Review of pipe lining in 2024? Advantages and disadvantages of pipe lining in 2024

The pipe lining technique offers an innovative solution to repair damaged pipes without requiring their full replacement. It involves inserting a flexible resin-coated liner inside existing pipes. This liner then hardens, creating a new resistant and waterproof coating. This allows for the refurbishment of wastewater, rainwater, or drinking water networks, avoiding major and costly work.

What benefits and trade-offs does pipe lining present from 2024? Is this method suitable for all situations? How much does pipe lining cost per linear meter?

This article aims to share our opinion on this revolutionary method and detail the foundations, phases, and specifics of pipe lining.

What is pipe lining? Definition and process

Definition of pipe lining

Pipe lining is a rehabilitation method that avoids the complete replacement of damaged pipes. It involves inserting a flexible resin-coated liner into the existing pipe. Once cured, this liner creates a new solid and waterproof conduit. This technique is ideal for restoring sewage systems, stormwater drainage, or drinking water distribution without requiring major or costly work.

Technical process of lining

The process is divided into several key steps:

• Detailed inspection of the pipes with a camera to locate damage and assess the condition of the pipeline.
• Intensive cleaning and preparation by high-pressure water jetting or biological methods to remove debris and ensure good adhesion of the liner.
• Installation of the resin liner inside the pipe, using inversion or pulling techniques, and expansion so that it perfectly fits the conduit.
• Resin polymerization, activated by heat or a catalyst, to solidify the liner.
• Coating quality control by camera and surface finishing if necessary.

Types of lining available in 2024

Various lining options will be available in 2024, adapted to different needs and constraints:

• Resin spray lining uses a robot to apply an epoxy resin to the interior of small pipes (40 to 200 mm in diameter) over short sections (1 to 15 m).
• Sleeve lining, or continuous lining, uses a fiberglass sleeve impregnated with polyester resin for larger diameter pipes (from 100 to 1200 mm) and over long distances (up to 300 m).
• Spray lining, or partial lining, involves the direct application of epoxy resin on damaged areas using a spray gun. This method is suitable for all pipe sizes and allows for very targeted repairs.

Advantages of pipe lining in 2024

Cost and time savings

The pipe lining technique offers significant savings in terms of costs and time compared to traditional repair methods. Without requiring digging or dismantling of conduits, it considerably reduces labor and material costs. Moreover, the implementation of lining is completed within a few hours, thus minimizing intervention periods.

Durable and environmentally friendly solutions

This method is a durable and eco-friendly solution. Pipe lining prevents corrosion, scale, leaks, and blockages, thereby increasing the longevity of pipes. By avoiding major excavation work, this technique also reduces environmental impact.

Advanced technologies and reliable results

Using cutting-edge technologies, pipe lining ensures reliable results. Thanks to the use of high-quality materials such as epoxy resin or fiberglass, the repair guarantees watertightness and durability. The use of video inspection during the process allows supervision of the operation and ensures the quality of the result.

Less disruption to daily life

This technique reduces inconveniences in daily life. The lining process avoids water outages and traffic detours, limiting disruptions for residents and users. Additionally, it reduces water noise in the pipes, thereby improving the acoustic comfort of homes.

Disadvantages and limitations of pipe lining in 2024

High initial cost and availability of experts

Pipe lining stands out due to its significant initial cost compared to traditional repair methods. The price of this process varies depending on the material used, the length of the pipe to be repaired, and the choice of professional.

This method can be costly, ranging between 100 and 300 euros per linear meter. It is therefore crucial to conduct a precise price comparison before selecting an expert.

Moreover, pipe lining requires specific expertise and specialized equipment, which limits its accessibility to certain specialists. Finding a competent and experienced professional can therefore prove difficult, leading to prolonged waiting times or complications in securing an appointment.

Technical limitations according to the condition of the pipes

The feasibility of pipe lining strongly depends on the condition of the pipes. Some major deteriorations or significant deformations may render this method inapplicable, sometimes requiring complete refurbishment or replacement.

Pipes with large holes or advanced corrosion, thus losing their structural strength, are not suitable for lining. This process is also constrained by the diameter and shape of the pipes, requiring a minimum diameter of 40 mm for inserting the resin liner.

Furthermore, performing lining on pipes with bends, narrowings, or branches can be complex, as these features may hinder the placement or proper expansion of the liner.

Possible complications during application

The application of pipe lining is not without risks and can cause complications if not performed correctly. Improper positioning of the liner, inaccurate resin dosing, or suboptimal curing can cause leaks, detachment, or cracks. It is therefore essential to consult a qualified specialist and conduct a video inspection control of the result.

The material used for lining, such as epoxy resin, can be toxic if mishandled, releasing harmful vapors or causing skin and eye irritation. Compliance with safety standards and the use of personal protective equipment are imperative during the lining application.

Conclusion

Pipe lining represents an innovative and efficient solution for repairing damaged pipes without requiring their replacement. This method offers several significant advantages, such as reducing costs and intervention time, high durability, exceptional reliability, and an environmentally friendly approach.

This technique adapts to various scenarios, depending on characteristics such as diameter, shape, and the general condition of the pipes. However, it also has disadvantages, including a significant initial investment, the scarcity of qualified specialists, certain application limits, and the risk of complications during the process.

To fully benefit from pipe lining in the renovation of your drainage systems, it is recommended to consult a certified and experienced expert. They will be able to guide you towards the solution best suited to your requirements and budget. 

We remain at your disposal to answer your questions and support you in your projects.