Film product for attachment to a building envelope for protection against bird strikes

Description

[0001] The present invention relates to a foil product for application to a building envelope for protection against bird strikes, a method for applying such a foil product and a facade element with such a foil product.

[0002] It is known that transparent sections of building envelopes pose a risk of bird strikes. This occurs when birds in flight fail to perceive these transparent sections as obstacles, or perceive them too late, and consequently fly into them. This often results in injuries or even death for the bird.

[0003] It is also known that foil products are applied to building envelopes, which help birds perceive these transparent sections as obstacles. This is in addition to known solutions in the visible (VIS) range for humans. (visIn addition to the bird protection functions that are generally effective, so-called UV bird protection sections are also used, which achieve their effect in the UV range. This means that UV bird protection sections have a different optical effect in the UV range compared to other sections of a film product, for example, with increased or reduced absorption or different reflection properties. Because a large number of bird species are able to perceive such differences in the UV range, a protective effect against bird strikes can be ensured by the geometric design of the UV bird protection sections. Relevant state of the art is also represented, for example, by: US 2013 / 003208 A1, US 2005 / 284411 A1, US 2016 / 137850 A1.

[0004] A disadvantage of the known solutions is that the UV bird protection function, due to its effect in the UV range, is not perceptible to humans. While this lack of visibility in the visible range is advantageous for humans once the film product has been installed, it complicates the installation process. Because the UV bird protection section is invisible, the installer cannot see its position and / or orientation on the film.However, since the UV bird protection function achieves its effect through geometric correlation to the building envelope and / or through geometric correlation to other UV bird protection sections of the same and / or a different film body, the orientation of the film product and the associated orientation of the UV bird protection section are of essential importance for functional reliability in protection against bird strikes.

[0005] The object of the present invention is to at least partially overcome the disadvantages described above. In particular, the object of the present invention is to achieve a better effect using UV bird protection sections in a cost-effective and simple manner, while simultaneously facilitating installation.

[0006] The foregoing problem is solved by a film product having the features of claim 1, a method having the features of claim 13, and a facade element having the features of claim 15. Further features and details of the invention will become apparent from the dependent claims, the description, and the drawings. Features and details described in connection with the film product according to the invention naturally also apply in connection with the method and the facade element according to the invention, and vice versa, so that the disclosure of the individual aspects of the invention always makes, or can make, reciprocal references.

[0007] The core concept of the invention is that a film product for application to a building envelope, in particular a transparent section of the building envelope, can be used to protect against bird strikes. This film product has a film body with a planar extent. The film body is equipped with at least one UV bird protection section, which has an optical effect in the UV range as a UV bird protection function. The UV bird protection section has a bird protection position relative to the film body. Furthermore, at least one mounting mark with an optical effect in the visible range (VIS) is provided. This mounting mark is equipped with at least one alignment section, which indicates the bird protection position of at least one UV bird protection section in the VIS range.

[0008] The term "building envelope" can refer to any type of material, especially those that are reflective and / or transparent. This can include, for example, glass surfaces, plastic surfaces, and / or metal surfaces.

[0009] The film product can be applied either to the surface of the building envelope and / or embedded within the building envelope material. For example, a multi-layered material is conceivable in which the film product, particularly a film core, forms one or more of the layers. Co-formation with the building envelope material, for example through co-extrusion, is also possible.

[0010] A film product, as defined in the present application, can have different configurations. For example, a multi-layered design for the film body is conceivable. Simpler, particularly single-layer, film bodies are also possible. Naturally, a more complex design with different, adjoining sections is also to be understood as a film product within the meaning of the present invention.

[0011] The core concept of the invention is based on attaching a bird protection function, invisible to humans, to a transparent section of a building envelope using a foil product. It is irrelevant whether the foil product is subsequently attached to the building envelope or already incorporated into it during the pre-assembly process or even during the manufacturing process of the section, in particular the facade element described later.

[0012] The film product according to the invention incorporates at least one UV bird protection section to provide bird protection. The UV bird protection section has an optical effect in the UV range, which is invisible to humans. The protective effect can be achieved, for example, through geometric shapes. For instance, striped patterns, grid patterns, raster patterns, dot patterns, as well as other, more complex geometric shapes, can provide one or more UV bird protection sections. In this disclosure, a particularly simple example is chosen to describe the functionality in more detail. This example is a striped pattern with UV bird protection sections that alternate either with open areas or with other UV bird protection sections having a different optical effect in the UV range.However, the present invention is by no means limited to this simple embodiment, but is independent of the actual positioning, shape and / or orientation of the individual UV bird protection sections.

[0013] In the example given, several strip-shaped UV bird protection sections can be formed parallel to each other, directly next to each other, or spaced apart in a grid pattern within the foil. For a bird with UV vision, this creates a strip-shaped barrier, which it perceives as an arrangement of bars. Depending on the bird's size, this means that it can perceive the remaining strips between the UV bird protection sections as open space, but this space is preferably narrow enough that it does not choose it as a flight path. In other words, in this embodiment, the UV bird protection section forms a bird protection grid that the UV-sensitive bird can see, while simultaneously remaining invisible to humans.

[0014] It is also clearly evident here that the orientation and positioning of the film product, and thus of at least one UV bird protection section, is crucial when applied to the building envelope. If the building envelope is, for example, a glazed facade, several film products must be applied side by side. In this case, it is particularly important that directly adjacent film products continue the described striped pattern in such a way that the geometric effect of the correlation between the striped UV bird protection sections is maintained even when multiple film products are adjacent. This is only the case if the orientation of the film products to each other corresponds to a predetermined and desired shape.However, when installing the foil product, the installer cannot see in which position and / or orientation the UV bird protection sections are arranged, since, according to their functionality, they are precisely not visible to humans.

[0015] In the assembly situation described here, the advantages of the invention become apparent. While the installer will not be able to see the at least one UV bird protection section, they can see the assembly marking visible in the VIS area. This assembly marking includes at least one alignment section, which contains an indicator for the bird protection position. The orientation of the bird protection position can be indicated in various ways. Besides an indirect, informative indication, such as a label, an arrow, or similar, it is also possible that the mere positioning of the alignment section already provides the indication of the correct orientation of the film product for the proper and correct alignment of the UV bird protection sections.Direct indication, for example by overlapping or partially overlapping the mounting mark with the at least one UV bird protection section, is also conceivable within the scope of the present invention. An alignment section can therefore provide an implicit or explicit indication of the bird protection position.

[0016] It should also be noted that a bird protection position within the meaning of the present invention is associated with the desired protective function and the corresponding geometric design of the at least one UV bird protection section. Thus, the bird protection position can include the actual relative positioning of a UV bird protection section to the edge of the film body. The bird protection position can also be a relative position between two UV bird protection sections. Naturally, more complex relationships regarding positioning and orientation are also to be understood as bird protection positions within the scope of the present invention.

[0017] A foil product according to the invention now makes it possible for the installer to see visible mounting markings when installing the foil product on the building envelope. These markings allow for a high degree of certainty in the installation of the foil product in such a way and, above all, in such a way that the UV bird protection sections, which are not visible to the installer, are positioned on the building envelope in the desired orientation. Incorrect installation, especially of several foil products next to each other, can thus be reliably prevented.

[0018] Another mounting situation in which alignment is facilitated by the design according to the invention is mounting on both sides of a transparent section of a building envelope. This could, for example, be a glass partition at a bus stop, which birds can approach from both sides. Mounting on both sides produces the desired protective effect identically on both sides. However, it is essential to ensure that the UV bird protection sections are aligned perfectly. In other words, the UV bird protection sections, which are, for example, strip-shaped, must be located in identical and therefore congruent positions on both sides of the glass partition. Otherwise, there is a risk that the UV bird protection sections on both sides will complement each other and thus impair or even eliminate the protective function.

[0019] Advantages can arise if, in a film product according to the invention, the alignment section has an orientation and / or a position that correlates with the orientation of the at least one UV bird protection section, in particular is aligned along the orientation of the at least one UV bird protection section and / or at least partially coincides with the bird protection position. Different embodiments of the alignment section are described here. In particular, this involves a direct indication of the protection function, whereby, in the simplest way, one or more subsections of the UV bird protection section are simply covered and thus represented by the alignment section. However, in order to reduce or even minimize the visibility of the UV bird protection sections as much as possible, the alignment section is preferably designed to be significantly smaller than the at least one bird protection section.Different types of alignment sections can also be combined within the scope of the present invention. The positioning and / or alignment can, in particular, also have an informative character, as will be explained later, in order to display this alignment information.

[0020] A further advantage can be achieved if, in a film product according to the invention, at least one alignment section includes an information section that provides visual information about the bird protection position. While the alignment section can, in principle, already create a display function simply through its positioning and orientation, the information section can also contain information in the form of text, an angular representation, and / or an arrow representation, and thus specify an alignment and / or relative positioning for installation. A combination of a directly acting alignment section and an indirectly acting information section is, of course, also conceivable within the scope of the present invention.

[0021] It is also advantageous if, in a film product according to the invention, the bird protection position of the at least one UV bird protection section has at least one of the following forms of design: Extension of at least one UV bird protection section; location of at least one UV bird protection section in relation to the edges of the foil body; location of at least two UV bird protection sections in relation to each other

[0022] The preceding list is not exhaustive. The extent of at least one bird protection zone can, for example, be an elongated extension of a strip-shaped UV bird protection zone. The location of such a UV bird protection zone relative to the edges can also be indicated as a relative position, for example, which of the two edges the respective UV bird protection zone is closer to. If UV bird protection zones are arranged in multiple ways, for example, in the strip-shaped configuration already described, the orientation of these strips and / or the distance between them can also be part of the bird protection position as indicated.

[0023] It is also advantageous if, in a film product according to the invention, one surface of the film body is provided with a cover film, particularly to cover an adhesive surface of this surface, wherein the mounting marking is arranged at least partially in and / or on this cover film. This embodiment is preferred if the film body is free of a mounting marking. In other words, the mounting marking is arranged on a cover film separate from the film body, thus allowing the mounting marking to be removed after or even during assembly. This cover film can also be referred to as a release liner if it covers the adhesive surface accordingly.Once the top film is removed and the film product is correctly aligned during installation, the mounting mark also disappears. In its final position on the building envelope, the mounting mark is no longer visible and therefore does not obstruct the view through the transparent section. Naturally, this mounting mark arrangement on a top film can be freely combined with other mounting mark arrangements within the scope of the present invention.

[0024] A further advantage is that, in a film product according to the invention, the mounting marking is part of the film body. This can be an alternative or additional embodiment as described in the preceding paragraph. In this embodiment, the mounting marking is integrated into the material of the film body and / or printed on it. Applying the mounting marking can be part of a manufacturing process for the film body, so that the mounting marking is applied simultaneously with, or at least in the same manufacturing process for, the UV bird protection sections. In this way, incorrect placement of the mounting marking, which would lead to incorrect assembly, is prevented with a high degree of certainty. In other words, the probability of incorrect printing of the mounting marking is reduced to a minimum.The mounting marker can, for example, be part of the adhesive between individual layers of film. However, it is also possible to integrate the mounting marker into one or more UV bird protection sections by selecting appropriate pigments or dyes. Fluorescent mounting markers are also conceivable; their visibility under daylight during installation can be improved for the installer by using appropriate lighting, such as a UV lamp.

[0025] A further advantage is that, in a film product according to the invention as described in the preceding paragraph, the mounting marking, in particular the at least one alignment section, has a temporary effect in the visible spectrum. This means that the mounting marking loses at least some of its effect in the visible spectrum after a certain holding time. For example, this can be achieved by the mounting marking fading under the influence of UV light. The mounting marking is essentially protected by the film product itself against the effects of sunlight and thus against the effects of UV radiation when the film product is wound or rolled up. During application, the film product is unwound from the roll, and the mounting marking becomes visible as it is unwound.Once the installation is complete, the mounting mark on the transparent section of the building envelope is exposed to the elements, particularly sunlight. If a dye is used for the mounting mark that fades under UV radiation, its temporary visibility can be reduced by gradually fading. In other words, the mounting mark is present for installation and fades over a defined period as its temporary effect diminishes. Integrating it into the film thus increases visibility while preventing any undesirable impairment of the film product's appearance after it has been applied to the building envelope and the fading process has ended.

[0026] It is also advantageous if the mounting marking on a film product according to the invention is continuous and / or repeating. As already explained, film products can be arranged on rolls. This allows the desired length of the film product to be cut to size, depending on the required length and the varying dimensions of the building envelope section. Because this embodiment provides not just a single mounting marking, but a continuous or repeating one, the advantage of marking the mounting direction and indicating the bird protection position can be achieved for all different mounting situations.

[0027] A further advantage can be achieved if, in a film product according to the invention, at least one alignment section exhibits visibility at the edge of the visible spectrum, towards the UV range, particularly in the range between 5 and 20 nanometers from the UV range. In other words, the alignment section is only just barely visible to humans, as it is located very close to the UV range. Since the UV range can be defined differently depending on the literature, the alignment section is located, for example, in the range between 405 and 425 nanometers. This means that the alignment section is, in principle, visible to humans in the visible range, but only to a limited extent.In other words, the alignment section recedes into the background during a normal inspection of the building envelope, but is still sufficiently visible to the installer for proper and correct installation.

[0028] Further advantages can be achieved if, in a film product according to the invention, the mounting marking includes an origin section to indicate the origin of the film product, which is formed, in particular, at least partially by the alignment section. Preferably, the origin section is formed entirely by the alignment section and can, for example, include a logo or similar element. This alignment is always visible, so that, in addition to ensuring correct mounting, the origin section also provides an indication of quality and function. This ensures not only the correct application of the film product during mounting, but also indicates the correct application and the associated functionality in protecting against bird strikes after mounting.

[0029] Further advantages can arise if, in a film product according to the invention, the mounting marking, in particular the at least one alignment section, is visible only from one side of the film body. For example, polarizing filters and / or textured colors can be used to achieve one-sided visibility of the mounting marking. This refers in particular to visibility from the side of the film body that is visible to the installer during installation. This could, for example, be a cover film on the inner side, whereby the mounting marking is visible to the installer through the transparent film product.

[0030] It is further advantageous if, in a film product according to the invention, the bird protection position of at least one bird protection section includes a slash allowance, which is trimmed off during installation on the building envelope. As already explained at the outset, with wide building envelopes, direct butt joints and thus adjacent installation of film products may be necessary. To enable gap-free butt joint installation of two film products side by side, an overlap is usually provided. Since, as also already explained, the geometric correlation contributes to the protective effect of the UV bird protection sections, the slash allowance is now able to take this into account when arranging the UV bird protection sections within the film body.In other words, it is taken into account that when butting the film together, a portion of it will be cut off, so that in the final position, i.e., after trimming off the slash, the desired relative positioning of the UV bird protection sections is restored. This slash, for example, can be designed for a vertical cut between 1 and 3 centimeters from the respective edge of the film.

[0031] For a film product as described in the preceding paragraph, it is advantageous if the mounting mark, particularly as part of at least one alignment section, indicates the cut allowance qualitatively and / or quantitatively. This means that not only the presence of the cut allowance can be indicated qualitatively, but also its distance from the respective edge, for example, in centimeters. The degree of required overlap is thus visually specified, further simplifying the mounting process. In other words, the mounting mark can thus indicate not only the desired alignment relative to another film product, but also the quantitative alignment of an overlap during the mounting process.

[0032] It can also be advantageous if such an installation mark on a foil product, as described in the two preceding paragraphs, is located at least partially, and in particular completely or substantially completely, within the cutting allowance. This ensures that after the cutting allowance is trimmed, the installation mark is also cut off and thus removed. As already explained, it is advantageous to minimize the impact on the transparency of the building envelope section within the visible area (VIS). If the installation mark is cut off along with the cutting allowance, it can no longer impair the transparency of the section after installation is complete.

[0033] Also part of the present invention is a method for attaching a foil product according to the present invention to a building envelope, comprising the following steps: Determining the bird protection position of the at least one UV bird protection section using the at least one alignment section, arranging the foil product on the building envelope based on the determined bird protection position, and securing the foil product in the arranged position.

[0034] Thus, a method according to the invention offers the same advantages as those explained in detail with reference to a film product according to the invention. The individual steps of the method can be carried out simultaneously, in the described sequence, or in a different sequence. Crucially, alignment and relative positioning to the adjacent, already applied film are possible, either alternatively or in combination.

[0035] It can be advantageous if, in a method according to the invention, the film product is applied directly adjacent to a film product already attached to the building envelope, in particular comprising the following steps: Position the foil product with an overlap over the already applied foil product, cut off the overlap.

[0036] This refers to butt joint application, where the overlap is part of a kerf, as previously explained. This means that the film product is butt-jointed either before or after the overlap is trimmed in the designated position. This offers an advantage because, according to the invention, a gap-free butt joint application of the film products can be ensured with a high degree of reliability, guaranteeing the correct relative alignment of the film products to one another.

[0037] A further object of the present invention is a facade element for a section of a building envelope, in particular in the form of a window and / or a glass element, comprising a facade base body which includes a film product according to the invention. The mounting marking is part of the film body of the film product. Alternatively or additionally, it is also possible to form the mounting marking as part of the facade element and thus separately from the film body. The facade element can contain information about the orientation and, in particular, the bird protection position of the UV bird protection sections in the film body, so that when installing a facade element, for example a glass pane, this orientation can be taken into account in the same way as explained above with regard to the attachment of the film product to the section of the building envelope.

[0038] As part of the preparation process, the facade element can, for example, be covered with the film product on the ground in front of a building, and then the fully pre-assembled facade element can be attached to the building's facade. Alternatively or additionally, the film can also be integrated during the manufacturing of the facade element, for example, between several panes of glass. This type of facade element thus offers the same advantages as those explained in detail with reference to a film product according to the invention.

[0039] Further advantages, features, and details of the invention will become apparent from the following description, in which exemplary embodiments of the invention are described in detail with reference to the drawings. The features mentioned in the claims and in the description can be essential to the invention individually or in any combination. The drawings schematically show: Fig. 1 shows an embodiment of a film product according to the invention in the UV range, Fig. 2 shows the embodiment of the Figure 1 in the VIS range, Fig. 3 another embodiment of a film product in the VIS range, Fig. 4 another embodiment of a film product in the VIS range, Fig. 5 another embodiment of a film product in the VIS range, Fig. 6 another embodiment of a film product in the VIS range, Fig. 7 a relative positioning of two film products in the VIS range, Fig. 8 the embodiment of the Figure 7in the UV range, Fig. 9 a misalignment of the Figure 7 in the VIS area, Fig. 10 the misalignment of the Figure 9 in the UV range, Fig. 11 a representation of a cutting allowance, Fig. 12 a design of a building envelope with several facade elements.

[0040] According to the invention, the aim is now to create a building envelope 100, as is the case with the Figure 12 represents, to be provided with bird protection. The building envelope 100 of the Figure 12 This features a partially glazed facade with four facade elements 110, which are either already provided with a film product 10 according to the invention during the manufacture of the facade base bodies 112 or are subsequently fitted with a film product 10 according to the present invention by sticking it onto the individual facade elements 110 as transparent sections.

[0041] The Figure 1This demonstrates a particularly simple, yet not limiting, possibility of implementing a bird protection function. To illustrate the function, the Figure 1The UV range, i.e., the perception achieved by a bird, is shown. Here, several strip-shaped UV bird protection sections 30 are integrated into a film body 20, which provides the film product 10. The bird protection effect is formed by a bird protection position VP of the individual protection sections 30, such that the bird protection position VP defines the direction of extension, represented by the vertical double arrow, and the gap width between adjacent UV bird protection sections 30, represented here by the horizontal double arrow. A mounting mark 40 is shown in the upper right of the film product 10. This contains an alignment section 42, which here represents an arrow-shaped information section 44. Thus, it is shown that the upward-pointing arrow indicates the direction in which the bird protection position VP aligns the individual UV bird protection sections 30.This provides an information display, which is also available in the VIS area, as defined by the . Figure 2 shows, which represents information for the technician. Like the Figure 2 In the visible area (VIS), the individual UV bird protection sections 30 are not discernible. They are shown here schematically with dashed lines for clarity only, although the film body 20 appears to the installer as a single, undivided surface. In the visible area, only the mounting mark 40 is visible, so the installer knows the orientation of the UV bird protection sections 30, even though they are not visible.

[0042] In the Figure 3A further development of such a film product 10 is shown. Since film products 10 of this type are frequently transported rolled up on rolls and made available for assembly, a repeating application of an identically repeating assembly marking 40 is provided here. These are all designed with an arrow-shaped information section as an alignment section 42, as described with reference to the Figures 1 and 2 has been explained.

[0043] In the Figure 4Another variant is shown, which, in the form of a watermark, represents the mounting mark 40 essentially across the foil body 20. The alignment section 42 is again marked as an arrow with an information section 44 pointing upwards to the right, thus clearly indicating the desired mounting position in correlation with the bird protection position VP. Such a watermark is specifically designed so that its effect in the visible spectrum is intended to have a temporary fading period. For example, by using UV-unstable dyes in the mounting mark, it will fade over time due to sunlight after being applied to a building envelope 100, thereby gradually losing visibility.

[0044] In the Figure 5Another embodiment of the mounting mark 40 is shown. The alignment section 42 is provided here with an origin section 46, schematically represented here as a circular logo. Here, there is no information section 44; instead, the information is encoded by the fact that the mounting mark 40 should always be located in the upper left corner of the foil body 20. This indirectly indicates the bird protection position VP.

[0045] In the Figure 6 A continuous formation of the alignment section 42 of the assembly marking 40 is given. This correlates in particular with an additional indication, namely the indication of a cutting allowance SZ, which will be explained later.

[0046] Based on the Figures 7 to 10The assembly procedure is briefly explained. This is particularly easy to understand when two or more foil products are to be butted together on wide facade elements (110 mm). Figure 7 This shows the correct arrangement of the two adjacent foil bodies 20 in the VIS area and the Figure 8 The same situation applies in the UV area. As can be clearly seen here, the right-hand film product 10 seamlessly continues the striped pattern of the UV bird protection sections 30 of the left-hand film product 10 as a repeat. This was ensured because the installer could take this desired relative correlation into account in the arrangement in the VIS area by means of the mounting markings 40 of both film products 10.

[0047] The Figures 9 and 10 The same situation is shown, but with an incorrect and therefore false relative orientation of the film products 10 to each other. This would be the case if, as shown in the UV range of the Figure 10 The right-hand foil product 10 is now incorrectly attached, rotated 180°. This results in the pattern repeat being incorrectly formed between the two foil products 10, creating a gap twice as wide and therefore undesirably large at the joint between the adjacent UV bird protection sections 30. This could lead to birds perceiving this larger gap as a flight path, thus significantly minimizing the bird protection function due to this incorrect relative positioning. However, this is avoided, or rather the risk of such a misalignment is reduced, because even in the VIS range, as in Figure 9 As shown by the relative positioning of the two mounting marks 40, this misalignment is apparent to the fitter, so that he will recognize this assembly as faulty and avoid it.

[0048] In the Figure 11Figure 7 to 10 shows a detail for the butt joint arrangement. To enable gap-free arrangement of the foil products 10 side by side, an overlap UL is formed during assembly, which is then cut off, preferably after the adhesive bond to the building envelope 100 has been completed. This is referred to here as the cutting allowance SZ and is taken into account, in particular, in the formation of the geometric correlation of the UV bird protection sections 30 and thus in the formation of the bird protection position VP. In the embodiment of the Figure 11A further advantage is that the assembly marking 40 is integrated into the cutting allowance SZ, so that by cutting off the overlap UL as the final assembly step, the assembly marking 40 is removed from the film product 10 as part of the cutting allowance SZ. After this last step, the assembly marking 40 is no longer present and no longer interferes with the film body 20.

[0049] The Figure 12 The finished product is shown, in which the facade elements 110 with their facade base bodies contain the foil products 10 and thus the building or building envelope 100 is provided with the desired bird protection function. Reference symbol list

[0050] 10 Film product 20 Film body 30 UV bird protection section 40 Mounting mark 42 Alignment section 44 Information section 46 Origin section 100 Building envelope 110 Facade element 112 Facade base body VP Bird protection position SZ Cut allowance UL Overlap UV / UV area VIS / VIS area

Claims

1. Film product (10) for application to a building envelope (100), in particular a transparent partial section of the building envelope (100), for protection against bird impact, comprising a film body (20) with a planar extension, wherein the film body (20) has at least one UV bird protection section (30) with an optical effect in the UV range (UV) as a UV bird protection function, wherein the at least one UV bird protection section (30) has a bird protection position (VP) in relation to the film body (20), further having at least one installation marking (40) with an optical effect in the VIS range (VIS) visible to humans, wherein the installation marking (40) has at least one orientation section (42) indicating the bird protection position (VP) of the at least one UV bird protection section (30) in the VIS range (VIS).

2. Film product (10) according to claim 1, characterised in that the orientation section (42) has an orientation and / or a position that correlates with the orientation of the at least one UV bird protection section (30), in particular being aligned along the orientation of the at least one UV bird protection section (30), and / or at least partially corresponds to the bird protection position (VP).

3. Film product (10) according to one of the preceding claims, characterised in that the at least one orientation section (42) has an information section (44) which includes visual information about the bird protection position (VP).

4. Film product (10) according to one of the preceding claims, characterised in that the bird protection position (VP) of the at least one UV bird protection section (30) takes at least one of the following forms: - extension of the at least one UV bird protection section (30) - location of the at least one UV bird protection section (30) in relation to the edges of the film body (20) - location of at least two UV bird protection sections (30) in relation to each other.

5. Film product (10) according to one of the preceding claims, characterised in that a surface side of the film body (20) is provided with a cover film, in particular to cover an adhesive surface of this surface side, wherein the installation marking (40) is at least partially arranged in and / or on this cover film.

6. Film product (10) according to one of the preceding claims, characterised in that the installation marking (40) is part of the film body (20), wherein the installation marking (40) is preferably continuous and / or repetitive in design.

7. Film product (10) according to claim 6, characterised in that the installation marking (40), in particular the at least one orientation section (42), has a temporary effect in the VIS range (VIS), and / or the installation marking (40), in particular the at least one orientation section (42), is only visible from one side of the film body (20).

8. Film product (10) according to one of the preceding claims, characterised in that the at least one orientation section (42) is visible at the edge of the spectrum visible to humans, towards the UV range (UV), in particular in the range between 5 and 20 nm distance from the UV range (UV).

9. Film product (10) according to one of the preceding claims, characterised in that the installation marking (40) has an origin section (46) indicating the origin of the film product (10) which is in particular at least partly formed by the orientation section (42).

10. Film product (10) according to one of the preceding claims, characterised in that the bird protection position (VP) of the at least one UV bird protection section (30) includes a trimming offset (SZ) which is trimmed off when installing on the building envelope (100).

11. Film product (10) according to claim 10, characterised in that the installation marking (40), in particular as part of the at least one orientation section (42), indicates the trimming offset (SZ) qualitatively and / or quantitatively.

12. Film product (10) according to one of the claims 10 or 11, characterised in that the installation marking (40) is at least partly arranged in the trimming offset (SZ).

13. Method for applying a film product (10) having the features of one of the claims 1 to 12 to a building envelope (100), comprising the following steps: - determining the bird protection position (VP) of the at least one UV bird protection section (30) with the aid of the at least one orientation section (42), - arranging the film product (10) on the building envelope (100) on the basis of the determined bird protection position (VP), - affixing the film product (10) in the arranged position.

14. Method according to claim 13, characterised in that the film product (10) is applied directly adjacent to a film product (10) already applied to the building envelope (100), comprising in particular the following steps: - arranging the film product (10) with an overlap (UL) over the film product (10) already applied, - trimming off the overlap (UL).

15. Façade element (110) for a partial section of a building envelope (100), in particular in the form of a window or a glass element, comprising a façade base body (112) having a film product (10) with the features of one of the claims 1 to 12, wherein the installation marking (40) is part of the film body (10) of the film product (10).