Ultra-low energy consumption roof gutter structure

Abstract

The utility model discloses a roof drainage ditch structure of ultralow energy consumption, roof panel is equipped with the layer of finding slope, waterproof layer, insulation layer, double -deck waterproof layer, isolation layer and protection layer from below to above in proper order, waterproof layer has the function of steam isolation, and between insulation layer, is equipped with double -deck vacuum heat insulating board between the position of the corresponding drainage ditch both sides slope starting point, insulation layer is the insulation layer made of high density graphite polystyrene board, between insulation layer and double -deck waterproof layer, is equipped with waterproof additional layer between the position of the corresponding drainage ditch both sides slope starting point, double -deck waterproof layer includes the glass fiber tire modified bitumen self -adhesion type waterproof roll material of below and the glass fiber tire modified bitumen hot melt type waterproof roll material of above, the utility model discloses the combination form of double -deck vacuum heat insulating board composite insulation layer is used at roof drainage ditch, reduces the thickness at the same time, guarantees the insulation performance of drainage ditch node.

Description

Technical Field

[0001] This utility model relates to the field of roof construction technology, and in particular to an ultra-low energy consumption roof drainage ditch structure. Background Technology

[0002] With the rapid development of ultra-low energy buildings in recent years, compared with existing conventional buildings, ultra-low energy buildings pay particular attention to the high-efficiency thermal insulation performance of the external envelope.

[0003] However, in practical applications, the insulation layer is thicker when using traditional insulation materials, especially in complex structures such as drainage ditches. This may make it difficult to ensure the continuity and sealing of the insulation layer, and may easily lead to obvious thermal defects and thermal bridging, affecting the overall energy efficiency.

[0004] like Figure 1 As shown, the thickness of conventional building roof insulation boards is thinner than that of ultra-low energy buildings. In order to ensure the effective water collection depth of drainage ditches, the bottom of the drainage ditches usually has no roof insulation board or the roof insulation board is extremely thin. The thermal insulation performance of the roof insulation board cannot achieve effective continuity, resulting in uneven heat conduction on the roof and the thermal bridge effect. This causes heat loss from the interior and also leads to mold, condensation, and even dripping on the interior surface, seriously affecting the building quality and living environment.

[0005] Therefore, in the structure of roof drainage ditches for ultra-low energy consumption buildings, how to ensure efficient insulation and prevent thermal bridging at the location of the drainage ditch has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of the above-mentioned defects of the prior art, the present invention provides an ultra-low energy consumption roof drainage ditch structure, the purpose of which is to ensure efficient heat preservation and no thermal bridge effect in the drainage ditch location in the ultra-low energy consumption building roof drainage ditch structure.

[0007] To achieve the above objectives, this utility model discloses an ultra-low energy consumption roof drainage ditch structure, which includes, from top to bottom, a roof panel, a slope-finding layer, a waterproof layer, a thermal insulation layer, a double-layer waterproof layer, an isolation layer, and a protective layer.

[0008] The waterproof layer has a vapor barrier function, and a double-layer vacuum insulation board is provided between the waterproof layer and the insulation layer at the position between the starting points of the slope on both sides of the corresponding drainage ditch.

[0009] The insulation layer is made of extruded polystyrene board (XPS) or high-density graphite polystyrene board (GEPS).

[0010] An additional waterproof layer is provided between the insulation layer and the double waterproof layer at the position between the starting points of the slope on both sides of the corresponding drainage ditch;

[0011] The double-layer waterproofing layer includes a fiberglass-reinforced modified bitumen self-adhesive waterproofing membrane at the bottom and a fiberglass-reinforced modified bitumen hot-melt waterproofing membrane at the top.

[0012] Preferably, the roof panel is made of reinforced concrete.

[0013] Preferably, sealant is provided on both the bottom and top of the double-layer vacuum insulation panel near the two sides, and the sealant is used to seal the gap between the double-layer vacuum insulation panel and the waterproof layer, as well as the gap between the double-layer vacuum insulation panel and the insulation layer.

[0014] Preferably, the double-layer waterproofing layer and the waterproofing layer are constructed using a dry construction method.

[0015] Preferably, the waterproof layer is a vapor barrier membrane laid on a cold-applied base coat.

[0016] The beneficial effects of this utility model are:

[0017] This invention employs a double-layer vacuum insulation board composite insulation layer at the roof drainage ditch, which reduces the thickness at this point while maintaining the insulation performance of the drainage ditch joint. This avoids significant thermal insulation defects in the building envelope caused by reduced insulation thickness at this point, thus achieving continuous and intact insulation of the building envelope for ultra-low energy consumption buildings.

[0018] The application of this utility model can improve the thermal insulation performance of this node in ultra-low energy consumption buildings and reduce the thermal bridge effect, thereby reducing building energy consumption and carbon emissions.

[0019] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0020] Figure 1 A schematic diagram of the existing technology is shown.

[0021] Figure 2 A schematic diagram of an embodiment of the present invention is shown. Detailed Implementation

[0022] Example

[0023] like Figure 2 As shown, this utility model discloses an ultra-low energy consumption roof drainage ditch structure, which includes, from bottom to top, a roof panel 1, a slope-finding layer 3, a waterproof layer 8, a thermal insulation layer 4, a double waterproof layer 5, an isolation layer 6, and a protective layer 7.

[0024] Among them, the waterproof layer 8 has a vapor barrier function, and a double-layer vacuum insulation board 2 is provided between the waterproof layer 8 and the insulation layer 4 at the position between the starting points of the slope on both sides of the corresponding drainage ditch.

[0025] Insulation layer 4 is an insulation layer made of extruded polystyrene board (XPS) or high-density graphite polystyrene board (GEPS).

[0026] An additional waterproof layer 10 is provided between the insulation layer 4 and the double waterproof layer 5 at the position between the starting points of the slope on both sides of the corresponding drainage ditch;

[0027] The double waterproof layer 5 includes a fiberglass-reinforced modified bitumen self-adhesive waterproof membrane 51 located below and a fiberglass-reinforced modified bitumen hot-melt waterproof membrane 52 located above.

[0028] This utility model addresses the issue of limited space at roof drainage ditches by employing a thinner, more thermally insulating double-layer vacuum insulation board 2 to enhance the insulation performance at the bottom of the drainage ditch. The double-layer vacuum insulation board 2 extends to the starting point of the drainage ditch slope on both sides. A high-density graphite polystyrene board insulation layer 4 is installed on the upper part of the double-layer vacuum insulation board 2 to protect it. A waterproof additional layer 10 is installed at the bottom of the drainage ditch. A double waterproof layer 5, consisting of a fiberglass-reinforced modified bitumen self-adhesive waterproof membrane 51 and a fiberglass-reinforced modified bitumen hot-melt waterproof membrane 52, is installed on top of the insulation layer 4.

[0029] In some embodiments, the roof panel 1 is made of reinforced concrete.

[0030] In some embodiments, sealant 21 is provided on the bottom and top of the double-layer vacuum insulation panel 2 near the two side edges. The sealant 21 seals the gap between the double-layer vacuum insulation panel 2 and the waterproof layer 8, as well as the gap between the double-layer vacuum insulation panel 2 and the insulation layer 4.

[0031] In some embodiments, dry application is used between the double waterproof layer 5 and the waterproof layer 8.

[0032] In some embodiments, the waterproof layer 8 is a vapor barrier membrane laid on a cold-applied primer coating.

[0033] In practical applications, a 2% slope is first formed on the roof panel 1 through a lightweight slope-forming layer 3 towards the drainage ditch. A cold primer or other type of interface agent is sprayed on the slope-forming layer 3 to treat the surface of the slope-forming layer and then a vapor barrier membrane is laid. This enhances the adhesion between the vapor barrier membrane and the base layer, reduces the blistering and peeling of the vapor barrier membrane, and improves the integrity and stability of the waterproof layer 8.

[0034] After the cold primer dries, when the moisture content of the base layer surface is ≤9%, an aluminum foil self-adhesive modified bitumen waterproof layer is laid on top to form a waterproof layer 8, preventing indoor water vapor from penetrating through the roof panel 1 to the insulation layer 4 and affecting the heat insulation effect of the insulation layer 4.

[0035] Insulation layer 4 continues to be laid on the main surface of the roof. High-efficiency and compressive-resistant insulation materials such as extruded polystyrene board (XPS) or high-density graphite polystyrene board (GEPS) can be used. The density of extruded polystyrene board (XPS) or high-density graphite polystyrene board (GEPS) can be determined according to the actual project requirements. In this embodiment, the insulation thickness of the main surface of the roof can be 250mm. It is laid in two layers with staggered joints to avoid continuous joints. The joints between the boards are filled with polyurethane foam.

[0036] First, double-layer vacuum insulation panels 2 are laid at the drainage ditch. The length of the double-layer vacuum insulation panels 2 extends to the starting point of the drainage ditch slope. The insulation thickness thins at the drainage ditch location, resulting in reduced insulation performance. Using double-layer vacuum insulation panels 2, which have a lower thermal conductivity, can offset the thermal defects caused by the thinner insulation thickness. The double-layer vacuum insulation panels 2 are laid with staggered joints to avoid localized thermal bridging caused by large gaps between the panels. Furthermore, double-layer vacuum insulation panels 2 are easily damaged during construction; once damaged, their insulation performance will be significantly reduced. Using double-layer vacuum insulation panels 2 can minimize the impact of a single-layer vacuum insulation panel failure causing the entire insulation system to fail. The two sides of the double-layer vacuum insulation panels 2 are sealed tightly to the main insulation board using sealant 21. The double-layer vacuum insulation panel 2 can be selected with different thicknesses and different thermal conductivity according to actual needs. In this embodiment, the thickness of the single-layer vacuum insulation panel can be 20mm, and the thermal conductivity can be 0.005-0.008W / (m·K).

[0037] A large-area roof insulation layer 4 of the same type is installed above the double-layer vacuum insulation panel 2. The slope angle on both sides of the drainage ditch can be set according to the required drainage ditch width. The bottom of the drainage ditch is wrapped with the double-layer vacuum insulation panel 2 by the large-area roof insulation layer 4, which can protect the vacuum insulation panel and further enhance the thermal insulation performance of the bottom of the drainage ditch, reducing the thermal bridging effect. The thickness of the double-layer vacuum insulation panel 2 can be selected according to actual needs. In this embodiment, the thickness of the insulation panel can be 60mm.

[0038] A waterproof additional layer 10 is first laid on top of the insulation layer 4 at the location of the drainage ditch, extending to the top of the insulation layer 4 on both sides and overlapping with the insulation layer 4 to strengthen the waterproofing at the bottom of the drainage ditch.

[0039] The double-layer waterproof layer 5 includes a first layer of fiberglass-reinforced modified bitumen self-adhesive waterproof membrane 51, and then a fiberglass-reinforced modified bitumen hot-melt waterproof membrane 52, so that the roof insulation and waterproof system can be implemented from the waterproof layer 8 below the insulation layer 4 to the double-layer waterproof layer 5 above the insulation layer 4, thereby ensuring the effective thermal insulation performance of the entire roof insulation and waterproof system.

[0040] An isolation layer 6 and a protective layer 7 are sequentially installed above the double waterproof layer 5, using conventional construction techniques, which will not be described in detail here.

[0041] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An ultra-low energy consumption roof drainage ditch structure, comprising, from bottom to top, a roof panel (1), a slope-finding layer (3), a waterproof layer (8), a thermal insulation layer (4), a double-layer waterproof layer (5), an isolation layer (6), and a protective layer (7); characterized in that, The waterproof layer (8) has a vapor barrier function, and a double-layer vacuum insulation board (2) is provided between the waterproof layer (4) and the insulation layer (4) at the position between the starting points of the slope on both sides of the corresponding drainage ditch. The insulation layer (4) is an insulation layer made of extruded polystyrene board XPS or high density graphite polystyrene board GEPS. An additional waterproof layer (10) is provided between the insulation layer (4) and the double waterproof layer (5) at the position between the starting points of the slope on both sides of the corresponding drainage ditch; The double-layer waterproof layer (5) includes a fiberglass-reinforced modified bitumen self-adhesive waterproof membrane (51) located below and a fiberglass-reinforced modified bitumen hot-melt waterproof membrane (52) located above.

2. The ultra-low energy consumption roof drainage ditch structure according to claim 1, characterized in that, The roof panel (1) is made of reinforced concrete.

3. The ultra-low energy consumption roof drainage ditch structure according to claim 1, characterized in that, The double-layer vacuum insulation board (2) is provided with sealant (21) on the bottom and top near the two sides. The sealant (21) seals the double-layer vacuum insulation board (2) and the waterproof layer (8) and the double-layer vacuum insulation board (2) and the insulation layer (4) tightly.

4. The ultra-low energy roof drainage ditch structure according to claim 1, characterized in that, The double-layer waterproof layer (5) and the waterproof layer (8) are constructed using dry construction methods.

5. The ultra-low energy consumption roof drainage ditch structure according to claim 1, characterized in that, The waterproof layer (8) is a vapor barrier membrane laid on a cold-coated base oil coating.

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