JUAL
Analysis of single-layer flexible roof drainage scheme of JUAL think tank | TPO
JUAL
（JUAL Roofing Technology（苏州）有限公司，江苏苏州，215000）
摘 要：With the continuous progress and development of society, more and more commercial complexes and industrial plants have been erected, which will involve the drainage of large-scale commercial roofing. On the roof of large commercial buildings and industrial plants, there are often more equipment bases. To ensure smooth drainage of equipment bases in horizontal and horizontal directions is a difficult and key point to ensure the smooth implementation of roof waterproofing projects.
关键词：TPO single-ply flexible roof drainage, gravity drainage system
Roof drainage is usually divided into gravity drainage and siphon drainage.
Gravity drainage system
The accumulated rainwater uses the slope of the roof structure and its own gravity to automatically flow into the pipes, thereby draining the water out.
Application scenario: The roof area is less than 5000m², and the rainwater riser has a more suitable space to set, the use of gravity drainage system is more practical and economic.
Practical application: residential, small industrial plant
Siphon drainage system
At the beginning of the rainfall, the principle of gravity is used for drainage. When the rainfall increases and the water level on the roof reaches a certain height, the rainwater tank automatically isolates the air, resulting in a siphon, and the system is transformed into an efficient drainage system that sucks the rainwater down.
Application scenario: The roof area is more than 5000m², and the number of rainwater risers is required to be as small as possible. The rainfall in the rainy season of the project is concentrated, and the rainfall is large and the rainwater is required to be discharged in time. In this case, the siphon roof drainage system is more appropriate.
Practical application: large shopping malls, airports, large industrial plants, etc
● In the early or late rain water is less, can not form the siphon effect, siphon drainage pipe can not reach the full flow pressure state, then the drainage effect is the same as the ordinary gravity drainage effect.
● Traditional siphon system accessories rain hopper and roof waterproof seal will be due to climate change, construction non-standard and long-term tensile aging coil risk of failure.
In the actual construction process of flexible roof, the use of siphon drainage or gravity drainage system should be analyzed according to the specific situation.
The roof drainage scheme according to local conditions is the basis to ensure the drainage effect, and the excellent quality waterproof products are the best guarantee for the long-term effective waterproof system. JUAL focuses on the exploration of the technical development direction of integrated roofing prefabricated submersible products, and continues to provide high-quality single-layer roof accessories.
Product advantage
★With gravity water function, the maximum drainage capacity of up to 19.1L/S, to ensure the best drainage effect
★Easy and fast installation, high degree of pre-installation, strong applicability
★Hot air welding of metal base flange with customer waterproof coil, welding strength up to 1.275kN /50mm (TPO), 8.3 times the stripping strength of waterproof coil joint (GB 27789-2011)
★100% welded with the original roof TPO/PVC waterproof coil, no additional sealing measures
★Single-ply roof waterproof coil without damage installation, waterproof performance is safe and efficient
In view of the characteristics of flexible roof and the problems existing in design, installation and maintenance, JUAL has developed a number of single-layer roof integrated prefabricated water drain products to solve technical problems and effectively solve the problems in the design of single-layer roof drainage schemes.
