Many of us have heard of such a thing as waterproofing. Often it can be found at the mention of construction. What is pipe waterproofing? It represents the protection of the pipeline from the effects of water. Today, there are various options for both the material and purpose of communications. In each of them, to increase the duration of operation, it is necessary to select suitable waterproofing components. The choice in this case depends on many factors.
Where is it used?
In practical use, all pipelines must be insulated. At the same time, pipe waterproofing is used for the following types of systems:
- Heating.
- Ventilation.
- Conditioning.
- Water supply.
- Sewerage.
- Water disposal.
- Smoke discharge.
Types of waterproofing materials for pipes
There are many of them. Among the main species, the following can be distinguished:
- Shrink tape.
- PVC tape.
- Rubber web.
- Isol.
- Waterproofing mastic.
Heat shrink tape
This material is presented in the form of a tape from a film. What is a pipe waterproofing device? A hot-melt layer is applied to it, which improves the adhesive properties. Most often, this design is used to protect pipe joints. The tape prevents corrosion that may occur during welding. It is also used to repair polyethylene pipes. But here there is one condition that states that it is impossible to perform insulation of the compounds, which are exposed to high temperatures in a constant mode. A disadvantage of the tape is considered high sensitivity to ultraviolet radiation. Therefore, it cannot be stored on the sunny side. Among the advantages can be noted the preservation of properties at various temperature extremes, being in the composition of environmentally friendly raw materials, water resistance and ductility.
PVC tape
It is made of polyvinyl chloride, and on the one hand the adhesive is applied, which makes installation easier.
The purpose is to protect pipes from corrosion, which very often appears during the installation of gas and pipelines. But recently, such pipe waterproofing is increasingly found in the repair of various structures. Material is produced in rolls that are wound on a bobbin. If you break the integrity of the package, then moisture can get there, which will adversely affect the properties.
Rubber web
It is usually used in sanitary facilities, underground, as well as for insulation of foundations and basements. It repels water well and can be used to isolate pipe joints that transport oil. Among the advantages it is worth noting elasticity, durability, strength, non-toxicity, resistance to ultraviolet radiation, the possibility of use at various temperatures. You can store rolls only in conditions where there is no atmospheric precipitation and the surface does not heat above 50 degrees.
Isol
The material is waterproof and durable, and finds its application in waterproofing heating networks. It is produced in rolls and has several modifications. All of them vary in composition. The material is primarily intended to eliminate corrosion of metal surfaces. Among the shortcomings, the most basic can be distinguished - this is low resistance to aggressive environments. Among the advantages note good adhesion, work at high temperatures, waterproofing characteristics, elasticity and long service life.
Waterproofing mastic
Such a material is a mixture of tar and bitumen, which has additives of mineral fillers. Mastic is quite easy to use and is applied with a brush or roller. After hardening, it is a seamless coating that has been used to insulate pipes for a long time. To improve the properties, it is usually applied in several layers, each of which covers the previous one only after complete drying.
Methods of applying waterproofing to the surface of the water supply
Modern methods involve the use of plastic components and operational technology for their application.
In most cases, such materials are soft substances that have good ductility, are waterproof and resist the aggressive effects of liquids. By the type of application, three main methods can be distinguished:
- Okay. Waterproofing of steel pipes is done by gluing surfaces with material.
- Smear. With this method, bituminous coating is applied in hot or cold form.
- Smear-okleechnaya. This is a combined method. It includes wrapping with mesh material and coating with mastic.
Why can not leave the chimney without waterproofing?
A chimney that removes all unnecessary combustion products is usually heated during the process. Moisture, which can get on it, evaporates, and at the same time creates pressure that interferes with traction. This process can cause the chimney to malfunction.
The second reason is the appearance of condensation in the pipe itself. It can occur due to temperature differences, accumulates on the walls and flows down, while again creating pressure.
To prevent such phenomena, competent waterproofing of pipes is provided today. This procedure includes a set of measures that prevent the penetration of moisture. After all, only protected chimneys will provide you with safety when using heating devices, increase the flow of heat and will have a wonderful appearance.
The nuances of waterproofing processes
When you equip a chimney, the waterproofing of a metal pipe is considered an important point. The safety of all heating devices depends on how you make it right. When installing, you need to consider several key points:
- The distance between the roof and the rafters must always be observed. For a roof made of combustible components, it is from 15 to 30 cm, and for non-combustible - from 10 to 25 cm.
- Roofing pie, which consists of hydro, vapor barrier and insulation, should not be broken. If the opposite happens, then moisture will get inside.
- The gap must be made in the form of a box that will separate the roof from the pipe. It is made of a transverse beam and rafters. The distance between the pipe and the duct should be 15 cm. The space inside is filled with thermal insulation, and the vapor barrier is fixed with a special frame. The waterproofing of the pipe on the roof at the same time is pressed by the crate. All joints are sealed with special tapes.
Methodology for the protection of the chimney from moisture
The chimney will be waterproofed in several stages:
- The waterproofing layer is laid on the drainage gutter, which will remove moisture.
- An apron is mounted inside, which will provide adjacency sealing.
- Next, the tie is laid. This is a structure that is cut out of waterproofing material and laid under the lower edge of the apron. It reaches the edge of the roof and is displayed between the lower incisors of the coating. A rim is usually left at the edges, which directs the water down the ramp and prevents it from spreading over the roof.
- The roofing is laid around the pipe.
- A decorative apron is arranged over the roof. If you follow all the processes correctly, then you will get a beautiful design that will serve you for a long time.