Outer window waterproof repairing joint and construction method thereof

Abstract

According to the external window waterproof repairing joint and the construction method thereof, a groove is formed between a window frame profile and a window wall and is chiseled to a structural layer, and an original invalid sealing material is removed; the technical problem that water seepage repeatedly occurs in the outer window repairing process is solved through a composite waterproof system in which the bonding force is improved by enhancing the base layer through the interface agent, the main waterproof layer is formed by the macromolecule anti-seepage waterproof slurry, the gaps are filled and compacted through the polymer sealing plaster and the anti-cracking performance is enhanced through the waterproof anti-cracking cloth.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building waterproofing, in particular to an external window waterproofing repair joint and a construction method thereof. BACKGROUND

[0002] The joint between the external window and the wall body of an old building is a high-risk area of water leakage. Due to long-term influence of wind pressure, temperature stress and structure settlement, the sealing material between the window frame and the wall body is prone to aging and cracking, causing rainwater to seep into the room along the gap. In the prior art, the repair method for external window water leakage mainly adopts surface plugging or local glue injection, which can only alleviate the leakage in the short term and cannot fundamentally solve the gap problem between the window frame and the wall body due to deformation, resulting in repeated water leakage.

[0003] In addition, the existing building atlas and specification mainly aim at the waterproof structure of the external window of a newly-built building, and lack specific technical guidance for the joint structure of the repair of the external window of an existing building. The construction personnel often operate according to experience, lack standardized construction methods, and the repair quality is uneven, so that the durability is difficult to guarantee. SUMMARY

[0004] The present application solves the problem of providing an external window waterproofing repair joint and a construction method thereof.

[0005] In a first aspect, the present application discloses an external window waterproofing repair joint, comprising a window frame profile, a window wall body and a waterproof structure arranged between the two, the waterproof structure comprising: an upper waterproof joint arranged between the upper part and the left and right sides of the window frame profile and the corresponding upper edge and the left and right sides of the window wall body, the upper waterproof joint comprising an upper recess along the window frame profile and an upper interface agent layer, an upper high-molecular anti-permeable waterproof slurry layer and an upper polymer seal mortar layer arranged in the upper recess in sequence; and a lower waterproof joint arranged between the lower part of the window frame profile and the lower edge of the window wall body, comprising: a slope layer arranged on the surface of the lower edge of the window wall body and having a drainage slope inclined to the outside; a lower recess along the lower part of the window frame profile; and a lower interface agent layer, a lower high-molecular anti-permeable waterproof slurry layer and a lower polymer seal mortar layer arranged in the lower recess in sequence.

[0006] In some embodiments, the upper groove and the lower groove have a width of 20 mm and a depth of 15 mm, and are chiseled to the structural layer; the interface agent layer is a two-component interface agent, the high-molecular anti-permeation waterproof slurry layer is coated on the surface of the interface agent layer after drying, and the polymer sealing mortar layer is filled in the upper groove and the lower groove and is extruded to be compact.

[0007] In some embodiments, the upper waterproof joint further comprises an upper waterproof and anti-crack cloth layer, which is pressed into the upper high-molecular anti-permeation waterproof slurry layer coated on the upper edge and the left and right side surfaces of the window wall body, the width of the upper waterproof and anti-crack cloth layer is 200 mm, and 300 mm long upper waterproof and anti-crack cloth reinforcing layers are arranged at the two corners of the upper edge of the window wall body.

[0008] In some embodiments, the lower waterproof joint further comprises a lower waterproof and anti-crack cloth layer, which is pressed into the lower high-molecular anti-permeation waterproof slurry layer coated on the lower edge surface of the window wall body, the width of the lower waterproof and anti-crack cloth layer is 200 mm, and 300 mm long lower waterproof and anti-crack cloth reinforcing layers are arranged at the two corners of the lower edge of the window wall body.

[0009] In some embodiments, the upper groove and the lower groove are continuously formed along the four sides of the window frame profile, and the interface agent layer is fully brushed on the inner wall surface of the upper groove and the lower groove.

[0010] In some embodiments, the surface of the polymer sealing mortar layer is flush with the surface of the window frame profile.

[0011] In a second aspect, the present application discloses a waterproof repair construction method for an external window, which is used to construct the external window waterproof repair joint as described in the first aspect, and comprises the following steps: Grooving is performed along the upper part, the left and right sides, and the lower part of the window frame profile, and is chiseled to the structural layer; A two-component interface agent is fully brushed on the inner wall surface of the upper groove and the lower groove to form an interface agent layer; After the interface agent layer is dried, a high-molecular anti-permeation waterproof slurry is coated in the upper groove and the lower groove to form a high-molecular anti-permeation waterproof slurry layer; A polymer sealing mortar is filled in the upper groove and the lower groove and is extruded to be compact to form a polymer sealing mortar layer.

[0012] In some embodiments, after the interface agent layer is dried, a high-molecular anti-permeation waterproof slurry is coated in the upper groove and the lower groove to form a high-molecular anti-permeation waterproof slurry layer, and the method further comprises: Coating polymer anti-permeation waterproof slurry on the upper edge, left and right sides and lower edge surface of the window wall, and pressing waterproof anti-cracking cloth with a width of 200mm into the polymer anti-permeation waterproof slurry; setting a 300mm long waterproof anti-cracking cloth reinforcing layer in the four corner regions.

[0013] In some embodiments, the coating thickness of the two-component interface agent is 0.5-1.0mm; and the coating thickness of the polymer anti-permeation waterproof slurry is 1.5-2.0mm.

[0014] In some embodiments, after filling and extruding the polymer sealant in the upper and lower grooves to form a polymer sealant layer, the method further comprises: After the polymer sealant layer is cured, coating exterior wall paint on the surface for decoration and repair The present application discloses an external window waterproof repair node and a construction method thereof, the node comprising a window frame profile, a window wall and a waterproof structure arranged between the two, the waterproof structure comprising: an upper waterproof node arranged between the upper part and the left and right sides of the window frame profile and the corresponding upper edge and the left and right sides of the window wall, the upper waterproof node comprising an upper groove formed along the window frame profile and an upper interface agent layer, an upper polymer anti-permeation waterproof slurry layer and an upper polymer sealant layer arranged in the upper groove in sequence; and a lower waterproof node arranged between the lower part of the window frame profile and the lower edge of the window wall, comprising: a sloping layer arranged on the lower edge surface of the window wall, having a drainage slope inclined to the outside; a lower groove formed along the lower part of the window frame profile; and a lower interface agent layer, a lower polymer anti-permeation waterproof slurry layer and a lower polymer sealant layer arranged in the lower groove in sequence. By forming grooves between the window frame profile and the window wall and chiseling to the structural layer, the original failed sealing material is removed, the interface agent enhances the base layer to improve the adhesion, the polymer anti-permeation waterproof slurry forms a main waterproof layer, the polymer sealant fills and compacts the gap, and the waterproof anti-cracking cloth enhances the anti-cracking performance of the composite waterproof system, thereby solving the technical problem of repeated water seepage in the external window repair process. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 The plane schematic diagram of the external window waterproof repair node provided by the embodiments of the present application; Figure 2This is a cross-sectional schematic diagram of the waterproof repair node for exterior windows provided in an embodiment of the present invention.

[0017] Reference numerals: 1. Upper waterproof joint; 2. Upper window frame profile; 3. Upper edge of window; 4. Upper interface agent layer; 5. Upper polymer waterproof slurry layer; 6. Upper polymer sealant layer; 7. Upper waterproof and crack-resistant fabric layer; 8. Upper waterproof and crack-resistant fabric reinforcement layer; 10. Lower waterproof joint; 11. Lower window frame profile; 12. Lower edge of window; 13. Lower interface agent layer; 14. Lower polymer waterproof slurry layer; 15. Lower polymer sealant layer; 16. Lower waterproof and crack-resistant fabric layer; 17. Lower groove; 18. Upper groove. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and, or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and, or collections thereof.

[0020] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" 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. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the terms “and” and “or” as used in this specification and the appended claims refer to any combination of one or more of the associated listed items and all possible combinations, and include such combinations.

[0023] like Figure 1 and Figure 2 As shown, this invention discloses a waterproof repair joint for exterior windows, including window frame profiles, window wall, and a waterproof structure disposed between the two. The window frame profiles include an upper window frame profile 2 and a lower window frame profile 11. The window wall includes an upper window edge 3 and a lower window edge 12. The waterproof structure includes an upper waterproof joint 1 and a lower waterproof joint 10.

[0024] The upper waterproof node 1 is located between the upper profile 2 of the window frame, the upper edge 3 of the window, and the walls on the left and right sides. The upper waterproof node 1 includes an upper groove 18 opened along the upper profile 2 of the window frame, and an upper interface agent layer 4, an upper polymer anti-seepage waterproof slurry layer 5, an upper polymer sealant layer 6, and an upper waterproof and crack-resistant cloth layer 7 sequentially arranged in the upper groove 18.

[0025] Specifically, the upper groove 18 is opened around the upper profile 2 of the window frame and the left and right side profiles, with a width of 20mm and a depth of 15mm, and is chiseled down to the structural layer, which is the upper edge 3 of the window and the left and right side walls, to completely remove the original failed sealing material and ensure reliable adhesion between the new waterproof layer and the base layer.

[0026] The upper interface agent layer 4 is a two-component interface agent, which is fully brushed onto the inner wall surface of the upper groove 18 and the upper edge 3 of the window to enhance the bonding strength between the base layer and the subsequent waterproof material and prevent delamination.

[0027] The upper polymer waterproof slurry layer 5 is coated on the surface of the upper interface agent layer 4 after drying, with a thickness of 1.5-2.0 mm, forming the first main waterproof layer, which uses the waterproof properties of polymer materials to block water penetration.

[0028] The upper polymer sealant layer 6 fills the upper groove 18 and is compressed and compacted, with its surface flush with the surface of the window frame profile. It is used to fill the gaps inside the groove, provide an elastic seal, and adapt to minor deformations between the window frame and the wall.

[0029] The upper waterproof and crack-resistant fabric layer 7, with a width of 200mm, is pressed into the upper polymer anti-seepage and waterproof slurry layer 5 applied to the upper edge 3 and the left and right sides of the window. This layer enhances the tensile strength and crack resistance of the waterproof layer, preventing cracking caused by temperature stress. In areas of stress concentration, specifically at the two corners of the upper edge 3 of the window, a 300mm long waterproof and crack-resistant fabric reinforcement layer 8 is provided to strengthen weak points.

[0030] The lower waterproof node 10 is located between the lower profile 11 of the window frame and the lower edge 12 of the window.

[0031] The lower waterproof node 10 includes a lower groove 17 formed along the lower profile 11 of the window frame, and a lower interface agent layer 13, a lower polymer anti-seepage waterproof slurry layer 14, a lower polymer sealant layer 15, and a lower waterproof and crack-resistant cloth layer 16 sequentially disposed in the lower groove 17.

[0032] The lower groove 17 has the same dimensions as the upper groove 18, with a width of 20mm and a depth of 15mm, and is chiseled down to the structural layer, which is the wall at the lower edge of the window 12.

[0033] The lower waterproof and crack-resistant fabric layer 16 is provided with a 300mm long lower waterproof and crack-resistant fabric reinforcement layer (not shown in the figure), which is specifically set at the two corners of the lower edge 12 of the window.

[0034] Unlike the upper waterproof node 1, the lower waterproof node 10 also includes a slope-forming layer (not shown in the figure), which is set on the surface of the lower edge 12 of the window wall.

[0035] The slope-finding layer has a drainage slope that slopes outwards, with the slope controlled at 2%-3%. The thickness of the slope-finding layer varies gradually to ensure that rainwater can drain smoothly without backflow.

[0036] After the slope-finding layer has dried and cured, the lower groove 17 is made on its surface and on the lower profile 11 of the window frame. Then, the lower interface agent layer 13, the lower polymer waterproof slurry layer 14, the lower polymer sealant layer 15, and the lower waterproof and crack-resistant cloth layer 16 are applied in sequence. The lower waterproof and crack-resistant cloth layer 16 is pressed into the lower polymer waterproof slurry layer 14 applied to the surface of the slope-finding layer, forming a composite waterproof structure with the slope-finding layer.

[0037] In this embodiment, the upper groove 18 and the lower groove 17 are continuously opened around the perimeter of the window frame profile to form a closed waterproof structural ring, ensuring a circumferential seal.

[0038] This invention also provides a construction method for the above-mentioned waterproof repair joint of exterior windows, specifically including the following steps: Grooves are cut along the upper, left and right sides and the lower perimeter of the window frame profile to form upper and lower grooves, and then removed down to the structural layer.

[0039] For base treatment and grooving, grooves are cut along the upper, left and right sides, and lower perimeter of the window frame profile using a cutting machine to form upper groove 18 and lower groove 17 with a width of 20mm and a depth of 15mm, and then removed down to the structural layer. Loose dust, debris, and any existing, expired sealant are cleaned from the grooves to ensure the base layer is firm, clean, and free of oil.

[0040] A two-component interface agent is fully brushed onto the inner wall surfaces of the upper and lower grooves to form an interface agent layer.

[0041] The two-component interface agent is applied to the inner wall surfaces of the upper groove 18 and the lower groove 17, as well as the corresponding surface of the window wall, forming an upper interface agent layer 4 and a lower interface agent layer 13. The coating thickness is controlled between 0.5-1.0 mm to ensure no missed areas. The interface agent is allowed to dry, typically for 4-6 hours, depending on the ambient temperature and humidity.

[0042] After the interface agent layer dries, a polymer anti-seepage and waterproof slurry is applied to the upper and lower grooves to form a polymer anti-seepage and waterproof slurry layer.

[0043] After the interface agent layer dries, apply the waterproof slurry and lay the crack-resistant fabric. Then, apply the polymer waterproof slurry to the upper groove 18, lower groove 17, and the surface of the window wall to form an upper polymer waterproof slurry layer 5 and a lower polymer waterproof slurry layer 14, with a thickness of 1.5-2.0 mm. Before the slurry dries, press a 200 mm wide waterproof crack-resistant fabric into the polymer waterproof slurry to ensure that the fabric is fully impregnated with the slurry, without air bubbles or wrinkles. An additional 300 mm long layer of waterproof crack-resistant fabric is laid as a reinforcement layer at the four corners of the window frame.

[0044] The upper and lower grooves are filled with polymer sealant and compacted to form a polymer sealant layer.

[0045] After the polymer waterproofing slurry layer dries, which usually takes 24 hours, the polymer sealant is filled into the upper groove 18 and the lower groove 17. A special scraper is used to compact the sealant to ensure that it is fully filled without gaps. The surface is then smoothed and flush with the surface of the window frame profile, forming the upper polymer sealant layer 6 and the lower polymer sealant layer 15.

[0046] After the polymer sealant layer has cured, exterior wall paint is applied to the surface for decoration and repair.

[0047] After the polymer sealant layer has cured, typically 48 hours, the surface is coated with exterior wall paint of the same color as the exterior wall to restore the appearance of the facade.

[0048] This invention reconstructs a waterproof structure through grooving, forming a multi-layered waterproof system consisting of an interface agent, waterproof slurry, sealant, and crack-resistant fabric. Each layer works synergistically: the interface agent addresses adhesion, the waterproof slurry prevents seepage, the sealant adapts to deformation, and the crack-resistant fabric prevents cracking. This construction method is suitable for repairing leaks in the exterior windows of old buildings, offering convenient construction, controllable quality, and good durability.

[0049] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A waterproof repair joint for exterior windows, characterized in that, It includes window frame profiles, window wall, and a waterproof structure installed between the two, wherein the waterproof structure includes: The upper waterproof joint is located between the upper part and the left and right sides of the window frame profile and the corresponding upper edge and left and right sides of the window wall. The upper waterproof joint includes an upper groove formed along the window frame profile and, sequentially, an upper interface agent layer, an upper polymer anti-seepage waterproof slurry layer, and an upper polymer sealant layer disposed within the upper groove. A lower waterproof joint, located between the lower part of the window frame profile and the lower edge of the window wall, includes: A slope-finding layer is provided on the lower surface of the window wall, having a drainage slope sloping outwards; The lower groove is formed along the lower part of the window frame profile; and The lower interface agent layer, the lower polymer anti-seepage and waterproof slurry layer, and the lower polymer sealant layer are sequentially arranged in the lower groove.

2. The waterproof repair joint for exterior windows according to claim 1, characterized in that, The upper and lower grooves are 20mm wide and 15mm deep, and are chiseled down to the structural layer; the interface agent layer is a two-component interface agent; the polymer anti-seepage and waterproof slurry layer is coated on the surface of the interface agent layer after it has dried; and the polymer sealant layer is filled in the upper and lower grooves and compressed to be dense.

3. The waterproof repair joint for exterior windows according to claim 1, characterized in that, The upper waterproof node also includes an upper waterproof and crack-resistant fabric layer, which is pressed into the upper polymer anti-seepage and waterproof slurry layer applied to the upper edge and left and right sides of the window wall. The width of the upper waterproof and crack-resistant fabric layer is 200mm, and a 300mm long upper waterproof and crack-resistant fabric reinforcement layer is provided at the two corners of the upper edge of the window wall.

4. The waterproof repair joint for exterior windows according to claim 1, characterized in that, The lower waterproof node also includes a lower waterproof and crack-resistant fabric layer, which is pressed into the lower polymer anti-seepage and waterproof slurry layer applied to the lower edge surface of the window wall. The width of the lower waterproof and crack-resistant fabric layer is 200mm, and a 300mm long lower waterproof and crack-resistant fabric reinforcement layer is provided at the two corners of the lower edge of the window wall.

5. The waterproof repair joint for exterior windows according to claim 1, characterized in that, The upper and lower grooves are continuously formed around the perimeter of the window frame profile, and the interface agent layer is fully applied to the inner wall surface of the upper and lower grooves.

6. The exterior window waterproofing repair joint according to any one of claims 1-5, characterized in that, The surface of the polymer sealant layer is flush with the surface of the window frame profile.

7. A method for waterproofing repair of exterior windows, used to construct the waterproofing repair joint of exterior windows as described in any one of claims 1-6, characterized in that, Includes the following steps: Grooves are cut along the top, left and right sides and the bottom perimeter of the window frame profile, and then chiseled down to the structural layer; A two-component interface agent is fully brushed onto the inner wall surfaces of the upper and lower grooves to form an interface agent layer; After the interface agent layer dries, a polymer anti-seepage and waterproof slurry is applied to the upper and lower grooves to form a polymer anti-seepage and waterproof slurry layer. The upper and lower grooves are filled with polymer sealant and compacted to form a polymer sealant layer.

8. The method for waterproofing and repairing exterior windows according to claim 7, characterized in that, After the interface agent layer dries, a polymer anti-seepage and waterproof slurry is applied to the upper and lower grooves to form a polymer anti-seepage and waterproof slurry layer, which further includes: Apply a polymer waterproof and impermeable slurry to the upper, left and right sides and the lower edge of the window wall, and press a 200mm wide waterproof and crack-resistant cloth into the polymer waterproof and impermeable slurry; set a 300mm long waterproof and crack-resistant cloth reinforcement layer in the four corner areas.

9. The method for waterproofing and repairing exterior windows according to claim 7, characterized in that, The coating thickness of the two-component interface agent is 0.5-1.0 mm; the coating thickness of the polymer waterproof slurry is 1.5-2.0 mm.

10. The method for waterproofing and repairing exterior windows according to claim 7, characterized in that, After filling and compacting the polymer sealant in the upper and lower grooves to form a polymer sealant layer, the process further includes: After the polymer sealant layer has cured, exterior wall paint is applied to the surface for decoration and repair.

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