Root resistant composite sheet for planted roofs

Abstract

The application relates to the technical field of composite coiled material, in particular to a root-penetration-resistant composite coiled material for planting roof, which comprises, from bottom to top, a strong glue layer, a modified asphalt layer, an isolation layer, a root-blocking layer, a non-woven fabric layer, a water-absorbing cotton layer and a dust-free cloth layer, and the layers are fixedly connected by strong glue bonding, a plurality of root-blocking grooves are formed in the root-blocking layer, quicklime is arranged in the root-blocking grooves, waterproof membranes are fixedly arranged at the openings of the root-blocking grooves, part of the waterproof membranes protrude from the root-blocking grooves at intervals and form a wave-shaped structure, and a reinforcing net is arranged between the non-woven fabric layer and the waterproof membranes, so that the non-woven fabric layer forms a wave-shaped protruding structure through the reinforcing net. The application can effectively prevent plant roots from penetrating the coiled material, can store water to a certain extent, can provide water for the soil on the composite coiled material, and has a wide application prospect in the technical field of composite coiled material.

Description

Technical Field

[0001] This invention relates to the field of composite roofing membrane technology, and in particular to a root-penetration resistant composite roofing membrane for green roofs. Background Technology

[0002] In recent years, with the continuous expansion of urban construction, buildings in cities are becoming increasingly dense, but the green space in the living environment is becoming smaller and smaller. Therefore, building gardens on rooftops and planting flowers, vegetables, shrubs and other green plants has become a trend in future urban development. Planting green plants on rooftops can effectively purify the air, improve and beautify the environment, and also achieve functions such as saving land, saving energy, reducing dust and noise, increasing urban green coverage, reducing the heat island effect, collecting and delaying rainwater discharge, and extending the life of the roof system.

[0003] The first problem to solve when planting green plants on the roof is waterproofing. Currently, modified bitumen waterproof membranes are widely used, but they are easily penetrated by plant roots, causing roof leaks. In severe cases, they can even affect the structure of the building and pose serious safety hazards. Therefore, a composite membrane that solves the above problems is needed. Summary of the Invention

[0004] To address the current problem that the most commonly used waterproofing solution is modified bitumen waterproof membrane, which is easily penetrated by plant roots, causing roof leaks and even affecting the building structure, posing serious safety hazards, a root-penetration resistant composite membrane for green roofs has been invented.

[0005] The technical solution of the present invention comprises, from bottom to top, a strong adhesive layer, a modified asphalt layer, an isolation layer, a root barrier layer, a non-woven fabric layer, an absorbent cotton layer, and a dust-free cloth layer. Each layer is bonded and fixed together by CCB reactive adhesive. The root barrier layer has several root barrier grooves, and quicklime is placed in the root barrier grooves. A waterproof membrane is sealed and fixed at the opening of the root barrier grooves. Part of the waterproof membrane protrudes from the root barrier grooves at intervals, forming a wavy structure. A reinforcing mesh is provided between the non-woven fabric layer and the waterproof membrane, forming a wavy protrusion structure of the non-woven fabric layer through the reinforcing mesh.

[0006] Preferably, the strong adhesive layer is CCB reactive adhesive.

[0007] Preferably, the isolation layer is a polypropylene polymer film.

[0008] Preferably, the root barrier layer is made of copper-plated metal, aluminum, or an aluminum alloy.

[0009] Preferably, the absorbent cotton layer is provided with a plurality of cotton ropes, one end of which extends to the lowest end of the recessed part of the wavy structure of the nonwoven fabric layer, and the other end penetrates the dust-free fabric layer.

[0010] The technical solution of the present invention can achieve the following beneficial effects: (1) Through the strong adhesive layer, it is easy to firmly bond and fix the entire roll material to the green roof, thereby protecting the green roof through the entire roll material, avoiding water leakage and plant roots penetrating the roll material and extending into the building, causing damage to the building; (2) Through the modified asphalt layer, an effective waterproof structure is formed, avoiding water seepage from the green roof; (3) Through the isolation layer, the overall tensile strength of the roll material is increased, and its puncture resistance is improved to a certain extent, and the harm of the original asphalt as a waterproof material to plants and geology is changed; (4) Through the root barrier layer, quicklime, and waterproof membrane, it is possible to effectively prevent plant roots from penetrating the roll material, and the quicklime reacts with water after the plant roots penetrate the waterproof membrane, releasing a large amount of heat and producing an alkaline solution, which can effectively kill the plant roots. This prevents plant roots from penetrating the roll material, and the independent design prevents quicklime from undergoing a chemical reaction and becoming ineffective, thus extending the lifespan of the roll material's root-blocking effect; (5) The non-woven fabric layer can block water from the upper layer of the roll material, effectively preventing quicklime in the root-blocking layer from coming into contact with water and undergoing a chemical reaction before plant roots penetrate the non-woven fabric layer, while also increasing the tensile strength of the entire roll material; (6) The absorbent cotton layer and cotton rope allow the absorbent cotton layer to store water to a certain extent, and the cotton rope transfers the water to the soil on the upper layer of the roll material, providing a certain degree of moisture to the soil on the upper layer of the roll material; (7) The dust-free cloth layer can protect the upper surface of the roll material, while not affecting the water in the soil above the roll material from entering the absorbent cotton layer; The technical solution of this invention has a wide application prospect in the field of composite roll material technology. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the root-penetration resistant composite membrane for planting roofs according to the present invention.

[0012] Figure 2 for Figure 1 Enlarged view of region A in the middle.

[0013] The components are: 1. strong adhesive layer, 2. modified asphalt layer, 3. isolation layer, 4. root barrier layer, 5. non-woven fabric layer, 6. absorbent cotton layer, 7. dust-free cloth layer, 8. cotton rope, 9. root barrier groove, 10. quicklime, and 11. waterproof membrane. Detailed Implementation

[0014] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0015] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0016] like Figure 1-2 The root-penetration resistant composite roofing membrane shown comprises, from bottom to top, a strong adhesive layer 1, a modified bitumen layer 2, a release layer 3, a root barrier layer 4, a non-woven fabric layer 5, an absorbent cotton layer 6, and a dust-free cloth layer 7. Each layer is bonded together with CCB reactive adhesive, forming a complete membrane and preventing separation. Furthermore, the CCB reactive adhesive layer 1 utilizes chemical modification technology to create a three-dimensional interpenetrating network of macromolecular structures between the layers. This chemical modification generates new chemical bonds that connect the layers, resulting in good flexibility, effective resistance to concrete cracking and external forces, stable performance, minimal temperature influence, no delamination, excellent aging resistance, and a longer service life.

[0017] like Figure 1-2 The root-penetration resistant composite membrane for green roofs shown has a CCB reactive adhesive layer, which facilitates a strong bond between the membrane and the green roof. At the same time, the properties of CCB reactive adhesive can effectively resist concrete cracking and damage from external forces.

[0018] like Figure 1-2The green roof root-penetration resistant composite membrane shown has a polypropylene polymer film as the isolation layer 3. This polypropylene polymer film forms a layer with high tensile strength and puncture resistance, effectively improving its puncture resistance and preventing the membrane from being punctured and thus reducing its performance. It also isolates the modified bitumen layer 2 from the layer above, preventing the modified bitumen layer 2 from causing damage to plants and the geology as a waterproofing material.

[0019] like Figure 1-2 The root-penetration resistant composite membrane for green roofs shown has a root barrier layer 4 made of copper-plated metal, aluminum, or aluminum alloy. This allows for effective root barrier against plant roots, while the copper-plated metal, aluminum, or aluminum alloy material extends the membrane's root-barrier lifespan. The root barrier layer 4 has several root-barrier grooves 9, each containing quicklime 10. The quicklime 10 reacts chemically with water to generate heat and an alkaline liquid, killing any plant roots extending into the grooves and preventing root penetration. A waterproof membrane 11 is sealed to the openings of the root barrier grooves 9 using CCB reactive adhesive. This membrane isolates the quicklime 10 from the outside environment, preventing it from reacting with water and generating heat and an alkaline liquid before the membrane is penetrated by plant roots. Part of the waterproof membrane 11 protrudes into the root-blocking groove 9 at intervals, forming a wavy structure. This allows the root-blocking groove 9 to store more quicklime 10, while the wavy structure also makes the connection between the waterproof membrane 11 and the non-woven fabric layer 5 more secure.

[0020] like Figure 1-2 The root-penetration resistant composite membrane for green roof shown has a reinforcing mesh between the non-woven fabric layer 5 and the waterproof membrane 11. The reinforcing mesh is one of the following: metal mesh, plastic mesh, etc. It forms a wavy convex structure by means of the reinforcing mesh, so as to shape the non-woven fabric layer 5 by means of the reinforcing mesh, thereby making it easier for the non-woven fabric layer 5 to form and maintain the wavy structure.

[0021] like Figure 1-2 The root-penetration resistant composite roofing membrane shown has several cotton ropes 8 inside the absorbent cotton layer 6. These ropes store water, which then contacts the soil above the membrane, providing moisture to the soil and promoting plant growth. One end of each cotton rope 8 extends to the bottom of the wavy recess in the non-woven fabric layer 5, while the other end penetrates the cleanroom fabric layer 7. This allows the cotton ropes 8 to effectively transport water from the absorbent cotton layer 6 to the soil above the membrane. Simultaneously, the cleanroom fabric layer 7 protects the entire upper surface of the membrane without hindering the penetration of water from the soil above the membrane into the absorbent cotton layer 6 for storage.

[0022] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.

[0023] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A root-penetration-resistant composite membrane for green roofs, characterized in that, From bottom to top, the layers consist of a strong adhesive layer (1), a modified asphalt layer (2), an isolation layer (3), a root barrier layer (4), a non-woven fabric layer (5), an absorbent cotton layer (6), and a dust-free cloth layer (7). Each layer is bonded together with CCB reactive adhesive. The root barrier layer (4) has several root barrier grooves (9). Quicklime (10) is placed inside the root barrier grooves (9). A waterproof membrane (11) is sealed and fixed at the opening of the root barrier grooves (9). Part of the waterproof membrane (11) protrudes from the root barrier grooves (9) at intervals to form a wavy structure. A reinforcing mesh is provided between the non-woven fabric layer (5) and the waterproof membrane (11). The reinforcing mesh makes the non-woven fabric layer (5) form a wavy convex structure. Several cotton ropes (8) are provided inside the absorbent cotton layer (6). One end of the cotton rope (8) extends to the bottom of the recess of the wavy structure of the non-woven fabric layer (5), and the other end penetrates the dust-free cloth layer (7).

2. The root-penetration-resistant composite membrane for green roofs according to claim 1, characterized in that, The isolation layer (3) is a polypropylene polymer film.

3. The root-penetration-resistant composite membrane for green roofs according to claim 1, characterized in that, The root barrier layer (4) is made of copper-plated metal, aluminum, or an aluminum alloy.

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