Unit type curtain wall out-of-roof water cut-off system
By combining waterproofing membrane, drainage channel and weather-resistant sealant in the design of unitized curtain wall roof outlets, two waterproof barriers are formed, solving the compatibility, durability and economy problems of unitized curtain wall roof outlet waterproofing systems, and achieving efficient and reliable waterproofing effect.
Patent Information
- Application Number
- CN202423094711.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing unitized curtain wall roof waterproofing systems suffer from problems such as poor compatibility, easy omission of sealant application, poor durability, difficulty in ensuring sealant application process, and poor economy, leading to frequent leaks, difficulty in repair, and affecting the reliability of curtain wall waterproofing.
The design employs a combination of waterproof membrane, drainage channels, and weather-resistant sealant to form two horizontally continuous waterproof barriers, including internal and external barriers, which drain rainwater through the drainage system to prevent leakage.
It improves the waterproof performance and durability of the curtain wall, simplifies the construction process, reduces workload and cost, and ensures the reliability and economy of the water-blocking effect.
Smart Images
Figure CN223608093U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a unit type curtain wall out-of-roof water cut-off system, which is applied to the waterproof design and installation of the unit type curtain wall out-of-roof in the field of building curtain walls. BACKGROUND
[0002] At present, building design generally designs curtain walls out-of-roof for shielding staircases, large equipment pipelines, sundries and the like on the roof, or designs curtain wall modeling out-of-roof for the need of aesthetic appearance of the facade top surface, and sometimes the curtain wall out-of-roof reaches two or more than three layers. The curtain wall out-of-roof has a larger load than the facade curtain wall, has a larger amount of rainwater, and has a much larger difficulty in horizontal plane waterproofing than facade waterproofing, and is more difficult to waterproof, and is prone to leakage, which puts forward a very high requirement on the waterproof design and waterproof reliability of the curtain wall out-of-roof. The curtain wall out-of-roof water cut-off system refers to a waterproof drainage structure system for cutting off rainwater at the part of the curtain wall extending out of the roof of the building, so as to prevent rainwater from entering the lower structural layer through the gap between the curtain wall and the waterproof roof and leaking into the room. Curtain wall out-of-roof design has become a common means for beautifying the effect of the curtain wall and shielding the equipment and sundries on the roof, and the waterproof water cut-off problem has become the most important problem in the waterproofing of the curtain wall.
[0003] At present, the traditional waterproofing method for the unit type curtain wall out-of-roof basically adopts the method of sealing all the joints and holes on the inner and outer surfaces of the unit type curtain wall out-of-roof with sealant, in addition to using the compression top waterproof plate to cover the gap between the back of the unit type curtain wall and the parapet of the building roof, but these methods have the following serious problems:
[0004] 1. Poor compatibility: The unit type curtain wall adopts various material components, such as connecting pieces, keels made of various materials such as steel and aluminum, surface materials made of various materials such as glass, metal plates, artificial plates, rubber strips, flexible pads, screws and bolts, and the assembly and connection of these material components may have joints or holes that need to be waterproofed. These material components cannot be well compatible with the selected sealant, and no construction unit has conducted a strict compatibility test on all types of components and the selected sealant, so there is a high possibility of leakage due to incompatibility.
[0005] 2. Easy to miss sealing: The unit type curtain wall out-of-roof has many joints and holes, such as unit cross insertion, male and female column insertion, and upper and lower horizontal insertion, and the amount of sealing is extremely large when the overhead layer is high. There are many details of sealing with sealant, and workers are prone to ignore and miss sealing during construction, resulting in missed sealing positions and allowing rainwater to enter through the missed sealing positions and flow into the room.
[0006] 3. Durability is not good: the out-of-roof curtain wall is located outdoors, with large load and large temperature deformation. The unit cross is inserted, the male and female columns are inserted, and the upper and lower horizontal joints are inserted. There are more joints and holes, and the gaps of the joints are very small. Therefore, the sealant is mostly a thin layer of glue on the surface. The thin glue is prone to cracking and peeling. In addition to the large wind load and large temperature deformation, the thin glue in the small joint gap will be cracked, resulting in the failure of the out-of-roof curtain wall waterproofing.
[0007] 4. It is not easy to ensure the sealing process: the unit cross is inserted, the male and female columns are inserted, and the upper and lower horizontal joints are inserted. There are more joints and holes, and the surface needs to be sealed. There are a lot of dust and oil that are not conducive to sealing and waterproofing. Workers on site are prone to ignore the sealing process and miss the cleaning process. In addition, the inner surface of many small joints cannot be cleaned. The sealing glue contact surface is not cleaned or cleaned, which greatly reduces the adhesion of the sealing glue. Therefore, many parts seem to be sealed with sealing glue, but they are not waterproof.
[0008] 5. Economic efficiency is not good: the unit cross is inserted, the male and female columns are inserted, and the upper and lower horizontal joints are inserted. There are more joints and holes, especially when the overhead layer is high. The amount of glue is very large, and the cost of materials, labor, and measures is very high, which is not good for economic efficiency.
[0009] Currently, the out-of-roof unit curtain wall using the traditional waterproofing scheme has a lot of leakage problems, and it is difficult to maintain, causing a lot of economic losses and great negative effects. The curtain wall industry urgently needs a technically advanced, simple and reliable, durable and economical out-of-roof unit curtain wall waterproofing system scheme to effectively solve the above problems and promote the healthy development of the curtain wall industry. SUMMARY
[0010] To solve a series of problems in the background art, greatly improve the overall waterproof performance of the unit curtain wall out of the roof, greatly simplify the operation process, reduce the workload, greatly improve the reliable durability of waterproof, completely solve the water breakage problem, the utility model provides a unit curtain wall out of the roof water breakage system, the system does not need to insert the unit cross, male and female column plug-in, upper and lower horizontal plug-in and other joints and holes of the unit curtain wall out of the roof unit, after the lower layer unit of the system curtain wall is installed, the front drain groove and the rear drain groove are placed on the left and right adjacent unit blocks on the horizontal part, the weatherproof sealant is applied around, the water-absorbing sponge is placed in the rear drain groove, and the male and female column plug-in joint is effectively blocked; the outer side of the waterproof plate is inserted into the rear end of the rear drain groove, the leakage water is guided into the rear drain groove, and is discharged outside through the drainage system of the upper horizontal of the lower layer unit; when the parapet wall body is high, the inner side of the waterproof plate is inserted into the groove of the wall body and the weatherproof sealant is applied on the upper side of the groove, when the parapet wall body is low, the inner side of the waterproof plate covers the inner side of the parapet wall and the weatherproof sealant is applied at the interface; after the upper layer unit is installed, the outer side of the pressure top plate is fixed on the lower horizontal or the middle horizontal of the upper layer unit by means of stainless steel screws, the inner side of the pressure top plate is fixed on the inner side of the parapet wall of the main body structure, and the weatherproof sealant is applied around the gap between the pressure top plate and the left and right columns of the upper layer unit and the panel of the upper layer unit, so that a large amount of external rainwater falling on the inner surface of the curtain wall is guided to the building roof. A complete internal waterproof water breakage barrier is formed by the installation and construction of the waterproof plate, the upper horizontal of the lower layer unit, the front drain groove, the rear drain groove and the weatherproof sealant, and another complete external waterproof barrier is formed by the installation and construction of the pressure top plate, the left column of the upper layer unit, the right column of the upper layer unit, the panel of the upper layer unit and the weatherproof sealant, and the two horizontal through waterproof barriers form two independent water breakage systems, so that the channel of rainwater seepage from the curtain wall structure layer downward is completely disconnected. The water breakage system has the characteristics of strong universality, simple and reliable construction process, convenient construction, small workload, superior waterproof performance, good durability, simple and easy quality control, economical cost and the like.
[0011] The utility model adopts the technical scheme: a unit formula curtain wall roof break water system, by lower unit upper cross, front drainage groove, rear drainage groove, drainage hole, water absorption sponge, waterproof board, shoot nail, parapet, coping panel, upper unit lower cross, upper unit left stand, upper unit right stand, upper unit panel, upper unit middle cross, stainless steel screw, weatherproof sealant assembly installation component, its characterized in that: the lower unit upper cross joint part of adjacent places front drainage groove, rear drainage groove, and periphery applies weatherproof sealant, and the rear part of rear drainage groove places water absorption sponge, and the outside of waterproof board inserts rear end of rear drainage groove, and the inside of waterproof board and parapet interface place applies weatherproof sealant, and the outside of coping panel is fixed on upper unit lower cross or upper unit middle cross with stainless steel screw, and the inside of coping panel is fixed on the inside of parapet, and the clearance between coping panel and upper unit left stand, upper unit right stand, upper unit panel periphery applies weatherproof sealant, and the installation construction of waterproof board, lower unit upper cross, front drainage groove, rear drainage groove and weatherproof sealant is formed with complete one internal waterproof break water barrier, and the installation construction of coping panel, upper unit left stand, upper unit right stand, upper unit panel and weatherproof sealant is formed with complete another external waterproof barrier, and the two horizontal through waterproof barriers are formed with independent two break water systems.
[0012] When the parapet is higher, horizontal notches are formed on the outer surface of the parapet at the joint with the waterproof board, the inner side of the waterproof board is inserted into the notches and continuous weatherproof sealant is applied on the upper side of the notches.
[0013] When the parapet is lower, the waterproof board covers the upper surface of the parapet, and continuous weatherproof sealant is applied at the interface between the inner side of the waterproof board and the inner surface of the parapet.
[0014] U-shaped gaps are formed at the joint of the coping panel and the upper unit left stand and the upper unit right stand, the periphery of the U-shaped gaps is provided with a folded edge, and a gap is left between the coping panel and the upper unit left stand and the upper unit right stand, and weatherproof sealant is applied around the gap.
[0015] A gap is left between the back of the coping panel and the upper unit panel, and weatherproof sealant is also applied around the gap.
[0016] The lower unit upper cross, the front drainage groove, the rear drainage groove, the waterproof board, the coping panel, the upper unit lower cross, the upper unit left stand, the upper unit right stand, and the upper unit middle cross are all made of aluminum alloy.
[0017] Technical features
[0018] 1. Safe and reliable: the curtain wall connection structure is safe and reliable, and the break water of the waterproof board and the coping panel does not change the original curtain wall connection structure and the calculation stress model, and the structure stress is safe and reliable.
[0019] 2. Strong waterproof performance: The waterproof plate, the upper horizontal of the lower unit, the front drainage groove, the rear drainage groove and the weather-resistant sealant are installed and constructed to form a complete internal waterproof and water cut-off barrier, the top panel, the left vertical column of the upper unit, the right vertical column of the upper unit, the upper unit panel and the weather-resistant sealant are installed and constructed to form a complete external waterproof barrier, and the two horizontal through waterproof barriers form two independent water cut-off systems, so that the waterproof performance is strong.
[0020] 3. Clear and reliable drainage path: A large amount of external rainwater falling on the surface of the upper unit plate of the water cut-off system is guided to the building roof through the top panel with a drainage slope; a small amount of rainwater flowing down the inner wall of the upper unit column is guided into the rear drainage groove of the upper horizontal of the lower unit through the waterproof plate with a drainage slope, and is guided to the outside through the unit plate drainage system, so that the overall drainage path is clear and reliable and does not miss any part.
[0021] 4. Good compatibility: All components at the weather-resistant sealant waterproof position of the water cut-off system are made of aluminum alloy material, and only the compatibility bonding test of a selected weather-resistant sealant and aluminum alloy needs to be done in advance, so that the durability of the bonding and sealing can be ensured.
[0022] 5. Simple and reliable process, good glue joint durability: The water cut-off system is provided with a certain size of glue joint which can adapt to the deformation of the weather-resistant sealant at the position where the weather-resistant sealant is applied, so that the glue joint is not easy to crack even under the condition of large load and large temperature difference deformation, the process is simple and reliable, the glue application position is easy to clean, and the waterproof durability of the weather-resistant sealant is greatly improved.
[0023] 6. Simple and fast construction, small workload and not easy to miss: The water cut-off system only needs to install a waterproof plate between the lower unit and the main structure at the out-of-roof position, guide the leakage water of the upper unit to the drainage system of the lower unit, and form two complete and through water cut-off together with the external top panel, so that the operation is simple and convenient, the glue sealing position is greatly reduced, the workload is greatly reduced, and it is direct and not easy to miss.
[0024] 7. Easy to control quality and convenient to inspect: After the complete water cut-off system of the lower unit is installed, the quality inspection is very direct, and the waterproof and water cut-off effect can be inspected by conducting a water test on the inner and outer surfaces of the upper unit, which is very direct and easy to control quality.
[0025] 8. Good economy: The water cut-off system only needs to complete two complete and through water cut-off at the out-of-roof position, the operation is simple and convenient, the workload is greatly reduced, the water cut-off workload of the overhead layer is also small even if the overhead layer is high, the material cost, labor cost and measure cost are greatly reduced, and the leakage maintenance cost in the later period is also greatly reduced. BRIEF DESCRIPTION OF DRAWINGS
[0026] An embodiment of the utility model will be further described below with reference to the drawings.
[0027] Figure 1 is the longitudinal section view of the unit curtain wall roof flashing system when the parapet is low.
[0028] Figure 2 is the horizontal section view of the waterproof board flashing of the unit curtain wall roof flashing system.
[0029] Figure 3 is the horizontal section view of the coping flashing of the unit curtain wall roof flashing system.
[0030] Figure 4 is the longitudinal section view of the unit curtain wall roof flashing system when the parapet is high.
[0031] Figure 1. Lower unit upper horizontal, 2. Front drain, 3. Rear drain, 4. Weatherproof sealant, 5. Water absorption sponge, 6. Waterproof board, 7. Shot pin, 8. Drainage hole, 9. Coping panel, 10. Stainless steel screw, 11. Upper unit lower horizontal, 12. Upper unit middle horizontal, 13. Upper unit left vertical column, 14. Upper unit right vertical column, 15. Upper unit panel, 16. Parapet. DETAILED DESCRIPTION
[0032] In Figure 1 , Figure 2 , Figure 3 , Figure 4 , after the lower unit is installed, the front drain 2 and the rear drain 3 are placed at the left and right adjacent lower unit upper horizontal 1, the weatherproof sealant 4 is applied around the periphery, the water absorption sponge 5 is placed in the rear drain 3, the outer side of the waterproof board 6 is inserted into the rear end of the rear drain 3 to form an equal pressure drainage system with the drainage hole 8 of the lower unit upper horizontal 1; when the parapet 16 wall is high, the inner side of the waterproof board 6 is inserted into the slot of the parapet 16 wall, and the weatherproof sealant 4 is applied on the upper side of the slot; when the parapet 16 wall is low, the inner side of the waterproof board 6 covers the inner side of the parapet 16 and is fixed by the shot pin 7, and the weatherproof sealant 4 is applied at the interface; then the upper unit is installed, the outer side of the coping panel 9 is fixed on the upper unit lower horizontal 11 or the upper unit middle horizontal 12 by the stainless steel screw 10, the inner side of the coping panel 9 covers the upper end of the parapet 16 and is fixed on the inner side of the parapet 16, and finally the weatherproof sealant 4 is applied around the gap between the coping panel 9 and the upper unit left vertical column 13, the upper unit right vertical column 14, and the upper unit panel 15.
[0033] In this way, the installation and implementation of the unit curtain wall roof flashing system are realized.
Claims
1. A unit curtain wall roof water break system, comprising a lower unit upper horizontal, a front drainage groove, a rear drainage groove, a drainage hole, a water absorption sponge, a waterproof board, a nail, a parapet, a coping panel, an upper unit lower horizontal, an upper unit left vertical column, an upper unit right vertical column, an upper unit panel, an upper unit middle horizontal, a stainless steel screw, and a weather-resistant sealant, characterized in that: The front and rear drainage grooves are placed on the adjacent lower unit upper transverse joint, weatherproof sealant is applied on the periphery, the rear drainage groove rear part is placed with water absorption sponge, the waterproof plate outside is inserted into the rear end of the rear drainage groove, weatherproof sealant is applied on the inner side of the waterproof plate and the parapet interface, the outer side of the coping panel is fixed on the upper layer unit lower transverse or upper layer unit middle transverse by stainless steel screws, the inner side of the coping panel is fixed on the inner side of the parapet, weatherproof sealant is applied on the gap between the coping panel and the upper layer unit left vertical column, upper layer unit right vertical column and upper layer unit panel, the waterproof plate, lower unit upper transverse, front and rear drainage grooves and weatherproof sealant are installed and constructed to form a complete internal waterproof water barrier, the coping panel, upper layer unit left vertical column, upper layer unit right vertical column, upper layer unit panel and weatherproof sealant are installed and constructed to form a complete external waterproof barrier, and the two horizontal waterproof barriers form two independent water barriers. 2. The unitized curtain wall and roof flashing drainage system of claim 1, wherein: When the parapet is higher, a horizontal notch is formed on the outer surface of the parapet at the interface with the waterproof plate, the inner side of the waterproof plate is inserted into the notch and continuous weatherproof sealant is applied on the upper side of the notch.
3. The unitized curtain wall and roof flashing system of claim 1, wherein: When the parapet is lower, the waterproof plate covers the upper surface of the parapet, and continuous weatherproof sealant is applied on the interface between the inner side of the waterproof plate and the inner surface of the parapet.
4. The unitized curtain wall and roof flashing drainage system of claim 1, wherein: The coping panel and the upper layer unit left vertical column and upper layer unit right vertical column interface are provided with U-shaped gaps, the periphery of the U-shaped gap is provided with a folded edge, and a gap is left between the upper layer unit left vertical column and upper layer unit right vertical column, and weatherproof sealant is applied on the periphery of the gap.
5. The unitized curtain wall and roof flashing system of claim 1, wherein: A gap is left between the coping panel and the back of the upper layer unit panel, and weatherproof sealant is also applied on the periphery of the gap.
6. The unitized curtain wall and roof flashing system of claim 1, wherein: The lower unit upper transverse, front and rear drainage grooves, waterproof plate, coping panel, upper layer unit lower transverse, upper layer unit left vertical column, upper layer unit right vertical column and upper layer unit middle transverse are all made of aluminum alloy.