Double-layer fluorine plastic tile composite thermal insulation roof with high sealing and cold bridge prevention

CN224799789UActive Publication Date: 2026-09-25BAOTOU METALLURGY CONSTR RES WATER-PROOF ANTICORROSIVE SPECIAL ENGIN EERING CO
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Patent Information

Application Number
CN202522247598.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-09-25
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

1、结露与冷凝现象严重:在室内外温差较大的热工条件下,水蒸气易于在保温层内侧或金属板内表面发生凝结,导致保温材料受潮,进而显著提高其导热系数,会大大削弱保温性能;同时引发檩条及结构层锈蚀,甚至诱发霉菌滋生,对室内环境品质与结构安全构成威胁

Benefits of technology

1、本实用新型提供的一种高封闭防冷桥的双层氟塑瓦复合保温屋面,通过将保温层完全密封于由位于保温层下面的防潮分隔子系统和位于保温层上面的防水呼吸子系统构成的干燥的保温单元内,可以有效阻隔热交换路径,显著提升屋面整体热工性能,确保保温效果长期稳定。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of double-layer fluorine plastic tile composite heat preservation roof of high closed cold bridge prevention, it is related to heat preservation roof technical field;Including bearing layer, and heat preservation unit, it is located above bearing layer, including heat preservation layer, moisture-proof separation subsystem located below heat preservation layer and waterproof breathing subsystem located above heat preservation layer moisture-proof separation subsystem includes moisture-proof subsystem and is used to the bridge layer of physical isolation with below structure for the construction above heat preservation unit;Moisture-proof subsystem includes base layer and vapour barrier, base layer is located on bearing layer, vapour barrier is located on base layer, bridge layer is located on vapour barrier;Waterproof breathing subsystem includes waterproof air-permeable layer and protective layer, waterproof air-permeable layer is located on heat preservation layer, protective layer is located on waterproof air-permeable layer base layer and protective layer are EP fluorine plastic tile layer;The technical scheme of the utility model solves the problems, such as condensation phenomenon is serious, cold bridge effect is remarkable, fireproof performance is insufficient, durability and wind resistance performance are poor and other problems in prior art traditional roof.
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Description

Technical Field

[0001] This utility model relates to the field of thermal insulation roofing technology, and in particular to a double-layer fluoroplastic composite thermal insulation roofing with high sealing and cold bridge prevention. Background Technology

[0002] The key aspect of building insulation is the implementation of effective thermal insulation treatment, which usually adopts single-layer metal plate composite insulation roof or single-layer fluoroplastic tile composite roof. Its structural layers from top to bottom include: waterproof layer, waterproof and breathable layer, thermal insulation layer, vapor barrier layer and load-bearing layer.

[0003] However, traditional roof construction has the following problems: 1. Severe condensation and desiccation: Under thermal conditions with large temperature differences between indoors and outdoors, water vapor is prone to condensation on the inner side of the insulation layer or the inner surface of the metal plate, causing the insulation material to become damp, which in turn significantly increases its thermal conductivity and greatly weakens the insulation performance; at the same time, it causes rust on purlins and structural layers, and even induces mold growth, posing a threat to indoor environmental quality and structural safety.

[0004] 2. Significant cold bridge effect: Roof fasteners penetrate the insulation layer, forming continuous thermal bridge channels, resulting in a large amount of heat loss and condensation in the corresponding indoor areas, reducing the overall insulation efficiency of the roof.

[0005] 3. Insufficient fire resistance: Traditional insulation materials such as polystyrene and polyurethane have low flame retardant ratings, and flames spread rapidly under fire conditions, making it difficult to meet the higher fire safety standards of modern buildings.

[0006] 4. Poor durability and wind uplift resistance: Single-layer roof panels are prone to fatigue deformation under repeated negative wind pressure, and connection nodes are easily loosened, leading to wind uplift damage to the roof. The outer layer material has insufficient weather resistance and is susceptible to corrosion and aging, shortening its service life.

[0007] In summary, there is an urgent need to provide a new type of insulated roof that can comprehensively solve the above problems. Utility Model Content

[0008] The technical means adopted in this utility model are as follows: A double-layer fluoroplastic composite insulated roof with high sealing and anti-cold bridge properties includes: Load-bearing layer, and The insulation unit, located above the load-bearing layer, includes an insulation layer, a moisture-proof partition subsystem located below the insulation layer, and a waterproof breathing subsystem located above the insulation layer. The moisture-proof partition subsystem includes a moisture-proof subsystem and a thermal break layer for physically isolating the upper and lower structures of the insulation unit; the moisture-proof subsystem includes a base layer and a vapor barrier layer; the base layer is located on the load-bearing layer, the vapor barrier layer is located on the base layer, and the thermal break layer is located on the vapor barrier layer; The waterproof and breathable subsystem includes a waterproof and breathable layer and a protective layer. The waterproof and breathable layer is located on the insulation layer, and the protective layer is located on the waterproof and breathable layer. The base layer and protective layer are EP fluoroplastic tile layers; the thermal break layer is cold-formed galvanized steel purlin.

[0009] Furthermore, the load-bearing layer is made of galvanized cold-formed steel purlins.

[0010] Furthermore, the thickness of the base layer is 1.7mm.

[0011] Furthermore, the vapor barrier is a polypropylene A3310 vapor barrier membrane.

[0012] Furthermore, the thermal break layer is 2.5mm thick and 100mm high.

[0013] Furthermore, the insulation layer is a 100mm thick A1 grade rock wool layer.

[0014] Furthermore, the waterproof and breathable layer is a Type II waterproof and breathable membrane.

[0015] Furthermore, the thickness of the protective layer is 3.0 mm.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention provides a double-layer fluoroplastic tile composite thermal insulation roof with high sealing and anti-cold bridge. By completely sealing the insulation layer in a dry insulation unit consisting of a moisture-proof partition subsystem located below the insulation layer and a waterproof breathing subsystem located above the insulation layer, the heat exchange path can be effectively blocked, significantly improving the overall thermal performance of the roof and ensuring long-term stable insulation effect.

[0017] 2. A thermal break layer is set in the moisture-proof partition subsystem to support the structure above the thermal break layer and transfer the load to the main purlin of the load-bearing layer below; at the same time, it physically isolates the structure above the insulation unit from the structure below, fundamentally cutting off the cold bridge formed by the metal components, avoiding local condensation and energy loss, and greatly improving the insulation efficiency of the system.

[0018] 3. The base layer is tightly attached to the underside of the vapor barrier, serving not only as a physical protective layer to prevent damage to the vapor barrier, but also as an auxiliary sealing layer that works in conjunction with the vapor barrier to effectively improve the overall moisture-proof and airtightness of the system; the 1.7mm thickness provides reliable working support for construction workers during the installation phase of the roofing system.

[0019] 4. The insulation layer uses non-combustible A1-grade rock wool, thus eliminating the fire hazard of the insulation material itself at the source and meeting the fire safety requirements of building roofs. Rock wool can be made from recycled slag, has a high recyclability rate, and reduces building carbon emissions.

[0020] 5. The combined use of a vapor barrier and a waterproof and breathable layer creates a two-way humidity regulation mechanism. The vapor barrier effectively prevents indoor water vapor from penetrating into the insulation layer, while the waterproof and breathable layer prevents external liquid water from entering while allowing residual water vapor in the insulation layer to diffuse outward as steam, thus maintaining the insulation layer in a long-term dry state.

[0021] 6. Both the base layer and the protective layer are made of EP fluoroplastic tile, which has excellent weather resistance.

[0022] 7. The structure adopted by this utility model requires little or no special maintenance during its service life, achieving a near-maintenance-free operating state, and the total life cycle cost is far lower than that of traditional roofs.

[0023] 8. The structure adopted by this utility model allows the baseboard to be installed independently indoors. This installation process can be carried out in parallel with the construction of the outdoor insulation layer, breaking the process dependence in traditional construction and thus greatly shortening the overall construction period.

[0024] Based on the above reasons, this utility model can be widely promoted in fields such as insulated roofs. Attached Figure Description

[0025] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional view of a double-layer fluoroplastic composite insulated roof with high sealing and cold bridge prevention according to the present invention.

[0027] In the diagram: 1. Load-bearing layer; 2. Base layer; 3. Vapor barrier layer; 4. Thermal break layer; 5. Insulation layer; 6. Waterproof and breathable layer; 7. Protective layer. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. 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.

[0029] like Figure 1 As shown, this utility model provides a double-layer fluoroplastic tile composite thermal insulation roof with high sealing and cold bridge prevention, which is provided from bottom to top as a load-bearing layer 1, a base layer 2, a vapor barrier layer 3, a thermal break layer 4, a thermal insulation layer 5, a waterproof and breathable layer 6, and a protective layer 7. The load-bearing layer 1 is made of galvanized cold-formed steel purlins.

[0030] To improve thermal insulation performance, the roof insulation unit was improved. Insulation layer 5 is a 100mm thick, non-combustible, A1-grade rock wool layer, achieving inherent safety at the material level and effectively preventing fire spread. The rock wool used can be made from recycled slag, resulting in high material recyclability, reducing carbon emissions, and meeting national green building standards.

[0031] Given the physical property of rock wool material to easily absorb water, two subsystems are set on the upper and lower sides of the insulation layer 5, including a moisture-proof separation subsystem and a waterproof breathing subsystem, to create a dry and stable static air environment for the insulation layer 5.

[0032] Below the insulation layer 5, a base layer 2 and a vapor barrier layer 3 are installed to form a moisture-proof subsystem. The base layer 2 is made of 1.7mm thick EP fluoroplastic tile, which also serves as the interior ceiling finish. The vapor barrier layer 3 is preferably made of imported flame-retardant, moisture-proof, and corrosion-resistant polypropylene A3310 breathable membrane, which is tightly installed on the base layer 2 to prevent water vapor in the indoor environment from penetrating upwards to the insulation layer 5.

[0033] The moisture-proof subsystem and the thermal break layer 4 together constitute the moisture-proof partition subsystem. The thermal break layer 4 is a 2.5mm thick and 100mm high cold-formed galvanized steel purlin. Its core function is to physically isolate the upper and lower structures of the insulation unit, completely eliminate the cold bridge formed by metal components, ensure the continuity and integrity of the insulation layer 5, and improve the insulation efficiency by more than 30%. It supports the upper structure of the roof system and transfers the load to the main purlin of the load-bearing layer 1. It forms a stable base layer with the load-bearing layer 1, which further enhances the overall integrity and wind uplift resistance of the roof.

[0034] Above the insulation layer 5, a waterproof and breathable subsystem is formed by the waterproof and breathable layer 6 and the protective layer 7. The waterproof and breathable layer 6, using a type II waterproof and breathable membrane, is laid beneath the protective layer 7. While preventing the intrusion of external liquid water, the waterproof and breathable layer 6 allows moisture from within the insulation layer 5 to diffuse freely outwards. The protective layer 7, made of 3.0mm thick EP fluoroplastic shingles, serves as the primary waterproof and weather-resistant layer, resisting external rainwater erosion and climate corrosion. It prevents external water penetration while ensuring that any moisture that may accumulate inside the insulation layer 5 can escape, thus maintaining the dryness of the insulation layer 5 for a long time and significantly improving the system's durability.

[0035] The base layer 2 and the protective layer 7 are both EP fluoroplastic tile layers; the thickness of the base layer 2 is 1.7mm. The thickness of the protective layer 7 is 3.0mm. The double-layer fluoroplastic tile forms a double layer of ultra-strong weather-resistant protection. This structure gives the system excellent corrosion resistance, UV resistance, and self-cleaning properties, with a service life of up to 30 years or more, and is essentially maintenance-free.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A double-layer fluoroplastic composite insulated roof with high sealing and anti-cold bridging properties, characterized in that, include: Load-bearing layer, and The insulation unit, located above the load-bearing layer, includes an insulation layer, a moisture-proof partition subsystem located below the insulation layer, and a waterproof breathing subsystem located above the insulation layer. The moisture-proof partition subsystem includes a moisture-proof subsystem and a thermal break layer for physically isolating the upper and lower structures of the insulation unit; the moisture-proof subsystem includes a base layer and a vapor barrier layer; the base layer is located on the load-bearing layer, the vapor barrier layer is located on the base layer, and the thermal break layer is located on the vapor barrier layer; The waterproof and breathable subsystem includes a waterproof and breathable layer and a protective layer, wherein the waterproof and breathable layer is located on the insulation layer and the protective layer is located on the waterproof and breathable layer; The base layer and the protective layer are EP fluoroplastic tile layers; the thermal break layer is a cold-formed galvanized steel purlin.

2. The double-layer fluoroplastic composite thermal insulation roof with high sealing and anti-cold bridge properties according to claim 1, characterized in that, The load-bearing layer is a galvanized cold-formed steel purlin.

3. The double-layer fluoroplastic composite thermal insulation roof with high sealing and anti-cold bridge properties according to claim 1, characterized in that, The thickness of the base layer is 1.7 mm.

4. The double-layer fluoroplastic composite thermal insulation roof with high sealing and anti-cold bridge properties according to claim 1, characterized in that, The vapor barrier is a polypropylene A3310 vapor barrier membrane.

5. A double-layer fluoroplastic composite thermal insulation roof with high sealing and anti-cold bridging as described in claim 1, characterized in that, The thermal break layer is 2.5mm thick and 100mm high.

6. The double-layer fluoroplastic composite thermal insulation roof with high sealing and anti-cold bridging as described in claim 1, characterized in that, The insulation layer is a 100mm thick A1 grade rock wool layer.

7. A double-layer fluoroplastic composite thermal insulation roof with high sealing and anti-cold bridge properties according to claim 1, characterized in that, The waterproof and breathable layer is a type II waterproof and breathable membrane.

8. A double-layer fluoroplastic composite insulated roof with high sealing and anti-cold bridge properties according to claim 1, characterized in that, The thickness of the protective layer is 3.0 mm.