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Do you really understand the construction method of polyvinyl chloride (PVC) waterproof rolls?

Do you really understand the construction method of polyvinyl chloride (PVC) waterproof rolls?
(1) Construction method for large surface coiled materials:
The large-scale construction methods for PVC waterproof rolls include: ① mechanical fixation method; ② Bonding method; ③ Empty paving (capping) method.
① Mechanical fixation method:
Mechanical fixation method is a construction method that uses specialized fixing components to fix the coil on the base (which can be divided into point fixation and line fixation). Commonly used for some steel roofs, light steel roofs, etc.
② Bonding method:
The bonding method is not difficult to understand. During construction, adhesive is applied to the coil and substrate, and the coil is fixed to the substrate through adhesive bonding. This construction method is commonly used for waterproofing construction of some concrete structures. The bonding method can be divided into full bonding method, strip bonding method, and point bonding method, which involves applying adhesive to the local strip and point areas to bond the coil.
③ Empty laying (covering) method:
The hollow drum paving method is a method that does not apply adhesive on the entire large surface, only adheres and fixes the edges of the construction base within a certain range (usually 800mm), and covers with pressure paving materials. It is commonly used in some concrete structure roofs and other parts.
(2) Lap joint hot air welding construction method:
The treatment method for lap edges of coils is hot air welding.
This welding method is non-contact welding, which uses a welding machine to heat hot air with high heat and a certain wind pressure intensity, heat the upper and lower coils on the overlap surface to melt and flip, and then use tools such as rollers to press and fuse to achieve the welding result.
Commonly used hot air welding machines include but are not limited to: manual hot air welding guns, automatic hot air welding machines, etc.
Hot air welding can be divided into two types based on the number of welds: single seam welding and double seam welding.
In the construction of some civil and industrial engineering such as single-layer roofs and underground structure, the single seam welding method is often used. In municipal and road bridge construction projects such as tunnels, artificial lakes, and landfills, double seam welding methods are often used.


Waterproof material variety, which are the main raw materials?

Waterproof material is the building envelope to prevent the infiltration of rain, snow and groundwater; to prevent the erosion of moisture, steam and other harmful gases and liquids in the air; to separate the structure to prevent the seepage of water supply and drainage over.

Do you know what are the characteristics of non-curing waterproof coating?

Non-curing waterproofing coating is not need to heat to a certain temperature on the construction of the material. There are many types of such materials, such as: polyurethane waterproofing roll-roofing and non-vulcanized rubber-based polymer emulsions belong to such products; in addition, there are acrylic polymer cement mortar and modified epoxy resin cement also belongs to this category.

Introduction to the construction steps of liquid coil

Liquid membrane is a highly elastic rubber waterproofing material, with water instead of organic solvents, green and environmentally friendly. After painting and coil effect is the same, so compared with ordinary coil construction is very simple. And not subject to any complex grass-roots shape restrictions, can be made into a continuous overall highly elastic seamless waterproof membrane, is an ideal environmentally friendly waterproof coating.

Do you need to prepare anything before the construction of roofing membrane waterproofing?

Before the construction of the roofing project, the construction unit should organize technical management personnel to review the roofing project drawings, master the construction drawings of the detailed structure and the relevant technical requirements and the actual situation of the project to prepare the construction plan or technical measures of the roofing project. This avoids leaving defects after construction, resulting in rework, while the project is planned according to the construction organization to prevent work omissions, mistakes, reversals affect the quality of the project.