Novel composite energy-saving waterproof roof system
By introducing rigid polyurethane foam insulation layer and multi-layer waterproof design into the building roofing system, the problems of high construction difficulty, high cost and water absorption of the insulation layer in traditional roofing systems are solved, achieving improved energy-saving and waterproof performance and lightweight design.
Patent Information
- Application Number
- CN202423153097.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing building roofing systems suffer from problems such as high construction difficulty and cost in terms of waterproofing and energy saving, and the insulation layer is prone to water absorption, leading to increased energy consumption. Furthermore, they have failed to achieve lightweight design.
The new composite energy-saving and waterproof roofing system includes, from bottom to top, a roof structure layer, a first waterproof layer, a rigid polyurethane foam waterproof and thermal insulation layer, a second waterproof layer, and a protective layer. The rigid polyurethane foam thermal insulation layer has both thermal insulation and waterproof functions, serving as a waterproof layer. Additional waterproof layers are set above and below it to meet waterproofing specifications.
It achieves improved energy-saving and waterproofing effects, reduces waterproofing procedures and material usage, lowers construction difficulty and cost, and also realizes a lightweight design for the roofing system.
Smart Images
Figure CN223661220U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of low-carbon and energy-saving buildings, specifically to a novel composite energy-saving and waterproof roofing system. [Background Technology]
[0002] Currently, the most common structural forms of building roof systems are upright and inverted roofs. In an upright roof system, the insulation layer is placed on top of the waterproofing layer, while in an inverted roof system, the insulation layer is placed below the waterproofing layer. The "General Code for Waterproofing of Building and Municipal Engineering" GB55030-2022 has also been published and implemented, requiring that there be no fewer than three layers of Class I waterproofing and that the design service life of roof waterproofing projects be no less than 20 years. Both traditional inverted and upright roof systems require three layers of waterproofing to meet the Class I waterproofing requirements of GB55030-2022.
[0003] While these traditional roofing systems offer some insulation and waterproofing, they also have significant shortcomings. With increasing environmental awareness and technological advancements, the market demand for more efficient, environmentally friendly, and durable roofing systems is growing.
[0004] To improve the energy efficiency and waterproofing performance of roofs, existing practices mainly include: inverted roofs use multiple layers to enhance waterproofing, but this increases construction difficulty and cost; while upright roofs can prevent water from seeping into the insulation layer, they may still fail due to water accumulation under extreme weather conditions; in addition, both of these methods neglect an important aspect—how to make the roof system lighter and simplify the layers, requiring the insulation layer to also serve as a waterproofing layer. [Utility Model Content]
[0005] The technical problem to be solved by this utility model is to provide a new type of composite energy-saving and waterproof roofing system. Its structure is reasonably designed, reducing the waterproofing process required for traditional roofs, saving labor and materials, while effectively preventing the problem of increased energy consumption caused by water absorption of the insulation layer, and ensuring excellent waterproofing effect, thus realizing the lightweight design of the roofing system.
[0006] This utility model is implemented as follows:
[0007] A novel composite energy-saving and waterproof roofing system is disclosed, comprising, from bottom to top, a roof structural layer, a first waterproof layer, a rigid polyurethane foam waterproof and thermal insulation layer, a second waterproof layer, and a protective layer. The roof structural layer is a concrete or steel structure roof, which has been leveled. The rigid polyurethane foam waterproof and thermal insulation layer has a thickness of 30mm to 120mm and uses type II or type III rigid polyurethane foam.
[0008] The first waterproof layer and the second waterproof layer are composite layers of a 1.3-2mm polymer cement adhesive material layer and a 1.2mm polymer composite waterproof membrane layer, or a 1.0-2.0mm self-adhesive waterproof membrane (non-thermal melt), or a 1.0-2.0mm polymer cement waterproof coating.
[0009] Furthermore, the protective layer is a mortar layer with a thickness of 5 to 30 mm, or a reinforced concrete layer, facing brick or tile layer with a thickness of 30 to 40 mm.
[0010] The advantages of this utility model are:
[0011] The rigid polyurethane foam insulation layer of this utility model is made of type II or type III rigid polyurethane foam. In addition to its thermal insulation performance, it also has fireproof and waterproof functions and can be used as a waterproof layer. At the same time, a waterproof layer is set above and below the rigid polyurethane foam insulation layer. This not only meets the requirement of existing standards that there should be no less than three layers of primary waterproofing for roofs, but also saves one layer of waterproofing compared to the traditional upright or inverted type. It breaks through the limitations of traditional upright and inverted roof energy-saving waterproofing and forms a multi-layered composite waterproof roof with significant economic benefits.
[0012] In addition, since rigid polyurethane foam is used as the core of the waterproof layer, the sandwich-type waterproofing completely avoids the problem of reduced energy-saving effect caused by water absorption by the insulation layer. The waterproofing effect is obvious, saving labor and materials, and realizing an economical, lightweight, multi-layered energy-saving waterproof roofing system. [Attached Image Description]
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a schematic diagram of a novel composite energy-saving and waterproof roofing system according to this utility model.
Detailed Implementation Methods
[0015] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.
[0017] Please see Figure 1 As shown, this utility model discloses a novel composite energy-saving and waterproof roofing system. The composite energy-saving and waterproof roofing system, from bottom to top, consists of a roof structure layer 1, a first waterproof layer 2, a rigid polyurethane foam waterproof and thermal insulation layer 3, a second waterproof layer 4, and a protective layer 5. The roof structure layer 1 is a concrete structure roof or a steel structure roof. The thickness of the rigid polyurethane foam thermal insulation layer 3 is 30mm to 120mm, and the rigid polyurethane foam thermal insulation layer 3 uses type II or type III rigid polyurethane foam.
[0018] The first waterproof layer 2 and the second waterproof layer 4 are composite layers of a 1.3-2mm polymer cement adhesive material layer 11 and a 1.2mm polymer composite waterproof membrane layer 12, or a 1.0-2.0mm self-adhesive waterproof membrane 13, or a 1.0-2.0mm polymer cement waterproof coating.
[0019] In a preferred embodiment, the protective layer 5 is a mortar layer with a thickness of 5 to 30 mm, or a reinforced concrete layer, facing brick, or tile layer with a thickness of 30 to 40 mm.
[0020] The rigid polyurethane foam insulation layer of this utility model is made of type II or type III rigid polyurethane foam. In addition to its thermal insulation performance, it also has fireproof and waterproof functions and can be used as a waterproof layer. At the same time, a waterproof layer is set above and below the rigid polyurethane foam insulation layer. This not only meets the requirement of existing standards that there should be no less than three layers of primary waterproofing for roofs, but also saves one layer of waterproofing compared to the traditional upright or inverted type. It breaks through the limitations of traditional upright and inverted roof energy-saving waterproofing and forms a multi-layered composite waterproof roof with significant economic benefits.
[0021] In addition, since rigid polyurethane foam is used as the core of the waterproof layer, the sandwich-type waterproofing completely avoids the problem of reduced energy-saving effect caused by water absorption by the insulation layer. The waterproofing effect is obvious, saving labor and materials, and realizing an economical, lightweight, multi-layered energy-saving waterproof roofing system.
[0022] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.
Claims
1. A novel composite energy-saving and waterproof roofing system, characterized in that: The composite energy-saving and waterproof roofing system consists of a roof structure layer, a first waterproof layer, a rigid polyurethane foam waterproof and thermal insulation layer, a second waterproof layer, and a protective layer, arranged from bottom to top. The roof structure layer is either a concrete structure roof or a steel structure roof. The rigid polyurethane foam waterproof and thermal insulation layer has a thickness of 30mm to 120mm and uses type II or type III rigid polyurethane foam. The first waterproof layer and the second waterproof layer are composite layers of a 1.3-2mm polymer cement adhesive material layer and a 1.2mm polymer composite waterproof membrane layer, or a 1.0-2.0mm self-adhesive waterproof membrane, or a 1.0-2.0mm polymer cement waterproof coating.
2. The novel composite energy-saving and waterproof roofing system as described in claim 1, characterized in that: The protective layer is a mortar layer with a thickness of 5 to 30 mm, or a reinforced concrete layer, facing brick or tile layer with a thickness of 30 to 40 mm.