A method for repairing leaks in a roof settlement joint

Abstract

The application discloses a kind of roofing settlement joint water leakage repair methods, it is related to waterproof construction field;Including the following steps: cutting off the settlement joint both sides building, chiseling out the deformation joint edge reverse ridge and setting fire-retardant plate at the bottom of the deformation joint;Along the length direction of the deformation joint, set fireproof plate, the fireproof plate is attached to the deformation joint, the upper portion of the fireproof plate is provided with V-shaped opening;In the roofing structure layer, along the length of the deformation joint, centering is planted, pours concrete and carries out closed water test until not water leakage;Building waterproof layer carries out closed water test again, completes repair, and reversely buckles decorative panel.It is improved fireproof effect by setting fire-retardant plate and fireproof plate, closed water test is carried out multiple times, and the emergence of water leakage problem is excluded.

Description

Technical Field

[0001] This invention relates to the field of waterproof construction technology, and in particular to a method for repairing leaks in roof settlement joints. Background Technology

[0002] Roof settlement joints are a common feature in building structures, primarily used to accommodate deformations caused by temperature changes, foundation settlement, and other factors during the building's use.

[0003] However, due to improper design, construction quality issues, or excessive settlement deformation later on, water leakage often occurs at settlement joints, seriously affecting the use and safety of buildings. Therefore, how to effectively repair roof settlement joint leakage is an urgent problem to be solved in the field of building waterproofing technology. Summary of the Invention

[0004] To address the above problems, this invention provides a method for repairing leaks in roof settlement joints, characterized by the following steps:

[0005] The buildings on both sides of the settlement joint were removed, the edge of the expansion joint was chiseled away, and a flame-retardant board was installed at the bottom of the expansion joint.

[0006] A fireproof board is provided along the length of the expansion joint, the fireproof board is fitted to the expansion joint, and a V-shaped opening is provided at the upper part of the fireproof board;

[0007] Reinforcing bars are installed centered along the length of the expansion joint in the roof structural layer, concrete is poured, and a water tightness test is conducted until no water leakage occurs.

[0008] The building's waterproofing layer underwent another water tightness test to complete the repair, and the decorative panels were then inverted.

[0009] In one embodiment, the removal of the building on both sides of the settlement joint includes a finishing layer, a protective layer, a waterproof layer, a leveling layer, and a slope-forming layer. Removing the finishing layer can remove damaged or potentially problematic materials; removing the protective layer can improve the adhesion between the old and new materials; removing the waterproof layer can ensure that the repair work eradicates the leakage problem; removing the leveling layer ensures that the new leveling layer has better flatness; and removing the slope-forming layer can improve drainage performance.

[0010] In one embodiment, the fire resistance time of the flame-retardant board should be greater than a first threshold time.

[0011] In one embodiment, the pouring of concrete and conducting a water tightness test to ensure no leakage includes the curing of the post-cast concrete and the reinforced concrete; if the water tightness test fails, waterproof materials are used for repair.

[0012] In one embodiment, conducting a water tightness test on the building waterproofing layer includes installing a waterproof membrane bridging the expansion joint, the waterproof membrane being pressed into the waterproofing layer.

[0013] In one embodiment, the waterproof membrane is positioned along the V-shaped opening of the fireproof board to act as a buffer strip.

[0014] In one embodiment, the repair includes setting an insulation layer and a waterproof protective layer.

[0015] In one embodiment, the upper side of the decorative panel is close to the settling joint curb, and the lower edges on both sides abut against the decorative layer.

[0016] Beneficial effects of the invention: Unlike existing technologies, this invention discloses a method for repairing leaks in roof settlement joints, relating to the field of waterproofing construction; it includes the following steps: cutting off the building structures on both sides of the settlement joint, chiseling away the edge retaining wall of the expansion joint, and installing a flame-retardant board at the bottom of the expansion joint; installing a fireproof board along the length of the expansion joint, the fireproof board fitting against the expansion joint, with a V-shaped opening at the top of the fireproof board; installing reinforcing bars in the roof structural layer along the center of the expansion joint length, pouring concrete, and conducting a water tightness test until no leakage occurs; conducting another water tightness test on the building waterproofing layer to complete the repair, and then inverting the decorative panel. By setting up the flame-retardant board and fireproof board, the fireproofing effect is improved, and multiple water tightness tests eliminate the possibility of leakage. Attached Figure Description

[0017] Figure 1 A schematic flowchart of an embodiment of the roof settlement joint leakage repair method provided by the present invention;

[0018] Figure 2 This is a structural schematic diagram of one embodiment of a roof settlement joint.

[0019] In the diagram: 1: Flame-retardant board, 2: Fireproof board, 3: Rebar, 4: Structural layer, 5: Slope-finishing layer, 6: Leveling layer, 7: Waterproof membrane, 8: Insulation layer, 9: Protective layer, 10: Finishing layer, 11: Finishing panel. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] Roof settlement joints are structural features designed to accommodate deformations caused by temperature changes and foundation settlement. However, due to inadequate design, construction defects, or unexpected settlement deformation, leaks frequently occur at settlement joints. This not only affects the normal use of the building but may also jeopardize structural safety. Figures 1-2 As shown, Figure 1 A schematic flowchart of an embodiment of the roof settlement joint leakage repair method provided by the present invention; Figure 2 This is a structural schematic diagram of one embodiment of a roof settlement joint.

[0022] S11: Removing the buildings on both sides of the settlement joint. Removing the buildings on both sides of the settlement joint allows for a clear identification of the source of the leakage problem, providing a direct working surface for the repair work. Completely removing the damaged or potentially problematic building layers ensures that the new waterproofing layer and other structural layers can have a good foundation for construction, thereby improving the long-term effectiveness and reliability of the repair work.

[0023] Removing the edge of the expansion joint and the original edge of the expansion joint, and roughening the surface, can increase the bonding area between the newly poured concrete and the original roof structure layer, thereby improving the bond strength between the two and ensuring the stability of the newly built edge.

[0024] Installing a flame-retardant board at the bottom of the expansion joint significantly improves the fire resistance of the roof system. As an isolation layer at the bottom of the expansion joint, the flame-retardant board can effectively isolate heat sources and prevent the spread of fire, while also providing some protection for the waterproof layer and other building materials.

[0025] S12: A fireproof board is installed along the length of the expansion joint, and the fireproof board fits the expansion joint. In this embodiment, the fireproof board can be a color steel rock wool core sandwich panel, which is composed of color steel plate and rock wool, thus improving the fire resistance of the fireproof board. The color steel rock wool core sandwich panel can be used as the inner template of the cast-in-place concrete backsplash, simplifying the construction process, eliminating the need for additional template support, and saving materials and time.

[0026] The fireproof board features a V-shaped opening at the top. This V-shaped opening accommodates deformation at roof settlement joints. When the roof settles or expands, the V-shaped opening acts as a buffer, allowing for a certain degree of displacement without damaging the waterproofing layer or other structural layers. The V-shaped opening also facilitates construction, ensuring proper installation of the waterproofing membrane at complex joints, such as the inside corners of inverted berms, thereby improving construction efficiency and quality.

[0027] S13: Rebar is installed at the center of the expansion joint along the roof structural layer. Rebar installation can improve the connection strength between the new and old concrete, ensure that the new inverted wall is tightly bonded to the original structural layer, enhance structural stability, and increase the load-bearing capacity of the newly poured concrete, enabling it to withstand greater loads and ensure structural safety.

[0028] Setting up color steel rock wool sandwich panels as inner formwork before pouring concrete simplifies the construction process and shortens the construction period. The newly poured retaining wall fits tightly with the color steel rock wool sandwich panels, providing a solid foundation for the subsequent waterproofing layer.

[0029] A water tightness test is then conducted until no leakage occurs. This test is a crucial method for verifying the effectiveness of the waterproofing layer, allowing for the timely detection and repair of leaks and ensuring the integrity of the waterproofing layer. Repeating the water tightness test until it passes ensures that the repaired settlement joints will not leak, guaranteeing project quality. The water tightness test ensures the effectiveness of the waterproofing layer, helping to prevent structural damage caused by water seepage and thus extending the building's lifespan. The slope-finding layer and leveling layer are then installed after the water tightness test.

[0030] S14: Through the building waterproofing layer, especially the modified bitumen waterproofing membrane, a continuous waterproof barrier can be formed around the settlement joint to effectively prevent water penetration; the waterproofing membrane should be set along the "V-shaped" opening of the color steel rock wool sandwich panel, which can act as a buffer zone to adapt to uneven foundation settlement and prevent the waterproofing layer from cracking.

[0031] Next, a water tightness test is conducted. This test can detect whether there are any leaks or seepage points in the waterproof layer. By repeating the water tightness test until it passes, the integrity and effectiveness of the waterproof layer can be ensured.

[0032] The repair process includes installing an insulation layer and a protective layer. The insulation layer improves the roof's thermal insulation performance, reduces energy loss, and enhances thermal comfort in the living or working environment. The protective layer extends the lifespan of the waterproofing layer and reduces the need for maintenance and replacement.

[0033] The inverted decorative panel, in this embodiment, is a U-shaped stainless steel design. By using the inverted U-shaped stainless steel decorative panel, the waterproof layer on the retaining wall can be further protected from damage, enhancing the waterproof effect. The design of the decorative panel leaves a certain amount of space to accommodate the deformation of the settlement joint and ensure the stability of the structure.

[0034] In summary, this invention discloses a method for repairing leaks in roof settlement joints, relating to the field of waterproofing construction. The method includes the following steps: removing the structural elements on both sides of the settlement joint, chiseling away the edge retaining wall of the expansion joint, and installing a fire-retardant board at the bottom of the expansion joint; installing a fireproof board along the length of the expansion joint, the fireproof board fitting snugly against the expansion joint, with a V-shaped opening at the top of the fireproof board; installing reinforcing bars centered along the length of the expansion joint in the roof structural layer, pouring concrete, and conducting a water tightness test until no leakage occurs; conducting another water tightness test on the building's waterproofing layer to complete the repair, and then inverting the decorative panel. By installing the fire-retardant board and fireproof board, the fire resistance is improved, and multiple water tightness tests eliminate the possibility of leakage.

[0035] In one embodiment, the structure to be cut off on both sides of the settlement joint includes a finishing layer, a protective layer, a waterproof layer, a leveling layer, and a slope layer. Cutting off the finishing layer removes damaged or potentially problematic materials, making it easier for construction workers to inspect and assess the condition of the underlying layer, ensuring that repairs are targeted at the actual problems. Cutting off the protective layer improves the adhesion between the old and new materials, and removing a damaged protective layer ensures that the new waterproof layer adheres tightly to the structural layer, improving waterproofing. Cutting off the waterproof layer ensures that the repair work eradicates leakage problems, and the newly laid waterproof layer can better adapt to structural changes, improving waterproofing performance. Cutting off the leveling layer ensures that the new leveling layer has better flatness, and removing and resetting the leveling layer ensures the consistency of the entire roof structure, helping to improve the overall performance of the roof. Cutting off the slope layer improves drainage performance, and a suitable slope layer can reduce the load on the roof, improving the overall stability of the structure. The width of the cut on each side is at least 600 mm.

[0036] In one embodiment, the fire resistance time of the flame-retardant board should be greater than the first threshold time, that is, in the event of a fire, the flame-retardant board will only be ignited if its fire resistance time is greater than the first threshold time, for example, the first threshold time is 1.5h, and the flame-retardant board is fully fixed to both sides of the expansion joint.

[0037] In one embodiment, pouring concrete and conducting a water tightness test to ensure no leakage includes the curing of the post-cast concrete and the inverted concrete; the stability and waterproof performance of the structure are ensured by supporting the outer formwork of the post-cast concrete inverted concrete; and the construction process is simplified, the use of formwork materials is reduced, and the cost is lowered by using color steel rock wool sandwich panels as the inner formwork.

[0038] The poured concrete enhances the structural strength of the retaining wall, ensuring it can withstand the expected loads. The newly poured retaining wall is tightly bonded to the color steel rock wool sandwich panel, providing a solid foundation for the subsequent waterproofing layer. The height of the poured retaining wall concrete should be at least 35mm higher than the roof finish layer.

[0039] The curing of the concrete backsplash ensures that the concrete reaches the expected strength, which is crucial for ensuring the safety and durability of the structure.

[0040] If the water tightness test fails, repair it with waterproof material. The water tightness test ensures the effectiveness of the waterproof layer, helps prevent structural damage caused by water leakage, and thus extends the service life of the building. Waterproof materials such as polyurethane or leak-stopping agents can be used for repair. After repair, repeat the water tightness test until there is no leakage. By repeating the water tightness test until it passes, it can be ensured that the repaired settlement joint will not leak, thus guaranteeing the quality of the project.

[0041] In one embodiment, the water tightness test of the building's waterproofing layer includes installing a waterproof membrane that crosses expansion joints. This waterproof membrane can adapt to the displacement of settlement joints, maintaining its waterproofing performance and preventing water penetration even when the building experiences uneven settlement. The bottom edge of the waterproof membrane needs to be pressed into the waterproof protective layer by 1-2 cm to ensure the continuity of the waterproofing layer and prevent water penetration at the expansion joints. Pressing the waterproof membrane into the waterproof layer ensures the sealing of the waterproof layer at the expansion joints, improving waterproofing performance. Furthermore, pressing it into the waterproof layer prevents water from seeping through the gaps between the waterproof membrane and the protective layer, thereby improving the overall waterproofing effect.

[0042] In one embodiment, the waterproof membrane is positioned along the V-shaped opening of the fireproof board to act as a buffer zone. When uneven settlement occurs in the building, the V-shaped opening can serve as a buffer zone, allowing the waterproof membrane to move moderately with the displacement of the expansion joint, thereby preventing the waterproof membrane from cracking due to excessive stretching or compression. The waterproof membrane is fitted along the V-shaped opening, which ensures the continuity and integrity of the waterproof layer at the expansion joint, prevents moisture from seeping through the gaps, and improves the overall waterproof effect. The V-shaped opening design helps maintain stable contact between the waterproof membrane and the color steel rock wool sandwich panel, ensuring a good bond between the waterproof layer and the building structure, and improving the stability of the structure.

[0043] In one embodiment, the repair includes installing an insulation layer and a waterproof protective layer; the insulation layer can improve the thermal insulation performance of the roof and reduce heat loss, thereby improving the thermal comfort of the living or working environment; the waterproof protective layer can further enhance the durability and damage resistance of the waterproof layer, ensuring the long-term effectiveness of the waterproof layer.

[0044] In one embodiment, the upper side of the decorative panel is close to the settlement joint retaining wall, and the lower edges on both sides abut against the finishing layer. By inverting the "U"-shaped stainless steel (or aluminum, or plastic) decorative panel, the waterproof layer on the settlement joint retaining wall can be effectively protected from damage. This is because the decorative panel can block direct impacts from external factors on the waterproof layer, such as weather changes or object impacts. The joints of the decorative panels are sealed with sealant, which further improves the waterproof effect and ensures that moisture does not seep in from the gap between the decorative panel and the finishing layer. By abutting the lower edge of the decorative panel against the finishing layer, the decorative panel can be firmly fixed in place, enhancing the stability of the entire roof structure.

[0045] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for repairing leaks in roof settlement joints, characterized in that, Includes the following steps: The buildings on both sides of the settlement joint were removed, the edge of the expansion joint was chiseled away, and a flame-retardant board was installed at the bottom of the expansion joint. A fireproof board is provided along the length of the expansion joint, the fireproof board is fitted to the expansion joint, and a V-shaped opening is provided at the upper part of the fireproof board; Reinforcing bars are installed centered along the length of the expansion joint in the roof structural layer, concrete is poured, and a water tightness test is conducted until no water leakage occurs. The building's waterproofing layer will undergo a water tightness test to complete the repair, and the decorative panels will be inverted. Wherein, the fire resistance time of the flame-retardant board is greater than the first threshold time; The process of pouring concrete and conducting a water tightness test to ensure no leakage includes the curing of the concrete poured after the supports are erected and the concrete of the retaining wall; if the water tightness test fails, waterproof materials are used for repair. The water tightness test of the building waterproofing layer includes installing a waterproof membrane that spans the expansion joint, and the waterproof membrane is pressed into the waterproofing layer; The waterproof membrane is arranged along the V-shaped opening of the fireproof board to act as a buffer strip. The upper side of the decorative panel is close to the settling joint curb, and the lower edges on both sides abut against the decorative layer.

2. The method according to claim 1, characterized in that, The removal of the structures on both sides of the settlement joint includes the finishing layer, protective layer, waterproof layer, leveling layer, and slope layer. Removing the finishing layer can remove damaged or potentially problematic materials. Removing the protective layer can improve the adhesion between the old and new materials. Removing the waterproof layer can ensure that the repair work eliminates the leakage problem. Removing the leveling layer can ensure that the new leveling layer has better flatness. Removing the slope layer can improve drainage performance.

3. The method according to claim 2, characterized in that, The repair process includes installing an insulation layer and a waterproof protective layer.

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