Roof waterproof system with exhaust function
By setting up a gridded exhaust system in the waterproof system and using exhaust pipes to promptly remove the airflow caused by temperature differences, the problem of damage to the waterproof system due to the inability to remove gas is solved, and a balance is achieved between the long-term maintenance of the waterproof system and the thermal insulation effect.
Patent Information
- Application Number
- CN202422874960.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-25
AI Technical Summary
During long-term use, the existing waterproof system cannot effectively remove the gas caused by temperature differences, which damages the waterproof structure.
A grid exhaust system is designed to divide the waterproof system into multiple grids. An exhaust pipe is set at the corner of each grid to form an effective steam flow and exhaust channel. The airflow in a small area is promptly removed through the exhaust pipe to avoid damage to the waterproof system.
It achieves air pressure balance between the insulation layer and the waterproof layer, protects the waterproof system from damage, and improves the long-term maintenance effect of the waterproof system.
Smart Images
Figure CN223423511U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of roof waterproofing, and in particular relates to a roof waterproofing system with an exhaust function. Background Art
[0002] The third engineering company of our company has undertaken the sewage treatment project of Shandong Yulong Petrochemical Industrial Park Development Co., Ltd. The project construction works include the roof waterproofing construction of 16 buildings, including the comprehensive office building and central control room (comprehensive control building), 35kV substation, 10kV substation, blower plant, high salt plant, sludge drying plant, double membrane plant, on-site cabinet room, etc.; Zhanjiang AA project control building and substation roof waterproofing construction; However, the existing waterproofing construction has taken into account the waterproofing needs, and has not taken into account the exhaust phenomenon caused by the long-term use of the waterproof layer. As a result, after a long period of use, the gas inside the waterproofing system caused by the temperature difference between indoor and outdoor cannot be eliminated for a long time, thereby causing damage to the waterproofing structure. Summary of the Invention
[0003] The purpose of the utility model is to provide a gridded exhaust system, which divides the existing waterproof system into multiple grids, and an exhaust pipe is set at the corner of each grid for exhaust. It can not only take into account the thermal insulation effect and ventilation effect of the thermal insulation layer, but also balance the thermal insulation and ventilation balancing layer formed between the lower end vapor barrier layer of the thermal insulation layer and the upper end waterproof layer. The grid ventilation of the fifth layer forms an effective steam flow and exhaust channel, forming a steam flow and balanced air pressure, which effectively protects the upper and lower waterproof layers and the vapor barrier layer from damage.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A roof waterproofing system with an exhaust function comprises a building roof structure layer, a non-curing rubber asphalt waterproof coating layer, an asphalt waterproofing membrane vapor barrier layer, a glass plate thermal insulation layer, a first C30 fine stone concrete leveling layer, a modified asphalt waterproofing membrane waterproofing layer, a modified asphalt waterproofing membrane additional waterproofing layer, a polyester non-woven fabric isolation layer and a second C30 fine stone concrete leveling layer, which are laid in sequence from bottom to top. The system also comprises a plurality of exhaust pipes inserted in the glass plate thermal insulation layer, each exhaust pipe being located at a top corner of a 6m*6m square and arranged in a grid form on the entire waterproofing system. During construction, a steel mesh is first laid on the glass plate thermal insulation layer, and then the entire thermal insulation layer is divided into a plurality of 6m*6m grid units, and the grid units are divided by grid lines. Exhaust pipes are arranged at the corners of the mesh hanging lines, and then the exhaust pipes are fixed and other waterproof layers are laid in sequence. This arrangement can also divide the exhaust of the waterproofing system into units, and the airflow generated by the temperature difference in a small range can be promptly discharged through the exhaust pipes to avoid causing serious damage to the waterproofing system.
[0006] Furthermore, the exhaust pipe includes a straight pipe portion and a curved pipe portion, which are integrally formed. The bottom of the straight pipe portion is inserted into the glass plate insulation layer and extends to the top of the asphalt waterproof membrane vapor barrier layer. A steel plate ring is also sleeved on the outside of the straight pipe portion of the exhaust pipe. The steel plate ring is tied and connected to the steel mesh at the bottom of the first C30 fine stone concrete leveling layer and then fixed and limited by the poured C30 fine stone concrete. The outside of the exhaust pipe bend is bonded to the modified asphalt waterproof membrane waterproof layer and the modified asphalt waterproof membrane additional waterproof layer polyester non-woven fabric isolation layer in turn, and then the top is fixed and closed by a metal hoop. Sealant is also provided between the metal hoop and the outer wall of the bend. Exhaust holes are evenly distributed on the pipe wall of the exhaust pipe below the modified asphalt waterproof membrane waterproof layer.
[0007] Furthermore, an exhaust duct is formed between the first C30 fine stone concrete leveling layer, the steel plate ring and the modified asphalt waterproof membrane waterproof layer, and the exhaust duct is connected to the exhaust hole.
[0008] Furthermore, the building roof structure layer is a concrete casting layer, the thickness of the non-curing rubber asphalt waterproof coating is 2.5 mm, the asphalt waterproof membrane vapor barrier layer is 3 mm thick APP modified asphalt, the glass plate insulation layer is 50 mm thick, the first C30 fine stone concrete leveling layer and the second C30 fine stone concrete leveling layer are both 40 mm, the thickness of the modified asphalt waterproof membrane waterproof layer and the modified asphalt waterproof membrane additional waterproof layer are both 3 mm, and a polyester non-woven fabric isolation layer.
[0009] Furthermore, a non-curing rubber asphalt waterproof coating layer and a 1mm thick self-adhesive layer are sequentially provided on the top between the exhaust pipe grid connection lines.
[0010] During construction, taking the roof's design area of 65.7m long and 40m wide as an example, 21 longitudinal and 13 transverse lines were arranged to form a crisscross grid of 273 3m x 3m squares, creating 77 6m x 6m steam exhaust points, forming a grid-like exhaust system. These 77 6m x 6m steam exhaust points secure the exhaust pipe, which is secured by a 50mm φ hot-dip galvanized steel pipe and a 52mm inner diameter, 150mm outer diameter ring plate. The ring plate not only secures the pipe but also maintains its vertical position. The exhaust pipe consists of a 180-degree semicircular elbow and a straight pipe. The lower end of the straight pipe is buried within the insulation and waterproofing layers, with 10mm φ exhaust holes evenly distributed around the pipe at 94mm intervals. The ring plates are welded together to form the exhaust pipe. Each pipe is fabricated on-site. The 180-degree semicircular elbow is composed of two welded 90° elbows with a bend radius of 1.5DN. The waterproof layer perpendicular to the exhaust pipe wraps the upper straight pipe of the exhaust pipe, the sixth layer is attached to the exhaust pipe, and the seventh layer is wrapped around the outside of the sixth layer. After the seventh layer is attached to the upper edge of the exhaust pipe, it is wrapped with a metal hoop and sealed with sealant. After the outer protective layer is completed, non-curing rubber asphalt waterproof coating + 1mm thick self-adhesive stickers are constructed along the grid line.
[0011] The exhaust pipe specifications and shape at each exhaust point, the installation and fixing ring plate, the exhaust hole placement at the lower end of the exhaust pipe, the location of the ring plate in the exhaust passage, the height of the exhaust pipe above the roof waterproofing, the connection method between the exhaust pipe and the upper waterproofing layer, the sealing requirements, and the self-adhesive protection of the outer protective layer were determined. Through the design of the construction layers, combined with the installation and fixing of 273 3m*3m exhaust grids and 77 6m*6m exhaust devices, a grid-based exhaust system for the entire roof waterproofing process was formed. This system balanced the exhaust passage between the insulation layer, the upper waterproofing layer, and the lower vapor barrier layer. Combined with the 77 grid exhaust points, it effectively ensured steam ventilation within the waterproofing and insulation layer, balancing the system's pressure release and natural breathing. This ensured high-quality waterproofing results, achieved a one-time waterproofing application, and maintained the long-term safety of the waterproofing system, ensuring long-term stability and safety for the roof waterproofing construction of the building project.
[0012] The advantages of this utility model are as follows: This application incorporates a nine-layer roof waterproofing system for construction, with the success of the system resting on a gridded exhaust system. This system achieves balanced insulation and ventilation, creating a balanced insulation and ventilation layer between the lower vapor barrier and the upper waterproof layer. The fifth layer's gridded ventilation creates an effective steam flow and exhaust channel. A grid-mounted annular plate for the exhaust pipe is used to secure the pipe perpendicular to the roof. φ10mm exhaust holes are evenly distributed around the upper and lower pipes on the annular plate. The holes are located between the lower vapor barrier and the upper waterproof layer. This layer, approximately 50+40+4=94mm thick, creates a steam flow layer that balances air pressure and effectively protects the upper and lower waterproof layers and the vapor barrier from damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the exhaust point arrangement structure of the exhaust pipe in the utility model.
[0014] Figure 2 It is a schematic diagram of the connection structure between the exhaust pipe and the waterproof system in the utility model. DETAILED DESCRIPTION
[0015] like Figure 1-2As shown, a roof waterproofing system with exhaust function includes, from bottom to top, a building roof structure layer 1, a non-curing rubber asphalt waterproof coating layer 2, an asphalt waterproof membrane vapor barrier layer 3, a glass plate insulation layer 4, a first C30 fine stone concrete leveling layer 5, a modified asphalt waterproof membrane waterproof layer 6, a modified asphalt waterproof membrane additional waterproof layer 7, a polyester non-woven fabric isolation layer 8, and a second C30 fine stone concrete leveling layer 9, and also includes a plurality of exhaust pipes 10 inserted in the glass plate insulation layer, each exhaust pipe is located at a 6m*6 The top corners of the square of m are arranged in a grid form on the entire waterproof system. During construction, a steel mesh 15 is first laid on the glass plate insulation layer, and then the entire insulation layer is divided into multiple 6m*6m grid units and the grid units are divided by grid lines. An exhaust pipe is set at the corner of the mesh hanging line, and then the exhaust pipe is fixed and other waterproof layers are laid in sequence. This arrangement can also divide the exhaust of the waterproof system into units, and the airflow generated by the temperature difference in a small range can be promptly discharged through the exhaust pipe to avoid causing serious damage to the waterproof system. The exhaust pipe includes a straight pipe portion and a curved pipe portion, which are integrally formed. The bottom of the straight pipe portion is inserted into the glass plate insulation layer and extends to the top of the asphalt waterproof membrane vapor barrier layer. A steel plate ring 11 is also mounted on the outside of the exhaust pipe straight pipe portion. The steel plate ring is tied to the steel mesh at the bottom of the first C30 fine stone concrete leveling layer and then fixed in place by the poured C30 fine stone concrete. The exterior of the exhaust pipe curved pipe is sequentially bonded to the modified asphalt waterproof membrane waterproof layer and the modified asphalt waterproof membrane additional waterproof layer polyester non-woven fabric isolation layer, and then fixed and sealed at the top by a metal hoop 13. Sealant 14 is also provided between the metal hoop and the outer wall of the curved pipe. Exhaust holes are uniformly distributed on the pipe wall below the modified asphalt waterproof membrane waterproof layer. An exhaust duct 12 is formed between the first C30 fine stone concrete leveling layer, the steel plate ring, and the modified asphalt waterproof membrane waterproof layer, and the exhaust duct is connected to the exhaust holes. A non-curing rubber asphalt waterproof coating layer and a 1mm thick self-adhesive layer are also sequentially provided on the top between the grid connection lines of the exhaust pipe.
[0016] The specific construction is as follows:
[0017] The first floor roof structure layer uses a one-time precise leveling construction technology for pouring sloped plain concrete. The one-time precise leveling technology using ∠30*30*3mm +M10*100mm bolts is used to achieve natural leveling and slope in the structure layer.
[0018] Second layer: 2.5mm non-curing rubber asphalt waterproof coating is applied, with the perimeter raised at least 250mm above the roof surface;
[0019] The third layer: 3mm thick APP modified asphalt waterproof membrane vapor barrier layer, with the perimeter raised at least 250mm above the roof surface;
[0020] Fourth layer: 50mm foam glass board insulation layer (thermal conductivity K<0.050W / mK);
[0021] The fifth layer: 40mm thick C30 fine stone concrete leveling layer, equipped with φ6*100 bidirectional steel mesh. When constructing the cover layer, first locate the exhaust pipe according to the design drawings, insert the exhaust pipe into the insulation layer, lay the steel mesh, divide the steel mesh area and pour concrete to fix it on the roof to form a grid-type exhaust, and form a complete waterproof and insulation system project with the upper and lower layers.
[0022] The sixth layer: 3mm thick APP modified asphalt waterproof membrane waterproof layer, with the perimeter raised at least 250mm above the roof surface.
[0023] The seventh layer: 3mm thick APP modified asphalt waterproof membrane additional waterproof layer, the perimeter is raised at least 250mm above the roof surface.
[0024] The eighth layer: 200-400g / m2 polyester non-woven fabric isolation layer, mainly used for the upper steel mesh and concrete layer to effectively protect the seventh and sixth waterproof layers.
[0025] Ninth layer: 40mm thick C30 fine stone concrete leveling layer, equipped with φ4*100 bidirectional steel mesh, constructed in a grid manner, and topped with non-curing rubber asphalt waterproof coating + waterproof protection.
[0026] This application incorporates the construction of a nine-layer roof waterproofing system, encompassing a total of nine building structural layers. The success of this roof waterproofing system hinges on the design of a gridded steam exhaust system. This system achieves balanced insulation and ventilation across the insulation layer, creating a balanced insulation and ventilation layer between the lower vapor barrier and the upper waterproof layer. The fifth layer's gridded ventilation creates an effective steam flow and exhaust channel. A grid-mounted annular plate secures the steam exhaust pipe, aligning it perpendicular to the roof. φ10mm steam exhaust holes are uniformly distributed around the upper and lower steam exhaust pipes on the annular plate, located between the lower vapor barrier and the upper waterproof layer. This layer, approximately 50+40+4=94mm thick, creates a steam flow layer, balancing air pressure and effectively protecting the upper and lower waterproof layers and the vapor barrier from damage.
Claims
1. A roof waterproofing system with exhaust function, characterized by: It includes a building roof structure layer, a non-curing rubber asphalt waterproof coating layer, an asphalt waterproof membrane vapor barrier layer, a glass panel insulation layer, a first C30 fine stone concrete leveling layer, a modified asphalt waterproof membrane waterproof layer, a modified asphalt waterproof membrane additional waterproof layer, a polyester non-woven fabric isolation layer and a second C30 fine stone concrete leveling layer, which are laid in sequence from bottom to top. It also includes multiple exhaust pipes inserted in the glass panel insulation layer, and each exhaust pipe is located at the top corner of a 6m*6m square and arranged in a grid form on the entire waterproof system.
2. The roof waterproofing system with exhaust function according to claim 1, characterized in that: The exhaust pipe includes a straight pipe portion and a curved pipe portion, which are integrally formed. The bottom of the straight pipe portion is inserted into the glass plate insulation layer and extends to the top of the asphalt waterproof membrane vapor barrier layer. A steel plate ring is also sleeved on the outside of the straight pipe portion of the exhaust pipe. The steel plate ring is tied and connected to the steel mesh at the bottom of the first C30 fine stone concrete leveling layer and then fixed and limited by the poured C30 fine stone concrete. The outside of the exhaust pipe curved pipe is successively bonded to the modified asphalt waterproof membrane waterproof layer and the modified asphalt waterproof membrane additional waterproof layer polyester non-woven fabric isolation layer, and then the top is fixed and closed by a metal hoop. Sealant is also provided between the metal hoop and the outer wall of the curved pipe. Exhaust holes are evenly distributed on the pipe wall of the exhaust pipe below the modified asphalt waterproof membrane waterproof layer.
3. The roof waterproofing system with exhaust function according to claim 1 or 2, characterized in that: An exhaust duct is formed between the first C30 fine stone concrete leveling layer, the steel plate ring and the modified asphalt waterproof membrane waterproof layer, and the exhaust duct is communicated with the exhaust hole.
4. The roof waterproofing system with exhaust function according to claim 3, characterized in that: The building roof structure layer is a concrete casting layer, the thickness of the non-curing rubber asphalt waterproof coating is 2.5mm, the asphalt waterproof membrane vapor barrier layer is 3mm thick APP modified asphalt, the glass plate insulation layer is 50mm thick, the first C30 fine stone concrete leveling layer and the second C30 fine stone concrete leveling layer are both 40mm, the thickness of the modified asphalt waterproof membrane waterproof layer and the modified asphalt waterproof membrane additional waterproof layer are both 3mm, and a polyester non-woven fabric isolation layer.
5. The roof waterproofing system with exhaust function according to claim 4, characterized in that: A non-curing rubber asphalt waterproof coating layer and a 1mm thick self-adhesive tape layer are sequentially provided on the top between the exhaust pipe grid connection lines.