Waterproof repairing structure of traditional Aga soil rammed earth roof
By installing TPO waterproof membrane and modified Aga soil surface layer on the rammed earth roof, combined with an isolation layer and parapet wall drainage system, the problem of water leakage in traditional Aga soil roofs has been solved, achieving efficient waterproofing and cultural heritage preservation.
Patent Information
- Application Number
- CN202520079251.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Traditional rammed earth roofs lack effective waterproofing design, leading to roof leaks, cracks in the wooden structure, and wall collapses, affecting daily life and the protection of cultural heritage.
TPO waterproof membrane is used as the waterproof layer, combined with modified argillaceous soil surface layer and isolation layer. Through hot air welding and mechanical fixing, a sealed waterproof structure is formed. The flexibility and flame retardant properties of TPO waterproof membrane are utilized, combined with parapet wall and drainage system to achieve effective waterproofing.
It improves the waterproof performance of the roof, reduces the load on the wooden structure, preserves the traditional cultural features, reduces construction risks and maintenance costs, and meets the safety requirements of wooden structures.
Smart Images

Figure CN223853911U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building repair technical field, specifically, relate to a traditional a gat rammed earth roof waterproof repair structure. BACKGROUND
[0002] In recent years, due to the precipitation of Tibet area increases year by year the traditional local residence rammed earth roof lacks effective waterproof design, this not only leads to the problem of serious roof waterlogging, roof soil loose, more makes the roof wood structure crack, rammed earth wall faces the threat of collapse and rainwater leakage destroys indoor color drawing. This series of problems not only influence local Tibetan compatriots daily production and life, more to the precious cultural heritage protection and inheritance of local area constitutes the challenge.
[0003] With the improvement of the living standard of residents, residents also pay more and more attention to the problem of roof. At present, in order to improve this problem, local residents adopt a variety of repair methods, such as: using a gat or loess repair, erecting color steel plate on rammed earth roof, using cement mortar repair, laying a layer of plastic film or waterproofing membrane and other methods.
[0004] However, these methods not only fail to completely solve the waterproof problem of rammed earth roof, some greatly increase the load of roof, some lose the function of drying highland barley on the original roof, some make the traditional culture of "punching a gat" gradually lost, and to some extent, destroy the local traditional village style. Therefore, on this basis, the waterproof measure suitable for local conditions is proposed, so as to further improve the waterproof performance of rammed earth roof and continue the style of local traditional residence.
[0005] In summary, the current waterproof method of a gat rammed earth roof cannot meet the demand. UTILITY MODEL CONTENT
[0006] The utility model discloses a traditional a gat rammed earth roof waterproof repair structure, aims at improving the problem that the roof of existing a gat rammed earth roof is easy to leak or seep.
[0007] The utility model adopts the following scheme:
[0008] A kind of traditional a gat rammed earth roof waterproof repair structure, including roof wood structure layer, waterproof layer, isolation layer and a gat soil surface layer are sequentially arranged in the roof wood structure layer from bottom to top, wherein, the waterproof layer is formed by TPO waterproofing membrane laying, the isolation layer is laid between waterproof layer and a gat soil surface layer to realize filtering and protection effect.
[0009] Further, the a gat soil surface layer is modified a gat soil surface layer treated by regional material.
[0010] Further, the isolation layer is geotextile.
[0011] Further, the isolation layer is oil felt.
[0012] Further, the overlapping part of the TPO waterproof coiled material is connected by hot air welding.
[0013] Further, the TPO waterproof coiled material is fixed on the wood structure layer by mechanical fixing method.
[0014] Further, the TPO waterproof coiled material extends to the eaves of the wood structure layer of the roof and is bent downward at the eaves to cover the side of the wood structure layer of the roof.
[0015] Further, the TPO waterproof coiled material is provided with a water droplet structure at the eaves.
[0016] Further, the parapet wall is provided on the arga rammed earth roof, a drainage opening is arranged at the bottom of the parapet wall, an additional waterproof layer is arranged on the side of the parapet wall, and the additional waterproof layer is connected to and located above the waterproof layer.
[0017] Beneficial effects:
[0018] The TPO waterproof coiled material is used as the main waterproof layer, on the one hand, the TPO waterproof coiled material has high quality and high flexibility, high temperature resistance, weather resistance, corrosion resistance, and excellent flame retardant performance, which provides a relative safety guarantee for people to use a fire pit indoors; on the other hand, the TPO waterproof coiled material is a light material, and the weight of the TPO waterproof coiled material is far lower than that of traditional waterproof materials such as reinforced concrete slabs, which is very suitable for wood structure dwellings, can effectively reduce the load burden of the wood structure, and the TPO waterproof coiled material can be constructed by hot air welding and mechanical fixing, both of which do not need open fire, thereby avoiding the fire risk caused by improper construction, and meeting the limitation requirement of the wood structure roof truss on open fire construction; further, the isolation layer can filter and protect, and prevent soil particles from damaging the waterproof layer during ramming. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a schematic view of a waterproof repair structure of a traditional arga rammed earth roof according to an embodiment of the present application;
[0020] Figure 2 is a schematic view of a TPO waterproof coiled material overlapping structure of a waterproof repair structure of a traditional arga rammed earth roof according to an embodiment of the present application;
[0021] Figure 3 is a schematic view of an eaves structure of a waterproof repair structure of a traditional arga rammed earth roof according to an embodiment of the present application;
[0022] Figure 4 is a slope drainage schematic view of a waterproof repair structure of a traditional argali rammed earth roof of an embodiment of the present application;
[0023] Figure 5 is another slope drainage schematic view of a waterproof repair structure of a traditional argali rammed earth roof of an embodiment of the present application;
[0024] Figure 6 is a schematic view of a parapet of a waterproof repair structure of a traditional argali rammed earth roof of an embodiment of the present application;
[0025] Figure 7 is a schematic view of a drainage mode of a parapet of a waterproof repair structure of a traditional argali rammed earth roof of an embodiment of the present application;
[0026] Icon: roof wood structure layer 1, waterproof layer 2, isolation layer 3, argali rammed earth surface layer 4, additional waterproof layer 5, eaves 6, slope 7, drainage port 8, parapet 9, lap joint 10. DETAILED DESCRIPTION
[0027] In combination with Figures 1 to 3 the schematic view, the embodiment provides a waterproof repair structure of a traditional argali rammed earth roof, a roof wood structure layer 1, a waterproof layer 2, an isolation layer 3 and an argali rammed earth surface layer 4 are sequentially arranged above the roof wood structure layer 1 from bottom to top, wherein the waterproof layer 2 is made of TPO waterproof roll material, and the isolation layer 3 is arranged between the waterproof layer 2 and the argali rammed earth surface layer 4 to achieve a protection effect.
[0028] In the embodiment, the roof wood structure layer 1 is the original structure of the existing argali rammed earth roof, which is built by wood and wood board, the wood board is placed above the wood to play a supporting and stabilizing role. The waterproof layer 2 is arranged above the roof wood structure layer 1, specifically, the TPO waterproof roll material can be arranged above the wood board by a mechanical fixing mode, so as to form the waterproof layer 2.
[0029] The waterproof layer 2 adopts TPO waterproof coiled material. The TPO waterproof coiled material takes ethylene-propylene rubber and polypropylene as base material, adds various modifiers, antioxidants, anti-aging agents and ultraviolet light receiving agents and other auxiliary materials to produce waterproof coiled material by extrusion. The TPO waterproof coiled material can still maintain its physical and chemical properties under direct sunlight, and can withstand a temperature difference range of -40℃ to 100℃. This coiled material shows good adaptability, not only can effectively resist displacement changes caused by day and night temperature difference, but also can maintain excellent flexibility in low temperature environment, and can ensure stable mechanical strength even in high temperature conditions, thereby continuously showing excellent waterproof efficiency in various climate conditions. At the same time, the TPO waterproof coiled material is a high-performance waterproof material with extremely excellent hydrophobicity, which can effectively prevent water molecules from penetrating into the material, thereby ensuring the waterproof effect of the roof. At the same time, the TPO material also has "super hydrophobicity", which can make water form a lotus effect on its surface (lotus effect refers to the fact that the lotus leaf has a hydrophobic and non-absorbing surface, and the rainwater falling on the leaf surface will form water droplets due to the surface tension), which can be easily drained with very small slope. Therefore, it is particularly suitable for roof waterproof application in plateau areas. The lap joint of adjacent TPO waterproof coiled material adopts hot air welding, the joint peeling strength is high, a safe and reliable sealing waterproof layer 2 is formed, and the detail treatment is excellent; the dense molecular structure and super strong joint strength make it have excellent physical root resistance; when repairing, the TPO single-layer roof only needs to be welded and repaired in the form of patching, which is a one-time repair after repair, and the repair cost is much lower than that of metal roof; in addition, with the large use of TPO waterproof coiled material, its price is more and more affordable, and it has extremely high cost performance in the comprehensive comparison.
[0030] In this embodiment, the argal soil surface layer 4 is a modified argal soil surface layer 4 treated by using regional materials. The modified argal soil surface layer 4 here refers to mixing crops such as highland barley straw with argal soil to enhance the stability and anti-erosion of the roof soil. The highland barley straw is rich in fiber, and the fiber combines with the cohesiveness and plasticity of argal soil or loess to form a network structure. This structure can significantly increase the cohesion and internal friction of the soil, thereby enhancing the cohesion of the soil and forming a more stable soil structure. Using crops such as highland barley straw as a modified material not only has feasibility, but also is a reasonable use of local resources. Specifically, during the construction of the modified argal soil surface layer 4, first, mix crops such as highland barley straw with argal soil or loess of coarse and medium particle size, then layer by layer tamp the roof, second, tamp the fine particle size argal soil or loess after tamping, and finally polish and refine the roof argal soil surface layer 4 and perform finishing and maintenance. The traditional process of adding crops such as highland barley straw can significantly improve the compactness of the argal soil surface layer 4.
[0031] The isolation layer 3 is arranged between the waterproof layer 2 and the arga earth surface layer 4, the isolation layer 3 is geotextile or oil felt; when the geotextile is used, the protection effect is achieved. During construction, the isolation layer 3 can be connected to the waterproof layer 2 by pasting or through fixing members, so as to prevent displacement during ramming of the arga earth surface layer 4. When the oil felt is used, the waterproof effect can be further improved, and the waterproof layer is protected.
[0032] In combination Figures 1 to 2 As shown in the embodiment, since the TPO waterproof roll material is formed by overlapping, the overlapping part 10 of the TPO waterproof roll material can be connected by hot air welding, so that the sealing performance of the overlapping joint is good, the peeling strength is high, and a safe and reliable sealing waterproof layer 2 is formed.
[0033] In combination Figures 1 to 3 As shown in the embodiment, in an embodiment, the TPO waterproof roll material extends to the eaves 6 of the roof wood structure layer 1 and is bent downward at the eaves 6 to cover the side of the roof wood structure layer 1. Here, the TPO waterproof roll material extends to below the eaves 6 and is bent downward, which can effectively prevent water from seeping from below the eaves 6. Further, the TPO waterproof roll material is provided with a water droplet structure at the eaves 6, and the water droplet structure can make the accumulated water quickly drip.
[0034] In combination Figures 4 to 7 As shown in the embodiment, further, when repairing some roofs with parapets 9, an additional waterproof layer 5 needs to be added, that is, another TPO waterproof roll material is laid on the top of the parapet 9 to prevent seepage from the parapet 9, and a drain 8 is arranged at part of the parapet 9 to drain the accumulated water; it should be noted that when there is a parapet 9, the roof needs to be pitched so that the slope surface 7 faces the drain 8, so that the accumulated water or rainwater can flow out of the drain 8 through the slope surface 7, reducing the generation of accumulated water. The slope surface 7 is designed to be inclined downward toward the drain 8, and the angle can be controlled at 1-2°.
[0035] During repair construction, the original arga earth surface layer 4 needs to be dug out first, then the dug arga earth is mixed with crop straw such as highland barley, then the waterproof layer 2 and the isolation layer 3 are laid on the exposed roof wood structure layer 1 in sequence, and finally the mixed arga earth and crop straw such as highland barley are laid back, and the roof is layered and rammed, then fine arga earth is used to ram again, and then the roof arga earth surface layer 4 is polished, refined and finished according to the original traditional arga earth surface layer construction process.
[0036] Through the scheme, the original roof appearance and cultural characteristics are preserved; the arga earth roof non-heritage ramming process is inherited; the high-quality waterproof performance is embodied; the respect for regional traditional materials is embodied; the materials used have high-quality environmental protection and sustainability; and the construction is safe and implementable.
[0037] It should be understood that the above are only preferred embodiments of the present application, the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solutions falling within the scope of the present application are within the protection scope of the present application.
[0038] The above description of the drawings used in the embodiments only shows some embodiments of the present application, and should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained without creative labor.
Claims
1. A waterproofing repair structure for traditional adobe earthen roof, comprising a roof wooden structure layer, characterized in that, The waterproof layer is made of TPO waterproof coiled material.
2. The waterproofing repair structure of traditional Atchuthurai earthen roof as claimed in claim 1, wherein, The isolation layer is geotextile.
3. The waterproofing repair structure of traditional Ata Tomi soil roof according to claim 1, characterized in that, The isolation layer is oil felt.
4. The waterproofing repair structure of traditional Atch roof according to claim 1, wherein, The overlapping part of the TPO waterproof coiled material is connected by hot air welding.
5. The waterproofing repair structure of traditional Atch roof according to claim 1, wherein, The TPO waterproof coiled material extends to the eaves of the wooden structure layer and is bent downward at the eaves to cover the side of the wooden structure layer.
6. The waterproofing repair structure of traditional Attertjnaq soil roof according to claim 5, wherein, The TPO waterproof coiled material is provided with a water dripping structure at the eaves.
7. The waterproofing repair structure of traditional atigadung earth roof as claimed in claim 1, wherein, The parapet wall is provided with a drainage opening at the bottom.
8. The waterproofing repair structure of traditional Atch roof according to claim 1, wherein, The TPO waterproof coiled material is fixed on the wooden structure layer by mechanical fixing method.