Roof waterproof system

Abstract

A roof waterproof system is composed of a building roof waterproof structure and a parapet wall waterproof structure and is structurally characterized in that the upper side of a base layer / heat preservation layer of the building roof waterproof structure is coated with a layer of waterproof mortar with the thickness of 2-12 mm, and the base layer is reinforced and sealed. A layer of asphalt-based waterproof coating can be arranged on the upper side. A layer of high-extensibility double-sided self-adhesive waterproof roll is arranged on the upper side of the waterproof mortar layer or the asphalt-based waterproof coating layer, and a layer of fluorocarbon weather-proof film is paved on the upper side of the double-sided self-adhesive waterproof roll. The parapet wall base layer is coated with weather-proof waterproof mortar, a hanging net is arranged in the middle, and a drainage ditch is arranged at the junction of the lower side of the parapet wall middle hanging net and the roof waterproof structure and communicated with the waterproof mortar layer. A layer of double-sided padding-free self-adhesive waterproof roll is laid on the outer side of the parapet wall weather-proof waterproof mortar, and a layer of fluorocarbon weather-proof film is laid on the outer side of the parapet wall weather-proof waterproof mortar. According to the roof waterproof structure, through base layer sealing, waterproof mortar bottoming and exposed weather resistance design of the double-face self-adhesion coiled material and the fluorocarbon film, the good waterproof effect can be achieved under the condition that the total load of the waterproof structure is reduced. And the weather resistance is excellent when the coating can be exposed for use.

Description

Technical Field

[0001] This utility model relates to the field of waterproof material construction, specifically a roof waterproofing system. Background Technology

[0002] As the first line of defense in building waterproofing, the quality of roof waterproofing systems directly affects the overall waterproofing effect of the building structure. Research and design of roof waterproofing systems have always been a major area of ​​focus in waterproofing engineering materials and construction. With the rapid development of waterproofing systems in recent years, the concept of site-specific and prevention-oriented waterproofing has become the main design and planning approach. The promulgation and implementation of the "General Code for Waterproofing of Buildings and Municipal Engineering" GB 55030-2022 has placed new requirements on the planning and design of roof waterproofing systems. The old design scheme of two-layer primary waterproofing has been changed to a three-layer design scheme with a roll coating composite. Therefore, considering the importance of roof waterproofing design and the corresponding specific waterproofing requirements of the structure, further extending the design of roof waterproofing systems while meeting the new requirements of GB 55030-2022 has significant practical application value. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by designing a roof waterproofing system that meets the requirements of the new GB 55030-2022 standard, thereby comprehensively improving the application effect and reliability of the roof waterproofing system. This roof waterproofing system consists of two parts: a waterproof structure for the building's roof slab and a waterproof structure for the parapet wall, as follows:

[0004] a: Waterproof structure of building roof slab, the building roof slab can be provided with waterproof mortar layer (1), asphalt-based waterproof coating layer (2), high elongation double-sided self-adhesive waterproof membrane layer (3), fluorocarbon weather-resistant membrane layer (7) in sequence; or waterproof mortar layer (1), high elongation double-sided self-adhesive waterproof membrane layer (3), fluorocarbon weather-resistant membrane layer (7) in sequence.

[0005] b: Parapet wall waterproof structure, the parapet wall is provided with weather-resistant waterproof mortar layer (4), central hanging mesh (5), double-sided non-woven self-adhesive waterproof membrane layer (6), and fluorocarbon weather-resistant membrane layer (7) from the inside to the outside.

[0006] Preferably, the waterproof mortar layer is a single-component or two-component waterproof mortar with a designed thickness of 2-12mm. When an asphalt-based waterproof coating layer (2) is provided on the upper layer, the thickness of the waterproof mortar layer (1) is 2-6mm.

[0007] Preferably, the asphalt-based waterproof coating is a non-curing rubber asphalt waterproof coating, an emulsified asphalt waterproof coating, or a high-viscosity anti-slip asphalt-based waterproof coating, with a designed thickness of 2.0-3.0 mm.

[0008] Preferably, the high-elongation double-sided self-adhesive waterproof membrane is a polyester-based self-adhesive waterproof membrane with a thickness of 3-4 mm, or a wet-laid non-reinforced double-sided self-adhesive membrane with a thickness of 1.5-2.0 mm.

[0009] Preferably, the weather-resistant waterproof mortar is prepared by mixing one of pure acrylic emulsion, styrene-acrylic emulsion, styrene-butadiene emulsion, and silicone-acrylic emulsion with aggregate, wherein the ratio of emulsion component to aggregate component is 1:4-8, and the thickness is set to 3-6mm.

[0010] Preferably, the centrally placed hanging mesh is a 5*5-10*10 fiberglass mesh structure, extending from the weather-resistant waterproof mortar layer of the parapet wall to the waterproof mortar layer of the base layer, and overlapping the base layer plane by more than 30cm.

[0011] Preferably, the double-sided self-adhesive waterproof membrane for the parapet wall is a wet-laid, non-woven double-sided self-adhesive membrane with a thickness of 1.5-2.0mm.

[0012] Preferably, the fluorocarbon weather-resistant film is a PET or PE structural film with a fluorocarbon film coating, wherein the thickness of the structural film is 0.06-0.15 mm and the thickness of the fluorocarbon coating is 0.01-0.02 mm.

[0013] The advantage of this utility model lies in addressing the issue that existing materials and design schemes do not meet the actual usage conditions of roof waterproofing projects and the requirements of the latest "General Specification for Waterproofing of Building and Municipal Engineering" GB 55030-2022 standard. It proposes a novel exposed waterproofing structure—a coating-coating-roll-weather-resistant membrane composite structure—that can meet the Class I waterproofing requirements for roof waterproofing projects. This waterproofing structure design has the following advantages: ① A multi-layer waterproofing structure: base layer reinforcement + middle layer mortar / coating sealing + outer layer double-sided self-adhesive waterproof membrane reinforcement + outermost weather-resistant fluorocarbon membrane coating, ensuring excellent composite waterproofing effect while maintaining low load on the main waterproofing structure. ② The mortar and weather-resistant mortar structures provide sealing protection for the base layer. ③ The outer fluorocarbon structural membrane can be a large-size structure for self-adhesive application, reducing overlap seams during roll material construction. ④ Easy disassembly: repairs can be achieved by directly replacing the surface fluorocarbon structural membrane without damaging the underlying structure, further reducing subsequent maintenance costs of the waterproofing structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the waterproof structure of this utility model;

[0016] In the diagram: 1. Waterproof mortar layer; 2. Asphalt-based waterproof coating layer; 3. High-elongation double-sided self-adhesive waterproof membrane layer; 4. Weather-resistant waterproof mortar layer; 5. Centrally placed mesh; 6. Double-sided non-woven self-adhesive waterproof membrane layer; 7. Fluorocarbon weather-resistant membrane layer; Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Example 1:

[0019] A roof waterproofing system comprises the following structure:

[0020] a: Waterproof structure of building roof slab, the building roof slab is provided with waterproof mortar layer (1), high elongation double-sided self-adhesive waterproof membrane layer (3), and fluorocarbon weather-resistant membrane layer (7) in sequence;

[0021] b: Parapet wall waterproof structure, the parapet wall is provided with weather-resistant waterproof mortar layer (4), central hanging mesh (5), double-sided non-woven self-adhesive waterproof membrane layer (6), and fluorocarbon weather-resistant membrane layer (7) from the inside to the outside.

[0022] The waterproof mortar layer is a single-component waterproof mortar with a designed thickness of 8mm.

[0023] The high-elongation double-sided self-adhesive waterproof membrane is a polyester-based self-adhesive waterproof membrane with a thickness of 3mm.

[0024] The weather-resistant waterproof mortar is made of pure acrylic emulsion and aggregate, wherein the ratio of emulsion component to aggregate component is 1:4, and the thickness is set at 6mm.

[0025] The centrally placed hanging mesh is a 5*5 fiberglass mesh structure, extending from the weather-resistant waterproof mortar layer of the parapet wall to the waterproof mortar layer of the base layer, and overlapping the base layer plane by 30cm.

[0026] The parapet wall uses a double-sided, non-woven, self-adhesive waterproof membrane, which is a wet-laid, non-woven, double-sided self-adhesive membrane with a thickness of 1.5mm.

[0027] The fluorocarbon weather-resistant film is a PET structural film with a fluorocarbon coating, wherein the structural film thickness is 0.15 mm and the fluorocarbon coating thickness is 0.01 mm.

[0028] Example 2:

[0029] A roof waterproofing system comprises the following structure:

[0030] a: Waterproof structure of building roof slab, the building roof slab is provided with waterproof mortar layer (1), asphalt-based waterproof coating layer (2), high elongation double-sided self-adhesive waterproof membrane layer (3), and fluorocarbon weather-resistant membrane layer (7) in sequence;

[0031] b: Parapet wall waterproof structure, the parapet wall is provided with weather-resistant waterproof mortar layer (4), central hanging mesh (5), double-sided non-woven self-adhesive waterproof membrane layer (6), and fluorocarbon weather-resistant membrane layer (7) from the inside to the outside.

[0032] The waterproof mortar layer is a two-component waterproof mortar with a designed thickness of 6mm.

[0033] The asphalt-based waterproof coating is a non-curing rubber asphalt waterproof coating with a designed thickness of 3.0 mm.

[0034] The high-elongation double-sided self-adhesive waterproof membrane is a wet-laid, non-woven double-sided self-adhesive membrane with a thickness of 2.0 mm.

[0035] The weather-resistant waterproof mortar is made of styrene-butadiene emulsion and aggregate, wherein the ratio of emulsion component to aggregate component is 1:6, and the thickness is set at 6mm.

[0036] The centrally placed hanging mesh is a 10*10 fiberglass mesh structure that extends from the weather-resistant waterproof mortar layer of the parapet wall to the waterproof mortar layer of the base layer, and overlaps with the base layer plane by 40cm.

[0037] The parapet wall uses a double-sided, non-woven, self-adhesive waterproof membrane, which is wet-laid and has a thickness of 2.0mm.

[0038] The fluorocarbon weather-resistant film is a PE structural film with a fluorocarbon coating, wherein the structural film thickness is 0.09 mm and the fluorocarbon coating thickness is 0.02 mm.

[0039] Example 3

[0040] A roof waterproofing system comprises the following structure:

[0041] a: Waterproof structure of building roof slab, the building roof slab is provided with waterproof mortar layer (1), asphalt-based waterproof coating layer (2), high elongation double-sided self-adhesive waterproof membrane layer (3), and fluorocarbon weather-resistant membrane layer (7) in sequence;

[0042] b: Parapet wall waterproof structure, the parapet wall is provided with weather-resistant waterproof mortar layer (4), central hanging mesh (5), double-sided non-woven self-adhesive waterproof membrane layer (6), and fluorocarbon weather-resistant membrane layer (7) from the inside to the outside.

[0043] The waterproof mortar layer is a single-component waterproof mortar with a designed thickness of 10mm.

[0044] The asphalt-based waterproof coating is emulsified asphalt waterproof coating 2.0.

[0045] The high-elongation double-sided self-adhesive waterproof membrane is a polyester-based self-adhesive waterproof membrane with a thickness of 3mm.

[0046] The weather-resistant waterproof mortar is made of silicone acrylic emulsion and aggregate, wherein the ratio of emulsion component to aggregate component is 1:8, and the thickness is set at 3mm.

[0047] The centrally placed hanging mesh is an 8*8 fiberglass mesh structure that extends from the weather-resistant waterproof mortar layer of the parapet wall to the waterproof mortar layer of the base layer, and overlaps the base layer plane by 30cm.

[0048] The parapet wall uses a double-sided, non-woven, self-adhesive waterproof membrane, which is wet-laid and has a thickness of 2.0mm.

[0049] The fluorocarbon weather-resistant film is a PET structural film with a fluorocarbon coating, wherein the structural film thickness is 0.09 mm and the fluorocarbon coating thickness is 0.015 mm.

[0050] Example 4

[0051] 1. A roof waterproofing system, comprising the following structure:

[0052] a: Waterproof structure of building roof slab, the building roof slab is provided with waterproof mortar layer (1), high elongation double-sided self-adhesive waterproof membrane layer (3), and fluorocarbon weather-resistant membrane layer (7) in sequence;

[0053] b: Parapet wall waterproof structure, the parapet wall is provided with weather-resistant waterproof mortar layer (4), central hanging mesh (5), double-sided non-woven self-adhesive waterproof membrane layer (6), and fluorocarbon weather-resistant membrane layer (7) from the inside to the outside.

[0054] The waterproof mortar layer is a single-component waterproof mortar with a designed thickness of 12mm.

[0055] The high-elongation double-sided self-adhesive waterproof membrane is a wet-laid, non-woven double-sided self-adhesive membrane with a thickness of 2.0 mm.

[0056] The weather-resistant waterproof mortar is made of styrene-butadiene emulsion and aggregate, wherein the ratio of emulsion component to aggregate component is 1:6.5, and the thickness is set at 5mm.

[0057] The centrally placed hanging mesh is a 5*5 fiberglass mesh structure, extending from the weather-resistant waterproof mortar layer of the parapet wall to the waterproof mortar layer of the base layer, and overlapping the base layer plane by 30cm.

[0058] The parapet wall uses a double-sided, non-woven, self-adhesive waterproof membrane, which is a wet-laid, non-woven, double-sided self-adhesive membrane with a thickness of 1.5mm.

[0059] The fluorocarbon weather-resistant film is a PET structural film with a fluorocarbon coating, wherein the structural film thickness is 0.12 mm and the fluorocarbon coating thickness is 0.01 mm.

[0060] Working Principle: ① Multi-layer waterproof structure: base layer reinforcement + middle layer mortar / coating sealing + outer layer double-sided self-adhesive waterproof membrane reinforcement + outermost weather-resistant fluorocarbon membrane coating. This ensures excellent composite waterproofing while maintaining low load on the main waterproof structure. ② The mortar and weather-resistant mortar structure provides sealing and protection to the base layer, preventing cracking and seepage in the underlying concrete structure over long-term use. ③ The outer fluorocarbon membrane can be applied in large sizes using self-adhesive bonding, reducing overlap seams during membrane application. ④ Easy disassembly: simply replace the surface fluorocarbon membrane for repair without damaging the underlying structure, further reducing maintenance costs.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A roof waterproofing system, comprising the following structure: a: Waterproof structure of building roof slab, the building roof slab can be provided with waterproof mortar layer (1), asphalt-based waterproof coating layer (2), high elongation double-sided self-adhesive waterproof membrane layer (3), fluorocarbon weather-resistant membrane layer (7) in sequence; or waterproof mortar layer (1), high elongation double-sided self-adhesive waterproof membrane layer (3), fluorocarbon weather-resistant membrane layer (7) in sequence. b: Parapet wall waterproof structure, the parapet wall is provided with weather-resistant waterproof mortar layer (4), central hanging mesh (5), double-sided non-woven self-adhesive waterproof membrane layer (6), and fluorocarbon weather-resistant membrane layer (7) from the inside to the outside.

2. The roof waterproofing structure according to claim 1, characterized in that, The waterproof mortar layer (1) is a single-component or two-component waterproof mortar with a designed thickness of 2-12mm. When an asphalt-based waterproof coating layer (2) is provided on the upper layer, the thickness of the waterproof mortar layer (1) is 2-6mm.

3. The roof waterproofing structure according to claim 1, characterized in that, The asphalt-based waterproof coating is one of the following: non-curing rubber asphalt waterproof coating, emulsified asphalt waterproof coating, or high-viscosity anti-slip asphalt-based waterproof coating, with a designed thickness of 2.0-3.0 mm.

4. The roof waterproofing structure according to claim 1, characterized in that, The high-elongation double-sided self-adhesive waterproof membrane is a polyester-based self-adhesive waterproof membrane with a thickness of 3-4mm, or a wet-laid non-reinforced double-sided self-adhesive membrane with a thickness of 1.5-2.0mm.

5. The roof waterproofing structure according to claim 1, characterized in that, The weather-resistant waterproof mortar is formulated with one of pure acrylic emulsion, styrene-acrylic emulsion, styrene-butadiene emulsion, and silicone-acrylic emulsion and aggregate, wherein the ratio of emulsion component to aggregate component is 1:4-8, and the thickness is set to 3-6mm.

6. The roof waterproofing structure according to claim 1, characterized in that, The centrally placed hanging mesh is a 5*5-10*10 fiberglass mesh structure, extending from the weather-resistant waterproof mortar layer of the parapet wall to the waterproof mortar layer of the base layer, and overlapping the base layer plane by more than 30cm.

7. The roof waterproofing structure according to claim 1, characterized in that, The double-sided self-adhesive waterproof membrane for the parapet wall is a wet-laid, non-woven, double-sided self-adhesive membrane with a thickness of 1.5-2.0mm.

8. The roof waterproofing structure according to claim 1, characterized in that, The fluorocarbon weather-resistant film is a PET or PE structural film with a fluorocarbon coating, wherein the thickness of the structural film is 0.06-0.15 mm and the thickness of the fluorocarbon coating is 0.01-0.02 mm.

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