A roof thermal insulation system

Abstract

The present invention provides a roof thermal insulation system. It comprises a plurality of legs evenly distributed on the roof, a plurality of fiber cement boards are placed on the legs, a wind shield is detachably provided around the periphery of the system, one side of the fiber cement board and the wind shield is coated with a reflective heat insulation paint, and the other side of the fiber cement board and the wind shield is coated with a heat absorbing heat insulation paint. The system has the advantages of light weight, high modularity, and convenient construction and installation.

Description

Technical Field

[0001] The present invention relates to the field of construction, and in particular to a roof thermal insulation system. Background Art

[0002] The country's new housing reform policy is to eliminate the need for high-rise construction and large-scale demolition and reconstruction. Instead, it aims to renovate and repair existing homes to improve living comfort. These older homes are often over 20 years old, and the design specifications at the time had low insulation requirements. Top-floor rooms are often cold in the winter and hot in the summer, requiring full air conditioning in the summer and heating in the winter, resulting in significant energy waste.

[0003] In southern my country and parts of northern China, rooftop vapor barriers are also used. For example, small concrete benches are placed on the roof to provide shade and ventilation in the summer, which is also very effective. However, this system has two drawbacks: first, it only provides ventilation and insulation in the summer, not in the winter; second, the system is heavy, and many older homes were not designed with this load in mind, resulting in many houses being unusable. Summary of the Invention

[0004] To address the deficiencies in the prior art, the present invention provides a roof thermal insulation system having the advantages of light weight, high modularity, and convenient construction and installation.

[0005] The present invention is achieved through the following technical solutions:

[0006] A roof thermal insulation system includes a plurality of legs evenly distributed on the roof, a plurality of fiber cement boards are placed on the legs, and a windshield is detachably provided around the periphery of the system. One side of the fiber cement board and the windshield is coated with a reflective thermal insulation paint, and the other side of the fiber cement board and the windshield is coated with a heat-absorbing thermal insulation paint.

[0007] Preferably, the reflective heat-insulating paint is white or silver paint.

[0008] Preferably, the heat-absorbing and heat-insulating coating is a black coating.

[0009] Preferably, the gaps between adjacent limiting cement boards are sealed with sealing tape.

[0010] Preferably, the legs are composite plastic modules.

[0011] Preferably, the inner material of the supporting legs is foam plastic, which is light in weight and has the effects of heat preservation and heat insulation. The outside of the foam plastic is covered with a waterproof and fireproof inorganic coating.

[0012] Preferably, the fiber cement board is assembled from a plurality of pieces, and a first mortise and tenon structure is formed between adjacent fiber cement boards, and a waterproof seal is provided at the joint of the mortise and tenon structure.

[0013] Preferably, a plug-in slot is provided on the side surface of the support leg, and a plug-in block that cooperates with the plug-in slot is provided on the inner surface of the baffle.

[0014] Preferably, a second mortise and tenon structure is formed between the connecting blocks of adjacent baffles.

[0015] This system achieves winter heating by flipping the panels and removing the windshield. In winter, the black side of the fiber cement panels is placed toward the atmosphere, absorbing sunlight's heat. This heat is then transferred to the insulation cavity through the fiber cement panels. Windshields are placed around the system, and the gaps between the panels are sealed with sealing tape, creating a warm air cavity that heats the roof and raises the temperature of the rooms below. In summer, the windshields are removed, and the white or silver side of the fiber cement panels is placed toward the sky, reflecting sunlight. Air circulates through the cavity beneath the panels, removing summer heat and preventing direct sunlight from reaching the roof. Tests comparing rooms with and without this system revealed that the temperature in the former was 2-3°C higher in winter and 3-4°C lower in summer. Calculations indicate that the former saves 20%-30% in energy.

[0016] The main material used in this system is cement products, which are waterproof, fireproof and corrosion-resistant. The load per unit area is small, and the roof will generally not be overloaded.

[0017] The entire system has a small specific gravity, but the individual components have a large specific gravity, so strong winds will not blow away the system.

[0018] This system protects the roof felt waterproof layer and can extend the service life of the felt by 1-2 times.

[0019] The single component of this system is light in weight, easy to install and move, and can be operated by strong workers, so the investment and maintenance costs are low and it is easy to promote.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention can insulate heat in summer and keep warm in winter.

[0022] 2. The main material of the present invention is fireproof and waterproof cement products. The service life of cement products is equivalent to the service life of houses. Cement products have a high specific gravity and are not easily blown away by strong winds.

[0023] 3. The present invention protects the waterproof layer of linoleum and prolongs the service life of the linoleum.

[0024] 4. The installation and flapping of the present invention are simple and quick, can be done by strong workers, and the engineering manufacturing and maintenance costs are low.

[0025] 5. This invention uses foam plastic as the legs, effectively reducing material weight, reducing the roof's load, and extending the roof's service life. The foam plastic is coated with an inorganic coating to achieve effective waterproofing and fireproofing. Multiple legs jointly support the fiber cement board. In summer, the baffles are removed to allow ventilation between the legs and the fiber cement board to block heat. In winter, the baffles are installed and connected to the legs to seal the gaps between the legs, preventing cold air from entering between the fiber cement board and the roof. This allows the thermal insulation system to achieve both summer heat insulation and winter heat preservation.

[0026] 6. The mortise and tenon structure makes the baffle easy to disassemble and assemble, simple to operate and firmly connected.

[0027] 7. Waterproof seals are installed between adjacent fiber cement boards to prevent water leakage at the joints and enhance the waterproof function. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 A top view of one structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 Cross-sectional view of AA;

[0031] Figure 3 This is a front view of embodiment 3 of the present invention;

[0032] Figure 4 This is a front view of the fourth embodiment of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of a fourth embodiment of the present invention;

[0034] In the figure: 1. fiber cement board, 2. supporting leg, 3. wind deflector, 4. sealing tape, 5. second baffle, 5-1. second plug-in block, 6. first baffle, 6-1. first plug-in block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] Example 1:

[0037] like Figure 1-2 As shown, the present invention discloses a roof thermal insulation system, in which a plurality of legs 2 are provided above the roof waterproofing felt, and each group of four legs forms a rectangular combination (a square is a special case of a rectangle, and the term "rectangle" is used here to include both squares and rectangles, and the scope of reference is larger.), and a fiber cement board 1 is added above each rectangular leg combination, that is, four legs are provided below the four corner points of each fiber cement board, and a plurality of fiber cement boards are spliced ​​together to form a thermal insulation roof system, and the board seams between adjacent fiber cement boards are sealed with sealing tape. The fiber cement board has the advantages of being not easy to deform, not easy to warp, and being light in weight, and is very suitable for use in the thermal insulation and sun protection layer of the roof. In order to reduce the load-bearing capacity of the roof, the legs are made of a composite of foam plastic and a waterproof and fireproof coating.

[0038] During summer use, the legs support the fiber cement board above the roof's waterproofing felt. The upper fiber cement board reflects sunlight, preventing high temperatures from penetrating the roof. Ventilation channels are formed between the multiple legs below the fiber cement board, helping to promptly remove heat from the roof and cool it down. During winter use, windshields 3 are installed around the sides of the fiber cement board. All gaps between the boards are sealed with sealing tape 4. The fiber cement board and the side baffles work together to isolate the cold air from the outside from the roof. A cavity is formed between the fiber cement board, the baffles, and the roof. This cavity prevents heat from the room from escaping, thereby helping to keep the room warm.

[0039] Example 2:

[0040] If winter heating is not considered (such as in southern my country), the following measures can be taken:

[0041] 1. Remove the windshield;

[0042] 2. Remove the heat-absorbing layer (black paint) of the fiber cement board and windshield;

[0043] 3. Remove the sealing tape and keep only the reflective layer (white or silver coating) of the fiber cement board;

[0044] 4. The height of the supporting legs is slightly higher than that of the supporting legs in the first embodiment.

[0045] Example 3:

[0046] like Figure 3 As shown, to reduce the load on the roof, the legs are made of foam plastic, making them lightweight, heat-insulating, sound-absorbing, and shock-absorbing. To achieve waterproof and fireproof purposes, an inorganic coating is applied to the exterior of the foam plastic.

[0047] Example 4:

[0048] The present invention adds a mortise and tenon structure to the previous embodiments, facilitating assembly and disassembly and enhancing connection strength. Adjacent fiber cement boards are designed to be overlapped or plugged together, and waterproof sealing tape is installed at the joints to prevent rainwater from entering the structure through the joints. The sealing tape is made of an elastic material and is squeezed into the joints between adjacent fiber cement boards during installation. The tape then deforms using its restorative force to squeeze the tape into the joints. Two slots are provided on the sides of the legs, each perpendicular to the other. The inner side of the first baffle 6 is provided with a plurality of first plug-in blocks 6-1 that mate with the first slots. The inner side of the second baffle 5 is provided with a plurality of second plug-in blocks 5-1 that mate with the second slots. A third slot is provided on the side of the second plug-in block. When the second plug-in block is inserted into the second slot, both sides of the third slot are coaxially adjacent to the first slot. The first plug-in block is then inserted into both the first and third slots. With this arrangement, the baffle can enhance its overall strength in winter after being connected to the legs through the mortise and tenon structure, preventing the baffle or cement limit plate from being blown away in windy weather. When the baffle needs to be removed for ventilation and heat dissipation in summer, it is only necessary to remove the first baffle and the second baffle horizontally in sequence. The operation is simple and convenient.

[0049] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A roof thermal insulation system, characterized in that: It comprises a plurality of legs evenly distributed on the roof, a plurality of fiber cement boards are placed on the legs, a wind shield is detachably provided around the periphery of the system, one side of the fiber cement board and the wind shield is coated with a reflective heat-insulating paint, and the other side of the fiber cement board and the wind shield is coated with a heat-absorbing heat-insulating paint; The legs are composite plastic modules; The foam plastic has the functions of light weight, heat preservation and heat insulation, and the exterior of the foam plastic is covered with a waterproof and fireproof coating; The fiber cement board is composed of multiple pieces assembled together, and a first mortise and tenon structure is formed between adjacent fiber cement boards, and a waterproof seal is provided at the joint of the mortise and tenon structure; The side surface of the supporting leg is provided with a plug-in slot, and the inner surface of the windshield is provided with a plug-in block matched with the plug-in slot; A second mortise and tenon structure is formed between the plug-in blocks of adjacent baffles; This system achieves the purpose of winter heating by flipping the board and removing the windshield. In winter, the black side of the fiber cement board is placed toward the atmosphere to fully absorb the heat of the sun. This heat is transferred to the insulation cavity through the fiber cement board. The windshield is placed around the system, and the gaps between the boards are sealed with sealing tape to form a hot air insulation cavity, which heats the roof to increase the temperature of the house under the roof. In summer, the windshield is removed and the white or silver side of the fiber cement board is placed toward the sky to reflect the sunlight. The air circulates from the cavity under the fiber cement board, taking away the summer heat and preventing the sun from directly hitting the roof.

2. A roof thermal insulation system according to claim 1, characterized in that: The reflective heat-insulating paint is white or silver paint.

3. A roof thermal insulation system according to claim 1, characterized in that: The heat-absorbing and heat-insulating coating is a black coating.

4. A roof thermal insulation system according to claim 1, characterized in that: The gaps between adjacent limiting cement boards are sealed with sealing tape.

5. A roof thermal insulation system according to claim 1, characterized in that: The baffle is a composite foam plastic module, and the exterior of the composite foam plastic module is covered with a waterproof and fireproof coating.

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