EP3299533A1 - Insulation block for a building closure, building closure with an insulation block and method for mounting a building closure - Google Patents

Abstract

The invention relates to an insulating block (5) for a building closure (1), for the insulating arrangement of the building closure (1), in particular a window, on a building, wherein the insulating block (5) for fastening on the outside to a frame (2) of the building closure (5). 1) is formed and seen in section one on the frame (2) attachable inside (6), the frame (2) facing away from the outside (7) and the inside (6) and the outside (7) connecting the top (8) and a bottom side (9) connecting the inside (6) and the outside (7) on the side facing away from the top side (8), wherein the underside (9) on the side facing the building of the insulating block (5) and the top ( 8) is present on the side facing away from the building of the insulating block (5). It is provided that the insulating block (5) has a first portion (10) and a second portion (11) in a delivery state of the building closure (1) via a parallel to the frame (2) extending, designed as a desired tear-off connecting web ( 12) are detachably connected to each other, wherein at least one of the first portion (10) and the second portion (11) of separating parting line (13) is formed parallel to the connecting web (12), which - again seen in section - starting from the Connecting web (12) extends in the direction of the outer side (7) of the insulating block (5) and is angled in the direction of the bottom (9). The invention further relates to a building closure (1) and a method for mounting a building closure (1).

Description

The invention relates to an insulating block for a building closure, for insulating arrangement of the building closure, in particular a window, on a building, wherein the insulating block is designed for external fastening to a frame of the building closure and seen in section an attachable to the frame inside, the frame remote from the outside and a connecting the inside and the outside top and one has the inside and the outside on the side facing away from the top side, the bottom on the building side facing the Dämmblocks and the top on the side facing away from the building of the insulating block is present. The invention further relates to a building closure with an insulating block for the insulating arrangement of the building closure on a building and a method for mounting a building closure on a building.

In principle, the building closure can be configured as desired. For example, it is in the form of a window, in particular a facade window or a skylight, before. The building closure preferably has as essential components on the frame and the wing. Of course, several frames and / or several wings can be provided. The wing can be referred to in the case of the window as a sash and the frame as a frame. The wing usually has a glazing which is present, for example, as single glazing or as multiple glazing, in particular double glazing or triple glazing.

The glazing is bordered, for example, by spars of the wing, wherein in particular two vertical spars and two horizontal spars are provided. The frame also preferably has two vertical bars and two horizontal bars. In each case, two of the spars are connected to each other, in particular, each of the vertical beams is connected to each of the horizontal beams. The frame is provided for example for stationary attachment to the building, in particular on or in a roof of the building, or for fastening in a recess of the building or the roof. The wing is on the Frame movably mounted and so far displaced so that it can be moved from a closed position to an open position and vice versa.

In order to insulate the building closure, in particular heat-insulating, to be arranged on the building, the insulating block is provided. This is for external attachment to the frame of the building closure, in particular the frame formed. For example, in the case of a thermally insulated building closure, the insulating block is already preassembled or fastened to the frame in the delivery state of the building closure. However, it can also be subsequently mounted or mounted on the frame. After mounting the building closure on the building, the insulating block is preferably present between the frame of the building closure on the one hand and building-side elements on the other. Under the latter can be understood in the case of the roof window, for example, a roof structure and / or a roof skin.

The insulating block has the inside and the outside and the top and bottom, which limit an outer periphery of the insulating block seen in section. In the case of the roof window, the terms "bottom" and "top" preferably actually describe an orientation of the insulating block, so that the top is above and the bottom below or the top above the bottom. In general, however, only the side of the insulating block facing away from the building after assembly of the building closure and the underside of the underside are the side facing it.

It is often necessary, during the assembly of the building closure, to adapt it to conditions of the building on or in which it is to be mounted. For example, it may be necessary to adjust the insulating block. In this case, it is usually necessary to proceed very cautiously, because a wrong adaptation of the insulating block results in an exchange of the complete insulating block. In this case, therefore, first of all the existing insulating block must be detached from the building closure or the frame and then a new insulating block attached to it.

It is an object of the invention to provide an insulating block for a building closure, which has advantages over known Dämmblöcken, in particular allows easy and quick installation of the building closure.

This is inventively achieved with an insulating block with the features of claim 1. It is provided that the insulating block has a first portion and a second portion which are releasably connected to each other in a delivery state of the building closure via a parallel to the frame extending, designed as a desired tear-off connecting web, wherein at least one of the first portion and parallel to the connecting web the second portion of separating parting line is formed, which - again seen in section - extends from the connecting web towards the outside of the insulating block and is angled in the direction of the bottom.

The insulating block consists so far of several sub-areas, namely at least the first portion and the second portion. Of course, however, further subregions, in particular in any number, can be provided. The two subareas are connected to each other in the delivery state of the building closure via the connecting web. In this case, the connecting web is preferably formed with the first subregion on the one hand and with the second subregion on the other hand with the same material and / or in one piece.

The connecting web extends in the longitudinal direction of the insulating block, ie in the direction of the largest extension of the insulating block. This direction is normally parallel to the frame, which can be chosen, for example, as a reference element. In the context of this description, a reference system is used with regard to the insulating block in which there is a longitudinal direction in the direction of the greatest extension of the insulating block and a lateral direction and a vertical direction are perpendicular to one another and perpendicular to the longitudinal direction. The lateral direction is usually in the direction of the smallest dimensions of the insulating block and extends for example in the direction of the frame or through it. In the vertical direction, however, the insulating block usually has dimensions which are between the dimensions in the longitudinal direction and the dimensions in the lateral direction. The vertical direction extends, for example, parallel spaced from the frame. The dimensions, for example of the insulating block, in the longitudinal direction are referred to as length, the dimensions in the lateral direction as width and the dimensions in the vertical direction as height.

The connecting web preferably extends in the longitudinal direction over the entire length of the insulating block. In contrast, it has a width which is less than the width of the insulating block. For example, the width of the connecting web is based on the width of the Maximum 5%, maximum 10%, maximum 15%, maximum 20% or maximum 25%. The connecting web has dimensions which effect a strength such that the two subregions are initially reliably held together.

However, the connection between the subregions can be achieved by mechanical influence on the insulating block, in particular the second subregion can be torn off from the first subregion, wherein the connecting web serves as a desired tear element. In the tearing off of the second portion of the first portion of the extent the connecting web over at least part of its length, preferably over its entire length, demolished. In that regard, the two sections are releasably connected to each other via the connecting bridge. With such a configuration, a simple and tool-free adjustment of the insulating block is made possible.

Adjacent to the connecting web is the parting line between the two sections. In particular, the connecting web is produced by the formation of the parting line. In other words, the connecting web limits the parting line, namely in particular in the direction of the frame or the inside of the insulating block. The parting line extends from the connecting web towards the outside of the insulating block. Because in the separation of the two subregions from each other and thereby tearing off the connecting web remainders of the connecting web may remain on the first portion, the parting line should be designed such that the insulating block or the first portion of a screen for the remaining part of the first portion of the Connecting web forms.

This is achieved by the parting line is angled, namely towards the bottom. This means that the parting line extends from the connecting web on the one hand in the direction of the outside and on the other hand in the direction of the bottom. For example, with the lateral direction, the parting line at least partially encloses an angle of at least 5 °, at least 10 °, at least 15 °, at least 20 °, at least 25 °, at least 30 °, at least 35 °, at least 40 ° or at least 45 °. The first subarea has so far on its outside an overhang in the direction of the building, creating a visual protection for the connecting web is realized.

The parting line is realized for example by a separation, in particular a cutting of the insulating block. The parting line separates the two sections from each other. Below that is however, it should not be understood that the two sections are spaced apart by the parting line, although this may of course be the case. Rather, preferably in the delivery state of the building closure or the insulating block to each other. When forming the parting line, a first sectional area is formed on the first partial area and a second sectional area on the second partial area. The two cut surfaces are in the delivery state preferably at least partially, in particular over the entire surface, to each other.

Within the scope of a further embodiment of the invention, it is provided that the first subarea and the second subarea are connected to each other in one piece via the connecting web and of the same material. This has already been pointed out above. The insulating block consists for example of a insulating flexible material. The material may be a material selected from a plurality of materials or a mixture of a plurality of these materials. As materials in particular plastics, such as polyethylene and thermoplastic elastomers are used. The material of the insulating block is preferably foamed to improve the insulation effect.

Within the scope of a further embodiment of the invention, it is provided that a fastening means for fastening the inner side to the frame is arranged on the first partial area and / or the second partial area is configured free of fastening means. In other words, only the first portion is attached to the frame of the building closure, while the second portion is held in the delivery state only over the first portion of the frame. For example, in this case, the second portion lies loosely on the frame. As an attachment means for fixing the first portion, for example, an adhesive, preferably a hot melt adhesive used.

A further development of the invention provides that there is a further parting line on the opposite side of the connecting web, which runs parallel to the connecting web and separates the first subregion and the second subregion, the further parting line being seen starting from the connecting web extends in the direction of the inside of the insulating block. In addition to the parting line so the further parting line is provided. This is preferably configured basically analogous to the parting line, thus extends at least in the longitudinal direction parallel to the connecting web and separates the two sections from each other. However, the parting line and the further parting line are formed on opposite sides of the connecting web. While the parting line starting from the connecting web extends in the direction of the outside of the insulating block, the further parting line should extend starting from the connecting web in the direction of the inside of the insulating block. For example, the parting line and the further parting line have the same dimensions in the lateral direction, so that overall the connecting web is present centrally or at least approximately in the center in the lateral direction on the insulating block.

A preferred embodiment of the invention provides that the parting line is angled relative to the further parting line. It has already been explained above that in order to form the visual protection for the connecting web, the parting line should be angled in the direction of the underside. For the further parting line, however, such a design is not necessary. Accordingly, it can, for example, when viewed in section, extend exclusively in the lateral direction, ie lie in a plane spanned by the longitudinal direction and the lateral direction. Accordingly, the further parting line is angled relative to the parting line. Of course, it can also be provided that the further parting line runs in the direction of the upper side or is angled in this direction.

In the context of a preferred embodiment of the invention it is provided that in the second portion of a protective receptacle for an attachable to the frame adhesive film, which serves to attach a vapor barrier to the building closure, is formed. During installation of the building closure in or on the building, the adhesive film is used to produce an adhesive bond to a vapor barrier to be provided by the customer. The adhesive film is on the one hand attached to the frame or fastened. On the other hand, it has an adhesive, for example an adhesive tape, by means of which it can be bonded to the vapor barrier. In conventional building closures, the adhesive film can be attached only during assembly to the building closure or the frame of the building closure.

It may alternatively be provided to attach and secure the adhesive film already in the production of the building closure. In the latter case, the adhesive connection to the vapor barrier can be made quickly and easily when mounting the building closure on or in the building. To secure, in particular for transport security, but so far complicated measures were necessary. However, the insulation block according to this description offers a much simpler way to securely store the adhesive film to the building closure. For this purpose, the protective receptacle for the adhesive film is formed on the second region. In the manufacture of the building closure are so far the adhesive film and the insulating block arranged or fixed to the frame. The adhesive film is partially arranged in the protective receptacle.

The protective receptacle is configured such that the adhesive film can not easily come out of here, in particular exclusively manually removed from the protective receptacle, for example by a fitter of the building closure. The adhesive film can be removed both from the protective receptacle if the second partial area remains in the first partial area when the building closure is mounted on the building, and if the second partial area is separated from the first partial area by tearing off the connecting bridge. In any case, in addition to the insulating block no additional security measures for storage of the adhesive film necessary. For example, the protective receptacle is located on a side of the second subarea facing away from the first subarea, in particular on the underside of the insulating block.

Finally, it can be provided in the context of a particularly preferred further embodiment of the invention that the protective receptacle is bounded by a at least partially parallel to the connecting web extending retaining lug which has a extending in the direction of the inner side free edge and is designed as a tear-off. The retaining lug extends in the longitudinal direction over at least part of the length of the insulating block, preferably over the entire length of the insulating block. It is at least partially arranged parallel to the connecting web, in particular continuously parallel. The retaining lug has a free edge which projects in the direction of the frame, so that overall the protective receptacle is present as an open-edged opening in the insulating block.

The retaining lug not only serves to limit the protection. Rather, it is additionally designed as a tear-off handle on which a fitter of the building closure can act to separate the second portion of the first portion by tearing off the connecting web. The retaining lug thus ensures easy handling of the insulating block. The retaining lug does not extend in the lateral direction to the frame, but rather is spaced therefrom. For example, based on the width of the insulating block, the retaining lug has a distance from the frame of at most 20%, at most 25%, at most 30%, at most 40%, at most 50%, at most 60%, at most 70% or at most 75%. However, the distance is preferably at least 10%, at least 20%, at least 25%, at least 30%, at least 40% or at least 50%.

The invention further relates to a building closure with an insulating block for insulating arrangement of the building closure to a building, in particular a Dämmblock according to the above, wherein the insulating block is attached to the outside of a frame of the building closure and seen in section an attached to the frame inside, a the Frame facing away from the outside and a connecting the inside and the outside top and a the inside and the outside on the side facing away from the top side has underside, the bottom on the building side facing the Dämmblocks and the top on the side facing away from the building Dämmblocks present.

It is provided that the insulating block has a first portion and a second portion which are releasably connected to each other in a delivery state of the building closure via a parallel to the frame extending, designed as a desired tear-off connecting web, wherein at least one of the first portion and parallel to the connecting web the second portion of separating parting line is formed, which - again seen in section - extends from the connecting web towards the outside of the insulating block and is angled in the direction of the bottom.

On the advantages of such an embodiment of the building closure and the Dämmblocks has already been noted. Both the building closure and the insulating block can be developed according to the above statements, so that reference is made to this extent.

A further embodiment of the invention provides that attached to the frame for fixing a vapor barrier to the building closure serving adhesive film, seen in the delivery state of the building closure in section at least partially present between the frame and the insulating block and engages in a protective receptacle of the insulating block , This has already been pointed out above. The adhesive film can be held at least partially clamped between the frame and the insulating block. In particular, this is the case for a region of the adhesive film which is fastened to the frame, for example by adhesive bonding. This area of the adhesive film is followed by another area, which engages in the delivery condition of the building closure in the protective receptacle of the insulating block.

Finally, the invention relates to a method for mounting a building closure to a building, in particular a building closure according to the preceding embodiments, wherein the building closure has an insulating block for insulating arrangement of the building closure on the building, which is externally attached to a frame of the building closure and in section seen an inside fixed to the frame, an outer side facing away from the frame and a top side connecting the inside and the outside and an underside connecting the inside and the outside on the side facing away from the top, the underside being on the side of the insulating block facing the building and the top is on the side of the insulating block facing away from the building.

It is provided that the insulating block has a first portion and a second portion which are releasably connected to each other in a delivery state of the building closure via a parallel to the frame extending, designed as a desired tear-off connecting web, wherein at least one of the first portion and parallel to the connecting web the second portion of separating parting line is formed, which - again seen in section - extending from the connecting web towards the outside of the insulating block and is angled towards the bottom, and wherein during assembly of the building closure of the second portion of the building closure through Tear off the second portion of the first portion is removed.

The building closure can be developed as well as the method for its mounting according to the above statements. Accordingly, reference will again be made to this.

Figur

eine schematische Darstellung eines Bereichs eines als Dachfenster ausgestalteten Gebäudeverschlusses, der zur dämmenden Anordnung des Gebäudeverschlusses an einem Gebäude einen Dämmblock aufweist.

The invention will be explained in more detail with reference to the embodiments illustrated in the drawings, without any limitation of the invention. The only one shows

figure

a schematic representation of a portion of a designed as a roof window building closure, which has a Dämmblock to the insulating arrangement of the building closure to a building.

The figure shows a schematic sectional view through an area of a building closure 1, which is present in the embodiment shown here as a roof window, in particular as a living roof window. The building closure 1 has a frame 2, of which here a spar 3 is shown. The frame 2 is, for example, as a frame of the roof window. On an outer side 4 of the frame, an insulating block 5 is arranged and fixed. The insulating block 5 has an inner side 6 facing the frame 2, an outer side 7 facing away from the frame 2, an upper side 8 and a lower side 9. The top 8 and the bottom 9 connect - seen in section - each of the inside 6 with the outside 7th

The insulating block 5 has a first partial area 10 and a second partial area 11. In a delivery state of the building closure 1, the first portion 10 is attached to the frame 2, for example, it is glued to this. By contrast, the second subregion 11 is preferably fastened to the frame 2 exclusively via the first subregion 10. In particular, the second portion 11 is designed free of fasteners. The second portion 11 engages via a connecting web 12 to the first portion 10. Preferably, the second portion 11 is connected exclusively via the connecting web 12 directly to the first portion 10. It is preferably provided that the connecting web 12 is configured both with the first portion 10 and with the second portion 11 each in one piece and of the same material. The connecting web 12 has a width in the lateral direction which is smaller than the width of the insulating block 5.

The connecting web 12 is designed as a desired tear-off element, which allows a separation of the sub-regions 10 and 11 by tearing off the connecting web 12 and the Sollabrisselements. The insulating block 5 is preferably made of plastic, in particular a foamed plastic. As a plastic, for example, polyethylene or the like is used. To form the connecting web 12 of the insulating block 5 is partially slotted to form a parting line 13 and a further parting line 14. The parting line 13 passes through the outside 7 of the insulating block 5, whereas the parting line 14 passes through the inside 6.

The parting line 13 is bounded on its side facing away from the outside 7 of the connecting web 12. The parting line 14 is also bounded by the connecting web 12, namely on its side facing away from the inside 6. The parting lines 13 and 14 preferably extend in the longitudinal direction of the insulating block 5 at least for the most part, in particular completely, through it. The parting lines 13 and 14 are realized such that the connecting web 12 is substantially parallel to the frame 2 and the spar 3 of the frame 2. Seen in section, the connecting web 12 is located, for example, in the center in the insulating block 5.

It can be clearly seen that the further parting line 14, viewed in section, lies in a horizontal plane which is spanned by the longitudinal direction and the lateral direction. This means in particular that the parting line 14 the frame 2 and the spar 3 intersects perpendicularly. For example, the parting line 14 is arranged parallel to a glass plane of the building closure 1. The parting line 13, however, extends from the connecting web 12 in the direction of the outside 7 and is also angled in the direction of the bottom 9. It follows preferably that the parting lines 13 and 14 seen in section are angled against each other. Both the parting line 13 and the parting line 14 are preferably each defined by a plane or lie in this. It is so far no curved course of the joints 13 and 14 provided, although of course, such a can be realized.

Due to the angled arrangement of the parting line 13, a privacy screen 15 is formed, which possibly shields in the separation of the subregions 10 and 11 from each other on the first portion 10 remaining remnants of the connecting web 12 visually against an outside environment. Despite the separation of the portions 10 and 11 by the tearing off of the connecting web 12 so far an excellent visual impression of the building closure 1 is guaranteed even after its installation. Thus, both a simple installation and an excellent visual impression of the building closure 1 are achieved by means of the building closure 1 described here.

Furthermore, the insulating block 5 offers the possibility to safely store an adhesive film 16 after its attachment to the frame 2 to the installation of the building closure 1 to the building without separate measures would be required. For this purpose, the insulating block 5 a protective receptacle 17, in which the adhesive film 16 is arranged in the delivery state of the building closure 1 at least partially. For example, a first film region 18 of the adhesive film 16 is attached to the frame 2, in particular materially bonded, for example, adhesive. In addition, the first film region 18 can be clamped between the frame 2 and the insulating block 5, so that the insulating block 5 thus urges the first film region 18 in the direction of the frame 2 or holds it.

The first film region 18 is adjoined by a second film region 19, which, for example, is wound up in the protective receptacle 17. The protective receptacle 17 has a shape such that the adhesive film 16 after the production of the building closure 1, so at least until the installation of the building closure 1 to the building, is reliably held in the protective receptacle 17. For example, the protective receptacle 17 is limited in this case by a retaining lug 20, which on the one hand urges the adhesive film 16 into the protective receptacle 17 or holds in it and on the other hand is designed as a tear-off handle. The tear-off handle serves as a point of attack for a fitter of the building closure 1 for separating the sections 10 and 11 from each other by tearing off the connecting web 12. This ensures a comfortable handling of the building closure 1 during its assembly.

Overall, a building closure 1 and an insulating block 5 are presented, which have numerous advantages over known building closures or known Dämmblöcken. So they allow due to the separability of the sections 10 and 11 of the insulating block 5 from each other a simple adaptation of the building closure 1 to local conditions in the assembly of the building closure 1 to the building. Nevertheless, it is ensured that this does not cause optical losses, because the screen 15 is achieved by the oblique arrangement of the parting line 13. Furthermore, the proposed insulating block 5 allows an advantageous intermediate storage of the adhesive film 16, which serves for producing an adhesive bond of the building closure 1 to a vapor barrier of the building.

Claims (10)

Insulating block (5) for a building closure (1), for the insulating arrangement of the building closure (1), in particular a window, on a building, wherein the insulating block (5) for external fastening to a frame (2) of the building closure (1) is formed and seen in section one on the frame (2) attachable inside (6), the frame (2) facing away from the outside (7) and the inside (6) and the outside (7) connecting the top (8) and the inside (6) and the outer side (7) on the side facing away from the upper side (8) connecting underside (9), wherein the underside (9) on the building side facing the Dämmblocks (5) and the upper side (8) on the the side facing away from the building of the insulating block (5), characterized in that the insulating block (5) has a first portion (10) and a second portion (11) in a delivery state of the building closure (1) via a parallel to the Ra (2) extending, designed as a predetermined breaking element connecting web (12) are detachably interconnected, wherein at least one of the first portion (10) and the second portion (11) from each other separating parting line (13) is formed parallel to the connecting web (12), which, again in section, extends from the connecting web (12) in the direction of the outer side (7) of the insulating block (5) and is angled in the direction of the underside (9). Insulating block according to claim 1, characterized in that the first portion (10) and the second portion (11) via the connecting web (12) are integrally and materially connected to each other. Insulating block according to one of the preceding claims, characterized in that a fastening means for fixing the inner side (6) on the frame (2) on the first portion (10) is arranged and / or the second portion (11) is designed free of fasteners. Insulating block according to one of the preceding claims, characterized in that on the parting line (13) opposite side of the combustion web (12) there is a further parting line (14) which runs parallel to the connecting web (12) and the first portion (13) and the second portion (14) from each other, wherein the further parting line (14) seen in section, starting from the connecting web (12) in the direction of the inside (6) of the insulating block (5). Insulating block according to one of the preceding claims, characterized in that the parting line (13) is angled relative to the further parting line (14). Insulating block according to one of the preceding claims, characterized in that in the second subregion (11) a protective receptacle (17) for an adhesive film (16) which can be fastened to the frame (2) and serves for fastening a vapor barrier to the building closure (1), is trained. Insulating block according to one of the preceding claims, characterized in that the protective receptacle (17) is delimited by a retaining lug (20) extending at least in regions parallel to the connecting web (12), which has a free edge extending in the direction of the inner side (6) and is designed as a tear-off. Building closure (1) with an insulating block (5) for the insulating arrangement of the building closure (1) on a building, in particular an insulating block (5) according to one or more of the preceding claims, wherein the insulating block (5) on the outside on a frame of the building closure (1 ) and seen in section one on the frame (2) fixed inside (6), the frame (2) facing away from the outside (7) and the inside (6) and the outside (7) connecting top (8) and a underside (9) connecting the inner side (6) and the outer side (7) on the side facing away from the upper side (8), wherein the underside (9) on the side of the insulating block (5) facing the building and the upper side (8 ) is present on the side facing away from the building of the insulating block (5), characterized in that the insulating block (5) has a first portion (10) and a second portion (11) which in a delivery state of the building closure (1 ) are detachably connected to one another via a connecting web (12) extending parallel to the frame (2) and designed as a desired breaking element, at least one parting line separating the first part region (10) and the second part region (11) parallel to the connecting web (12) (13) is formed, which - again seen in section - extending from the connecting web (12) in the direction of the outside (7) of the insulating block (5) and is angled in the direction of the bottom (9). Building closure according to claim 8, characterized in that on the frame (2) for fixing a vapor barrier to the building closure (1) serving adhesive film (16) is attached, seen in the delivery state of the building closure (1) in section at least partially between the Present frame (2) and the insulating block (5) and engages in a protective receptacle (17) of the insulating block (5). Method for mounting a building closure (1) on a building, in particular a building closure (1) according to claim 8 or 9, wherein the building closure (1) has an insulating block (5) for the insulating arrangement of the building closure (1) on the building, the on the outside on a frame (2) of the building closure (1) is fixed and seen in section an inside fixed to the frame (6), the frame (2) facing away from the outside (7) and the inside (6) and the outside ( 7) connecting top side (8) and a the inside (6) and the outside (7) on the side facing away from the top (8) side connecting bottom (9), wherein the bottom (9) on the building side facing the Dämmblocks (5) and the upper side (8) on the side facing away from the building of the insulating block (5), characterized in that the insulating block (5) has a first portion (10) and a second portion (11) which in a m state of delivery of the building closure (1) via a parallel to the frame (2) extending, designed as a predetermined breaking element connecting web (12) are detachably connected to each other, wherein parallel to the connecting web (12) at least one of the first portion (10) and the second portion (11) separating separating joint (13) is formed, which - again seen in section - starting from the connecting web (12) in the direction of the outside (7) of the insulating block (5) and is angled in the direction of the bottom (9) , and wherein during assembly of the building closure (1), the second portion is removed from the building closure (1) by tearing off the second portion (11) from the first portion (10).

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