“Kesson” is a word that has a French origin, and in translation means “drawer”. In the article such a term will be denoted by a special waterproof design, which is mounted in the conditions of wet soils in the garage or other economic buildings.
What it is?
Before finding out what the caissons are and how they are correctly installed, it is advisable to fully figure out that they represent themselves.
Kesson is a special waterproof chamber, which is usually mounted in soil conditions, constantly or periodically saturated with water. Inside the garage, the specified design is often done as a basement where people store various product reserves. In addition, the caisson in the garage can perform the function of the observation pit. The design is metallic, reinforced concrete or plastic. Cases directly from the main chamber, which is in most cases the shape of a cube or cylinder with a neck, as well as high-quality waterproofing.
If you compare the garage caisson with traditional basement structures, closed bricks, then you can notice many advantages of the first. The option in question is more reliable because absolutely sealed. Thanks to this, all its contents will always remain safe and preservation, even if there is a problem of flooding.
So that the tightness has always been preserved at the proper level, the capacity must be supplemented with high-quality waterproofing and anti-corrosion coating.
High quality caisson in a garage building, Be sure to remember that his whole design will be directly in the thickness of the Earth. This suggests that the pressure from the soil on it will be quite serious, especially if the ground in the site is very wet. When freezing the layers of the soil will expand, because of which the load will increase. For this reason, it is important to ensure that the walls of the hermetic chamber in the garage are most reliable as possible, and there was also no risk of squeezing capacity from the bottom up.
Only under the observance of these conditions can be relying on the fact that the caisson in the garage construction will be really useful and wear-resistant device capable of listening for a long time.
Description of species
Garage caissons are divided into several subspecies. Each of them has its own performance and installation features that need to be taken into account before switching to independent mounting work.
Everywhere is popular Concrete caissons for garage premises. They are made from ZBB rings. Capacities made from these components, are much more expensive than analogues from other materials. The main disadvantage of concrete rings is to their very large mass, so it has to hire a special equipment to work with them, which leads to additional costs. Caissons of this type can hardly hydroize.
But the advantage of them is weighty – they are not corrosion.
Metal caissons also require good waterproofing. They will need to be treated with high-quality anti-corrosion composition, which will periodically update. The composition against corrosion will need to apply with the external and inside of the design. Neglect these events can not. Metallic option is a box of steel 5 or 6 mm thick. Condensate here will be removed in a natural way by ventilation channels.
The cost of the tanks under consideration depends on the dimensions and applied coatings. They are practical and reliable, but without additional protective processing cannot be left.
Caisson for the garage can be made not only of concrete rings or iron, but also plastic. Plastic design is usually performed from durable material having a thickness of up to 20 cm. Plastic is not subjected to rust formation, so it is capable of listening longer than metal products. So that the pressure from the soil does not crumple the plastic container, the sand layer with a thickness of 200 mm pour over its perimeter.
However, this option is not suitable for areas with strong frosts.
How to make it yourself?
The caisson of any modification can be equipped in the garage on their own forces. The main thing is to stock with the necessary materials and tools. To build a reliable design, it is enough to follow the step-by-step instructions.
First, the preparatory works are spoiled, which can not be neglected with independent mounting of the caisson in the garage.
- In all cases digging pit. Determining its dimensions, it is necessary to consider the dimensions of both the caisson itself and additional external devices: thermal insulation, waterproofing, protective sand layer.
- To make out the outdoor marking of the future pit, you can go to earthworks. Speed pit, it is recommended to immediately lay the necessary trench, along which the water pipes will be laid if they are connected to central systems.
The next stage of work is in waterproofing. Since the design will lay asleep at the point below the soil line, it will definitely need to be well protected from the negative impact of groundwater.
There are several ways to external waterproofing, namely:
- by rolled materials;
- Using processing with special hydrophobic components;
- By cementing.
The use of coating in rolls is not the easiest, because first it will be necessary to brand all the surfaces of the base. Do this will have to be in several layers.
All irregularities should be eliminated by means of cement mortar or use the primer again.
For hydrophobic impregnation, the priming is not necessary. To increase the adhesion, it is enough to moisten the surface of the walls, as a result of which the agent will penetrate inside, filling concrete pairs.
The most difficult process is in cementing. To do this, on concrete rings (if they are used for mounting) you need to lay the cement layer in 6-7 mm. Then you need to wait about 10 days. As soon as the first layer is driving, they apply the second for additional protection of the design.
Next performed the heat insulation of the structure. The insulation is selected depending on the material of the caisson. Concrete rings facilities are most often insulated by organic raw materials. Soloma, peat, sawdust. Steel and plastic structures can be insulated with glass gambles, polyurethane foam, polystyrene or basalt wool.
The thickness of the heat-insulator layer in all cases should reach at least 300 mm.
In the course of the insulation of the structure, do not forget about leaving ventilation gaps.
Now you can go to the installation of the caisson directly into the pit in the garage. You can collect the design right in the pit – every owner does it as it will be more convenient.
When the caisson is already in the pit, you need to do its right arrangement. In the inside of the mounted chamber, it is recommended to install several convenient shelves of the desired capacity. In the lower tier of the structure, it is advisable to leave enough space in order to conveniently place various boxes or other necessary containers for products.
Since all installation work will be focused on impressive depths in the garage building, the master must be needed to have a strong and safe staircase in arsenal. The most reliable are stairs that are made of wear-resistant metal. These designs should be fixed as securely as possible on the wall at once from two sides.
Along the stairs it is advisable to fix a few steel railings for convenience of descent and lifting.
And also need to take care that the garage caisson is completely secure for use. It is important to equip the approach to it well noticeable and distinguishable. The leading staircase should not have any defects – only strong structures are allowed to operate.
Often in the conditions of garage buildings People are equipping caissons as spacious cellar cellar. In such conditions, there are often cases when vegetables are started to rot, highlighting carbon dioxide. If it is accumulated in close and limited space, it can easily lead to very serious poisoning. Do not forget about ventilation device. It usually is a vertical pipe, the lower end of which is located in several centimeters from the floor of the caisson, and the other is displayed on the roof of the garage.
Before descending into the garage caisson, which plays the role of a comfortable cellar, it is best to ventilate. To do this, you can simply open the hatch and gate of the garage, so that the flow of fresh air can be freely entering the inside of the room. In addition, it is recommended In regular mode, check the performance of all ventilation elements. From such a cellar, you must immediately remove absolutely all spoiled reserves.
Many masters who independently installed garage caissons are interested than you can paint from inside. Selecting suitable paints, it is recommended to take into account all the features of the mounted space. Since in underground rooms, it is usually a rather high level of humidity, it is advisable to give preference more resistant to moisture substances. Perfectly fit facade paints and primer mixtures. They demonstrate very good quality atmospheric resistance, as well as protect the walls from rust.
As for the surfaces from concrete or the foundations covered with plaster mixtures, such usually finish with special dispersion compositions. They must be neutral to the effects of alkalis, which are highlighted from cement. The layer of such materials also acts as a good vapor barrier, due to which an unnecessary moisture is easily evaporated from the walls of the walls.
Independent installation of high-quality garage caisson rarely cause serious difficulties, especially if the master is based on detailed instructions when it is constructed. To get good results, it is important to act in stages, not in a hurry.
It is impossible to neglect any of the recommended stages of installation work.
About how to dig a pit in the garage under the caisson, you can learn from the video below.