A slope-finding heat-preservation integrated roof with embedded drainage ditch

Abstract

The utility model relates to a kind of finding slope heat preservation integrated inlay drainage ditch roof, including roof panel, first waterproof layer, insulating board, second waterproof layer, rigid protective layer are sequentially equipped on roof panel, the top surface of insulating board laid on the top surface of roof panel forms gradient, and drainage groove is preset on the top surface of insulating board, the rigid protective layer above drainage groove reserves drainage ditch inlay entrance, and inlay drainage ditch is installed in drainage groove.The utility model utilizes the characteristics that insulating board material is easy to cut and process integrity, combines finding slope and heat preservation together, simultaneously makes the traditional finding slope layer located in lower layer become in the upper portion of insulating board, embeds inlay drainage ditch in the thickness of insulating board, does not affect insulating board performance, does not form heat bridge, can significantly improve the heat insulation performance of roof panel, to reduce roof thickness and load purpose.

Description

[Technical Field]

[0001] This utility model relates to an integrated roof with slope-finding and thermal insulation and embedded drainage ditch, belonging to the field of building energy-saving design technology. [Background Technology]

[0002] Under the "dual-carbon" strategy, building energy efficiency standards are constantly being raised, placing higher demands on the thermal insulation performance of building envelopes. As a key component of building energy efficiency design, the thickness of insulation boards in roofs is continuously increasing. However, traditional roof construction methods have revealed numerous problems in addressing this trend.

[0003] Currently, the traditional construction method for common flat concrete roofs typically involves, from bottom to top, the following layers: roof slab (such as reinforced concrete), slope-forming layer (such as lightweight aggregate concrete), insulation board (such as XPS board, polyurethane board, etc.), waterproof layer, and protective layer (such as reinforced concrete). This construction has the following significant drawbacks: Increased roof thickness and load: The thicker insulation board directly increases the total roof thickness and building height. This not only increases the structural load but also necessitates a corresponding increase in parapet wall height due to the increased building height, further requiring larger building spacing, directly impacting the project's floor area ratio and increasing development costs. Poor performance of the slope-forming layer: Although traditional lightweight aggregate concrete slope-forming layers are composed of loose materials and have some insulation effect, their thermal conductivity is much higher than that of specialized insulation materials such as XPS and polyurethane, resulting in low insulation efficiency. Simultaneously, the heavy weight of concrete further increases the roof load. Thermal bridging is a serious problem: Roof-embedded drainage ditches are typically constructed using reinforced concrete cast in-situ. Their structure needs to be recessed and protrude from the ceiling, inevitably disrupting the continuity of the insulation board and creating severe thermal bridges. Heat is rapidly transferred through these reinforced concrete components, significantly reducing the overall thermal insulation performance of the roof, leading to energy waste and the risk of condensation.

[0004] Against this backdrop, there is a need to seek a new roofing system that can enhance the thermal insulation performance of the roof while minimizing the increase in roof thickness and roof load. [Utility Model Content]

[0005] The purpose of this invention is to combine the slope-forming and insulation functions into one by utilizing the easy-to-cut and high-quality integrity of the insulation board. By cleverly embedding the internal drainage ditch within the thickness of the slope-forming layer, the continuity and integrity of the insulation board are ensured, fundamentally eliminating thermal bridges. Ultimately, this achieves an integrated slope-forming and insulation roof with an embedded drainage ditch, minimizing the total roof thickness and structural load while enhancing roof insulation performance.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a roof with integrated slope-finding and thermal insulation and embedded drainage ditch, including a roof panel, on which a first waterproof layer, an insulation board, a second waterproof layer and a rigid protective layer are sequentially provided. The top surface of the insulation board laid on the top surface of the roof panel forms a slope, and a drainage groove is preset on the top surface of the insulation board. The rigid protective layer above the drainage groove has a reserved drainage groove embedding opening, and an embedded drainage ditch is installed in the drainage groove.

[0007] The integrated slope-finding and insulation roof with embedded drainage ditch of this utility model is further configured as follows: the insulation board laid on the roof panel is made of multiple insulation unit boards spliced ​​together, the top surface of one insulation unit board forms a ridge line, the insulation unit board is sloped from the ridge line to both sides, the other insulation unit boards are laid along the parallel slope direction, and the length direction of the drainage ditch is parallel to the length direction of the ridge line.

[0008] The integrated slope-finding and insulation roof with embedded drainage ditch of this utility model is further configured as follows: the first waterproof layer is laid with waterproof membrane or coated with waterproof paint; the second waterproof layer is laid with waterproof membrane, which is laid parallel to the drainage direction.

[0009] The slope-finding and heat-insulating integrated roof with embedded drainage ditch of this utility model is further configured as follows: the embedded drainage ditch is a stainless steel drainage ditch, one end of which is connected to a drain pipe, which extends into and is fixed in the rainwater hopper.

[0010] The slope-finding and insulation integrated roof with embedded drainage ditch of this utility model is further configured such that the slope i of the insulation board is 2% to 5%.

[0011] The integrated slope-finding and insulation roof with embedded drainage ditch of this utility model is further configured such that the thickness of the insulation board at the bottom of the drainage ditch is not less than the minimum thickness of the insulation board.

[0012] The integrated slope-finding and insulation roof with embedded drainage ditch of this utility model is further configured as follows: the rigid protective layer is made of C20 fine stone concrete, and the C20 fine stone concrete is reinforced with steel mesh.

[0013] The slope-finding and heat-insulating integrated roof with embedded drainage ditch of this utility model is further configured as follows: an L-shaped stainless steel drainage ditch bracket is pre-embedded at the reserved drainage ditch embedding opening of the rigid protective layer, and the embedded drainage ditch is installed on the L-shaped stainless steel drainage ditch bracket.

[0014] The integrated slope-finding and insulation roof with embedded drainage ditch of this utility model is further configured as follows: a rubber water-blocking strip is provided between the embedded drainage ditch and the L-shaped stainless steel drainage ditch support.

[0015] The slope-finding and heat-insulating integrated roof with embedded drainage ditch of this utility model is also equipped with a drainage grate that can be detachably connected to the top of the embedded drainage ditch.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model's integrated slope-finding and insulation roof with embedded drainage ditch boasts a high degree of prefabrication and rapid construction: the insulation boards are prefabricated in the factory, requiring only on-site installation, unlike concrete slope-finding layers which require pouring and curing; the embedded drainage ditch is also a finished product, directly installed on-site. These two improvements greatly enhance the prefabrication level and construction efficiency of roofing projects, significantly shortening the construction period.

[0018] 2. This utility model's integrated slope-finding and insulation roof with embedded drainage ditch boasts superior thermal insulation performance and a thermal bridge-free design: This utility model creatively embeds the drainage ditch within the thickness of the insulation board, ensuring the insulation board remains continuous and its thickness undiminished at the drainage ditch, completely avoiding the structural thermal bridges caused by traditional concrete eaves gutters. This design significantly improves the overall thermal insulation performance of the roof, resulting in remarkable energy savings.

[0019] 3. This utility model's integrated slope-finding and insulation roof design with embedded drainage ditch offers flexibility and high space utilization: the embedded drainage ditch's location is not limited by structural beams and can be flexibly arranged according to roof drainage needs, resulting in lower costs. Because it does not protrude downwards, it has no impact on the building's interior ceiling space, making it particularly suitable for roof projects in industrial plants and commercial buildings requiring large spans and large spaces, and enabling multi-point drainage.

[0020] 4. This utility model's integrated slope-finding and insulation roof with embedded drainage ditch reduces structural load and offers significant economic benefits: The use of lightweight XPS or polyurethane insulation boards replaces the traditional, heavier lightweight aggregate concrete slope-finding layer, greatly reducing the permanent load on the roof, facilitating structural design optimization, and lowering the cost of the main structure. Simultaneously, the thinner roof structure helps control the overall building height, thereby increasing the project's floor area ratio while meeting regulatory requirements, resulting in substantial economic benefits. [Attached Image Description]

[0021] Figure 1 This is a top view of the integrated slope-finding and heat-insulating roof with embedded drainage ditch of this utility model.

[0022] Figure 2 yes Figure 1 The cross-sectional view at point B in the diagram.

[0023] Figure 3 yes Figure 1 The cross-sectional view at point C in the diagram.

[0024] Figure 4 yes Figure 1 The cross-sectional view at point D in the diagram.

[0025] Figure 5 yes Figure 1 The cross-sectional view at point E in the diagram.

[0026] Figure 6 yes Figure 3 Enlarged view of point A in the middle.

[0027] Reference numerals: Roof panel 1, Parapet wall 11, Vertical panel segment 12, Horizontal panel segment 13, Groove 14, First waterproof layer 21, Insulation board 3, Second waterproof layer 22, Rigid protective layer 4, Embedded opening 41, Stainless steel drainage ditch bracket 5, Drainage grate 6, Embedded drainage ditch 7, Drainage channel 71, Rubber water-blocking strip 8, Rainwater hopper 9, Stainless steel drain pipe 10, Minimum thickness of insulation board h, Insulation board thickness at embedded drainage ditch h1, Maximum thickness of insulation board H, Insulation board slope i, Roof slope length L.

Detailed Implementation Methods

[0028] This utility model relates to an integrated roof with slope-finding and thermal insulation and an embedded drainage ditch. A preferred embodiment includes a roof panel 1, a first waterproof layer 21, an insulation board 3, a second waterproof layer 22, a rigid protective layer 4, and an embedded drainage ditch 7. Figure 1 As shown, parapet walls 11 are provided on the top, bottom, and left side of the entire roof, as... Figure 2 As shown, a groove 14 for drainage is formed at the connection between the parapet wall 11 and the outer wall. Figure 1 The horizontal line that crosses the DD section indicator line is the ridge line, and the ridge line is the highest point of the roof. Below the ridge line, there is a recessed drainage ditch 7, and the grooves 14 between the parapet walls 11 on the three sides of the roof are interconnected. Figure 1 The right end of the embedded drainage ditch 7 is designated as the drainage outlet.

[0029] To improve thermal insulation and drainage, a sloped insulation board 3 is installed on the roof panel 1. The top surface of the insulation board 3 is sloped, while its bottom surface is flat. The insulation board laid on the top of the entire roof is not a single slope, but is designed with a ridge line as the watershed for slope finding.

[0030] To achieve efficient drainage, this invention innovatively incorporates an embedded drainage ditch 7 on the insulation board 3. The embedded drainage ditch 7 is not arbitrarily positioned, but rather parallel to the roof ridge line.

[0031] like Figure 2 As shown, on the roof panel 1, from bottom to top, there are a first waterproof layer 21, an insulation board 3, a second waterproof layer 22, a geotextile isolation layer, a rigid protective layer 4, and a decorative layer.

[0032] To improve waterproofing, the first waterproof layer 21 and the second waterproof layer 22 are laid from the top of the roof panel 1 all the way to the inner wall of the groove 14 and extend to the parapet wall 11. The first waterproof layer 21 is preferably a waterproof membrane or a waterproof coating, and the second waterproof layer 22 is preferably a waterproof membrane. The waterproof membrane of the second waterproof layer 22 is preferably laid parallel to the drainage direction. Within the groove 14 area, there should be no overlaps in the waterproof membrane perpendicular to the drainage direction to ensure smooth drainage and prevent leakage.

[0033] When laying insulation board 3, except for the insulation board 3 at the top of the roof panel 1 which has a slope, the insulation board 3 on the side with the parapet wall 11 needs to be laid along the outer wall surface all the way into the groove 14. However, the insulation board located on the outer wall surface and in the groove 14 does not need to have a slope. The insulation boards 3 spliced ​​on both sides of the ridge line are thicker at one end and thinner at the other. The minimum thickness h of the insulation board 3 on the roof panel 1 can be calculated and determined according to the specific energy-saving requirements. The maximum thickness of the insulation board 3 at the ridge line is H = h + i * L. Where L is the calculated length in the drainage direction. When laying, the long side of the slope-finding insulation board 3 should be parallel to the roof drainage slope direction. The slope i of the insulation board 3 is preferably 2% to 5%. When the slope i of the insulation board 3 exceeds 5%, anti-slip fixing measures need to be taken for the rigid protective layer 4. The insulation board 3 is produced in the factory. Before processing, it should be designed and numbered. The construction is simple and does not require curing.

[0034] To protect the waterproof layer and distribute the load, the rigid protective layer 4 is made of C20 fine aggregate concrete with a thickness of 40mm to 60mm, and reinforced with steel mesh inside the C20 fine aggregate concrete.

[0035] like Figure 3 and Figure 6 As shown, in order to provide a precise placement space for the embedded drainage ditch 7, the insulation board 3 is pre-cut in the factory to form a drainage channel 71 with an arc cross-section. An additional layer of waterproof membrane is added to the drainage channel 71. The waterproof membrane is attached to the outer surface of the drainage channel 71 and a geotextile isolation layer is laid on it. When the rigid protective layer 4 is poured on the construction site, an embedding opening 41 that is aligned with and connected to the position of the drainage channel 71 is formed on the rigid protective layer 4 by means of a template or special tool. The two vertically aligned openings together form a space for placing the embedded drainage ditch 7. An L-shaped stainless steel drainage ditch bracket 5 for supporting the embedded drainage ditch 7 is pre-embedded in the embedding opening 41 of the rigid protective layer 4.

[0036] To divert rainwater, an embedded drainage ditch 7 is installed on the L-shaped stainless steel drainage ditch bracket 5. A rubber water-blocking strip 8 is installed between the embedded drainage ditch 7 and the L-shaped stainless steel drainage ditch bracket 5 to prevent rainwater from entering. The embedded drainage ditch 7 is made of stainless steel, and its radius is not less than 150mm. The embedded drainage ditch 7 is embedded in the top of the insulation board 3, without disrupting the continuity of the insulation board on the entire roof, i.e., it does not form a thermal bridge. The thickness h1 of the insulation board 3 at the embedded drainage ditch 7 is ensured to be not less than the minimum thickness h of the insulation board 3. The embedded drainage ditch 7 can be flexibly installed in multiple locations, is low in cost, has no impact on the building's interior space, and can be installed in multiple places, making it particularly suitable for large-span roof projects. The top of the embedded drainage ditch 7 is equipped with a drainage grate 6 to prevent foreign objects from entering.

[0037] In this embodiment, the insulation board 3 is made of XPS board or polyurethane board. Before processing, the insulation board 3 should be designed, laid out, and numbered. The insulation board 3 is laid parallel to the slope direction, as shown below. Figure 4 As shown, the insulation board 3 at the ridge line should be a single, centered piece. The insulation board 3 should have a length and width of no less than 1200mm x 600mm.

[0038] like Figure 5 As shown, one end of the embedded drainage ditch 7 is connected to the stainless steel drain pipe 10. The stainless steel drain pipe 10 has a diameter of 100mm and a length of not less than 70mm. The stainless steel drain pipe 10 is connected to the rainwater hopper 9, which is installed on the roof. The first waterproof layer 21 and the second waterproof layer 22 extend to the inner wall of the rainwater hopper 9. The embedded drainage ditch 7 is a prefabricated product installed on site, which shortens the construction period.

[0039] Through the implementation of this embodiment, the roof system successfully combines the slope finding with the insulation board 3, and seamlessly embeds the embedded drainage ditch 7 into the insulation board 3, achieving comprehensive optimization of roof insulation performance, structural load and construction efficiency.

[0040] The above-described specific embodiments are merely preferred embodiments of this invention and are not intended to limit this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A type of roof with integrated slope-finding and thermal insulation and embedded drainage ditch, characterized in that: The roof panel includes a first waterproof layer, an insulation board, a second waterproof layer, and a rigid protective layer. The top surface of the insulation board laid on the top surface of the roof panel forms a slope, and a drainage groove is pre-set on the top surface of the insulation board. The rigid protective layer above the drainage groove has a reserved drainage ditch embedding opening, and an embedded drainage ditch is installed in the drainage groove.

2. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: The insulation board laid on the roof panel is made up of multiple insulation unit boards spliced ​​together. The top surface of one insulation unit board forms the ridge line. The insulation unit board is sloped from the ridge line to both sides. The other insulation unit boards are laid along the parallel slope direction. The length direction of the drainage groove is parallel to the length direction of the ridge line.

3. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 2, characterized in that: The first waterproof layer is achieved by laying waterproof membrane or applying waterproof coating; the second waterproof layer is achieved by laying waterproof membrane, which is laid parallel to the drainage direction.

4. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: The embedded drainage ditch is made of stainless steel, with a drain pipe connected to one end. The drain pipe extends into and is fixed in the rainwater hopper.

5. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: The slope of the insulation board is 2% to 5%.

6. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: The thickness of the insulation board at the bottom of the drainage channel shall not be less than the minimum thickness of the insulation board.

7. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: The rigid protective layer is made of C20 fine aggregate concrete, with a steel mesh inside.

8. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: An L-shaped stainless steel drainage ditch bracket is pre-embedded at the reserved drainage ditch inlet of the rigid protective layer, and the embedded drainage ditch is installed on the L-shaped stainless steel drainage ditch bracket.

9. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 8, characterized in that: A rubber water-blocking strip is installed between the embedded drainage ditch and the L-shaped stainless steel drainage ditch support.

10. The integrated slope-finding and thermal insulation roof with embedded drainage ditch as described in claim 1, characterized in that: The built-in drainage ditch has a detachable drain grate at the top.

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