from waterproof sheet material. In these embodiments, the wall unit 10 does not comprise the second outer surface layer, but the wall unit is open on the back side which is away from the room space. The inner surface layer 13 is provided with edge or end flanges 19. The end flanges 19 form the edge surfaces of the wall unit 10 and the inner surface layer 13. The end flanges are preferably formed from the same material with the inner surface layer 13 and by forming the inner surface layer 13. The end flanges 19 preferably form a L-shaped or C-shaped end or edge with the inner surface layer 13 for the wall unit 10. This provides structural rigidity to the wall unit 10 and enables the wall unit 10 to be supported on the base slab 2 such that the end flange 19 in the lower edge of the wall unit 10 is against the base slab

2. In these embodiments, the wall unit 10 comprises a wall cavity 27 which is open opposite the inner surface layer 13, as shown in figures 6a and 6b. Thus, as separate second outer surface layer or plate (not shown) may be attached or installed to the wall unit 10 opposite the inner surface layer 10. This way the wall cavity 27 may be closed. The separate second outer surface layer is attached tothe end flanges 19. The separate second outer surface layer may be made of any material, such a waterproof sheet material or some other material such as wood o gypsum. As shown in figure 6a, the first mounting elements 20 are fixedly secured to the waterproof sheet material layer 13 of the wall unit, and more particularly to the inner surface layer 13 formed from the waterproof sheet = material. The waterproof sheet material. providing the inner surface layer 13 also N forms the waterproofing 16. S The first mounting elements 20 may also be fixedly secured to the inner rr surface layer 13 formed from the waterproof sheet material with the one or more E 30 securing members 23 penetrating the inner surface layer 13 and thus the > waterproofing 16. S It should be noted, that the wall unit 10 formed from waterproof sheet O material may also comprise the top layer 18 or the separate surface layer provided > on the first surface layer 13 at the side of the room space of the modular room unit

1. The first mounting elements 20 are arranged on the top layer 18, and thus also on the inner surface layer 13 and the waterproofing 16.

Further, the waterproof sheet material of the first inner surface layer 13 also forms the end flanges 19 and the wall cavity 27 together with the end flanges 19. Thus, the so formed wall unit 10 or wall cassette is open on the back side or on the outer surface.

Figure 6b is a side view of the wall unit 10. The wall unit 10 may comprise one or more support members 17 provided the wall body.

Therefore, the wall unit 10 may comprise the inner surface layer 13 and the support members 17 may be arranged or attached the inner surface layer 13 or on the outer surface of the inner surface layer 13, opposite the inner surface 12. The wall unit 10 may be — any kind of wall unit, and preferably a wall unit or wall cassette made from the metal thin sheet or some other waterproof sheet material.

The support members 17 may be provided inside the wall cavity 27 defined by the inner surface layer 13 and the end flanges 19. The support members 17 may be any structural members such as support columns, support beams or the like extending in vertical and/or horizontal direction and/or in an angle to the horizontal or vertical direction.

The support members 17 may provide structural strength and rigidity to the wall unit 10. As shown in figure 6b, the first mounting elements 20 are fixedly secured to the support members 17. Accordingly, the first mounting elements 20 — are fixedly secured on the inner surface layer 13, or on the waterproofing 16 and further to the support members 17 inside the wall unit 10 or in the wall cavity 27. This may provide necessary structural support for the fixtures 30a, 30b when they are installed to the wall unit 10. Thus, the first mounting elements 20 are fixedly secured to at least one of the support members 17 provided between the inner surface layer 13 and the outer surface layer 11 or provided to the inner surface = layer 13. N Figure 7 shows an embodiment in which the wall unit 10 comprises the S support members 17 provided to the wall body, or between the inner surface layer rr 13 and the outer surface layer 11 of the wall body.

The wall unit 10 or the body of E 30 — the wall unit 10 may be formed form the metal thin sheet.

The first mounting > elements 20 are fixedly secured to atleast one of the support members 17 with the 2 one or more securing members 23 and through the first surface layer 13 and the O thus through the waterproofing 16. > The outer surface layer 11 may be omitted and the wall unit may be a wall unit according to figures 6a and 6b.

Alternatively, the outer surface 11 may be formed from any known sheet or construction material and attached to the wallbody made of waterproof sheet material.

The support members 17 may be provided to the inner surface layer 13, or, between the inner surface layer 13 and the outer surface layer 11. Thus, the support members 17 may be provided between the inner surface layer 13 and the outer surface layer 11 of the wall unit 10 and attached to the inner surface layer 13 and the outer surface layer 11 of the wall unit 1. The first mounting elements 20 are further fixedly secured to the support members 17. Alternatively, the support members 17 may be provided or attached to the inner surface layer 13 of the wall unit 1.

The wall unit may comprise the support members 17 provided between the inner surface layer 13 of the wall body formed from the metal thin sheet. The first mounting elements 20 are fixedly secured to at least one of the support members 17 with the one or more securing members 23.

As shown in figure 7, the securing members 23 may extend from the — first mounting elements 20 through the first inner surface layer 13 into the support members 17 (not shown in figure 7).

As shown in figure 7, the first mounting elements 20 may be fixedly secured to the wall unit 10 with one or more securing members 21 penetrating the inner first surface layer 13, and thus the waterproofing 16. A sealing member 23 is provided in connection with the securing members 21 and arranged to seal the securing members 21 to the wall unit or to the first surface layer 13, or waterproofing 16 or to the top surface layer 18. The sealing member 23 may be provided between the wall unit 10 and the first mounting element 20, or between the first surface layer 13 and the first mounting elements 20, or between the top surface layer 18 and the first mounting element 20. The securing member 21 may go through or penetrate the sealing member 23. Each securing member 21 may comprise own sealing member 23 or one sealing member 21 may be common for S two or more securing members 21.

rr The sealing members 23 may be made of any known sealing material, E 30 such as plastic, rubber, silicone, Teflon or the like. Further, the sealing member 23 > may be a sealing ring, sealing plate, or any other type of sealing member.

S The sealing member 23 provides waterproofing or sealing against O moisture or water entering the structures of the wall unit 10 via the securing > members 21 which penetrate the waterproofing 16 or the inner surface layer 13.

Furthermore, in all embodiments the wall unit 10, or the first inner surface 12, or the first inner surface layer 13 and/or the support members 17 maybe provided with premade openings or holes (not shown) for the securing elements 21. Alternatively, the securing elements 21 may penetrate the wall unit 10, or the first inner surface 12, or the first inner surface layer 13 and/or the support members 17 when they are installed and make the holes at the same time. Figures 8 and 9 show another embodiment in which the first mounting elements 22 are mounting rails extending in horizontal direction. All the above mentioned applies also to the embodiment of figures 8 and 9.

Further, in some embodiment the mounting rails 20, 22 may extend parallel to the support members 17. Alternatively, the mounting rails 20, 22 may — extend perpendicularly or in an angle to the support members 17.

Figures 10 and 11 show still another embodiment, in which the first mounting elements 24 are separate point-like mounting elements fixedly secured to the wall unit. The point-like separate mounting elements 24 may be any kind of mounting elements and they may be fixedly secured to the wall nit 10 in any manner as disclosed above. Furthermore, the point-like separate mounting elements 24 may be arranged in any kind pattern of the wall unit 10 or the inner first surface 12 of the wall unit 10. The separate point-like mounting elements 24 may be fixedly secured to the wall unit 10, or the first inner surface layer 13 and/or to the support members 17. Accordingly, the separate point-like mounting elements 24 may be aligned with the support members 17.

Figures 12a, 12b and 12c shows a fixture 30, such as cupboard. The fixture 30 comprises a front side 32 and a back surface or back side 34. Figure 12a shows the fixture 30 from the front, figure 12b from the back and figure 12c from side. The front side 32 is provided with a handle 33. The back surface 34 is provided with one or more second mounting elements 35 fixedly secured to the fixture 30. = The second mounting elements 35 may be similar as the first mounting elements N 30. Thus, the second mounting elements 35 may be mounting rails extending in S vertical or horizontal direction or in an angle relative to the vertical and/or rr horizontal direction. The second mounting elements 35 may be fixedly secured to E 30 — the fixture 30 with screws, bolts, nails, adhesive material, glue, or some other > mechanical or chemical fasteners or fastening materials.

S Accordingly, the first mounting elements 20, 22, 24 and the second O mounting elements 35 are arranged to form together a releasable mounting > connection between the wall unit 10 and the fixture 30 on the waterproofing 16 at the side of the room space of the modular room unit 1.

Therefore, the first mounting elements 20, 22, 24 may comprise one ormore first connecting members and the second mounting elements 35 may comprise one or more second connecting members. The first connecting members and the second connecting members are arranged to provide the releasable mounting connection between the first mounting elements 20, 22, 24 and the second mounting elements 35, and between the wall unit 10 and the fixture 30. Accordingly, the fixture may be installed to the wall unit 10 without affecting the waterproofing 16, and also removed or replaced without touching or affecting the waterproofing 16. During installation, the fixture 30 is attached to the wall unit 10 by connecting the first and second mounting elements 20, 22, 24, 35 together. Accordingly, the second connecting members of the second mounting elements 35 of the fixture 30 are connected with the first connecting members of the first mounting elements 20, 22, 24 of the wall unit 10. Similarly, when the fixture is removed from the wall unit 10, the second connecting members of the second mounting elements 35 of the fixture 30 are detached or uncoupled from the first connecting members of the first mounting elements 20, 22, 24 of the wall unit 10. Figure 13 shows one embodiment of the wall unit 10 having the first inner surface 12 at the side of the room space of the modular room unit 1 or towards the interior of the modular room unit 1. The wall unit 10 and the first inner surface 12 thereof comprises wall surface area 40 or interior wall surface which may be provided with a top interior layer, such as ceramic tiles, wood, panels, on composite material. Thus, the wall surface area 40 is provided with finished interior surface. The wall unit 10 and the first inner surface 12 thereof further comprises fixture mounting area 42 which is provided with the first mounting elements 20. The fixture mounting area 42 provides a pre-defined area for mounting fixtures 30 to the wall unit 10 and the modular room unit 1. Accordingly, = different kinds of fixtures 30 may be installed to the fixture mounting area 42 based N on circumstances and design options. It should be noted that each or some of the S wall units 10 of the modular room unit 1 may comprise one or more fixture rr mounting areas 42 and one or more wall surface areas 40. E 30 The invention has been described above with reference to the examples > shown in the figures. However, the invention is in no way restricted to the above S examples but may vary within the scope of the claims.

S NM

Claims

1. A modular room unit (1) comprising: - a base slab (2); - wall units (10, 10a, 10b, 10c, 10d) defining a room space of the modular room unit (1), the wall units (10, 10a, 10b, 10c, 10d) comprising an inner wall surface (12) towards the room space of the modular unit (1); and - a fixture (30) mounted to at least one of the wall units (10, 10a, 10b, 10c, 10d) of the modular room unit (1), characterized inthatthe modular room unit (1) further comprises: - waterproofing (16) on the inner wall surface (12) of the wall units (10, 10a, 10b, 10c, 10d); - one or more first mounting elements (20, 22, 24) fixedly secured to at least one of the wall units (10, 10a, 10b, 10c, 10d) on the waterproofing (16) at the side of the room space of the modular room unit (1); - one or more second mounting elements (35) fixedly secured to the fixture (30); and that - the one or more first mounting elements (20, 22, 24) and the one or more second mounting elements (35) are arranged to form together a releasable mounting connection between the at least one of the wall units (10, 10a, 10b, 10c, 10d) and the fixture (30) on the waterproofing (16) at the side of the room space of the modular room unit (1).

2. A modular room unit (1) according to claim 1, characterized in that the one or more first mounting elements (20, 22, 24) comprise one or more o 25 — first connecting members and the one or more second mounting elements (35) Oo comprise one or more second connecting members, the one or more first N connecting members and the one or more second connecting members being <Q arranged to provide the releasable mounting connection between the one or more - first mounting elements (20, 22, 24) and the one or more second mounting E 30 elements (35). 2

3. A modular room unit (1) according to claim 1 or 2, 3 characterized inthat: > - the one or more first mounting elements (20, 22, 24) are mounting rails; or - the one or more first mounting elements (20, 22, 24) are mountingrails extending in vertical direction; or - the one or more first mounting elements (20, 22, 24) are mounting rails extending in horizontal direction.

4. A modular room unit (1) according to any one of claims 1 to 3, characterized inthat: - the one or more first mounting elements (20, 22, 24) are fixedly secured to the at least one of the wall units (10, 10a, 10b, 10c, 10d) with one or more securing members (21) penetrating the waterproofing (16) of the atleast one ofthe wall units (10, 10a, 10b, 10c, 10d); or - the one or more first mounting elements (20, 22, 24) are fixedly secured to the at least one of the wall units (10, 10a, 10b, 10c, 10d) with one or more securing members (21) penetrating the waterproofing (16) of the atleast one of the wall units (10, 10a, 10b, 10c, 10d), and a sealing member (23) is provided in connection with the one or more securing members (21) and arranged to seal to one or more securing members (21) to the at least one of the wall units (10, 10a, 10b, 10c, 10d) or to the waterproofing (16) of the at least one of the wall units (10, 10a, 10b, 10c, 10d).

5. A modular room unit (1) according to any one of claims 1 to 4, characterized inthat: - the wall unit (10, 10a, 10b, 10c, 10d) comprise a wall body and the waterproofing (16) is a separate waterproofing layer provided on the wall body at the inner surface (12) of the wall unit (10, 10a, 10b, 10c, 10d); or - the wall unit (10, 10a, 10b, 10c, 10d) comprise a wall body and a = separate surface layer (18) provided on the wall body at the inner surface (12) of N the wall unit (10, 10a, 10b, 10c, 10d), the waterproofing (16) being a separate S waterproofing layer provided between the wall body and the separate surface rr layer (18); or I 30 - the wall unit (10, 10a, 10b, 10c, 10d) comprise a wall body having a > first surface layer (13) at the inner surface (12) of the wall unit (10, 10a, 10b, 10c, S 10d), the first surface layer (13) forming the waterproofing (16).

3 > 6. A modular room unit (1) according to claim 5,characterized — inthat: - the one or more first mounting elements (20, 22, 24) are fixedlysecured on the waterproofing (16) at the inner surface (12) of the at least one of the wall units (10, 10a, 10b, 10c, 10d); or - the one or more first mounting elements (20, 22, 24) are fixedly secured on the separate surface layer (18) at the inner surface (12) of the at least one of the wall units (10, 10a, 10b, 10c, 10d).

7. A modular room unit (1) according to any one of claims 1 or 6, characterized inthat: - the wall unit (10, 10a, 10b, 10c, 10d) is formed from waterproof sheet — material; or - the wall unit (10, 10a, 10b, 10c, 10d) is formed from waterproof sheet material, and that the waterproof sheet material forms the waterproofing (16) at the inner surface (12) of the wall unit (10, 10a, 10b, 10c, 10d); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises the wall body formed — from waterproof material; or - the wall unit (10, 10a, 10b, 10c, 10d) comprises the wall body formed from waterproof sheet material, the wall body having an inner surface layer (13) formed from the waterproof sheet material, the inner surface layer (13) forming the waterproofing (16); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises the wall body formed from waterproof sheet material, the wall body having an inner surface layer (13) formed from the waterproof sheet material and an outer surface layer (11), the wall body having a wall cavity (15) between the inner surface layer (13) and the outer surface layer (11) and the inner surface layer (13) forming the waterproofing (16).

D oO N

8. A modular room unit (1) according to claim 7, characterized S in that the waterproof sheet material is metal thin sheet, composite sheet material rr or reinforced plastic material. I 30 >

9. A modular room unit (1) according to claim 7 or 8, 2 characterized inthat: O - the one or more first mounting elements (20, 22, 24) are fixedly > secured to the waterproof sheet material of the wall unit (10, 10a, 10b, 10c, 10d); or - the one or more first mounting elements (20, 22, 24) are fixedlysecured to the inner surface layer (13) formed from the waterproof sheet material; or - the one or more first mounting elements (20, 22, 24) are fixedly secured to the inner surface layer (13) formed from the waterproof sheet material — with the one or more securing members (23) penetrating the inner surface layer (13).

10. A modular room unit (1) according to any one of claims 5 to 9, characterized inthat: - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support members (17) provided the wall body, and the one or more first mounting elements (20, 22, 24) are fixedly secured to at least one of the support members (17); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support members (17) provided to the wall body, and the one or more first mounting elements (20, 22, 24) are fixedly secured to at least one of the support members (17) with the one or more securing members (21); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support members (17) provided to the inner surface layer (13) of the wall body formed from the waterproof sheet material, and the one or more first mounting elements (20, 22, 24) are fixedly secured to at least one of the support members (17); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support members (17) provided to the inner surface layer (13) of the wall body formed from the waterproof sheet material, and the one or more first mounting elements (20, 22, 24) are fixedly secured to at least one of the support members (17) with = one or more securing members (21); or N - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support S members (17) provided between the inner surface layer (13) and the outer surface rr layer (11) of the wall body, and the one or more first mounting elements (20, 22, E 30 24) are fixedly secured to at least one of the support members (17); or > - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support S members (17) provided between the inner surface layer (13) and the outer surface O layer (11) of the wall body, and the one or more first mounting elements (20, 22, > 24) are fixedly secured to atleast one of the support members (17) with the one or more securing members (21).

11. A wall unit (10, 10a, 10b, 10c, 10d) for a modular room unit (1) having a room space, the wall unit (10, 10a, 10b, 10c, 10d) comprising an inner wall surface (12) towards the room space of the modular room unit (1) and a waterproofing on the inner wall surface (12), characterized in that: - the inner wall surface (12) is formed from waterproof sheet material; - the waterproof sheet material of the inner wall surface (12) is arranged to provide the waterproofing of the wall unit (10, 10a, 10b, 10c, 10d); - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more first mounting elements (20, 22, 24) fixedly secured to the inner surface (12) of the wall — unit (10, 10a, 10b, 10c, 10d) for mounting a fixture (30) to the wall unit (10, 10a, 10b, 10c, 10d).

12. A wall unit (10, 10a, 10b, 10c, 10d) according to claim 11, characterized inthat: - the wall unit (10, 10a, 10b, 10c, 10d) is formed from waterproof sheet material; or - the wall unit (10, 10a, 10b, 10c, 10d) comprises the inner surface layer (13) formed from the waterproof sheet material; or - the wall unit (10, 10a, 10b, 10c, 10d) comprises the inner surface layer (13) formed from the waterproof sheet material and an outer surface layer (11); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises the inner surface layer (13) formed from the waterproof sheet material, an outer surface layer (11), and a wall cavity (15) between the inner surface layer (13) and the outer surface layer (11).

D oO N 13. A wall unit (10, 10a, 10b, 10c, 10d) according to claim 12, S characterized inthat: rr - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support E 30 members (17) provided to the inner surface layer (13), and the one or more first > mounting elements (20, 22, 24) are fixedly secured to at least one of the support S members (17); or O - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support > members (17) provided between the inner surface layer (13) and the outer surface layer (11) of the wall unit (10, 10a, 10b, 10c, 10d), and the one or more first mounting elements (20, 22, 24) are fixedly secured to at least one of the supportmembers (17); or - the wall unit (10, 10a, 10b, 10c, 10d) comprises one or more support members (17) provided between the inner surface layer (13) and the outer surface layer (11) of the wall unit (10, 10a, 10b, 10c, 10d) and attached to the inner surface layer (13) and the outer surface layer (11) of the wall unit (1), and the one or more first mounting elements (20, 22, 24) are fixedly secured to at least one of the support members (17).

14. A wall unit (10, 10a, 10b, 10c, 10d) according to any one of claims 11tol1l3,characterized inthat: - the one or more first mounting elements (20, 22, 24) are mounting rails; or - the one or more first mounting elements (20, 22, 24) are mounting rails extending in vertical direction; or - the one or more first mounting elements (20, 22, 24) are mounting rails extending in horizontal direction.

15. A wall unit (10, 10a, 10b, 10c, 10d) according to any one of claims 11 to 14 characterized in that: - the one or more first mounting elements (20, 22, 24) are fixedly secured to the wall unit (10, 10a, 10b, 10c, 10d) with one or more securing members (21) penetrating the first surface layer (13) of the wall unit (10, 10a, 10b, 10c, 10d); or - the one or more first mounting elements (20, 22, 24) are fixedly — secured to the wall units (10, 10a, 10b, 10c, 10d) with one or more securing = members (21) arranged to penetrate the first surface layer (13) of the wall unit N (10, 10a, 10b, 10c, 10d) and to attach to at least one of the one or more support S members (17). I 30

16. A wall unit (10, 10a, 10b, 10c, 10d) according to any one of claims > 11 to 15, characterized in that the one or more first mounting elements 2 (20, 22, 24) comprise one or more first connecting members arranged to provide a O releasable mounting connection for connecting a fixture (30) in releasable manner > to the wall unit (10, 10a, 10b, 10c, 10d).

17. A wall unit (10, 10a, 10b, 10c, 10d) according to any one of claims

11 to 16, characterized in that the wall unit (10, 10a, 10b, 10c, 10d) comprises a top layer (18) provided on the first surface layer (13), and that the one or more first mounting elements (20, 22, 24) are arranged on the top layer (18).

o

O

N

G

I = ©

O

O 0

O

N