Prefabricated wall module for the exterior facade of a building, prefabricated group, prefabricated exterior wall or facade

Abstract

A prefabricated wall module (2) for the construction of a prefabricated exterior facade (100) of a building comprises a first frame (21) made at least partially of wood intended to be arranged alongside other wall modules, at the peripheral edge (210) thereof, in order to form the exterior facade (100). Furthermore, a first metal profile (3) is fixed to the first frame (21) close to a perimeter edge (210) of the first frame (21). A first concrete slab (22) extends in a vertical direction (Z) and a horizontal direction (X) and is joined to the first frame (21) on the side of the external environment (E). A first cover (24), for example a sheet, mostly or totally covers the first frame (21) and / or the first slab on the side of the external environment (E). Said first cover (24) is suitable for reducing or preventing the entry of air or water into the first frame (21). Furthermore, in the horizontal direction (X), a first groove (7) is obtained between the first metal profile (3) and the first frame (21), which predominantly extends along the vertical direction (Z) and is filled at least partially with a sealing material layer (71) that joins the first metal profile (3) and the first cover (24). A prefabricated exterior wall or facade (100) of a building comprises a plurality of said prefabricated wall modules (1).

Description

PREFABRICATED WALL MODULE FOR THE EXTERIOR FACADE OF ABUILDING, PREFABRICATED GROUP , PREFABRICATED EXTERIOR WALL OR FACADE DESCRIPTIONField of application

[0001] The present invention relates to a prefabricated wall module for the prefabricated exterior facade of a building, a prefabricated group comprising a plurality of said modules and a prefabricated exterior wall formed from multiple assemblies .

[0002] In general , the present invention is in the field o f prefabricated construction .

[0003] More particularly, the present invention relates to the use of prefabricated panels for constructing exterior structural walls suitable for supporting the weight thereof and wind and earthquake loads for the construction of residential , tertiary-sector or large-scale commercial buildings , made at least partially of wood .

[0004] For the construction of exterior walls or facades o f buildings at least partially made of wood, known solutions provide for the creation of partial ly or entirely prefabricated modules in a factory consisting of a frame composed of vertical uprights , interposed with insulating material , and closed using wood-based panels . In the case of load-bearing walls , these are lightweight modules thatmake it possible to optimi ze and contain the dimensions of the technical elements by virtue of inserting insulating material into the thickness of the structures : the crosssection of the walls is therefore reduced without changing the thermal and structural performance of the building .

[0005] These modules are used as structural load-bearing elements on buildings of limited height , or as a buf fer element which may be applied to load-bearing structures made of wood, steel or reinforced concrete . In these cases , the insulating ability of the wall may be used to completely wrap the building, also covering the main structural elements (beams and pillars ) .

[0006] At the construction site , in some cases , the modules are j oined together and the j unction points , between the modules , are sealed by means of special sealing agents .

[0007] Inconveniently, the aforesaid solutions of the prior art may not be used for large buildings with a large number of floors . This i s because such type of building requires considerable displacements between the modules due to the ef fect of deformations induced by hori zontal wind and / or earthquake actions and above all adequate wind, fire and water resistance measures , as well as challenging tolerances to be respected .Summary of the invention

[0008] There therefore appears to be a strong need to providea pref bricated wall module , a prefabricated group, and a prefabricated exterior facade or wall that is capable of overcoming the typical drawbacks of the prior art and that simpli fies the operations for constructing exterior walls and prefabricated facades of large buildings , without however having to give up the benefits of wooden walls .

[0009] Furthermore , there is also a need to provide a prefabricated module which may be adapted to multiple architectural configurations and which may meet adequate or improved performance requirements in terms of resistance to atmospheric agents and insulation, without having to forego the advantages of wood .

[0010] Such requirements are met by a prefabricated wall module , by a prefabricated group for an exterior facade of a building and a prefabricated exterior wall according to the attached independent claims . The dependent claims describe preferred or advantageous embodiments of the invention, comprising further advantageous features . Description of the drawings

[0011] The features and advantages of the prefabricated wal l module , of the prefabricated group and of the prefabricated exterior wall will become apparent from the following description of some preferred embodiments , given by way of indicative and non-limiting example , with reference to the accompanying drawings , wherein :

[0012] Figure 1 shows a front view of a prefabricated facade according to one embodiment of the invention;

[0013] Figure 2 shows a cross-sectional plan view along the sectional plane A-A of Figure 1 of the prefabricated facade of Figure 1 ;

[0014] Figure 3 shows a cross-section of an axonometric view of a prefabricated facade according to one embodiment of the present invention, from a more rearward point of view, i . e . , more towards the side of the indoor environment of the building;

[0015] Figure 4 shows a cross-section of an axonometric view of a prefabricated facade according to one embodiment of the present invention, from a more forward point of view, i . e . , more towards the side of the external environment of the building .Detailed description

[0016] With reference to the aforesaid figures , a prefabricated group for the construction of a prefabricated exterior facade of a building has been indicated as a whole with the reference numeral 1 .

[0017] The prefabricated group 1 comprises a first prefabricated wall module 2 comprising a first frame 21 , made at least partially or mainly of wood, extending in a vertical direction Z and a hori zontal direction X and preferably less in a transverse direction Y intended, whenthe first wall module 2 is installed on the building, to be arranged along the direction between the external environment E and the internal environment I of the building . The first wall module 2 also comprises a first metal profile 3 , mainly extending along the vertical direction Z and fixed to the first frame 21 , preferably along a perimeter edge 210 of the first frame 21 .

[0018] In this document , when referring to a wall module , a first wall module 2 or a second wall module 2 ' or a third wall module for brevity, it will be understood, in any event , that this is a prefabricated wall module .

[0019] It is clear that , preferably, the vertical direction Z is a direction perpendicular to the hori zontal direction X, both preferably being perpendicular to the transverse direction Y . For example , preferably, but not necessarily, the vertical direction Z is a direction having a main component thereof that is parallel to the direction of the force of gravity or that is precisely parallel to the force of gravity . Similarly, the hori zontal direction X is a direction having a main component thereof perpendicular to the direction o f the force of gravity or else it is precisely perpendicular to the force of gravity . It is however clear that the two directions may also be exchanged therebetween .

[0020] The first wall module 2 comprises a first sealinggasket 4 joined to the first metal profile 3 and extending mainly along the vertical direction Z .

[0021] The prefabricated group 1 comprises a second prefabricated wall module 2' comprising a second frame 21' extending in a vertical direction Z and a horizontal direction X and, preferably less so in the transverse direction Y. The second wall module 2' comprises a second metal profile 3', mainly extending along the vertical direction Z and fixed to the second frame 21' preferably along a perimeter edge of the second frame 21' .

[0022] The second wall module 2' comprises a second sealing gasket 4' joined to the second metal profile 3' and extending mainly along the vertical direction Z. The sealing gasket 4' is preferably joined to the second metal profile 3' by interlocking.

[0023] The first metal profile 3 and the second metal profile 3' are preferably made of aluminum.

[0024] The first wall module 2 is arranged alongside the second wall module 2' along the horizontal direction X so that the first metal profile 3 faces the second metal profile 3' and is spaced apart from the second metal profile 3', so that a gap 5 is formed therebetween.

[0025] The first sealing gasket 4 and the second sealing gasket 4' are accommodated in said gap 5 to be in mutual contact and are suitable for compensating for anyinstallation tolerances in the juxtaposition between the wall module 2 and the second wall module 2' and / or allowing for any relative movement between the first wall module 2 and the second wall module 2' along said horizontal direction X, for example caused by thermal expansion or other deformation phenomena, such as wind or earthquake or gravitational loads on the structural elements of the building that bear the facade.

[0026] According to one embodiment, the first metal profile 3 comprises an auxiliary gasket seat 31 suitable for accommodating an auxiliary sealing gasket 4' ' .

[0027] According to one embodiment, the second metal profile 3' comprises a male element 31' which protrudes in the horizontal direction X and supports the auxiliary sealing gasket 4' ' in the auxiliary gasket seat 31. This allows the seal of the joint between the first wall module 2 and the second wall module 2' to be further ensured in the event of rain or water originating from the external environment E, insofar as any water entering through the first gasket 4 and the second gasket 4' would be further blocked by the male element 31' and / or the auxiliary sealing gasket 4' ' .

[0028] The male element 31' preferably protrudes in the horizontal direction X over a length at least equal to or greater than the length L of the gap 5 in the horizontaldirection X .

[0029] According to one embodiment , the length of the gap 5 in the hori zontal direction X i s such as to ensure a relative movement between the first wall module 2 and the second wall module 2 ' of at least five millimeters , preferably at least fi fteen millimeters , in the hori zontal direction X . This allows continuity between the modules to be ensured and at the same time allows for consistent movements and tolerances to be accommodated between the modules .

[0030] According to one embodiment , the length of the auxiliary gasket seat 31 in the transverse direction Y, orthogonal to both the hori zontal direction X and the vertical direction Z , is such as to ensure a relative movement between the first wall module 2 and the second wall module 2 ' in the transverse direction Y of at least two millimeters , preferably at least three millimeters . This also allows for the compensation of any disengagement or rotation movements about the hori zontal axis X .

[0031] According to one embodiment , the f irst wall module 2 and the second wall module 2 ' extend in height along the vertical direction Z for a length of at least two floors of a building, preferably for a length greater than six meters .

[0032] According to one embodiment , the f irst wall module 2and the second wall module 2' comprise a first reinforced concrete slab 22 and a second reinforced concrete slab 22' joined to the first frame 21 and to the second frame 21', respectively .

[0033] According to one embodiment, each first slab 22 made of reinforced concrete and second slab 22' made of reinforced concrete is joined to an auxiliary sheet made of plasterboard to ensure greater structural strength and at the same time to allow adequate fire resistance by virtue of the reinforced concrete.

[0034] The reinforced concrete is preferably reinforced with a fiberglass coating embedded in the cement.

[0035] According to one embodiment, the first wall module 2 and the second wall module 2' comprise a first sheet of fiberglass 25 and a second sheet of fiberglass 25' joined to the first frame 21 and to the second frame 21', respectively, on the opposite side with respect to the first reinforced concrete slab 22 or with respect to the second reinforced concrete slab 22' .

[0036] According to one embodiment, the first wall module 2 and the second wall module 2' comprise a first cover 24 and a second cover 24', for example a sheet, respectively, which cover the first frame 21 and the second frame 21' . The first cover 24 or the second cover 24' is suitable for reducing or preventing the entry of air or water into thefirst frame 21 or the second frame 21', respectively.

[0037] The first cover 24 and the second cover 24' are preferably suitable for allowing the water vapor to pass from the first frame or the second frame to the external environment E.

[0038] The first cover 24 and the second cover 24' are preferably a sheet made of fiberglass or a polymer membrane .

[0039] The first cover 24 and the second cover 24' are preferably configured to have water vapor permeability according to the EN 12572 standard of below 0.2 m, preferably of between 0.08 and 0.1 m, preferably 0.09.

[0040] Preferably, the first cover 24 and the second cover 24' are configured to have water impermeability according to the EN ISO 12572 standard of at least 450 g / m2 / 24h, preferably between 450 and 550 g / m2 / 24h, even more preferably about 500 g / m2 / 24h.

[0041] Preferably, the first cover 24 and the second cover 24' are both configured to exhibit the aforesaid water vapor permeability and water impermeability values simultaneously .

[0042] Preferably, the first cover 24 and the second cover 24' are configured to have a reaction-to-f ire according to the EN 13501-1 standard at least in class B-sl,d0, preferably at least in class A2-sl,d0.

[0043] According to one embodiment, in the horizontal direction X, between the first metal profile 3 and the first frame 21 a first groove 7 is obtained that is at least partially filled with a sealing material layer 71, for example a silicone material, which joins the first metal profile 3 and the first frame 21 and wherein between the second metal profile 3' and the second frame 21' a second groove 7 ' is obtained that is at least partially filled with a second sealing material layer 71', for example a silicone material, which joins the second metal profile 3' and the second frame 21' .

[0044] According to one embodiment, the sealing material layer 71, 71' is directly joined to the first cover 24 and / or the second cover 24' .

[0045] Advantageously, when the sealing material layer 71, 71' is a silicone material and the first cover 24 and / or the second cover 24' is a sheet comprising fiberglass, the union between the sealing material layer 71, 71' and the first cover 24 and / or the second cover 24' makes it possible to obtain a first or second wall module 2' that is capable of satisfying one or more of the following tests, but also all of the following tests:

[0046] - permeability to air test for the UNI EN 12153:2002 classification;

[0047] - sealing under static pressure test for the UNI EN12155:2002 classification;

[0048] - wind resistance under operating conditions test for the UNI EN 12179:2002 classification;

[0049] - permeability to air test for class confirmation after the wind test UNI EN 12153:2002;

[0050] - water leak test for class confirmation after the wind test UNI EN 12155:2002;

[0051] - water leakage under dynamic conditions test according to UNI EN 13050:2011;

[0052] - increased wind resistance test under safe conditions according to UNI EN 12179:2002.

[0053] Surprisingly, the aforesaid tests are passed despite using the first cover 24 and the second cover 24' configured according to the embodiments having the features of vapor permeability and water impermeability detailed within the preceding paragraphs.

[0054] According to one embodiment, the first groove 7 and / or the second groove 7 ' are at least partially also filled with a layer of expanded polymer foam 72.

[0055] According to one embodiment, the first metal profile 3 is fixed to the first frame 21 by means of first hardware 8, for example by means of screws or threaded rods.

[0056] According to one embodiment, the second metal profile 3' is fixed to the second frame 21' by means of second hardware 8', for example by means of screws orthreaded rods .

[0057] It is clear that a prefabricated facade or exterior wall 100 of a building, comprising a plurality of prefabricated assemblies according to any of the previously described embodiments, fixed to load-bearing structures of said building, is also an object of the present invention.

[0058] Furthermore, it is clear that per se a prefabricated wall module 2, 2' , 2' ' in one of the embodiments described above with reference to the first wall module 2 or the second prefabricated wall module 2', is also an object of the present invention.

[0059] In particular, according to a particularly advantageous embodiment of the present invention, irrespective of the presence or absence of the sealing gasket 4, 4' or of the specific geometry of the metal profile 3, 3', the prefabricated wall module 2 according to the present invention comprises a first frame 21 made at least partially of wood and extending in a vertical direction Z and a horizontal direction X. Such prefabricated wall module, as already explained, is intended to be arranged alongside other wall modules, at the peripheral edge 210 thereof, in order to form the exterior facade 100, in such a way as to separate an inner environment I of a building from an external environmentE when installed on the building . According to one embodiment , the prefabricated wall module 2 comprises the first metal prof ile 3 fixed to the first frame 21 in proximity to the peripheral edge 210 of the first frame 21 and the first cement slab 22 , preferably reinforced concrete , also extending in a vertical direction Z and a hori zontal direction X, and j oined to the first frame 21 on the side of the external environment E .

[0060] Furthermore , the prefabricated wall module 2 comprises the first cover 24 , which mainly or totally covers the first slab 22 on the side of the external environment E and which is suitable for reducing or preventing the entry of air or water into the first frame 21 .

[0061] For example , the first cover 24 is directly j oined to the first slab 22 .

[0062] In one embodiment , the first cover mainly or totally covers the first slab 22 and therefore , indirectly, also the first frame 21 , given that such frame is arranged behind the first sheet .

[0063] In one embodiment , the first cover 24 mainly or totally covers the first slab 22 and also directly covers the first frame 21 , for example because it is directly adhered to the first frame 21 .

[0064] In one embodiment , the first cover 24 mainly ortotally covers the first frame 21 , for example because it is directly adhered to the first frame 21 .

[0065] As already mentioned, according to one embodiment , the prefabricated wall module 2 anticipates that in the hori zontal direction X, between the first metal profile 3 and the first frame 21 , a first groove 7 is obtained that extends mainly along the vertical direction Z and that is at least partially filled with a sealing material layer 71 that j oins the f irst metal profile 3 and the first cover 24 , so that the union between the metal profile 3 and the first frame 21 is sealed . The sealing material 71 therefore indirectly j oins the first metal profile 3 to the first frame 21 by means of the cover 24 .

[0066] It is clear that all of the features and embodiments of the prefabricated wall module 2 mentioned in the embodiments described in this description, also with reference to the prefabricated group, apply similarly and independently to the prefabricated wall module 2 .

[0067] Furthermore , the first wall module 2 is suitable for being arranged alongside a second wall module 2 ' along the hori zontal direction X, so that the first metal profile 3 faces a second metal profile 3 ' and is spaced apart from the second metal profile 3 ' in order to form a gap 5 therebetween .

[0068] The first sealing gasket 4 is suitable for cominginto contact with a second sealing gasket 4 ' of the second wall module 2 ' in said gap 5 and for compensating for any installation tolerances in the j uxtaposition between the first wall module 2 and the second wall module 2 ' and / or for allowing for any relative movement between the wall module 2 and the second wall module 2 ' along said hori zontal direction X, for example caused by thermal expansion or other deformation phenomena .

[0069] Preferably, the first sealing gasket 4 and / or the second sealing gasket 4 ' each comprise a lip 41 , 41 ' that is in contact with a lip of the other .

[0070] Preferably, for connection to the load-bearing structures of the building, each prefabricated module also comprises a structural hardware 9 for connecting the module to the load-bearing structures of the building . The structural hardware , such as threaded pins or screws , may be directly connected to the wooden frame 21 , 21 ' or to the metal profiles 3 , 3 ' .

[0071] It is clear that in this discussion, the hori zontal direction X, vertical direction Z , and transverse direction Y must be understood in a direction that is relative to the module per se . In fact , what has been described may apply both to a j unction region G between modules with a prevalent extension along a vertical direction Z parallel to the force of gravity, and to ajunction region G between modules with a prevalent horizontal extension X, perpendicular to the force of gravity. In fact, preferably, for the construction of a wall, the prefabricated modules have junction regions between modules in a similar manner in both the vertical direction Z and the horizontal direction X.

[0072] Additionally, therefore, according to an advantageous embodiment, the present invention, per se, also relates to a third prefabricated wall module 2' ' which may similarly comprise the specific embodiments described above with reference to the first prefabricated wall module 2 or to the second prefabricated wall module 2' but which, while maintaining the previously employed definition of horizontal direction X and vertical direction Z, comprises in particular a fourth sealing gasket 40 which extends mainly along the horizontal direction X. In particular, the third prefabricated wall module 2' ' comprises a third frame 21' ' extending in a vertical direction Z and a horizontal direction X and a third metal profile 3' ' extending mainly along the horizontal direction X and fixed to the third frame 21' ' .

[0073] Said third wall module 2' ' comprises a third sealing gasket 4' ' ' joined to the third metal profile 3' ' and extending mainly along the horizontal direction X.

[0074] Furthermore, said third wall module 2' ' is suitablefor being arranged alongside (i.e., above or below) the first wall module 2 or the second wall module 2' along the vertical direction Z such as to compose at least one portion of the exterior facade 100' and so that the third metal profile 3' ' faces a fourth metal profile 3' ' ' of the second wall module 2' or the first wall module 2 and is also spaced apart from the fourth metal profile 3' ' ', so that an auxiliary gap 5' is formed therebetween.

[0075] Thus, according to one embodiment, for example shown in Figures 1, 3 and 4, the prefabricated group 1 comprises the third wall module 2' ' which comprises a third frame 21' ' extending in a vertical direction Z and a horizontal direction X and a third metal profile 3' ', mainly extending along the horizontal direction X and fixed to the third frame 21' ', preferably along a perimeter edge of the third frame 21' ' . Said third wall module 2' ' comprises a third sealing gasket 4' ' ' joined to the third metal profile 3' ' and extending mainly along the horizontal direction X.

[0076] Furthermore, in this variant, the first wall module 2 comprises a fourth metal profile 3' ' ' and a fourth sealing gasket 40 joined to the fourth metal profile 3' ' ' and extending mainly along the horizontal direction X.

[0077] Furthermore, in this variant, alternatively or together with the first wall module 2, the second wall module 2' comprises a fourth metal profile 3' ' ' and afourth sealing gasket 40 joined to the fourth metal profile3' ' ' and extending mainly along the horizontal direction X.

[0078] The first wall module 2 and / or the second wall module 2' is therefore adjacent to the third wall module 2' ' along the vertical direction Z to form at least one portion of the exterior facade 100' and so that the third metal profile 3' ' faces the fourth metal profile 3' ' ' and is spaced apart from the fourth metal profile 3' ' ', so that an auxiliary gap 5' is formed therebetween.

[0079] The third sealing gasket 4' ' ' and the fourth sealing gasket 40 are accommodated in said auxiliary gap 5' to be in mutual contact and are suitable for compensating for any installation tolerances in the juxtaposition between the first wall module 2 or the second wall module 2 ' with the third wall module 2' ' and / or are suitable for allowing for any relative movement between the first wall module 2 or the second wall module 2' with the third wall module 2' ' along said vertical direction Z, for example caused by thermal expansion or other deformation phenomena.

[0080] According to one advantageous embodiment, the third metal profile 3' ' or the fourth metal profile 3' ' ' comprises an accessory sealing seat 32 suitable for accommodating an accessory sealing gasket 42. If it is the fourth metal profile 3' ' ' that comprises the accessorysealing seat 32 ( as shown in Figures 3 and 4 ) , then the third metal profi le 3 ' ' comprises an accessory male element 33 that protrudes in the vertical direction Z and that supports the accessory sealing gasket 42 in the accessory sealing seat 32 .

[0081] I f , on the other hand, it is the third metal profile 3 ' ' that comprises the accessory sealing seat 32 , then the fourth metal profile 3 ' ' ' comprises an accessory male element 33 that protrudes in the vertical direction Z and that supports the accessory sealing gasket 42 in the accessory sealing seat 32 .

[0082] Advantageously, in both cases , the seal obtained from the coupling between the accessory sealing gasket 42 and the accessory sealing seat 32 takes place more internally than the seal obtained from the coupling between the auxiliary sealing gasket 4 ' ' and the auxiliary sealing seat 31 , in the direction between the external environment E and the internal environment I . This advantageously allows for further ensuring that water due to rain impacting upon the prefabricated modules , should it reach the auxiliary gasket seat 31 and be channeled by gravity toward the third wall module 2 ' ' , will be further prevented from proceeding towards the internal environment I by said accessory sealing gasket 42 .

[0083] Preferably, the auxiliary sealing gasket 4 ' ' lies ona first imaginary plane P arranged more towards the external environment E with respect to a second imaginary plane Pl whereupon the accessory sealing gasket 42 lies.

[0084] Preferably, the male element 31' lies on a first imaginary plane P arranged more towards the external environment E with respect to a second imaginary plane Pl whereon the accessory male element 33 lies.

[0085] It should be noted that in this discussion, when reference is made to a wooden frame, such as the first frame 21, the second frame 21' and the third frame 21' ', reference is made to a wooden structure that may assume various configurations, both in the form of a panel and in the form of a box-shaped or frame-shaped structure with uprights and cell-forming crosspieces. In a preferred embodiment, in particular, the prefabricated module anticipates that the wooden frame, e.g., the first frame 21 and / or the second frame 21' and / or the third frame 21' ' is / are a cell-forming wooden frame whereinto an insulating material other than wood is inserted, is suitable for thermal and acoustic insulation, e.g., glass wool and / or rock wool and / or an expanded polymeric material.

[0086] Innovatively, the prefabricated structure, the prefabricated module and the prefabricated wall or exterior facade, object of the present invention, largely fulfill the intended purpose, overcoming those problemsthat are typical of the prior art .

[0087] In a further advantageous way, the j oining of a wooden frame , a concrete slab and a cover suitable for reducing or preventing the entry of air or water into the wooden frame , together with a metal profile for the j unction between modules , makes it possible , in a surprising manner, and for the first time , facade performance that is capable of passing UNI EN tests for the certi fication of facades for resistance to atmospheric agents despite using wooden frames .

[0088] Advantageously, moreover, this allows prefabricated facades to be obtained that are made of sustainable , lightweight materials and that ensure the required performance in terms of thermal insulation .

[0089] Advantageously, with the present invention it is possible to make prefabricated walls and facades , al so made at least partially of wood, using large prefabricated panels as i f they were facade cells , managing the movements and tolerances of the j unction regions between modules as i f it were a continuous prefabricated module facade , but without the need for exterior seals and thus being able to greatly expand the range of applicabi lity .

[0090] In fact , by virtue of the j unction regions with gaps and gaskets that allow movements and tolerances to be accommodated, the prefabricated modules may also be usedin multi-story buildings or in any case buildings that are af fected by signi ficant movements of the structures in the three dimensions , which is not feasible with traditional prefabricated wooden panels . This , moreover, while continuing to maintain the water and wind resistance requirements required by current regulations .

[0091] Advantageously, moreover, interventions at the construction site are minimi zed and it is possible to have a flexible system for adapting to various aesthetic- architectural design configurations .

[0092] Further advantageously, safety for operators on the construction site is increased, insofar as they do not have to perform onerous sealing or safety operations at altitude .

[0093] Furthermore , regardless of the composition of the modules for the construction of the wall , the j oining region between the modules remains unchanged thereby ensuring continuity between metal profiles and wooden elements .

[0094] According to one advantageous embodiment , a prefabricated module extends to the measure of three meters by eight meters , af fecting up to two floors of the building despite ensuring the possibility of standard transport , without the aid of exceptional means .

[0095] Additionally, in addition to lifting means for movingthe panels , the installation requires only operators from inside the building, thus managing to ensure the highest standards in terms of safety and risk minimi zation .

[0096] According to one advantageous embodiment , moreover , between two successive prefabricated modules there is a technical space T , arranged to the rear of the male element 31 ' , which is useful , for example , for accommodating the passage of installation cables for electrically or thermally supplying said module .

[0097] Advantageously, the module is scalable in si ze according to contingent needs .

[0098] It is clear that a person skilled in the art may make changes to the invention in order to meet contingent needs , said changes all falling within the scope of protection as defined in the following claims .

Claims

Claims1. A prefabricated wall module (2) , for the construction of a prefabricated exterior facade (100) of a building, comprising :- a first frame (21) made at least partially of wood and extending in a vertical direction (Z) and a horizontal direction (X) , intended to be arranged, at a peripheral edge (210) thereof, next to other wall modules to form the exterior facade (100) , so as to separate an interior environment (I) of a building from an exterior environment (E) when installed on the building;- a first metal profile (3) , predominantly extending along the vertical direction (Z) and fixed to the first frame (21) close to a peripheral edge (210) of the first frame (21) ;- a first slab (22) made of concrete, preferably reinforced concrete, extending in a vertical direction (Z) and a horizontal direction (X) , joined to the first frame (21) on the side of the external environment (E) ;- a first cover (24) , such as a sheet, which mostly or totally covers the first frame (21) and / or the first slab on the side of the external environment (E) , said first cover (24) being suitable for reducing or preventing the entry of air or water into the first frame (21) ; wherein, in the horizontal direction (X) , a first groove (7) is obtained between the first metal profile (3) andthe first frame (21) , which predominantly extends along the vertical direction (Z) and which is filled at least partially with a sealing material layer (71) , which joins the first metal profile (3) and the first cover (24) .

2. Prefabricated wall module (2) according to claim 1, wherein the first cover (24) comprises porosities suitable for allowing the water vapor to pass from the first frame to the external environment E.

3. Prefabricated wall module (2) according to claim 2, wherein the first cover (24) is configured to have a water vapor permeability according to EN 12572 below 0.2 m, preferably of between 0.08 and 0.1 m, preferably of 0.09.

4. Prefabricated wall module (2) according to any one of the preceding claims, wherein the first cover (24) is configured to have a water impermeability according to EN ISO 12572 of at least 450 g / m2 / 24h, preferably of between 450 and 550 g / m2 / 24h, even more preferably of about 500 g / m2 / 24h .

5. Prefabricated wall module (2) according to any one of the preceding claims, wherein the first cover (24) is configured to have a reaction to fire according to EN 13501-1 at least in class B-sl,d0, preferably at least in class A2-sl,d0.

6. Prefabricated wall module (2) according to any one of the preceding claims, wherein the first cover (24) is a sheet comprising fiberglass.

7. Prefabricated wall module (2) according to any one of the preceding claims, wherein the sealing material layer (71) is made of a silicone material and wherein the first cover (24) is a sheet comprising fiberglass.

8. Prefabricated wall module (2) according to any one of the preceding claims, wherein the first groove (7) is also filled at least partially with a polymer foam layer (72) .

9. Prefabricated wall module (2) according to any one of the preceding claims, wherein the first metal profile (3) is fixed to the first frame (21) by means of first hardware, for example by means of screws or threaded rods.

10. A prefabricated group (1) , for the construction a prefabricated exterior facade (100) of a building, comprising : a first wall module (2) according to any one of the preceding claims and comprising a first sealing gasket (4) joined to the first metal profile (3) and predominantly extending along the vertical direction (Z) ; a second wall module (2' ) according to any one of the preceding claims and comprising a second sealing gasket (4' ) joined to the second metal profile (3' ) and predominantly extending along the vertical direction (Z) ; wherein the first wall module (2) is arranged next to the second wall module (2' ) along the horizontal direction (X) to form at least one exterior facade portion (100' ) and so that the first metal profile (3) faces the second metalprofile (3' ) and is spaced apart from the second metal profile (3' ) , so that a gap (5) is formed therebetween, wherein the first sealing gasket (4) and the second sealing gasket (4' ) are accommodated in said gap (5) to be in mutual contact and are suitable for compensating for any installation tolerances when arranging the first wall module (2) and the second wall module (2' ) next to each other and / or to allow for any relative movement between the first wall module (2) and the second wall module (2' ) along said horizontal direction (X) , for example caused by thermal expansion or other deformation phenomena.

11. A prefabricated exterior wall or facade (100) of a building, comprising a plurality of prefabricated wall modules (1) according to any one of the claims from 1 to 10, fixed to load-bearing structures of the building or a plurality of prefabricated assemblies (1) according to claim 10.

Images