DK178581B1 - Modular system for post-insulating a wall in a building and / or facade renovation - Google Patents

Abstract

Post insulation and / or facade renovation module system with modules (11) for fixing against the outer wall (10) of an existing building. A module (11) comprises a bottom surface (13), a top surface (14) and vertical posts (15) between the bottom surface and the top surface. The bottom surface (13) and the top surface (14) comprise a first rail profile (19a) for a front wall and a first rail profile (19b) for a rear wall of a module. The first rail profile (19) is preferably a U-profile or an angular profile with a horizontal flange in use and at least one vertical flange in use. Each post (15) comprises a different rail profile which is disposed between the first rail profiles in the front wall or the rear wall. The second rail profile comprises a U-profile with two opposing flanges, arranged in parallel planes and interconnected by a central flange. The bottom surface (13) and the top surface (14) are each formed by a third rail profile (21) which includes a backing to which the first rail profile (19) for the front wall and the first rail profile for the rear wall are attached. The front rail of the third rail profile comprises one or more grooves and one or more projections which run parallel in the longitudinal direction of the third rail profile, the shape of the cross-section of a projection being similar to the shape of the cross-section of a track, and thus the grooves and projections , that a groove on a third rail profile may engage a groove on another corresponding third rail profile on another module.

Description

Modular system for post-insulating a wall in a building and / or facade renovation

The present invention relates to a modular system for post-insulation and / or facade renovation of an existing building, wherein a module comprises a bottom surface, a top surface and at least vertical posts between the bottom surface and the top surface.

BACKGROUND OF THE INVENTION

A building is usually erected by molding an insulated foundation and subsequently placing exterior walls, interior walls and the roof structure of the building so that it is supported at least by the exterior walls.

The outer walls usually include a form wall and a back wall. The wall is the exterior of the building and forms the building's climate screen, and the back wall is positioned against the interior of the building. Between the wall and the back wall there is a space filled with insulating material. The terms wall and back wall are not to be construed as necessarily walled, since the front walls and back walls may also be made of the usual materials used as interior and exterior walls of buildings, such as wood paneling, wood-based panels, for such as plywood, so-called OSD boards chipboard, MDF boards and similar boards, gas concrete, concrete, brick, plasterboard, etc.

The mold and / or back wall may be supportive for floor decks and / or roof construction or the exterior walls may comprise a supporting skeleton of posts of concrete, reinforced concrete, wood, metal, including steel or light metal, such as aluminum or the like. The supporting skeleton will be lined with a facade material of the prior art which constitutes the cladding of the outer wall, and an inner wall, for example in the form of a plasterboard cladding or similar materials normally used as interior wall cladding in a building.

In post-insulation of buildings, it is usually desirable to carry out post-insulation on the exterior of the building in order to avoid a reduction of the indoor area.

Today, this post-insulation is carried out e.g. by manually installing vertical posts and transverse beams on the building's climate screen, e.g. of wood or metal. In between, the insulation material is placed, and on the exterior is applied facade cladding, which forms the building's new climate shield, possibly. along with an underlying sheet or foil coating.

However, this way of post-insulating is time-consuming, as it is necessary to measure the distances between posts or the other. beams, and whether these are mounted respectively. vertical or horizontal, etc. for each post or beam attached to the outer wall. Then the insulation and the climate shield must also be mounted.

Eg. from patent application US 2014250828 A1 it is known to make a post insulation system that addresses this problem. But this system is still difficult to assemble and especially difficult to install properly on an existing building.

The traditional methods of post-insulation require the use of craftsmen with great professional competence. There is a risk that the various elements used in the construction of the building do not fit together properly, and thus there is a risk of costly adjustments and the risk of leaks where water penetration can occur.

As this work is done outdoors on the existing building, the work is sensitive to bad weather on the construction site. Periods of bad weather will require construction site coverage or will increase construction time before work is completed, which in both cases increases the cost of post-insulating the construction site.

Thus, for several years there has been a desire to rationalize the process of post-insulation of existing buildings to avoid these risks and at the same time work with a more modular system to rationalize the post-insulation process and thereby save costs. At the same time, it is a desire to be able to use several elements that are prefabricated and that are easy to assemble, either at the factory or alternatively at the construction site prior to attaching to the building's exterior walls.

The object of the invention

The object of the invention is to provide a system for facade renovation and / or post-insulation, in particular exterior post-insulation of a building suitable for prefabrication in modules, is constructed in a light structure where the insulation layer can be built up in thicknesses which exactly correspond to the energy class that the developer wants.

It is also intended to provide a post-insulation system in which prefabricated modules for post-insulation of a building are easily and quickly mounted on an existing exterior wall of a building, as other modules can be placed without having to measure the location of each element when the location of the first and the bottom row of modules is first measured and attached to the outer wall.

Further, the object of the invention is to minimize cold bridges and that the system for post-insulation, especially exterior post-insulation, of a building therefore meets national and any international requirements for heat loss of buildings.

In addition, we want to achieve: maximum heat accumulation capacity, low weight, optimized thickness, high density after installation and high production friendliness, where most work is done under roof at the factory.

It is a further object of the whole element manufacture that it is rational (short production time) and that different variants of the elements can be easily manufactured with small production changes.

Description of the Invention

This is achieved according to the present invention with a modular system of the type mentioned initially, characterized in that the bottom surface and the top surface comprise a first rail profile for a front wall and a first rail profile for a rear wall of a module, which first rail profile comprises a profile, preferably a U-profile or an angular profile, with a horizontal flange in use and at least one in-use vertical flange - each post comprises a different rail profile, which is arranged between the first rail profiles in the front wall or the back wall, which second rail profile comprises a U-profile with two opposing flanges arranged in parallel planes and interconnected by a central flange, - the bottom surface and the top surface are each formed by a third rail profile which includes a backing to which the first rail profile for the wall and the first rail profile for the rear wall is fixed and the front of the third rail profile comprises one or more tracks and one or more protuberances extending parallel to the longitudinal direction of the third rail profile, the shape of the cross-section of a projection being similar to the shape of the cross-section of a groove, and that grooves and projections being positioned on the front so that a groove on a third rail profile may engage a groove on another corresponding third rail profile on another module.

The profiles are made in advance and in well-defined lengths, depending on the size of the module (s) to be manufactured. Long profiles can be composed of several profile units, for example to form a sufficiently wide module, so that the new facade, which appears after an exterior insulation or facade renovation of a building, can fulfill the wishes of the builder and / or the architect for the appearance of the building's new facade .

The modules are placed against the outer wall of a building and fastened with brackets to the existing outer wall, e.g. a concrete wall, brick wall or the like.

The modules can be assembled as prefabricated units in a factory with insulation layers as well as wind and water repellent cladding, so that they simply need to be fixed against the outer wall of the existing building at the construction site. As a result, the time spent on the construction site is significantly reduced, which reduces the total cost of the building renovation. In addition, assembly of the modules at the factory is independent of the weather at the construction site, which increases the certainty that the building renovation does not exceed the set deadlines due to bad weather.

Insulation, wind and water repellent climate shield and / or exterior facade cladding can be installed at the factory or at the construction site, as described in more detail below.

Alternatively, the modules can be assembled at the construction site, which provides an extremely flexible solution with high security of supply, since the supplier or the builder simply has to stock a few different parts in order to produce modules of varying sizes and with varying thicknesses of the insulation layer in the module. It is e.g. it is possible to change the thickness of the insulation layer by simply using a wider or narrower third rail profile without the need to wait for other modules

The width of the third rail profile defines the depth of the module and thus the thickness of the layer of insulation used in the post insulation of the building.

The third rail profile has a backing to which the first rail profile for the front wall and the first rail profile for the rear wall are attached. The front of the third rail profile comprises one or more grooves as well as one or more projections which run parallel in the longitudinal direction of the third rail profile. The shape in the cross-section of a projection spaced from a side edge is similar to the shape in the cross-section of a groove spaced from opposite long side edge of the profile. Slots and protrusions are positioned on the front such that a groove on a third rail profile may engage with a projection on another corresponding third rail profile on a second module, since the third rail profile is mounted at the bottom of a module in one direction and the module in the top of the module is turned 180 degrees and thus mounted in the opposite direction. Thereby, the first end of the third profile at the top of a first module will lie opposite the second end of the corresponding profile at the bottom of the next module which is placed on top of the first module. This reduces the number of different profiles as it is only necessary for the factory or construction company / builder to have variants of the third rail profile, which have different widths corresponding to the insulation layer specifications to be used in the post-insulation of the individual buildings.

The projections in the third rail profile preferably have a top surface which is parallel to the opposite side surface of the rail profile. The sides of the projections are inclined or perpendicular to the surface or with an inclined and perpendicular side surface. The shape of the grooves corresponds to the shape of the corresponding projection. For multiple rows of grooves and projections, grooves and projections may be formed with the same or different shape.

Thus, because the modules are made up of the same type of rail rail profiles, it is possible to use the same rail profiles for variants of modules with varying specifications, such as insulation capacity, surface materials, and / or of varying height, width and depth.

Since the rail profiles can be formed in advance, it is also possible to package these in sets containing the number and combination of rail profiles to be used for a predefined number of modules for post insulation and / or facade renovation of a current building. Alternatively, standardized packages of materials can be packed into a module of a predefined size.

With the system according to the invention, a significantly increased security is obtained for correct assembly without the need for separate craftsmanship.

The rail profiles can be assembled with traditional fasteners such as screws, rivets and the like. Alternatively, the rail profiles are assembled with systems based on mechanical cold deformation of the metal, also called clinching. In mechanical cold deformation, two or more plate-shaped metal layers are joined by performing a local cold deformation of the metal layers with a special tool, whereby these are joined. Mechanical cold deformation can be used to join steel and stainless steel together with aluminum and / or non-ferrous materials based on a cost-effective and environmentally friendly process. An example of such systems is e.g. so-called spot clinching ® from Attexor Clinch Systems SA in Switzerland.

Since the rail profiles are preferably provided with connecting means which are used for interconnecting rail profiles, a predefined positioning of the connecting means will ensure that a correct interconnection of the rail profiles also takes place.

Alternatively, the rail profiles may include markings for mounting rails at fixed intervals when the above clinching is used.

Thus, vertical posts placed between a bottom surface and a top surface will be positioned at well-defined distances. In this way, the position of the posts is determined and the distance between the bottom rail and the top rail will also be determined from the length of the posts.

The connecting means are preferably pre-formed holes in the at least one flange and / or tab of the rail profile, which are perpendicular to the bottom flange of the first and / or second rail profile, as described further below. The connecting means are preferably located at predefined distances which, in addition to acting as attachment for other rail profiles in the system, also define the distances between two neighboring columns, beams, etc. Thus, the connecting means are e.g. formed at a fixed distance of e.g. 200-800 cm, e.g. for every 300 or 600 mm.

The lower row of modules is placed on a supplementary foundation made therefor or on a series of angular brackets that are measured and fixed in the existing exterior wall of the building, so that the lower edge of the module forms the bottom line of the new outer wall. When a module is positioned correctly, the top surface of the module is attached to the existing exterior wall of the building with an angle bracket. Next, the next row of modules is placed by placing the bottom surface of the next module on the top surface of a module in the first row, etc.

The projections and grooves in the third rail profile at the bottom of the second module thus cooperate with corresponding projections and grooves in the third rail profile at the top of a module in the first row, which ensures correct placement of the modules relative to the second row relative to the second row. the modules in the row below.

This ensures that the modules are easily and quickly placed correctly on the module below, and that no intermediate measurements are required between mounting the individual rows of modules.

The posts in the front wall and the back wall of the module are preferably set relative to each other, which prevents cold bridges in the wall.

In addition, preferably one or more horizontal beams are mounted between two adjacent posts in the front wall and / or the rear wall, which comprises a fourth rail profile comprising two opposing flanges arranged in parallel planes and interconnected by a central flange, the first of the opposing flanges is arranged for mounting the rear wall against the wall of the existing building or for mounting exterior cladding on the front wall.

This provides stability in the modules and deflection in the walls is completely reduced or eliminated.

When a construction is made with a bottom rail and top rail and interposed posts, horizontal beams in the form of the fifth rail profile can be placed outside on vertical posts. These fifth rail profiles are used on the outside of the module for mounting the outer covering. Thus, a module according to the invention will be made with front wall and rear wall.

Insulation is placed in the space between the front wall and the back wall, as well as wiring and cables for installation in the building, if necessary. The insulation may be in plate form, e.g. of mineral wool, including rock wool or glass wool, foamed polystyrene or similar commonly used plate-shaped insulating materials. When plate-shaped insulation is used, it will preferably be mounted before attaching the wind and water-repellent climate shield to the outside of the module. It is also possible to add the insulation by supplying the modules. In this case, the wind and water repellent climate shield will be mounted on the modules after they are attached to the angle bracket below or to the module mounted below. Next, the insulating material is blown into one module or several modules in a row at the same time.

The third rail profile is made of a high strength and low λ value screw-resistant sheet material. The shape stability and strength of the sheet material contribute to the stability of the assembled modules. In addition, the good insulation properties of the sheet material, ie. low thermal conductivity, as expressed at a low λ value, helps to reduce or eliminate the risk of cold bridges in the wall. This is partly due to the fact that the third rail profile insulates the connection between the skeleton of rail profiles in the modules and the angle brackets which attach the modules to the existing outer wall. Thereby, a cold bridge cannot be created through the modules.

The third rail profile is preferably equipped with recesses for angular brackets. These recesses are perpendicular to the grooves and projections and are located at predefined spacing. The depth of the recesses is adapted to the angular brackets used to attach the modules to the exterior wall of the building, so that the depth of the recesses measured from the bottom surface of the grooves corresponds substantially to the thickness of the angular brackets.

Foamed PVC in sheet form is suitable as material for the third rail profile, as it has good insulation properties and low thermal conductivity, low combustibility, high strength and low weight and also does not absorb significant amounts of moisture.

Grooves and projections in one surface of the third rail profile are made by extruding the rail profile into the desired shape and cutting them to appropriate lengths or alternatively by cutting and possibly adjusting the length and / or width of a pre-made plate.

The second rail profile and / or the fourth rail profile is preferably a U-, H- or Z-shaped profile, with the U-profile being the preferred one. In posts and beams, the rail profile has two parallel side surfaces, which in a post or beam contribute to the stability, which means that the profile can be manufactured in lower thickness without reduced stability. In addition, it is possible to use the outermost of the two parallel side surfaces on the posts as an anchorage for mounting wind and water-repellent climate shield and / or facade cladding and / or additional profiles bearing the facade cladding. In addition, it is possible to attach frame profiles for mounting doors and windows in the side surfaces.

Preferably, first, second and fourth rail profiles are similar rail profiles, preferably U profiles, which are made with a crease of at least one or preferably both ends of the rail profile to reduce the dimensions of the rail profile end regions.

This ensures that one end of a rail profile may engage the aperture of another rail profile and subsequently be secured, e.g. with rivets, screws, blind rivet nuts and associated bolts, blind rivet bolts or similar commonly used fasteners in the construction industry.

Alternatively, the rail profiles are provided with connecting means which are used for interconnecting rail profiles which include a tab which is bent to a perpendicular position with respect to the flange in which the tab is cut. This predefined positioning of connecting means also ensures that a proper interconnection of the rail profiles.

Thus, vertical posts placed between a foot rail and a top rail will be placed and secured in connection with tabs on the foot rail and the top rail. Hereby, the position of the posts is determined and the distance between the bottom surface and the top surface of the modules will also be determined from the length of the posts. The posts may thus be secured tab on the bottom or top rail with traditional fasteners or with a resilient tab which may engage a hole in the first tab of the bottom rail or top rail. This will result in a very quick and simple collection of these elements.

The interconnecting elements are generally intended for temporary retention of the elements during assembly and will therefore be supplemented by a joint or other fixed interconnection of the elements of the finished building.

The resilient engagement between a tab and a hole can be combined with a seam or other type of attachment. However, in several collections, there may be no need to supplement with the fixed interconnection. Thus, the build-up can happen very quickly and the interconnections between rail profiles will have a strength which is defined in advance from the design of the resilient tabs.

The horizontal rails mounted on the exterior of the vertical posts may be mounted in predefined positions, the vertical posts being provided with predetermined spacers arranged to cooperate with corresponding connecting members on the horizontal posts. rails.

Thus, a very uniform positioning of the horizontal rails can be achieved and thus also the facade cladding which is subsequently mounted on the rails.

According to a further embodiment, the system according to the invention is characterized in that posts in the front wall and the back wall are set relative to each other, e.g. in that the posts are preferably mounted in each of the first tabs of the first rail profiles.

With this embodiment, cold bridges are removed in the wall structure. Because there are gaps between the front wall and the back wall, and posts that are in the gap between the front wall and the back wall are set for each other, the risk of cold bridges is reduced.

It is preferred that the top rails and bottom rails are made identically. Hereby, first tabs are provided which have a distance corresponding to the distance between two subsequent posts which are in the front wall and the rear wall respectively. Thus, the posts alone need to be placed in each of the first tabs.

Alternatively, a longer distance may be provided between the tabs corresponding to the distance between the posts in the front wall and the distance between the posts in the back wall. This merely ensures that the bottom rail and the top rail are placed in such a way on the third rail profiles that the first tabs in the rail profile for the front wall are set in relation to the tabs in the first rail profile for the rear wall.

According to a further embodiment, the system is characterized in that the first tab is formed of a punched portion of the horizontal flange and that the first tab is connected to the horizontal flange along a bending line and is bent to a position perpendicular to the horizontal flange. By forming the tab as a punched portion of the horizontal flange, a particularly convenient manufacture is obtained. There is thus a material saving and at the same time the need for loose tabs is avoided, which must be connected to the first rail profile. The first tab is bent around a bending line in the horizontal flange so that it is perpendicular to the horizontal flange. Hereby, the tab will face down depending on whether the first rail profile is used for the foot strap or for the roof strap.

According to a further embodiment, the system is characterized in that the hole in the first tab is a rectangular hole. By having the hole rectangular, a secure engagement is obtained with a tab which also has a rectangular shape. In this way, positioning in the lateral direction is achieved by dimensioning the tab so that it has a width that fits into the width of the rectangular hole.

According to a further embodiment, the system is characterized in that the second tab in the second rail profile is S-shaped and arranged to engage the hole in a first tab. With an S-shape on the first tab, a resilient effect is obtained in a particularly simple manner. When the S-shape is partially bent out of the plane from the flange, it will be able to bend to such a position as to establish a greater or less spring force and thus secure engagement.

According to a further embodiment, the system is characterized in that the second tab is formed of a punched portion of the central flange of the second rail profile and that the second tab is connected to the central flange along a bending line and is bent to a position outside of it. central flange. In the second profile, the most important factor is that two opposing flanges are placed. Thus, the profile may have different profile shapes, the flange element connecting the two different flanges being centrally, at an angle or at one side.

The module system can also be assembled by having the two opposing flanges of the second rail profile for the posts comprise, at predefined spacing, connecting means for cooperating with corresponding connecting means on the horizontal beams of the fourth rail profile.

Since the second rail profile used for the posts is provided with connecting means having a predefined spacing, it is possible to position the horizontal beams with the distance corresponding to the spacing between the connecting members or alternatively by placing the horizontal beams between each other or third connecting member in a vertical post.

This ensures proper mounting of the horizontal beams. The connecting means used between the horizontal beams and the vertical posts may be of the type described in the pending patent application and filed by the same inventor as in the present invention.

The modular system can be adapted to the existing building by fixing horizontal frame profiles for posts for windows and doors in the wall structure. This makes it possible to install door and window openings to fit the door and window openings already in the building. These door and / or window frames can be covered with wind and water repellent climate screens and subsequent facade cladding or windows, and / or doors from the building can be moved from the exterior wall of the existing building to the frame profiles of the modules depending on the appearance desired on the facade after the renovation. In addition, it is possible to mount windows or doors in the frame profiles prior to mounting the modules on the exterior wall of the building. This provides quick finishing of the exterior climate screen on the building, and subsequent finishing work on doors and / or windows can be done from the inside.

According to a further embodiment, the system is characterized in that on first posts a first angle bracket is fixed for fixing horizontal frame profiles for mounting windows and doors in the wall structure, the first angle bracket comprising coupling means which cooperate with corresponding coupling means at the end of the horizontal frame profile. .

As windows and doors will often require special frames, it is advantageous to have angular brackets on the posts. For this, horizontal frame profiles can be attached, which are used at the top or bottom of a window or door. This first angular bracket has coupling means which cooperate with corresponding coupling means at the end of the horizontal frame profile.

It is preferred that the horizontal frame profiles be identical to the second rail profile. Thus, the profiles may be provided with holes corresponding to the holes in the second tab of the second rail profile. Hereby, the first angular bracket will advantageously be provided with resilient lugs which are intended for engagement in the holes of the horizontal frame profiles.

An inverted construction where the tabs are part of the horizontal frame profiles and the holes provided on the angle brackets is also possible.

Although it is easy for the resilient lugs to be placed on a central flange, it will also be possible to place the resilient lugs on two side flanges in a U-shaped profile. Thus, a coupling can be obtained where there is greater strength, since more tabs can be used for the coupling of rail profiles, whether the first, second or fourth rail profile.

Between two horizontal frame profiles or two horizontal beams, it is possible to mount at least one vertical frame profile for mounting windows and doors. This allows the installation of windows and doors that have less width than the distance between two posts in the wall structure. For example, the vertical frame profile is mounted a horizontal frame profile with a second angular bracket for attaching the vertical frame profile, the second angular bracket comprising coupling means which cooperate with corresponding coupling means at the end of the vertical frame profile.

In order to be able to mount windows or doors having a smaller width than the distance between two subsequent posts in the wall structure, at least one vertical frame profile is arranged between two superimposed horizontal frame profiles.

Alternatively, a vertical frame profile may also be located between a horizontal frame profile and a top rail or a bottom rail. This depends on where the building opening is located. A second angle bracket is mounted on the second frame profile to which the vertical frame profile can be attached. Preferably, the second angle bracket will be of a C shape or hook shape so that it can be pivoted over the horizontal frame profiles and displaced along them. This makes it possible to adjust the size of the wall opening formed in the wall structure. The second angular bracket comprises coupling means which cooperate with corresponding coupling means in the vertical frame profiles.

Character description

The invention will now be described with reference to the drawings, in which:

FIG. 1 shows a module for the facade renovation and / or post-insulation of an existing building according to the invention, wherein the module is attached to an exterior wall of a building, seen in perspective. Figures 2a-2c show different sections of the module in fig. 1

Fig.3-4 shows mounting brackets for modules attached to an existing exterior wall of a building

Figures 5a-5b show mounting of angle brackets at the top surface of the module for attachment to the existing external wall of the building

Figures 6a-6b show the placement of a further row of modules on top of an already mounted first row of modules.

Figures 6c-6d show the connection between third rail profile at the top of a first module and at the bottom of a second module

Fig. 7 shows the mounting of the mounting rails for facade cladding

FIG. 8a-8b show a variation of mounting rails for facade cladding. 9 shows alternative angle mounting brackets for first row of modules and variants of first and second rail profile and the assembly between these Fig. 10 shows a principle with a module in which a front wall and a rear wall are mounted on the third rail profile with offset posts Fig. 11a shows a detail of mounting a post on a bottom rail or top rail and an enlarged view, partially in section, through the one shown in FIG. 1a,

FIG. 12 shows a principle for forming an opening for mounting windows in the wall structure constructed with a system according to the invention,

FIG. 13 shows details of the embodiment of FIG. 12, and FIG. 14-16 show further details of mounting the frame profiles shown in FIG. 12 and 13.

DETAILED DESCRIPTION OF THE INVENTION In the following, the invention is described in more detail with reference to various figures in which identical or similar elements have been given the same reference numerals. Thus, not all structural elements will be explained in detail in connection with each figure.

FIG. 1 shows the exterior wall 10 of a building which is post-insulated and facade renovated with a module 11 according to the system of the invention. The system modules comprise a front wall 12a which forms the new outer wall of the building and a rear wall 12b which is positioned against the building's former outer wall 10. The module has a bottom surface 13, a top surface 14, vertical posts 15 located between the bottom surface 13 and the top surface. 14. The module further comprises horizontal beams 16. These elements are used to produce the sandwich construction of the modules. The modules are placed on a first set of angle brackets 18a, placed at the bottom of the building's outer wall 10 or at the top of the building's foundation and attached to the angle brackets with fasteners, e.g. those mentioned above. The rear wall 12b is placed against the outer wall 10 of the building. Along the upper edge of the module is placed another set of angle brackets 18b, see Figure 2-4, which attaches the upper end of the modules to the outer wall 10 of the building.

Between the angular brackets 18a, 18b and the outer wall, an insulating block 23 is placed to prevent a cold bridge from occurring. The insulating block is preferably screw-resistant expanded plastic material, e.g. PVC, which sold under the name Vikupor.

In FIG. 1, the posts are shown in parallel position, but are preferably positioned relative to each other to reduce cold bridges.

In FIG. 2a-2c there is a more detailed view of the structure of the modules 11.

Instead of placing the modules on a first set of angle brackets 18a, see FIG. 3 or 9, an additional foundation (not shown) can be made parallel to the existing foundation of the building, e.g. in connection with exterior insulation of a basement floor. The base consists of e.g. foundation blocks, which are preferably provided with insulation of expanded polystyrene sheets, EPS, (also called flaming sheets) between outer and inner foundation blocks 4. If foundation is used, a moisture barrier will be placed on top of the base. This is preferably EPDM rubber membrane. It preferably has a thickness of 5 mm.

The bottom surface 13 comprises a first rail profile 19a provided in the form of a U-shaped steel profile. A first rail profile 19a is provided at an outer wall 12a and at a rear wall 12b.

In the first rail profiles 19a, 19b for outer and rear wall blocks 12a, second rail profile 20 constituting the posts of the walls 15 is mounted. The vertical posts 15 are formed by a second rail profile 20. The second rail profile 20 is arranged between a first rail profile in bottom surface 13 and top surface 14 of outer wall 12a and rear wall 2b of module 11.

Horizontal beams 16 are mounted between the posts 15 in the inner wall and the outer wall in the form of a fourth rail profile 22.

Insulation material is placed between the outer and the back wall in the layer thickness prescribed by the developer and / or legislation / regulations.

Preferably, first 19a, 19b, second 20 and fourth 22 rail profiles are similar U-profiles made with a crease of at least one end or preferably both ends of the rail profile to reduce the dimensions of the rail profile end regions so that one end of a rail profile can engage the opening between the parallel side walls of another U-shaped rail profile.

As seen in FIG. 7, 8a-8b, the outer wall 12a is provided with an outer covering 12c. The outer covering 12c may e.g. choose between slate, (painted) aluminum, facade stone, etemite and / or other facade coatings that are desired to be used.

In the embodiment shown in Figure 1-8, a power board 12c has been used as water and wind repellent outer covering.

Figures 6a-6d show how the modules are positioned relative to one another on an outer wall 10 of an existing building by facade renovation and / or post-insulation of the building. The front side of the third rail profile 21 comprises one or more grooves 24 and one or more projections 25 which extend parallel to the longitudinal direction of the third rail profile. The shape in the cross-section of a projection 25 located at a distance from one side edge of the profile is similar to the shape in the cross-section of a groove 24 located at a distance from opposite long side edge of the profile. The third rail profile 21a is mounted at the bottom of a module 11 in one direction, and at the top of the module, the third rail profile 21b is turned 180 degrees and thus mounted in the opposite direction. Track 24 and projection 25 are therefore located on the front of third rail profile 21, so that groove 24 in third rail profile 21a may engage a projection 25 on a second corresponding third rail profile 21b on a first module 11a, thereby providing the first end of the third profile 21b at the top of a first module to face the second end of the corresponding profile 21a at the bottom of the next module 1b placed on top of the first module 11a. This reduces the number of different profiles, since it is only necessary for the factory or construction company / builder to have variants of the third rail profile 21, which have different widths corresponding to the insulation layer specifications to be used in the post-insulation of the individual buildings.

The projections 25 in the third rail profile 21 have a top surface which is substantially parallel to the opposite side surface of the rail profile 21. The sides of the projections are inclined or perpendicular to the surface or having an inclined and perpendicular side surface. The shape of the grooves 24 corresponds to the shape of the corresponding projection. At several rows of grooves 24 and protuberances 25, grooves 24 and associated protuberances 25 may be formed with the same or different shape relative to other grooves 24 with protuberances 25.

The third rail profile 21 is preferably made of insulating screw-resistant expanded plastic material, e.g. PVC, which sold under the name Vikupor.

The facade cladding 12d is mounted with mounting rail profiles 27, see Figures 8a, 8b.

This fifth rail profile 27 is e.g. a U-profile with mounting flanges mounted outside the vertical posts 15. Alternatively, this mounting rail profile is Z-shaped 28 and is preferably mounted horizontally on the outer wall posts 15. The mounting rails are preferably made of aluminum or steel profiles.

Figures 9-11 show an alternative rail system where the second rail profiles 20 'are located on the first rail profiles 19'. The first rail profiles 19 'are provided with tabs 30 spaced at a predefined distance. The first rail profile 19 'is formed as an L-shaped profile with a vertical flange 31 and a horizontal flange 32. The flaps are formed by a punched portion of the horizontal flange which is folded along a bend line 33 from the horizontal flange 32, so that it is substantially perpendicular to the first flange 32. The tabs 30 are used for mounting the second rail profile 20 '.

FIG. 11a and 11b show more clearly how a tab 30 is bent out of the plane of the horizontal flange 32. The tab 30 is provided with a hole 34. The hole 34 serves to receive an elastic resilient tab 38 in the second rail profile 20 '.

The second rail profile 20 'comprises two opposing flanges 35, 36, which are interconnected by a central flange 37, so as to form a U-shaped profile. The tab 38 is punched and extruded from the central flange 37.

The tab 38 has an S-shaped configuration such that a central portion of the tab is resiliently pressed into the hole 34 as the second rail profile 20 'is pressed into abutment against the first rail profile 19'. This establishes a mutual holding and correct positioning of the two rail profiles. This interlocking ensures a secure fixing during the installation of the building. Subsequently, the two rail profiles will be permanently attached to each other, for example, by nailing with a gas gun or by riveting or with other suitable permanent connections between the two rail profiles.

FIG. 12 and 13 show how a window opening 39 or doorway is formed in a building structure. FIG. 14 and 15 show details of this window opening.

It will be seen here that on the second rail profile 20 a first angular bracket 40 is attached thereto. A horizontal frame profile 41 is attached thereto. The frame profile 41 is mounted at an angular bracket 40 at each end, the angular bracket having an elastic resilient tab 38 corresponding to the tab. shown in FIG. 5 and 6. The resilient resilient tab 38 cooperates with a hole 34 punched into the horizontal frame profile 41 at the end of this frame profile 41.

Between two horizontal frame profiles 41, at least one vertical frame profile 42 is provided for defining a window opening or door opening having a smaller width than the distance between two subsequent other rail profiles 20 which constitute the posts of the wall structure.

On the horizontal frame profile 41, as shown in FIG. 16, a second angular bracket 44 is mounted. This is displaceable longitudinally of the horizontal frame profile 41. The angular bracket 44 has a first flange 45 for engagement with the underside of the frame profile 41 and an intermediate flange portion 46 which engages the side of the frame profile 41 as well as a third flange portion 47 which is intended to abut at the top of a frame profile or the underside of a frame profile, respectively, depending on whether the frame profile is located at the upper or lower end of a vertical frame profile 42. In the third flange portion 47 there is a folded part 48, in which an opening 49 is provided. The opening 49 serves to cooperate with an elastic tab 38 from the vertical frame profile 42. The second angle bracket can be displaced to a desired position depending on the width of the window opening desired to be established.

The first angular bracket 40 can be displaced in the height direction along the second rail profile 20 so that the horizontal frame profile 41 is placed at a desired height.

After the temporary fixing, the elements can be permanently fixed to one another by nailing with a gas gun, riveting or with other permanent attachment.

Alternatively, the tabs and gaps in the profiles are omitted and U-profiles with creases at one or both ends, as described above, are used for the vertical and / or horizontal frame profiles for doors and / or windows. Instead, blind-cut nuts are mounted in the rail profiles, which cooperate with holes in the profiles, and the profiles are then screwed together with bolts or screws which engage the threaded nuts, as described for the U-profiles above.

Claims (10)

A post-insulation and / or facade renovation module system for facade renovation and / or post-insulation of an existing building, wherein a module (11) comprises a bottom surface (13), a top surface (14) and vertical posts (15) between the bottom surface (13) and the top surface (14), characterized in that - the bottom surface (13) and the top surface (14) comprise a first rail profile (19a) for a front wall (12a) and a first rail profile (19b) for a rear wall (12b) in a module (11) said first rail profile (19) comprising a profile, preferably a U-profile or an angular profile, with a horizontal flange (32) in use and at least one vertical flange (31) in use, - each post (15) comprising a second rail profile (20) arranged between the first rail profiles (19a, 19b) in the front wall (12a) or the rear wall (12b), the second rail profile (20) comprising a U-profile with two opposite flanges (36) disposed in parallel planes interconnected by a central flange (37), - the bottom surface (13) and the top surface (14) each is formed by a third rail profile (21) comprising a backing to which the first rail profile (19a) for the front wall (12a) and the first rail profile (19b) for the rear wall (12b) are attached, and the third the front of the rail profile comprises one or more grooves (24) and one or more projections (25) which extend parallel to the longitudinal direction of the third rail profile, the shape of the cross-section of a projection (25) being similar to the shape of the cross-section of a track (24). and that grooves (24) and projections (25) are positioned on the front such that a groove (24) on a third rail profile (21) can engage a groove on another corresponding third rail profile (21) on another module (11). Module system according to claim 1, characterized in that posts in the front wall (12a) and the back wall (12b) are set relative to one another. Modular system according to claim 1 or 2, characterized in that one or more horizontal beams (16) are mounted between two adjacent posts (15) in the front wall (12a) and / or the rear wall (12b), in the form of a fourth rail profile ( 22), comprising two opposed flanges arranged in parallel planes and interconnected by a central flange, the first of the opposing flanges being arranged for mounting the rear wall (12b) against the wall (10) of the existing one. building or mounting exterior cladding (12c) on the front wall (12a). Module system according to any one of claims 1-3, characterized in that the third rail profile (21) is made of a high strength and low λ value screw-resistant sheet material. Module system according to any one of claims 1-4, characterized in that the second rail profile (20) and / or the fourth rail profile (22) is a U-, H- or Z-shaped profile. Module system according to any one of claims 1-5, characterized in that the first (19), second (20) and fourth rail profile (22) are similar rail profiles, preferably U-profiles, which are manufactured with a curvature of at least one end. or preferably both ends of the rail profile to reduce the dimensions of the end regions of the rail profile so that one end of a rail profile may engage the opening in another rail profile. Module system according to any one of claims 1-6, characterized in that the two opposing flanges (35) in the second rail profile (20) comprise, at predefined, spaced-apart connection means, for co-operation with corresponding connecting means on the fourth rail profile (22). Module system according to any one of claims 1-7, characterized in that horizontal frame profiles (41) for mounting windows and doors in the wall structure are mounted on posts (15). Modular system according to claim 8, characterized in that at least one vertical frame profile (42) for mounting windows and doors is mounted between two horizontal frame profiles (41). Modular system according to claim 9, characterized in that an angular bracket (44) is mounted on a horizontal frame profile (44) for attaching the vertical frame profile (42), the angular bracket (44) comprising coupling means cooperating with corresponding coupling means in the end of the vertical frame profile (42).