A passive parapet wall and its construction method

Abstract

This invention belongs to the field of building construction technology and discloses a passive parapet wall and its construction method. A vapor barrier layer is laid on the roof surface and extends up to a first preset height along the inner facade of the parapet wall. A roof insulation layer is stacked on top of the vapor barrier layer, and an inner insulation layer is attached to the inner facade of the parapet wall. The lower end of the inner insulation layer is pressed against the roof insulation layer, and the upper end is flush with the parapet wall; the inner insulation layer has a clamping gap. An outer waterproof layer is laid on top of the roof insulation layer and extends up along the inner insulation layer, with its end clamped within the clamping gap. Multiple mounting frames are spaced apart at the top of the parapet wall along its extension direction, with both ends of the mounting frames located on the inner and outer sides of the parapet wall. A top insulation layer is laid on the top of the parapet wall and pressed against the mounting frames. A waterproof capping is fastened to the top of the parapet wall and connected to the mounting frames. This passive parapet wall can avoid thermal bridging and prevent an increase in the building's overall energy consumption.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a passive parapet wall and its construction method. Background Technology

[0002] With the continuous development of technology, energy conservation and emission reduction have become an inevitable trend. Passive buildings, due to their ability to effectively reduce carbon emissions, are widely used in various types of buildings such as offices, schools, and hospitals. Among them, the parapet wall, as a key thermal component of the roof structure of passive buildings, directly determines the achievement of the overall low energy consumption goal of the building through its comprehensive performance in terms of thermal insulation and waterproofing.

[0003] In existing technologies, when constructing a parapet wall in a passive building, a first waterproof layer is typically laid on the roof leveling layer and extended to the top surface of the parapet wall's concrete structure. Next, the roof insulation layer is constructed, followed by a second waterproof layer, which extends only to the corners. Then, the inner facade insulation layer, top insulation layer, and outer facade insulation layer are constructed. Finally, a third waterproof layer is laid on the second waterproof layer and extended to the outer facade of the parapet wall, covering the roof insulation layer, inner facade insulation layer, top insulation layer, and part of the outer facade insulation layer. The top is then bolted to the top of the parapet wall, with the bolts penetrating the third waterproof layer, top insulation layer, and first waterproof layer, and screwed into the concrete structure of the parapet wall.

[0004] If the above construction method is used for waterproofing and insulation of the parapet wall in a passive building, that is, the bolts of the top cover are anchored into the concrete structure after penetrating the waterproof layer and the insulation layer, it is easy to generate a thermal bridge effect, thereby increasing the overall energy consumption of the building and failing to meet the energy consumption standards. It will also reduce the insulation performance of the insulation layer. On the other hand, the waterproof layer is penetrated, which affects the continuity of the waterproof layer, reduces its waterproofness and sealing, and makes the parapet wall prone to water seepage. Summary of the Invention

[0005] The purpose of this invention is to provide a passive parapet wall and its construction method, which can avoid the thermal bridging effect, prevent the increase of the overall energy consumption of the building, and ensure the waterproof and heat insulation properties of the parapet wall, thus avoiding water seepage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Firstly, a passive parapet wall is provided, comprising: Parapet wall; A vapor barrier layer is laid on the roof surface, and the vapor barrier layer is turned up to a first preset height along the inner side of the parapet wall; A roof insulation layer assembly is laid on the roof surface, and the roof insulation layer assembly is stacked on the vapor barrier layer; The inner insulation layer assembly is attached to the inner facade of the parapet wall. The inner insulation layer assembly extends vertically, with its lower end pressed against the roof insulation layer assembly and its upper end flush with the top surface of the parapet wall, so that the inner insulation layer assembly and the parapet wall clamp the vapor barrier layer. The inner insulation layer assembly has a clamping gap at the first preset height. An external waterproof layer assembly is laid on the roof insulation layer assembly, and the external waterproof layer assembly is turned up along the inner insulation layer assembly so that the end of the external waterproof layer assembly is clamped in the clamping gap; Multiple mounting frames are provided, and the multiple mounting frames are spaced apart at the top of the parapet wall along the extension direction of the parapet wall and are detachably connected to the parapet wall. The two ends of the mounting frames are respectively located on the inner and outer sides of the parapet wall along the thickness direction. The outer end of the mounting frame is at a predetermined distance from the outer decorative surface of the parapet wall. A top insulation layer is laid on top of the parapet wall, and the top insulation layer is pressed onto the mounting frame. A waterproof capping is fastened to the top of the parapet wall. The two sides of the waterproof capping are detachably connected to the two ends of the mounting frame, so that the waterproof capping covers the top insulation layer.

[0007] Optionally, the inner insulation layer assembly includes: The first insulation component is disposed on the inner side of the parapet wall and extends vertically. The lower end of the first insulation component is pressed onto the roof insulation layer assembly, and the upper end is flush with the top surface of the parapet wall. The second insulation component is disposed on the side of the first insulation component away from the parapet wall and extends vertically. The lower end of the second insulation component is pressed onto the roof insulation layer assembly, and the upper end is flush with the upper end of the vapor barrier layer. The outer waterproof layer assembly is attached to the side wall and top of the second insulation component and is turned up along the side wall of the first insulation component to a second preset height. The lower end of the third insulation component is pressed against the top of the second insulation component and attached to the side wall of the first insulation component, so that the third insulation component and the second insulation component, and the third insulation component and the first insulation component, all clamp the outer waterproof layer assembly. The third insulation component, the second insulation component and the first insulation component form the clamping gap. The upper end of the third insulation component is flush with the top surface of the parapet wall.

[0008] Optionally, the outer waterproof layer assembly includes a first waterproof layer and a second waterproof layer. The first waterproof layer is laid on the roof surface, and the second waterproof layer is stacked on the first waterproof layer. The second waterproof layer is flipped up along the inner insulation layer assembly to the second preset height so that the end of the second waterproof layer is clamped in the clamping gap. The stacking length of the first waterproof layer and the second waterproof layer is a preset length.

[0009] Optionally, the outer waterproof layer assembly further includes a third waterproof layer disposed at the inside corner of the parapet wall. The third waterproof layer includes a first waterproof section and a second waterproof section. The first waterproof section is attached to the roof insulation layer assembly, and the second waterproof section is attached to the inner insulation layer assembly. The lengths of the first waterproof section and the second waterproof section are both the preset lengths.

[0010] Optionally, the roof insulation layer assembly includes a first insulation layer and a second insulation layer. The first insulation layer is laid on the roof surface, and the second insulation layer is stacked on the first insulation layer. Both the first insulation layer and the second insulation layer include multiple fourth insulation components that are spliced ​​together in sequence. The splicing seams of the first insulation layer and the splicing seams of the second insulation layer are staggered.

[0011] Optionally, the passive parapet wall further includes an inner waterproof layer, which is laid on the roof insulation layer assembly and turned up to a third preset height along the inner side of the parapet wall. The inner waterproof layer is also attached to the vapor barrier layer so that the inner insulation layer assembly and the parapet wall sandwich the inner waterproof layer. And / or, The passive parapet wall also includes a leveling layer, which is set on the roof surface, and the vapor barrier layer is attached to the leveling layer.

[0012] Optionally, the mounting frame includes a support member and two connectors. The support member is located at the top of the parapet wall and extends along the thickness direction of the parapet wall. The two ends of the support member are respectively located on the inner and outer sides of the parapet wall. The two connectors are connected to the support member and are respectively located at the two ends of the support member. The connectors extend vertically and are spaced at the predetermined distance from the outer decorative surface of the parapet wall. The waterproof capping is detachably connected to the connectors. The passive parapet wall also includes a plug-in member that passes through the support member and is threaded into the parapet wall. The top insulation layer is pressed onto the support member and the plug-in member.

[0013] Optionally, the passive parapet wall further includes a heat insulation pad, which is sleeved on the connector and sandwiched between the support and the parapet wall.

[0014] Optionally, the passive parapet wall further includes an outer insulation layer assembly, which is laid on the outer facade of the parapet wall.

[0015] Secondly, a construction method for a passive parapet wall is provided, applicable to the passive parapet wall described above. The construction method for the passive parapet wall includes the following steps: S1. Lay a vapor barrier on the roof surface and along the inner side of the parapet wall until the vapor barrier is turned up to the first preset height. S2. A roof insulation layer assembly is laid on the roof surface, the roof insulation layer assembly is pressed on the vapor barrier layer, and its end is pressed against the vapor barrier layer located on the inner side of the parapet wall. S3. An inner insulation layer assembly is attached to the inner side of the parapet wall so that the inner insulation layer assembly and the parapet wall clamp the vapor barrier layer. The lower end of the inner insulation layer assembly is pressed onto the roof insulation layer assembly, and the upper end is flush with the top surface of the parapet wall. The inner insulation layer assembly is provided with a clamping gap at the first preset height. An outer waterproof layer assembly is attached to the roof insulation layer assembly, and the outer waterproof layer assembly is turned up along the inner insulation layer assembly so that the end of the outer waterproof layer assembly is clamped in the clamping gap. S4. Install multiple mounting frames on the top of the parapet wall. The multiple mounting frames are spaced apart along the extension direction of the parapet wall. The two ends of the mounting frames are located on the inner and outer sides of the parapet wall along its thickness direction. The outer end of the mounting frame is at a predetermined distance from the outer decorative surface of the parapet wall. S5. Lay a top insulation layer on the top of the parapet wall, and press the top insulation layer onto the mounting frame so that the top insulation layer covers the mounting frame; S6. Attach the waterproof capping to the top of the parapet wall and connect both ends of the waterproof capping to both ends of the mounting frame, so that the waterproof capping covers the top insulation layer.

[0016] The beneficial effects of this invention are: This invention provides a passive parapet wall and its construction method. The passive parapet wall includes a parapet wall, a vapor barrier, a roof insulation layer, an inner insulation layer assembly, an outer waterproof layer assembly, a mounting frame, a top insulation layer, and a waterproof capping. The vapor barrier, outer waterproof layer assembly, and waterproof capping together constitute the waterproof structure of the passive parapet wall, while the roof insulation layer assembly, inner insulation layer assembly, and top insulation layer together constitute the insulation structure. The vapor barrier is laid on the roof surface and extends up the inner side of the parapet wall to a first preset height, effectively preventing moisture from entering the insulation structure and avoiding condensation and dampness, thus preventing a decrease in the insulation performance. The mounting frame is located at the top of the parapet wall, with its two ends positioned on the inner and outer sides. The top insulation layer is stacked on the mounting frame, and the waterproof capping is connected to both ends of the mounting frame, thus preventing penetration of the insulation structure during the installation of the waterproof capping. This design ensures the insulation of the parapet wall while allowing the top insulation layer to wrap around the installation frame, preventing thermal bridging and reducing overall building energy consumption. The waterproof capping, fastened to the top of the parapet wall, provides waterproofing. The outer waterproof layer extends upwards along the inner insulation layer, with its ends clamped within the clamping gap. This means the outer waterproof layer terminates within the inner insulation layer of the parapet wall's inner facade. Therefore, the waterproof capping does not need to penetrate the outer waterproof layer, ensuring the parapet wall's waterproofness and preventing water seepage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the passive parapet wall provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the passive parapet wall with external waterproofing layer provided in the embodiment of the present invention; Figure 3 This is a first view of the top of the passive parapet wall provided in an embodiment of the present invention; Figure 4 This is a second view of the top of the passive parapet wall provided in an embodiment of the present invention.

[0018] In the picture: 100. Roof surface; 1. Parapet wall; 2. Vapor barrier layer; 3. Roof insulation layer assembly; 31. First insulation layer; 311. Fourth insulation component; 32. Second insulation layer; 4. Inner insulation layer assembly; 41. First insulation component; 42. Second insulation component; 43. Third insulation component; 5. External waterproofing layer group; 51. First waterproofing layer; 52. Second waterproofing layer; 53. Third waterproofing layer; 6. Mounting frame; 61. Support components; 62. Connecting components; 63. Plug-in connectors; 64. Insulation pads; 7. Top insulation layer; 8. Waterproof capping; 9. Inner waterproof layer; 10. Leveling layer; 11. Outer insulation layer group. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] Example 1 This embodiment provides a passive parapet wall, such as Figures 1 to 4As shown, this passive parapet wall can avoid the thermal bridging effect, prevent the increase in the overall energy consumption of the building, and ensure the waterproof and thermal insulation properties of the parapet wall 1, avoiding water seepage.

[0024] like Figures 1 to 4 As shown, the passive parapet wall includes a parapet wall 1, a vapor barrier layer 2, a roof insulation layer 3, an inner insulation layer assembly 4, an outer waterproof layer assembly 5, a mounting frame 6, a top insulation layer 7, and a waterproof capping 8. The vapor barrier layer 2 is laid on the roof surface 100 and extends vertically up the inner facade of the parapet wall 1 to a first preset height. The roof insulation layer assembly 3 is laid on the roof surface 100 and stacked on top of the vapor barrier layer 2. The inner insulation layer assembly 4 is attached to the inner facade of the parapet wall 1 and extends vertically. The lower end of the inner insulation layer assembly 4 presses against the roof insulation layer assembly 3, and the upper end is flush with the top surface of the parapet wall 1, so that the inner insulation layer assembly 4 and the parapet wall 1 clamp the vapor barrier layer 2. A clamping gap is provided at the first preset height of the inner insulation layer assembly 4, indicating that the clamping gap is located on the inner facade of the parapet wall 1. The outer waterproof layer 5 is laid on top of the roof insulation layer 3 and folds up along the inner insulation layer 4 so that the end of the outer waterproof layer 5 is clamped in the clamping gap. Multiple mounting frames 6 are provided, spaced apart at the top of the parapet wall 1 along its extension direction, and detachably connected to the parapet wall 1. The two ends of the mounting frames 6 are located on the inner and outer sides of the parapet wall 1 along its thickness direction, with a predetermined distance between the outer end of the mounting frame 6 and the outer decorative surface of the parapet wall 1. Therefore, both ends of the mounting frames 6 extend beyond the parapet wall 1. The top insulation layer 7 is laid on the top of the parapet wall 1 and pressed onto the mounting frames 6. A waterproof capping 8 is fastened to the top of the parapet wall 1, with both sides of the waterproof capping 8 detachably connected to the two ends of the mounting frames 6, so that the waterproof capping 8 covers the top insulation layer 7.

[0025] The passive parapet wall's waterproof structure is formed by the vapor barrier layer 2, the outer waterproof layer group 5, and the waterproof capping 8. Simultaneously, the roof insulation layer group 3, the inner insulation layer group 4, and the top insulation layer 7 together form the passive parapet wall's insulation structure. The vapor barrier layer 2 is laid on the roof surface 100 and extends up to the first preset height along the inner facade of the parapet wall 1, effectively preventing moisture from entering the insulation structure and avoiding condensation and dampness, thus preventing a decrease in the insulation performance. The mounting frame 6 is set at the top of the parapet wall 1, with its two ends located on the inner and outer sides of the parapet wall 1. The top insulation layer 7 is stacked on the mounting frame 6, and the waterproof capping 8 is connected to both ends of the mounting frame 6. This allows the waterproof capping 8 to be installed without penetrating the insulation structure. The parapet wall 1 is insulated, and the top insulation layer 7 can wrap around the mounting frame 6 to prevent thermal bridging and increase the overall energy consumption of the building. At the same time, the waterproof capping 8 is attached to the top of the parapet wall 1 to provide waterproofing. The outer waterproof layer 5 is turned up along the inner insulation layer 4, and its end is clamped in the clamping gap. That is, the outer waterproof layer 5 ends in the inner insulation layer 4 on the inner side of the parapet wall 1. Therefore, the installation of the waterproof capping 8 does not need to penetrate the outer waterproof layer 5, which can ensure the waterproofness of the parapet wall 1 and avoid water seepage.

[0026] It should be noted that the ratio of the first preset height to the height of the parapet wall 1 is 2 / 3, and the preset spacing is greater than or equal to 60mm.

[0027] In this embodiment, the preset spacing is 60mm. The vapor barrier 2 includes a 1.2mm thick alkali-resistant aluminum foil surface layer, fiberglass-reinforced self-adhesive modified bitumen waterproof membrane. The vapor barrier 2 is pasted and fixed to the inner facade of the roof surface 100 and the parapet wall 1.

[0028] In other embodiments, the preset spacing and the thickness of the vapor barrier layer 2 can be set to other values ​​according to actual needs, or other waterproof materials can be selected as the vapor barrier layer 2, which is not limited here.

[0029] Optionally, such as Figure 1 and Figure 2As shown, the inner insulation layer assembly 4 includes a first insulation component 41, a second insulation component 42, and a third insulation component 43. The first insulation component 41 is disposed on the inner facade of the parapet wall 1 and extends vertically. The lower end of the first insulation component 41 is pressed onto the roof insulation layer assembly 3, and the upper end is flush with the top surface of the parapet wall 1. The second insulation component 42 is disposed on the side of the first insulation component 41 away from the parapet wall 1 and extends vertically. The lower end of the second insulation component 42 is pressed onto the roof insulation layer assembly 3, and the upper end is flush with the upper end of the vapor barrier layer 2. The outer waterproof layer assembly 5 is attached to the side wall and top of the second insulation component 42 and extends upward along the first insulation component 41 to a second preset height. The lower end of the third insulation component 43 is pressed against the top of the second insulation component 42 and attached to the side wall of the first insulation component 41, so that the third insulation component 43 and the second insulation component 42, the third insulation component 43 and the first insulation component 41 all clamp the outer waterproof layer assembly 5. The third insulation component 43, the second insulation component 42 and the first insulation component 41 form a clamping gap, and the upper end of the third insulation component 43 is flush with the top surface of the parapet wall 1.

[0030] When laying the inner insulation layer group 4 and the outer waterproof layer group 5, firstly, the first insulation component 41 and the second insulation component 42 are sequentially installed on the inner facade of the parapet wall 1, so that the first insulation component 41 is attached to the inner facade of the parapet wall 1, and the second insulation component 42 is attached to the side of the first insulation component 41 away from the parapet wall 1. Then, the outer waterproof layer group 5 is laid on the roof insulation layer group 3, and the outer waterproof layer group 5 is flipped up along the second insulation component 42 and the first insulation component 41, that is, the outer waterproof layer group 5 is attached to the side wall and top of the second insulation component 42, as well as the side wall of the first insulation component 41, so that the end of the outer waterproof layer group 5 is flipped up to the second preset height. Then, the lower end of the third insulation component 43 is pressed onto the second insulation component 42. Its sidewall is attached to the first insulation component 41, so that the third insulation component 43 and the second insulation component 42 clamp the outer waterproof layer group 5 and attach it to the top section of the second insulation component 42. At the same time, the third insulation component 43 and the first insulation component 41 clamp the outer waterproof layer group 5 and attach it to the sidewall section of the first insulation component 41. Thus, the outer waterproof layer group 5 is clamped in the clamping gap formed by the third insulation component 43, the second insulation component 42 and the first insulation component 41, thereby realizing that the outer waterproof layer group 5 is terminated in the inner insulation layer group 4 of the inner facade of the parapet wall 1. The structure is simple and easy to operate. It can avoid the installation of the waterproof capping 8 penetrating the outer waterproof layer group 5, and can ensure the waterproofness of the parapet wall 1 and avoid water seepage.

[0031] For example, the first insulation component 41, the second insulation component 42, and the third insulation component 43 all comprise 100mm thick graphite polystyrene boards. The first insulation component 41 and the second insulation component 42 are fixed using thermally broken insulation nails, with a distribution density of at least 6 nails / m² on both the first and second insulation components 41. 2The third insulation component 43 is fixed to the second insulation component 42 by adhesive.

[0032] It should be noted that the outer waterproof layer 5 is attached to the side wall and top of the second insulation component 42 and is turned up along the side wall of the first insulation component 41. The upper end of the second insulation component 42 is flush with the upper end of the vapor barrier layer 2. Therefore, the second preset height is greater than the first preset height, so that it can fully cover the end of the vapor barrier layer 2 located inside, and achieve full waterproofing.

[0033] Optionally, the difference between the second preset height and the first preset height is greater than or equal to 50mm.

[0034] In this embodiment, the difference between the second preset height and the first preset height is 50mm. In other embodiments, the difference can be set to other values ​​as needed, and this is not limited here.

[0035] Optionally, such as Figure 1 and Figure 2 As shown, the outer waterproof layer assembly 5 includes a first waterproof layer 51 and a second waterproof layer 52. The first waterproof layer 51 is laid on the roof surface 100. The second waterproof layer 52 is stacked on the first waterproof layer 51, and the second waterproof layer 52 is turned up along the inner insulation layer assembly 4 to a second preset height, so that the end of the second waterproof layer 52 is clamped in the clamping gap. The stacking length of the first waterproof layer 51 and the second waterproof layer 52 is a preset length.

[0036] By setting the first waterproof layer 51, the roof surface 100 can be waterproofed, preventing water accumulation on the roof surface 100 from seeping into the roof insulation layer group 3, thus avoiding affecting the insulation effect of the insulation structure and ensuring the insulation performance of the insulation structure. The second waterproof layer 52 is stacked on the first waterproof layer 51 and flipped up along the inner insulation layer group 4 to the second preset height, and the end of the first waterproof layer 51 is sealed, achieving double waterproofing at the inside corner of the parapet wall 1 and forming a watertight path with multiple layers of protection, effectively preventing water seepage, ensuring the waterproof performance of the inside corner of the parapet wall 1, avoiding water seepage at the inside corner of the parapet wall 1, and at the same time ensuring the waterproof performance of the passive parapet wall waterproof structure.

[0037] It should be noted that the preset length is greater than or equal to 250mm.

[0038] In this embodiment, the preset length is 250mm. In other embodiments, the preset length can be set to other values ​​according to actual needs, and is not limited here.

[0039] Optionally, such as Figure 1 and Figure 2As shown, the outer waterproof layer assembly 5 also includes a third waterproof layer 53 installed at the inside corner of the parapet wall 1. The third waterproof layer 53 includes a first waterproof section and a second waterproof section. The first waterproof section is attached to the roof insulation layer assembly 3, and the second waterproof section is attached to the inner insulation layer assembly 4. The lengths of the first and second waterproof sections are both preset lengths. By installing the third waterproof layer 53, the waterproofness at the inside corner of the parapet wall 1 can be further enhanced, preventing water seepage. It can also eliminate stress concentration at the inside corner, preventing the first waterproof layer 51 and the second waterproof layer 52 at the inside corner from cracking.

[0040] For example, the first waterproof layer 51, the second waterproof layer 52 and the third waterproof layer 53 all include a 3mm thick SBS polymer modified bitumen waterproof membrane.

[0041] In other embodiments, other waterproof materials may be selected as the first waterproof layer 51, the second waterproof layer 52 and the third waterproof layer 53 as needed, and the thickness of the waterproof material may be set to other values, which are not limited here.

[0042] Optionally, such as Figure 1 and Figure 2 As shown, the roof insulation layer assembly 3 includes a first insulation layer 31 and a second insulation layer 32. The first insulation layer 31 is laid on the roof surface 100, and the second insulation layer 32 is stacked on the first insulation layer 31. Both the first insulation layer 31 and the second insulation layer 32 include multiple sequentially spliced ​​fourth insulation components 311, and the joints of the first insulation layer 31 and the second insulation layer 32 are staggered. By staggering the joints of the first insulation layer 31 and the second insulation layer 32, through-holes in the roof insulation layer assembly 3 can be avoided, blocking convective heat loss. Furthermore, the local thermal bridging effect at the joints can be significantly weakened, improving the overall uniformity of the thermal performance of the insulation structure. Simultaneously, it can improve the overall airtightness of the roof surface 100, reduce heat loss and moisture migration risks, and enhance the structural stability of the roof insulation layer assembly 3.

[0043] For example, the fourth insulation element 311 includes a 100mm thick graphite polystyrene board.

[0044] Optionally, such as Figure 1 and Figure 2 As shown, the passive parapet wall also includes an inner waterproof layer 9. The inner waterproof layer 9 is laid on the roof insulation layer assembly 3 and extends along the inner facade of the parapet wall 1 to a third preset height. The inner waterproof layer 9 is attached to the vapor barrier layer 2 so that the inner insulation layer assembly 4 and the parapet wall 1 sandwich the inner waterproof layer 9. By setting the inner waterproof layer 9, the waterproof performance of the passive parapet wall can be further enhanced, effectively preventing water accumulation on the roof from seeping into the roof insulation layer assembly 3 and avoiding damage to the insulation effect of the roof insulation layer assembly 3.

[0045] For example, the inner waterproof layer 9 includes a 3mm thick SBS polymer-modified bitumen waterproof membrane.

[0046] Optionally, such as Figure 1 and Figure 2 As shown, the passive parapet wall also includes a leveling layer 10. The leveling layer 10 is set on the roof surface 100, and the vapor barrier layer 2 is attached to the leveling layer 10. By setting the leveling layer 10, a flat substrate can be provided for the roof insulation layer group 3 and the external waterproof layer group 5, and it is beneficial to eliminate stress concentration at the inside corner of the parapet wall 1.

[0047] Optionally, such as Figures 1 to 4 As shown, the mounting frame 6 includes a support member 61 and two connectors 62. The support member 61 is located at the top of the parapet wall 1 and extends along the thickness direction of the parapet wall 1. The two ends of the support member 61 are located on the inner and outer sides of the parapet wall 1, respectively. The two connectors 62 are connected to the support member 61 and are located at both ends of the support member 61. The connectors 62 extend vertically, and there is a preset distance between the connectors 62 and the outer decorative surface of the parapet wall 1. The waterproof capping 8 is detachably connected to the connectors 62. The passive parapet wall also includes a plug-in member 63, which passes through the support member 61 and is threaded into the parapet wall 1. The top insulation layer 7 is stacked on the support member 61 and the plug-in member 63. By setting up the support member 61 and two connectors 62, an installation base can be provided for the waterproof capping 8. The two connectors 62 are located on the inner and outer sides of the parapet wall 1, so that the plug 63 for installing the waterproof capping 8 does not need to penetrate the top insulation layer 7, thus avoiding damage to the integrity of the top insulation layer 7 and ensuring the insulation effect of the insulation structure.

[0048] For example, connector 63 includes an inverted cone-shaped chemical anchor.

[0049] In this embodiment, the passive parapet wall also includes fixing bolts and fastening nuts. When installing the waterproof capping 8, the waterproof capping 8 is fastened to the top of the parapet wall 1, so that the side wall of the waterproof capping 8 fits against the connector 62. Then, the fixing bolts pass through the side wall of the waterproof capping 8 and the connector 62, and are threadedly connected to the fastening nuts.

[0050] Optionally, such as Figures 1 to 4 As shown, the passive parapet wall also includes an insulation pad 64. The insulation pad 64 is fitted onto the connector 63 and sandwiched between the support member 61 and the parapet wall 1. By setting the insulation pad 64, thermal bridging can be prevented at the connector 63, ensuring the insulation effect of the insulation structure and avoiding an increase in the overall energy consumption of the building.

[0051] For example, the thermal insulation pad 64 includes a 10 mm thick high-strength polyurethane thermal insulation pad 64.

[0052] Optionally, the passive parapet wall also includes an outer insulation layer group 11, which is laid on the outer facade of the parapet wall 1 for insulation of the outer side of the parapet wall 1.

[0053] In this embodiment, the outer insulation layer group 11 includes a prefabricated steel wire mesh perlite composite insulation board. The prefabricated steel wire mesh perlite composite insulation board is connected and fixed to the outer facade of the parapet wall 1 using thermal break insulation nails, and the distribution density of the thermal break insulation nails is greater than or equal to 6 nails / m². 2 .

[0054] Example 2 This embodiment provides a construction method for a passive parapet wall, applicable to the passive parapet wall in Embodiment 1. The construction method for a passive parapet wall includes the following steps: S1. Lay a vapor barrier layer 2 on the roof surface 100 and along the inner side of the parapet wall 1 until the vapor barrier layer 2 extends to the first preset height. S2. A roof insulation layer group 3 is laid on the roof surface 100. The roof insulation layer group 3 is pressed on the vapor barrier layer 2, and its end is pressed against the vapor barrier layer 2 located on the inner side of the parapet wall 1. S3. An inner insulation layer group 4 is attached to the inner side of the parapet wall 1 so that the inner insulation layer group 4 and the parapet wall 1 clamp the vapor barrier layer 2. An outer waterproof layer group 5 is attached to the inner insulation layer group 4 and extends along the inner insulation layer group 4. The lower end of the inner insulation layer group 4 is pressed on the roof insulation layer group 3, and the upper end is flush with the top surface of the parapet wall 1. The inner insulation layer group 4 is provided with a clamping gap at the first preset height, and the outer waterproof layer group 5 is clamped in the clamping gap. S4. Install multiple mounting frames 6 on the top of the parapet wall 1. The multiple mounting frames 6 are spaced apart along the extension direction of the parapet wall 1. The two ends of the mounting frames 6 are located on the inner and outer sides of the parapet wall 1 along the thickness direction. The outer end of the mounting frame 6 is spaced apart from the outer decorative surface of the parapet wall 1 by a preset distance. S5. Lay a top insulation layer 7 on the top of the parapet wall 1. The top insulation layer 7 is pressed onto the mounting frame 6 so that the top insulation layer 7 covers the mounting frame 6. S6. Attach the waterproof capping 8 to the top of the parapet wall 1, and connect the two ends of the waterproof capping 8 to the two ends of the mounting frame 6 respectively, so that the waterproof capping 8 covers the top insulation layer 7.

[0055] The passive parapet wall's waterproof structure is formed by the vapor barrier layer 2, the external waterproof layer group 5, and the waterproof capping 8. Simultaneously, the roof insulation layer group 3, the inner insulation layer group 4, and the top insulation layer 7 together constitute the passive parapet wall's insulation structure. The vapor barrier layer 2 is laid on the roof surface 100 and extends along the inner facade of the parapet wall 1, effectively preventing moisture from entering the insulation structure and avoiding condensation and dampness, thus preventing a decrease in the insulation performance. The mounting frame 6 is set at the top of the parapet wall 1, with its two ends located on the inner and outer sides of the parapet wall 1, for installing the waterproof capping 8. The top insulation layer 7 is stacked on the mounting frame 6, preventing the mounting frame 6 from being exposed and thus avoiding thermal bridging, preventing an increase in the overall building energy density. The top insulation layer 7 is connected to both ends of the mounting frame 6, which avoids penetrating the insulation structure and ensures the insulation performance of the parapet wall 1. At the same time, the waterproof capping 8 is fastened to the top of the parapet wall 1, which can provide waterproofing to the top of the parapet wall 1. The outer waterproof layer group 5 extends along the inner insulation layer group 4, and its end is clamped in the clamping gap. That is, the outer waterproof layer group 5 ends in the inner insulation layer group 4 on the inner side of the parapet wall 1. Therefore, the installation of the waterproof capping 8 does not need to penetrate the outer waterproof layer group 5, which can ensure the waterproof performance of the parapet wall 1 and avoid water seepage.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A passive parapet wall, characterized in that, include: Parapet wall (1); A vapor barrier layer (2) is laid on the roof surface (100), and the vapor barrier layer (2) is turned up to a first preset height along the inner side of the parapet wall (1); The roof insulation layer assembly (3) is laid on the roof surface (100), and the roof insulation layer assembly (3) is stacked on the vapor barrier layer (2); The inner insulation layer group (4) is attached to the inner side of the parapet wall (1). The inner insulation layer group (4) extends vertically. The lower end of the inner insulation layer group (4) is pressed onto the roof insulation layer group (3), and the upper end is flush with the top surface of the parapet wall (1) so that the inner insulation layer group (4) and the parapet wall (1) clamp the vapor barrier layer (2). The inner insulation layer group (4) has a clamping gap at the first preset height. An outer waterproof layer assembly (5) is laid on the roof insulation layer assembly (3), and the outer waterproof layer assembly (5) is turned up along the inner insulation layer assembly (4) so ​​that the end of the outer waterproof layer assembly (5) is clamped in the clamping gap. Multiple mounting frames (6) are provided. The multiple mounting frames (6) are spaced apart on the top of the parapet wall (1) along the extension direction of the parapet wall (1) and are detachably connected to the parapet wall (1). The two ends of the mounting frames (6) are respectively located on the inner and outer sides of the parapet wall (1) along the thickness direction. The outer end of the mounting frame (6) is spaced apart from the outer decorative surface of the parapet wall (1) by a preset distance. The top insulation layer (7) is laid on the top of the parapet wall (1) and the top insulation layer (7) is pressed onto the mounting frame (6); A waterproof capping (8) is fastened to the top of the parapet wall (1). The two sides of the waterproof capping (8) are detachably connected to the two ends of the mounting frame (6) so that the waterproof capping (8) covers the top insulation layer (7).

2. The passive parapet wall according to claim 1, characterized in that, The inner insulation layer assembly (4) includes: The first insulation component (41) is installed on the inner side of the parapet wall (1) and extends vertically. The lower end of the first insulation component (41) is pressed onto the roof insulation layer group (3), and the upper end is flush with the top surface of the parapet wall (1). The second insulation component (42) is disposed on the side of the first insulation component (41) away from the parapet wall (1) and extends vertically. The lower end of the second insulation component (42) is pressed onto the roof insulation layer assembly (3), and the upper end is flush with the upper end of the vapor barrier layer (2). The outer waterproof layer assembly (5) is attached to the side wall and top of the second insulation component (42) and flipped up along the side wall of the first insulation component (41) to the second preset height. The lower end of the third insulation component (43) is pressed against the top of the second insulation component (42) and attached to the side wall of the first insulation component (41) so that the third insulation component (43) and the second insulation component (42), and the third insulation component (43) and the first insulation component (41) all clamp the outer waterproof layer assembly (5). The third insulation component (43), the second insulation component (42) and the first insulation component (41) form the clamping gap. The upper end of the third insulation component (43) is flush with the top surface of the parapet wall (1).

3. The passive parapet wall according to claim 2, characterized in that, The outer waterproof layer group (5) includes a first waterproof layer (51) and a second waterproof layer (52). The first waterproof layer (51) is laid on the roof surface (100), and the second waterproof layer (52) is stacked on the first waterproof layer (51). The second waterproof layer (52) is flipped up along the inner insulation layer group (4) to the second preset height so that the end of the second waterproof layer (52) is clamped in the clamping gap. The stacking length of the first waterproof layer (51) and the second waterproof layer (52) is a preset length.

4. The passive parapet wall according to claim 3, characterized in that, The outer waterproof layer group (5) also includes a third waterproof layer (53) set at the inside corner of the parapet wall (1). The third waterproof layer (53) includes a first waterproof section and a second waterproof section. The first waterproof section is attached to the roof insulation layer group (3), and the second waterproof section is attached to the inner insulation layer group (4). The length of the first waterproof section and the length of the second waterproof section are both the preset length.

5. The passive parapet wall according to any one of claims 1-4, characterized in that, The roof insulation layer group (3) includes a first insulation layer (31) and a second insulation layer (32). The first insulation layer (31) is laid on the roof surface (100), and the second insulation layer (32) is stacked on the first insulation layer (31). Both the first insulation layer (31) and the second insulation layer (32) include multiple fourth insulation components (311) that are spliced ​​together in sequence. The splicing seams of the first insulation layer (31) and the splicing seams of the second insulation layer (32) are staggered.

6. The passive parapet wall according to any one of claims 1-4, characterized in that, The passive parapet wall also includes an inner waterproof layer (9), which is laid on the roof insulation layer group (3) and turned up to a third preset height along the inner side of the parapet wall (1). The inner waterproof layer (9) is attached to the vapor barrier layer (2) so that the inner insulation layer group (4) and the parapet wall (1) sandwich the inner waterproof layer (9). And / or, The passive parapet wall also includes a leveling layer (10), which is disposed on the roof surface (100), and the vapor barrier layer (2) is attached to the leveling layer (10).

7. The passive parapet wall according to any one of claims 1-4, characterized in that, The mounting frame (6) includes a support (61) and two connectors (62). The support (61) is located on the top of the parapet wall (1) and extends along the thickness direction of the parapet wall (1). The two ends of the support (61) are located on the inner and outer sides of the parapet wall (1). The two connectors (62) are connected to the support (61) and are located on the two ends of the support (61). The connectors (62) extend vertically. The connectors (62) and the outer decorative surface of the parapet wall (1) are at the preset distance. The waterproof capping (8) is detachably connected to the connectors (62). The passive parapet wall also includes a plug (63). The plug (63) passes through the support (61) and is screwed into the parapet wall (1). The top insulation layer (7) is pressed onto the support (61) and the plug (63).

8. The passive parapet wall according to claim 7, characterized in that, The passive parapet wall also includes a heat insulation pad (64), which is sleeved on the plug (63) and sandwiched between the support (61) and the parapet wall (1).

9. The passive parapet wall according to any one of claims 1-4, characterized in that, The passive parapet wall also includes an outer insulation layer group (11), which is laid on the outer facade of the parapet wall (1).

10. A construction method for a passive parapet wall, characterized in that, The passive parapet wall applicable to any one of claims 1-9, wherein the construction method of the passive parapet wall comprises the following steps: S1. Lay a vapor barrier layer (2) on the roof surface (100) and along the inner side of the parapet wall (1) until the vapor barrier layer (2) is turned up to the first preset height; S2. A roof insulation layer group (3) is laid on the roof surface (100). The roof insulation layer group (3) is pressed on the vapor barrier layer (2), and its end is pressed against the vapor barrier layer (2) located on the inner side of the parapet wall (1). S3. An inner insulation layer group (4) is attached to the inner side of the parapet wall (1) so that the inner insulation layer group (4) and the parapet wall (1) clamp the vapor barrier layer (2). The lower end of the inner insulation layer group (4) is pressed on the roof insulation layer group (3), and the upper end is flush with the top surface of the parapet wall (1). The inner insulation layer group (4) has a clamping gap at the first preset height. An outer waterproof layer group (5) is attached to the roof insulation layer group (3), and the outer waterproof layer group (5) is turned up along the inner insulation layer group (4) so ​​that the end of the outer waterproof layer group (5) is clamped in the clamping gap. S4. Install multiple mounting frames (6) on the top of the parapet wall (1). The multiple mounting frames (6) are spaced apart along the extension direction of the parapet wall (1). The two ends of the mounting frames (6) are located on the inner and outer sides of the parapet wall (1) along the thickness direction. The outer end of the mounting frame (6) is spaced apart from the outer decorative surface of the parapet wall (1) by a preset distance. S5. Lay a top insulation layer (7) on the top of the parapet wall (1), and press the top insulation layer (7) onto the mounting frame (6) so that the top insulation layer (7) covers the mounting frame (6). S6. The waterproof capping (8) is fastened to the top of the parapet wall (1), and the two ends of the waterproof capping (8) are connected to the two ends of the mounting frame (6) respectively, so that the waterproof capping (8) covers the top insulation layer (7).

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