EP4662377A1 - Improved external wall structure for thermal and/or acoustic insulation of buildings - Google Patents

Improved external wall structure for thermal and/or acoustic insulation of buildings

Info

Publication number
EP4662377A1
EP4662377A1 EP24716458.5A EP24716458A EP4662377A1 EP 4662377 A1 EP4662377 A1 EP 4662377A1 EP 24716458 A EP24716458 A EP 24716458A EP 4662377 A1 EP4662377 A1 EP 4662377A1
Authority
EP
European Patent Office
Prior art keywords
external wall
vertical
multilayer coating
external
anchored
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24716458.5A
Other languages
German (de)
French (fr)
Inventor
Michele Farina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4662377A1 publication Critical patent/EP4662377A1/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E04F13/0805—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall
    • E04F13/0807—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall adjustable perpendicular to the wall
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
    • E04F13/083—Hooking means on the back side of the covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer

Definitions

  • the present invention finds application in the field of building materials and buildings and particularly relates with an improved external wall structure adapted for cladding operations on the external walls of buildings for their thermal and/or acoustic insulation.
  • the known claddings comprise one or more special panels applied directly against the external wall to be insulated or with an appropriate distance to create a gap between the cladding and the wall of the building.
  • the cladding structure is commonly defined as a ventilated wall.
  • dry-positioned coverings involve the application of different layers with different functions, such as thermal and/or acoustic insulation or simple aesthetic function.
  • the insulating materials currently in use are typically polystyrene materials, rock wool and similar, as they are relatively economic and easy to apply.
  • heat-reflecting materials with high energy efficiency and reduced thicknesses compared to known solutions are increasingly being used on the market.
  • These materials are made up of a plurality of layers of different materials, such as pure aluminium, aluminised films, wadding and sheets of expanded polyethylene.
  • this solution through the use of particular fixing plugs, allows holes to be created in the multilayer covering following the application of the latter by pressure on the fixing plugs themselves, thus solving the anchoring problem of this kind of multi-layer coverings which cannot be drilled using a drill or similar means.
  • the object of the present invention is to overcome the above drawbacks by providing an improved external wall structure for the thermal and/or acoustic insulation of buildings which has properties of high efficiency and relative cost-effectiveness.
  • a particular object is to provide an external wall structure for the thermal and/or acoustic insulation of buildings which contributes to improving the stability of the existing masonry.
  • Yet another particular object is to realize an external wall structure for the thermal and/or acoustic insulation of buildings which contributes to avoiding the overturning of the non-structural elements constituting the cladding.
  • Yet another particular object is to realize an external wall structure for the thermal and/or acoustic insulation of buildings which allows the use of the latest generation heat-reflecting materials in a particularly efficient manner and giving high thermoacoustic insulation characteristics to the structure.
  • an improved external wall structure for the thermal and/or acoustic insulation of buildings which, according to claim 1, comprises a multilayer coating suitable for covering the external wall of a building to increase its thermal and/or acoustic insulation characteristics, means for anchoring said multilayer coating to the external wall having a plurality of fixing elements each provided with a dowel suitable for being fixed in the external wall of the building and a pin insertable into said dowel to protrude from the external wall, a load-bearing frame for an external covering panel and having a vertical support structure anchored to said fixing elements, spacing means suitable to be placed between said multilayer coating and the external wall to maintain said multilayer coating spaced from the latter and defining at least a first gap between said external covering panel and the external wall and wherein the load-bearing frame comprises an anti-overturning reinforcement structure integral with said vertical support structure and suitable of being arranged between said vertical support structure and the external wall of the building.
  • the presence of the anti-overturning reinforcement structure will allow to have a counter-wall structure having the stiffness, resistance and mass requirements necessary to actively contribute to increasing the capacity of the non- structural construction elements of existing reinforced concrete buildings, such as external infills, also increasing the resistance to seismic actions to avoid the typical problems of inadequacy of these elements in response to seismic action, absorbing any seismic stress and thus allowing the achievement of the minimum safety levels expected by law.
  • FIG. 1 is a sectional side view of the structure
  • FIG. 2 is a front axonometric view of the structure of Fig. 1 partially covered by the external covering.
  • an external wall structure suitable for covering the external wall of a building to achieve thermal and/or acoustic insulation or to increase its thermal and/or acoustic insulation characteristics is illustrated.
  • the structure indicated overall with 1, essentially comprises a heat-reflecting coating 2 having a thermal and/or acoustic insulating properties and suitable for covering the external wall P of a building, anchoring means 3 for anchoring the heat-reflecting coating 2 to the external wall P, spacing means 4 suitable to be placed between the heat-reflecting coating 2 and the external wall P to keep the heat-reflecting coating 2 distanced from the latter and define a first gap 5 at rest, as required by the regulations, inside which the heat-reflective coating 2 is placed .
  • the heat-reflective coating 2 may be a single layer or defined by a plurality of layers, even in different materials, with the external layers being made of heat-reflecting materials, such as aluminum or its alloys or aluminum- based materials and similar, possibly coupled with a reinforcing mesh.
  • the multilayer heat-reflective coating 2 may be available on the market and also have 19 layers in different materials, such as pure aluminium, aluminised sheets, wadding and expanded polyethylene sheets.
  • multilayer external covering panel 7 which comprises, from the outside towards the inside, a pigmented base 21 with thick coating, a layer of cement mortar 22 with glass fiber mesh, a lightweight and fixative fiber cement sheet 23.
  • the multilayer external covering panel 7 may also be provided with one or more ventilation openings 24.
  • the counter-wall structure 1 also comprises a load-bearing frame 6 adapted to support the external covering panel 7 and which is placed on the opposite side of the heat- reflecting covering 2 with respect to the spacing means 4.
  • the anchoring means 3 are defined by a plurality of fixing elements each having a dowel 8 suitable for being fixed in the external wall P of the building and a pin 9 which can be inserted into the dowel 8 to protrude from the external wall P with a predetermined length which can be selected according to the properties and dimensions of the multilayer coating 2, as well as of the load-bearing frame 6.
  • the dowels 8 will be screwable onto the threaded bars of the corresponding pins 9 with adjustable depth to locally vary the distance of the coating 2 from the wall P.
  • Each pin 9 may be made up of a threaded bar, for example a double threaded screw, having a pointed free end suitable for making a corresponding hole in the multilayer coating 2 upon the application of the latter by pressure on the anchoring means 3, thus solving the problem of anchoring this type of multilayer covering which cannot be drilled using a drill or similar means.
  • the spacing means 4 will comprise a plurality of spacer elements 10 suitable for being inserted onto respective pins 9 inside the coating 2, upon the application of the latter on the anchoring means 3, with the interposition of a first washer 11, for example a wide band washer of the M10*40mm type, arranged between the wall of the building P and the spacer element 10, and a second washer 12, for example a band washer of the M8*24mm type, arranged on the spacer element 10.
  • a first washer 11 for example a wide band washer of the M10*40mm type
  • a second washer 12 for example a band washer of the M8*24mm type
  • Each spacer element 10 may be made by a pair of nuts screwed onto a respective pin 9, a first nut 14 of which having an adjustment function and a second nut 16 having a fixing function.
  • the configuration of the spacing means 4 is only one of the preferred configurations and is not to be understood as exclusive.
  • the load-bearing frame 6 is anchored to the heat-reflecting coating 2 always by the same anchoring means 3.
  • the spacing means 4 may also comprise a plurality of longitudinal members or uprights 13 made of wood, for example mineralized wood wool, suitable for being arranged between the external wall P of the building and the internal side of the coating 2 at the areas free from anchoring means 3, acting as spacers.
  • the load-bearing frame 6 comprises a vertical support structure provided with a plurality of vertical uprights 15, for example in galvanized aluminium, each anchored to the anchoring means 3 with the interposition of spacer elements 10 placed on opposite sides of the respective vertical uprights 15 and may be screwed onto the threaded bar of the respective pin 9 to adjust the inclination of the vertical uprights 15, so as to recover any out-of-plumbness of the wall P of the building.
  • the load-bearing frame 6 also comprises a plurality of horizontal uprights 17, for example in galvanized aluminium, adapted to be anchored to the vertical uprights 15 and suitable for supporting the external covering panel 7 and defining a second gap 18 which can be ventilated or non-ventilated, in this last case the confined air, not being involved by external currents, will also perform an insulating function.
  • the vertical uprights 15 and the horizontal uprights 17 comprise means for mutual snap coupling.
  • the vertical uprights 15 comprise a snap guide defined by a plurality of C-shaped recesses 19 provided with retaining teeth 20 suitable for interacting with widened longitudinal edges 21 of the horizontal uprights 17, so as to block them by interference following their snap coupling.
  • the load-bearing frame 6 comprises an anti-overturning reinforcement structure integral with the vertical support structure and suitable of being arranged between the vertical support structure itself and the external wall P of the building.
  • the reinforcement structure will help to improve the stability of the existing masonry, reinforcing the external wall P, and to avoid the overturning of the non- structural elements, such as a possible masonry infill T associated with the wall P of the building, generally in reinforced concrete, absorbing any seismic stress and thus allowing the achievement of the minimum safety levels required by law.
  • the anti-overturning reinforcement structure will be placed in the first gap 5 and will comprise or be composed of one or more vertical bars 24, for example a vertical reinforcement bar 24 for each vertical upright 15 according to the configuration illustrated in the figures.
  • the vertical bars 24 will have a box-shaped profile with a section of 60x20mm and a thickness of 3mm and will be made of S235 structural steel.
  • Each vertical upright 15 will be made integral with a corresponding vertical bar 24, for example by means of the same fixing element suitable for anchoring the vertical upright 15 to the external wall P.
  • the box profiles of the vertical reinforcement bars 24, anchored to the lower and upper ends of the reinforced concrete inter-storey beams, will give the structure the necessary rigidity, resistance and mass requirements necessary to actively contribute to the increase the capacity of non- structural construction elements of existing reinforced concrete buildings, such as external infills, to resist seismic actions in order to avoid problems of inadequacy of these elements in response to seismic action
  • the use of the multilayer coating will allow considerable advantages from the point of view of energy performance, minimum overall dimensions, adjustability for leveling the facade planes, elasticity with respect to thermal and mechanical deformations, cost-effectiveness compared to other types of insulating dry walls, due to the simplicity and speed of installation.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

An improved external wall structure for the thermal and/or acoustic insulation of buildings comprises a multilayer coating (2), anchoring means (3) of the multilayer coating (2) to the external wall (P), a load-bearing frame (6) for an external covering panel (7) having a vertical support structure (15), spacing means (4) suitable to be placed between the multilayer coating (2) and the external wall (P) to maintain the multilayer coating (2) spaced from the latter and define at least a first gap (5) between the external covering panel (7) and the external wall (P), an anti-overturning reinforcement structure integral with the vertical support structure (15) and suitable of being arranged between the vertical support structure (15) and the external wall (P) of the building.

Description

IMPROVED EXTERNAL WALL STRUCTURE FOR THERMAL AND/OR ACOUSTIC INSULATION OF BUILDINGS
Description
Technical Field
The present invention finds application in the field of building materials and buildings and particularly relates with an improved external wall structure adapted for cladding operations on the external walls of buildings for their thermal and/or acoustic insulation.
State of the art
The use of false walls and insulating coats for the cladding of external walls of buildings with any intended use to increase their thermal and/or acoustic insulation coefficient is known.
Generally, the known claddings comprise one or more special panels applied directly against the external wall to be insulated or with an appropriate distance to create a gap between the cladding and the wall of the building.
In the latter case the cladding structure is commonly defined as a ventilated wall.
Generally, dry-positioned coverings involve the application of different layers with different functions, such as thermal and/or acoustic insulation or simple aesthetic function.
The insulating materials currently in use are typically polystyrene materials, rock wool and similar, as they are relatively economic and easy to apply.
However, particular heat-reflecting materials with high energy efficiency and reduced thicknesses compared to known solutions are increasingly being used on the market. These materials are made up of a plurality of layers of different materials, such as pure aluminium, aluminised films, wadding and sheets of expanded polyethylene.
The known solutions are generally limited by the absence of adequate systems for the installation and fixing of the covering which allow the insulating properties of such heat-reflecting materials to be effectively exploited, in particular due to the very characteristics of the material at certain performance thicknesses and which do not make it drillable with the rotating movement of the drill bit. To overcome these drawbacks, the same Applicant has designed a cladding structure, described in EP3505704, which allows the use of latest generation of heat-reflecting materials in a particularly efficient manner, so as to give high thermo-acoustic insulation characteristics to the structure.
In particular, this solution, through the use of particular fixing plugs, allows holes to be created in the multilayer covering following the application of the latter by pressure on the fixing plugs themselves, thus solving the anchoring problem of this kind of multi-layer coverings which cannot be drilled using a drill or similar means.
This solution, although particularly effective in solving the problems identified above, has proven to be improved in some aspects and in particular in the stability of the coupling between the cladding and the wall of the building.
Scope of the invention
The object of the present invention is to overcome the above drawbacks by providing an improved external wall structure for the thermal and/or acoustic insulation of buildings which has properties of high efficiency and relative cost-effectiveness.
A particular object is to provide an external wall structure for the thermal and/or acoustic insulation of buildings which contributes to improving the stability of the existing masonry.
Yet another particular object is to realize an external wall structure for the thermal and/or acoustic insulation of buildings which contributes to avoiding the overturning of the non-structural elements constituting the cladding.
Yet another particular object is to realize an external wall structure for the thermal and/or acoustic insulation of buildings which allows the use of the latest generation heat-reflecting materials in a particularly efficient manner and giving high thermoacoustic insulation characteristics to the structure.
These objects, as well as others which will appear clearer below, are achieved by an improved external wall structure for the thermal and/or acoustic insulation of buildings which, according to claim 1, comprises a multilayer coating suitable for covering the external wall of a building to increase its thermal and/or acoustic insulation characteristics, means for anchoring said multilayer coating to the external wall having a plurality of fixing elements each provided with a dowel suitable for being fixed in the external wall of the building and a pin insertable into said dowel to protrude from the external wall, a load-bearing frame for an external covering panel and having a vertical support structure anchored to said fixing elements, spacing means suitable to be placed between said multilayer coating and the external wall to maintain said multilayer coating spaced from the latter and defining at least a first gap between said external covering panel and the external wall and wherein the load-bearing frame comprises an anti-overturning reinforcement structure integral with said vertical support structure and suitable of being arranged between said vertical support structure and the external wall of the building.
The presence of the anti-overturning reinforcement structure will allow to have a counter-wall structure having the stiffness, resistance and mass requirements necessary to actively contribute to increasing the capacity of the non- structural construction elements of existing reinforced concrete buildings, such as external infills, also increasing the resistance to seismic actions to avoid the typical problems of inadequacy of these elements in response to seismic action, absorbing any seismic stress and thus allowing the achievement of the minimum safety levels expected by law.
Advantageous embodiments of the invention are obtained in accordance with the dependent claims.
Brief disclosure of the drawings
Further features and advantages of the invention will become more apparent in light of the detailed description of a preferred but not exclusive configuration of a structure according to the present invention, illustrated by way of non-limiting example with the help of the attached drawing tables in which:
FIG. 1 is a sectional side view of the structure;
FIG. 2 is a front axonometric view of the structure of Fig. 1 partially covered by the external covering.
Best modes of carrying out the invention
Referring to the attached figures, a preferred but not exclusive configuration of an external wall structure suitable for covering the external wall of a building to achieve thermal and/or acoustic insulation or to increase its thermal and/or acoustic insulation characteristics is illustrated.
The structure, indicated overall with 1, essentially comprises a heat-reflecting coating 2 having a thermal and/or acoustic insulating properties and suitable for covering the external wall P of a building, anchoring means 3 for anchoring the heat-reflecting coating 2 to the external wall P, spacing means 4 suitable to be placed between the heat-reflecting coating 2 and the external wall P to keep the heat-reflecting coating 2 distanced from the latter and define a first gap 5 at rest, as required by the regulations, inside which the heat-reflective coating 2 is placed .
Preferably but not exclusively, the heat-reflective coating 2 may be a single layer or defined by a plurality of layers, even in different materials, with the external layers being made of heat-reflecting materials, such as aluminum or its alloys or aluminum- based materials and similar, possibly coupled with a reinforcing mesh.
By way of example, the multilayer heat-reflective coating 2 may be available on the market and also have 19 layers in different materials, such as pure aluminium, aluminised sheets, wadding and expanded polyethylene sheets.
There is also a multilayer external covering panel 7 which comprises, from the outside towards the inside, a pigmented base 21 with thick coating, a layer of cement mortar 22 with glass fiber mesh, a lightweight and fixative fiber cement sheet 23.
The multilayer external covering panel 7 may also be provided with one or more ventilation openings 24.
The counter-wall structure 1 also comprises a load-bearing frame 6 adapted to support the external covering panel 7 and which is placed on the opposite side of the heat- reflecting covering 2 with respect to the spacing means 4.
As visible from Fig- 1, the anchoring means 3 are defined by a plurality of fixing elements each having a dowel 8 suitable for being fixed in the external wall P of the building and a pin 9 which can be inserted into the dowel 8 to protrude from the external wall P with a predetermined length which can be selected according to the properties and dimensions of the multilayer coating 2, as well as of the load-bearing frame 6. In particular, the dowels 8 will be screwable onto the threaded bars of the corresponding pins 9 with adjustable depth to locally vary the distance of the coating 2 from the wall P.
Each pin 9 may be made up of a threaded bar, for example a double threaded screw, having a pointed free end suitable for making a corresponding hole in the multilayer coating 2 upon the application of the latter by pressure on the anchoring means 3, thus solving the problem of anchoring this type of multilayer covering which cannot be drilled using a drill or similar means.
The spacing means 4 will comprise a plurality of spacer elements 10 suitable for being inserted onto respective pins 9 inside the coating 2, upon the application of the latter on the anchoring means 3, with the interposition of a first washer 11, for example a wide band washer of the M10*40mm type, arranged between the wall of the building P and the spacer element 10, and a second washer 12, for example a band washer of the M8*24mm type, arranged on the spacer element 10.
Each spacer element 10 may be made by a pair of nuts screwed onto a respective pin 9, a first nut 14 of which having an adjustment function and a second nut 16 having a fixing function.
However, it is understood that the configuration of the spacing means 4 is only one of the preferred configurations and is not to be understood as exclusive.
In turn, the load-bearing frame 6 is anchored to the heat-reflecting coating 2 always by the same anchoring means 3.
The spacing means 4 may also comprise a plurality of longitudinal members or uprights 13 made of wood, for example mineralized wood wool, suitable for being arranged between the external wall P of the building and the internal side of the coating 2 at the areas free from anchoring means 3, acting as spacers.
The load-bearing frame 6 comprises a vertical support structure provided with a plurality of vertical uprights 15, for example in galvanized aluminium, each anchored to the anchoring means 3 with the interposition of spacer elements 10 placed on opposite sides of the respective vertical uprights 15 and may be screwed onto the threaded bar of the respective pin 9 to adjust the inclination of the vertical uprights 15, so as to recover any out-of-plumbness of the wall P of the building.
The load-bearing frame 6 also comprises a plurality of horizontal uprights 17, for example in galvanized aluminium, adapted to be anchored to the vertical uprights 15 and suitable for supporting the external covering panel 7 and defining a second gap 18 which can be ventilated or non-ventilated, in this last case the confined air, not being involved by external currents, will also perform an insulating function.
The vertical uprights 15 and the horizontal uprights 17 comprise means for mutual snap coupling.
In the configuration of the figures, exemplifying but not limiting the invention, the vertical uprights 15 comprise a snap guide defined by a plurality of C-shaped recesses 19 provided with retaining teeth 20 suitable for interacting with widened longitudinal edges 21 of the horizontal uprights 17, so as to block them by interference following their snap coupling.
In a peculiar way, the load-bearing frame 6 comprises an anti-overturning reinforcement structure integral with the vertical support structure and suitable of being arranged between the vertical support structure itself and the external wall P of the building.
The reinforcement structure will help to improve the stability of the existing masonry, reinforcing the external wall P, and to avoid the overturning of the non- structural elements, such as a possible masonry infill T associated with the wall P of the building, generally in reinforced concrete, absorbing any seismic stress and thus allowing the achievement of the minimum safety levels required by law.
In particular, the anti-overturning reinforcement structure will be placed in the first gap 5 and will comprise or be composed of one or more vertical bars 24, for example a vertical reinforcement bar 24 for each vertical upright 15 according to the configuration illustrated in the figures.
Preferably, the vertical bars 24 will have a box-shaped profile with a section of 60x20mm and a thickness of 3mm and will be made of S235 structural steel.
Each vertical upright 15 will be made integral with a corresponding vertical bar 24, for example by means of the same fixing element suitable for anchoring the vertical upright 15 to the external wall P.
From above it is clear that the structure according to the invention achieves the intended objects.
In fact, after appropriate structural design, the box profiles of the vertical reinforcement bars 24, anchored to the lower and upper ends of the reinforced concrete inter-storey beams, will give the structure the necessary rigidity, resistance and mass requirements necessary to actively contribute to the increase the capacity of non- structural construction elements of existing reinforced concrete buildings, such as external infills, to resist seismic actions in order to avoid problems of inadequacy of these elements in response to seismic action
Furthermore, the use of the multilayer coating will allow considerable advantages from the point of view of energy performance, minimum overall dimensions, adjustability for leveling the facade planes, elasticity with respect to thermal and mechanical deformations, cost-effectiveness compared to other types of insulating dry walls, due to the simplicity and speed of installation.

Claims

Claims
1. An improved external wall structure for thermal and/or acoustic insulation of buildings, comprising: a multilayer coating (2) suitable for coating the external wall (P) of a building to increase its thermal and/or acoustic insulation properties; anchoring means (3) of said multilayer coating (2) to the external wall (P) having a plurality of fixing elements each provided with a dowel (8) adapted to be fixed in the external wall (P) of the building and a pin (9) adapted to be inserted in said dowel (8) to project from the external wall (P); a load-bearing frame (6) for an external covering panel (7) having a vertical support structure (15) anchored to said fixing elements; spacing means (4) adapted to be placed between said multilayer coating (2) and the external wall (P) to hold said multilayer coating (2) spaced from the latter and define at least one first gap (5) between said external covering panel (7) and the external wall (P); characterized in that said load-bearing frame (6) comprises an anti-overturning reinforcement structure adapted to reinforce the external wall (P) and comprising one or more vertical bars (24) integral with said vertical support structure (15), said antioverturning reinforcement structure being further arranged in said at least one first gap
(5) between said vertical support structure (15) and the external wall (P) of the building.
2. Structure as claimed in claim 1, characterized in that said vertical bars (24) have a box-like profile with a section of 60x20mm and a thickness of 3mm and are made of S235 structural steel.
3. Structure as claimed in claim 1 or 2, characterized in that said load-bearing frame
(6) is placed on the opposite side of said multilayer coating (2) with respect to said spacing means (4).
4. Structure as claimed in any preceding claim, characterized in that said vertical support structure comprises one or more vertical uprights (15) each anchored to said fixing elements, each of said one or more vertical uprights (15) being integral with a corresponding one of said vertical bars (24) of said anti-overturning reinforcement structure.
5. Structure as claimed in claim 4, characterized in that each of said one or more vertical uprights (15) is anchored to the respective of said vertical bars (24) by means of a same fixing element adapted to anchor it to the external wall (P).
6. Structure as claimed in claim 5, characterized in that said load-bearing frame (6) comprises a plurality of horizontal uprights (17) adapted to be anchored to said vertical uprights (15) and adapted to support said external covering panel (7) and define a second gap (18) of the ventilated or non-ventilated type.
7. Structure as claimed in any claim from 4 to 6, characterized in that each of said pins (9) comprises or defines a threaded rod having a pointed free end suitable for making a corresponding hole in said multilayer coating (2) upon the application by pressure of the latter on said fixing elements.
8. Structure as claimed in claim 7, characterized in that said one or more vertical uprights (15) and said one or more vertical bars (24) are anchored to the respective fixing elements with the interposition of pairs of nuts (14, 16) adapted to be screwed onto said threaded rod to adjust the inclination thereof.
9. Structure as claimed in any preceding claim, characterized in that said multilayer coating (2) comprises a plurality of layers in different materials, the outer layers being made of heat-reflecting materials, such as aluminum or its alloys or aluminum-based materials and the like.
EP24716458.5A 2023-02-09 2024-02-09 Improved external wall structure for thermal and/or acoustic insulation of buildings Pending EP4662377A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102023000002253A IT202300002253A1 (en) 2023-02-09 2023-02-09 EXTERNAL COUNTER WALL STRUCTURE PERFECTED FOR THE THERMAL AND/OR ACOUSTIC INSULATION OF BUILDINGS
PCT/IB2024/051212 WO2024166049A1 (en) 2023-02-09 2024-02-09 Improved external wall structure for thermal and/or acoustic insulation of buildings

Publications (1)

Publication Number Publication Date
EP4662377A1 true EP4662377A1 (en) 2025-12-17

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EP24716458.5A Pending EP4662377A1 (en) 2023-02-09 2024-02-09 Improved external wall structure for thermal and/or acoustic insulation of buildings

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Country Link
EP (1) EP4662377A1 (en)
IT (1) IT202300002253A1 (en)
WO (1) WO2024166049A1 (en)

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