Spliced butyl rubber self-adhesive waterproof coiled material
By adopting a stacked butyl adhesive self-adhesive structure in the waterproof roll, including a strong cross film layer, butyl adhesive layer and isolation layer, the problems of waterproof rolls are not tightly overlapped and not firmly bonded, and efficient waterproofing effect and firm bonding are achieved.
Patent Information
- Application Number
- CN202421472503.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing waterproof coils are prone to gaps and leaks when overlapping, and are not firmly bonded and easily disengaged.
It adopts a stacked butyl adhesive self-adhesive waterproof coil, including a strong cross film layer, a butyl adhesive layer and an isolation layer. The butyl glue layer consists of a wet butyl glue layer and a pre-paved butyl glue layer. The isolation layer includes an isolation film layer and an isolation sand layer, which is used to form a waterproof bonding area and achieve the full adhesion effect of the two pairs of coils.
By forming a waterproof bonding zone, the overlapping surface of the waterproof coil is fully glued, avoiding leakage, and improving the waterproof effect and bonding firmness.
Smart Images
Figure CN222990069U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of waterproof coiled materials, and particularly to an overlapping butyl rubber self-adhesive waterproof coiled material. Background Art
[0002] Waterproof coiled materials are mainly used in building walls, roofs, highways, etc., effectively preventing water penetration and protecting buildings from water erosion. As a leak-free connection between the engineering foundation and the building, waterproof coiled materials are the first barrier for the overall project waterproofing.
[0003] The existing overlapping method between waterproof coiled materials requires selecting a suitable adhesive and evenly applying the adhesive on the overlapping surfaces of two waterproof coiled materials to ensure a uniform thickness of the applied adhesive.
[0004] Therefore, the following problems are likely to occur when two coiled materials overlap:
[0005] First, the overlap between the two waterproof coiled materials is not tight, there are gaps between the overlapping surfaces, resulting in leakage; second, the two waterproof coiled materials are not firmly bonded and are prone to coming apart during use. Utility Model Content
[0006] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide an overlapping butyl rubber self-adhesive waterproof coiled material with improved waterproof effect and firm bonding.
[0007] The purpose of the present disclosure is achieved through the following technical solutions:
[0008] An overlapping butyl rubber self-adhesive waterproof coiled material, comprising:
[0009] A high-strength cross-film layer;
[0010] A butyl rubber layer, the butyl rubber layer includes a wet-laid butyl rubber layer and a pre-laid butyl rubber layer, the wet-laid butyl rubber layer is connected to the lower surface of the high-strength cross-film layer, and the pre-laid butyl rubber layer is connected to the upper surface of the high-strength cross-film layer;
[0011] An isolation layer, the isolation layer includes an isolation film layer and an isolation sand layer, the isolation film layer is disposed on the side of the wet-laid butyl rubber layer away from the high-strength cross-film layer; the isolation sand layer is disposed on the side of the pre-laid butyl rubber layer away from the high-strength cross-film layer;
[0012] Wherein, a first waterproof bonding area is formed between the side surface of the isolation film layer and the side of the wet-laid butyl rubber layer away from the high-strength cross-film layer; a second waterproof bonding area is formed between the side surface of the isolation sand layer and the side of the pre-laid butyl rubber layer away from the high-strength cross-film layer.
[0013] In one embodiment, the wet-laid butyl rubber layer includes an isolation film butyl rubber layer and a first side film butyl rubber layer bonded to the isolation film butyl rubber layer, and the isolation film butyl rubber layer and the first side film butyl rubber layer are of an integrally formed structure; and / or,
[0014] The first waterproof bonding area is located at the first side film butyl rubber layer.
[0015] In one embodiment, the pre-laid butyl rubber layer includes an isolation sand butyl rubber layer and a second side film butyl rubber layer bonded to the isolation sand butyl rubber layer, and the isolation sand butyl rubber layer and the second side film butyl rubber layer are of an integrally formed structure; and / or,
[0016] The second waterproof bonding area is located at the second side film butyl rubber layer.
[0017] In one embodiment, the laminated butyl rubber self-adhesive waterproofing coil further includes a first waterproof side film, and the first waterproof side film is disposed on the first side film butyl rubber layer.
[0018] In one embodiment, the laminated butyl rubber self-adhesive waterproofing coil further includes a second waterproof side film, and the second waterproof side film is disposed on the second side film butyl rubber layer.
[0019] In one embodiment, the width of the first waterproof side film is 7.5 cm - 8.5 cm.
[0020] In one embodiment, the width of the second waterproof side film is 7.5 cm - 8.5 cm.
[0021] In one embodiment, the isolation sand layer is a mullite sand layer, and the mullite sand layer is disposed on the isolation sand butyl rubber layer.
[0022] In one embodiment, the thickness of the wet-laid butyl rubber layer is 0.35 cm - 0.45 mm.
[0023] In one embodiment, the thickness of the pre-laid butyl rubber layer is 0.25 mm - 0.35 mm.
[0024] In one embodiment, the thickness of the high-strength cross film layer is 0.9 mm - 1 mm.
[0025] In one embodiment, the high-strength cross film layer is a 45-degree obliquely laminated high-density polyethylene film layer.
[0026] In one embodiment, the isolation film layer is a peelable isolation film layer.
[0027] Compared with the prior art, the present disclosure has at least the following advantages:
[0028] 1) Since a first waterproof bonding area is formed between the side surface of the isolation film layer and the side of the wet-laid butyl rubber layer away from the high-strength cross film layer, and a second waterproof bonding area is formed between the side surface of the isolation sand layer and the side of the pre-laid butyl rubber layer away from the high-strength cross film layer, the first waterproof bonding area and the first waterproof bonding area are used for the self-adhesion of the pre-laid butyl rubber and the wet-laid butyl rubber when two waterproof coiled materials are overlapped, achieving the effect of full adhesion of the overlapping surface of the two waterproof coiled materials, avoiding leakage between the overlapping surfaces, and thus improving the waterproof effect of the waterproof coiled material.
[0029] 2) Since the high-strength cross film layer has a certain structural strength, and the wet-laid butyl rubber layer and the pre-laid butyl rubber layer use the high-strength cross film layer as an intermediate structure, the stability of the connection between the wet-laid butyl rubber layer and the pre-laid butyl rubber layer can be ensured; since the surface of the waterproof coiled material is provided with an isolation sand layer, the anti-slip and anti-sticking effects during the exposed use of the waterproof coiled material are achieved; and since the isolation film layer is arranged on the side of the wet-laid butyl rubber layer away from the high-strength cross film layer, the first waterproof bonding area and the isolation film layer are on the same side of the wet-laid butyl rubber layer; the isolation sand layer is arranged on the side of the pre-laid butyl rubber layer away from the high-strength cross film layer, so that the second waterproof bonding area and the isolation sand layer are on the same side of the pre-laid butyl rubber layer. When two waterproof coiled materials are bonded, the pre-laid butyl rubber layers and the wet-laid butyl rubber layers of the two waterproof coiled materials are respectively overlapped and adhered to the first waterproof bonding area and the second waterproof bonding area, ensuring the firmness of the bonding of the two waterproof coiled materials. Description of the Drawings
[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present disclosure and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0031] Figure 1 It is a schematic structural diagram of an overlapping butyl rubber self-adhesive waterproof coiled material according to an embodiment of the present disclosure;
[0032] Figure 2 is Figure 1 The partial enlarged view shown at A in
[0033] Reference numerals: 10, overlapping butyl rubber self-adhesive waterproof coiled material; 100, high-strength cross film layer; 210, wet-laid butyl rubber layer; 211, isolation film butyl rubber layer; 212, first side film butyl rubber layer; 220, pre-laid butyl rubber layer; 221, isolation sand butyl rubber layer; 222, second side film butyl rubber layer; 300, isolation film layer; 400, isolation sand layer; 500, first waterproof bonding area; 600, second waterproof bonding area; 700, first waterproof side film; 800, second waterproof side film. Detailed implementation manners
[0034] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present disclosure more thorough and comprehensive.
[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.
[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0037] To better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure will be further described in detail below with specific embodiments:
[0038] As Figures 1 to 2 shown, the laminated butyl rubber self-adhesive waterproofing membrane 10 of an embodiment includes a strong cross-membrane layer 100, a butyl rubber layer and an isolation layer; the butyl rubber layer includes a wet-laid butyl rubber layer 210 and a pre-laid butyl rubber layer 220, the wet-laid butyl rubber layer 210 is connected to the lower surface of the strong cross-membrane layer 100, and the pre-laid butyl rubber layer 220 is connected to the upper surface of the strong cross-membrane layer 100; the isolation layer includes an isolation membrane layer 300 and an isolation sand layer 400, the isolation membrane layer 300 is disposed on the side of the wet-laid butyl rubber layer 210 away from the strong cross-membrane layer 100; the isolation sand layer 400 is disposed on the side of the pre-laid butyl rubber layer 220 away from the strong cross-membrane layer 100; wherein, a first waterproof bonding area 500 is formed between the side surface of the isolation membrane layer 300 and the side of the wet-laid butyl rubber layer 210 away from the strong cross-membrane layer 100; a second waterproof bonding area 600 is formed between the side surface of the isolation sand layer 400 and the side of the pre-laid butyl rubber layer 220 away from the strong cross-membrane layer 100.
[0039] It can be understood that since the pre-laid butyl rubber layer 220 and the wet-laid butyl rubber layer 210 are respectively connected to the upper surface and the lower surface of the laminated butyl rubber self-adhesive waterproof coil 10, the pre-laid butyl rubber layer 220 and the wet-laid butyl rubber layer 210 have good waterproof effects, ensuring the waterproof effect of the laminated butyl rubber self-adhesive waterproof coil 10 during use. Also, since the release film layer 300 is arranged on the side of the wet-laid butyl rubber layer 210 away from the high-strength cross-film layer 100, the release film layer 300 can be self-adhered to the building where the waterproof coil needs to be laid, ensuring the firmness of the adhesion of the waterproof coil.
[0040] It can also be understood that since the side of the release film layer 300 and the side of the wet-laid butyl rubber layer 210 away from the high-strength cross-film layer 100 form a first waterproof bonding area 500, and the side of the separation sand layer 400 and the side of the pre-laid butyl rubber layer 220 away from the high-strength cross-film layer 100 form a second waterproof bonding area 600, the first waterproof bonding area 500 and the first waterproof bonding area 500 are used for the self-adhesion of the pre-laid butyl rubber and the wet-laid butyl rubber when two pairs of waterproof coils overlap, achieving the effect of full adhesion of the overlapping surfaces of the two pairs of waterproof coils, avoiding leakage between the overlapping surfaces, and thus improving the waterproof effect of the waterproof coil.
[0041] It can further be understood that since the high-strength cross-film layer 100 has a certain structural strength, and the wet-laid butyl rubber layer 210 and the pre-laid butyl rubber layer 220 use the high-strength cross-film layer 100 as the intermediate structure, the stability of the connection between the wet-laid butyl rubber layer 210 and the pre-laid butyl rubber layer 220 can be ensured. Since the separation sand layer 400 is arranged on the surface of the waterproof coil, the effects of anti-slip and anti-sticking during the exposed use of the waterproof coil are achieved. Also, since the release film layer 300 is arranged on the side of the wet-laid butyl rubber layer 210 away from the high-strength cross-film layer 100, the first waterproof bonding area 500 and the release film layer 300 are on the same side of the wet-laid butyl rubber layer 210; the separation sand layer 400 is arranged on the side of the pre-laid butyl rubber layer 220 away from the high-strength cross-film layer 100, so that the second waterproof bonding area 600 and the separation sand layer 400 are on the same side of the pre-laid butyl rubber layer 220. When two pairs of waterproof coils are bonded, the pre-laid butyl rubber layers 220 and the wet-laid butyl rubber layers 210 of the two pairs of waterproof coils are respectively overlapped and adhered to the first waterproof bonding area 500 and the second waterproof bonding area 600, ensuring the firmness of the adhesion of the two pairs of waterproof coils.
[0042] Such as Figure 1As shown, in one embodiment, the wet-laid butyl rubber layer 210 includes a separator film butyl rubber layer 211 and a first side film butyl rubber layer 212 bonded to the separator film butyl rubber layer 211. The separator film butyl rubber layer 211 and the first side film butyl rubber layer 212 are of an integrally formed structure. It can be understood that the separator film butyl rubber layer 211 is used to connect with the separator film layer 300. Since the separator film butyl rubber layer 211 and the first side film butyl rubber layer 212 are of an integrally formed structure, the firmness of the connection between the separator film butyl rubber layer 211 and the first side film butyl rubber layer 212 is ensured, thus ensuring the waterproof effect of the waterproof coiled material structure.
[0043] In one embodiment, the first waterproof bonding area 500 is located at the first side film butyl rubber layer 212, so that when two pairs of waterproof coiled materials are bonded, it provides a bonding position for the wet-laid butyl rubber and the pre-laid butyl rubber, ensuring the accuracy of the overlapping position of the wet-laid butyl rubber and the pre-laid butyl rubber, thereby improving the firmness of the bonding of the two pairs of waterproof coiled materials.
[0044] Similarly, as Figure 1 shown, in one embodiment, the pre-laid butyl rubber layer 220 includes a separator sand butyl rubber layer 221 and a second side film butyl rubber layer 222 bonded to the separator sand butyl rubber layer 221. The separator sand butyl rubber layer 221 and the second side film butyl rubber layer 222 are of an integrally formed structure. It can be understood that the separator sand butyl rubber layer 221 is used to connect with the separator sand layer 400. Since the separator sand butyl rubber layer 221 and the second side film butyl rubber layer 222 are of an integrally formed structure, the firmness of the connection between the separator sand butyl rubber layer 221 and the second side film butyl rubber layer 222 is ensured, thus ensuring the waterproof effect of the waterproof coiled material structure.
[0045] In one embodiment, the second waterproof bonding area 600 is located at the second side film butyl rubber layer 222, so that when two pairs of waterproof coiled materials are bonded, it provides a bonding position for the wet-laid butyl rubber and the pre-laid butyl rubber, ensuring the accuracy of the overlapping position of the wet-laid butyl rubber and the pre-laid butyl rubber, thereby improving the firmness of the bonding of the two pairs of waterproof coiled materials.
[0046] In one embodiment, the overlapping butyl rubber self-adhesive waterproof coiled material 10 further includes a first waterproof side film 700. The first waterproof side film 700 is disposed on the first side film butyl rubber layer 212. The first waterproof side film 700 is used to bond two pairs of waterproof coiled materials. During construction, the first waterproof side film 700 is torn off to expose the wet-laid butyl rubber. The wet-laid butyl rubber has a good waterproof effect and can effectively prevent water seepage at the bonding part.
[0047] Similarly, in one of the embodiments, the overlapping butyl self-adhesive waterproof coiled material 10 further includes a second waterproof edge film 800. The second waterproof edge film 800 is disposed on the second edge film butyl glue layer 222. The second waterproof edge film 800 is used for bonding two pairs of waterproof coiled materials. During construction, the second waterproof edge film 800 is torn off to expose the pre-laid butyl glue, realizing the self-adhesion of the wet-laid butyl glue and the pre-laid butyl glue of two pairs of waterproof coiled materials, further realizing the bonding of the overlapping surfaces of two pairs of waterproof coiled materials, avoiding leakage at the overlapping surfaces of two pairs of waterproof coiled materials, and thus improving the waterproof effect of the bonding of the waterproof coiled materials.
[0048] As Figure 1 and Figure 2 shown, in one of the embodiments, the width of the first waterproof edge film 700 is 7.5 cm - 8.5 cm. It can be understood that since the width of the first waterproof edge film 700 is 7.5 cm - 8.5 cm, the effect of full adhesion of the overlapping surface is ensured when bonding two pairs of waterproof coiled materials. On the one hand, the waterproof effect of the waterproof coiled material is improved, and on the other hand, the firmness during the overlapping of the waterproof coiled materials is ensured.
[0049] Similarly, as Figure 1 shown, in one of the embodiments, the width of the second waterproof edge film 800 is 7.5 cm - 8.5 cm. It can be understood that since the width of the second waterproof edge film 800 is 7.5 cm - 8.5 cm, the effect of full adhesion of the overlapping surface is ensured when bonding two pairs of waterproof coiled materials. On the one hand, the waterproof effect of the waterproof coiled material is improved, and on the other hand, the firmness during the overlapping of the waterproof coiled materials is ensured.
[0050] In one of the embodiments, the isolation sand layer 400 is a mullite sand layer. The mullite sand layer is disposed on the isolation sand butyl glue layer 221. The mullite sand layer has the effects of anti-slip and anti-sticking, and can achieve the anti-slip and anti-sticking effects when the waterproof coiled material is used outdoors.
[0051] As Figure 1 shown, in one of the embodiments, the thickness of the wet-laid butyl glue layer 210 is 0.35 cm - 0.45 mm. It can be understood that when the thickness of the wet-laid butyl glue layer 210 is 0.35 cm - 0.45 mm, the wet-laid butyl glue layer 210 has good waterproof performance, making the overlapping butyl self-adhesive waterproof coiled material 10 have good waterproof performance.
[0052] As Figure 1 shown, in one of the embodiments, the thickness of the pre-laid butyl glue layer 220 is 0.25 mm - 0.35 mm. It can be understood that when the thickness of the pre-laid butyl glue layer 220 is 0.25 mm - 0.35 mm, the pre-laid butyl glue layer 220 has good waterproof performance, making the overlapping butyl self-adhesive waterproof coiled material 10 have good waterproof performance.
[0053] In one embodiment, the thickness of the strong cross film layer 100 is 0.9 mm - 1 mm. It can be understood that when the thickness of the strong cross film layer 100 is 0.9 mm - 1 mm, the strong cross film layer 100 has good structural strength, ensuring the firm connection between the wet-laid butyl rubber layer 210 and the pre-laid butyl rubber layer 220.
[0054] In one embodiment, the strong cross film layer 100 is a high-density polyethylene film layer laminated obliquely at 45 degrees. It can be understood that the high-density polyethylene film layer laminated obliquely at 45 degrees has a composite multi-layer film structure, ensuring that the strong cross film layer 100 has high dimensional stability, thermal stability, bi-directional tear resistance, high strength and high ductility, thereby improving the stability of the waterproof coiled material structure and the firmness of bonding.
[0055] In one embodiment, the release film layer 300 is a removable release film layer 300. On the one hand, it ensures that the surface of the waterproof coiled material is protected from abrasion during transportation and installation. On the other hand, when in use, the release film layer 300 is removed, enabling the adhesive surface to perform the bonding operation and ensuring the firmness of the bonding of the waterproof coiled material.
[0056] Compared with the prior art, the present disclosure has at least the following advantages:
[0057] 1) Since a first waterproof bonding area 500 is formed between the side surface of the release film layer 300 and the side of the wet-laid butyl rubber layer 210 away from the strong cross film layer 100, and a second waterproof bonding area 600 is formed between the side surface of the isolation sand layer 400 and the side of the pre-laid butyl rubber layer 220 away from the strong cross film layer 100, the first waterproof bonding area 500 and the first waterproof bonding area 500 are used for the self-adhesion of the pre-laid butyl rubber and the wet-laid butyl rubber when two pairs of waterproof coiled materials are overlapped, achieving the effect of full adhesion of the overlapping surface of two pairs of waterproof coiled materials, avoiding leakage between the overlapping surfaces, and thus improving the waterproof effect of the waterproof coiled material.
[0058] 2) Since the strong cross-membrane layer 100 has a certain structural strength, with the strong cross-membrane layer 100 as the intermediate structure between the wet-laid butyl rubber layer 210 and the pre-laid butyl rubber layer 220, the stability of the connection between the wet-laid butyl rubber layer 210 and the pre-laid butyl rubber layer 220 can be ensured; since the surface of the waterproof coiled material is provided with an isolation sand layer 400, the anti-slip and anti-sticking effects are achieved when the waterproof coiled material is used outdoors; and since the isolation membrane layer 300 is arranged on the side of the wet-laid butyl rubber layer 210 away from the strong cross-membrane layer 100, the first waterproof bonding area 500 and the isolation membrane layer 300 are on the same surface of the wet-laid butyl rubber layer 210; the isolation sand layer 400 is arranged on the side of the pre-laid butyl rubber layer 220 away from the strong cross-membrane layer 100, so that the second waterproof bonding area 600 and the isolation sand layer 400 are on the same surface of the pre-laid butyl rubber layer 220. When two pairs of waterproof coiled materials are bonded, the pre-laid butyl rubber layers 220 and the wet-laid butyl rubber layers 210 of the two pairs of waterproof coiled materials are respectively overlapped and adhered to the first waterproof bonding area 500 and the second waterproof bonding area 600, ensuring the firmness of the bonding of the two pairs of waterproof coiled materials.
[0059] The above-described embodiments merely represent several implementation manners of the present disclosure. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.
Claims
1. A stacked butyl self-adhesive waterproofing membrane, characterized in that: include: Strong cross film layer; A butyl rubber layer, wherein the butyl rubber layer comprises a wet-laid butyl rubber layer and a pre-laid butyl rubber layer, wherein the wet-laid butyl rubber layer is connected to the lower surface of the strong cross-film layer, and the pre-laid butyl rubber layer is connected to the upper surface of the strong cross-film layer; An isolation layer, the isolation layer comprising an isolation film layer and an isolation sand layer, the isolation film layer being arranged on a side of the wet-laid butyl rubber layer away from the strong cross-film layer; the isolation sand layer being arranged on a side of the pre-laid butyl rubber layer away from the strong cross-film layer; Among them, the side of the isolation film layer and the side of the wet-laid butyl rubber layer away from the strong cross membrane layer form a first waterproof bonding area; the side of the isolation sand layer and the side of the pre-laid butyl rubber layer away from the strong cross membrane layer form a second waterproof bonding area.
2. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 1 is characterized in that: The wet-laid butyl rubber layer comprises an isolation film butyl rubber layer and a first side film butyl rubber layer bonded to the isolation film butyl rubber layer, wherein the isolation film butyl rubber layer and the first side film butyl rubber layer are an integrally formed structure; and / or, The first waterproof bonding area is located at the first edge film butyl rubber layer.
3. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 1 is characterized in that: The pre-laid butyl rubber layer comprises an isolation sand butyl rubber layer and a second side film butyl rubber layer bonded to the isolation sand butyl rubber layer, wherein the isolation sand butyl rubber layer and the second side film butyl rubber layer are an integrally formed structure; and / or, The second waterproof bonding area is located at the second edge film butyl rubber layer.
4. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 2 is characterized in that: The overlapping butyl rubber self-adhesive waterproof coiled material further comprises a first waterproof edge membrane, and the first waterproof edge membrane is arranged on the first edge membrane butyl rubber layer.
5. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 3 is characterized in that: The overlapping butyl rubber self-adhesive waterproof membrane further comprises a second waterproof edge membrane, and the second waterproof edge membrane is arranged on the second edge membrane butyl rubber layer.
6. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 4 is characterized in that: The width of the first waterproof edge membrane is 7.5 cm-8.5 cm.
7. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 5 is characterized in that: The width of the second waterproof edge membrane is 7.5 cm-8.5 cm.
8. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 3 is characterized in that: The isolation sand layer is a mullite sand layer, and the mullite sand layer is arranged on the isolation sand butyl rubber layer.
9. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 1 is characterized in that: The thickness of the wet-laid butyl rubber layer is 0.35 mm to 0.45 mm; and / or, The thickness of the pre-laid butyl rubber layer is 0.25mm-0.35mm; and / or, The thickness of the strong cross film layer is 0.9mm-1mm; The strong cross film layer is a high-density polyethylene film layer laminated at a 45-degree angle.
10. The overlapping butyl rubber self-adhesive waterproofing membrane according to claim 1 is characterized in that: The isolation film layer is a removable isolation film layer.