Incorrectly mounted ceiling in the garage on screw piles leads to the fact that the lags begin to rot, and the insulation gets wet due to high humidity in the underground. It is with the check of the state of the roastwork and waterproofing that any construction begins, since ignoring these components makes the operation of the car impossible due to dampness and cold. The design must withstand dynamic loads from the weight of the machine, so the choice between concrete screed and wooden decking requires careful calculation of the bearing capacity of the foundation.
Owners often underestimate the impact capillary, which without high-quality vapor insulation destroys the structure of the insulation in one season. Creating a solid foundation requires not only laying boards or pouring concrete, but also organizing the right floor pie with wind protection. Errors at the stage of installation of lag can lead to deformation of the entire coating, so each step must be performed with the observance of technological gaps.
Choice of gender technology
Before starting the work, you need to determine the type of coverage, because stilt-car It means there is a void under the house through which cold air passes. Concrete screed on the flooring provides monolithic and fire safety, but creates a significant load on the foundation, requiring enhanced roasting. Wooden flooring is easier to install and easier, but it requires high-quality antiseptic treatment and regular care.
If you plan to install heavy equipment or an observation pit, the concrete base becomes an alternative solution. In this case, pile-carrying The stain is then placed between them and the stains are placed between them. For light cars and seasonal storage, high-quality wooden flooring made of larch or a thermoboard is sufficient, which is resistant to rotting.
- 🏗️ Concrete floor - Ideal for constant use, repair and installation of workbenches.
- 🌲 Wood flooring Budget option, quick installation, but requires protection from moisture.
- 🧱 Combination - use of DSP or flat slate as a non-removable formwork.
⚠️ Note: When choosing a concrete screed, make sure that the diameter of the pile trunk and the thickness of the metal wall allow you to withstand the weight of wet concrete and the car at the same time.
Installation of load-bearing lag and rough flooring
Installation of lag is a critical stage, determining the rigidity of the entire floor. For garage on screw piles are usually used double-beam or a powerful wooden bar with a cross section of at least 200x200 mm. The step of installing the lag is calculated individually, but for the arrival of the car it is recommended to make the distance between the axles no more than 60-70 cm.
Mounting lag to the metal roasting is carried out through special brackets or by welding corners. It is important to ensure the horizontality of the plane, as distortions will lead to an uneven distribution of the weight of the car. All metal elements of welded joints must be treated with an anti-corrosion composition after welding.
Black floor is often made of a trimmed board 40-50 mm thick or sheet materials type OSB-3 or DSP. These sheets serve not only as a base, but also as a windscreen for the insulation, preventing it from blowing out. Between the boards of the black floor leave small gaps to compensate for the thermal expansion of materials.
☑️ Checking the installation of the lag
Insulation and vapor insulation of the structure
High-quality insulation turns a cold hangar into a comfortable room where you can work even in winter. The optimal material for the floor on lags is considered stonewall high density, which does not burn and perfectly retains heat. The insulation layer should be sufficient to prevent the dew point from shifting inside the structure, which usually requires a layer thickness of 150 to 200 mm.
Below the insulation is necessarily closed by a vapor permeable windshield membrane, which releases steam from the insulation, but does not let moisture and wind outside. It's layered on top. vaporproofingprevents the ingress of moisture from the room into the insulation. The tightness of the contour of vapor insulation is achieved by gluing all joints with special tape.
| Materials | Thermal conductivity, W/m*K | Fuelsity | Wet resistance |
|---|---|---|---|
| Mineral wool | 0.035 - 0.045 | NG (Not burning) | Hygroscopic |
| Extruded polystyrene foam | 0.028 - 0.032 | G4 (Highly flammable) | Not absorbing. |
| ceramzit | 0.1 - 0.18 | NG (Not burning) | It's long-drying. |
| Foam (PSB) | 0.035 - 0.040 | G3 (Normal fuel) | Not absorbing. |
Nuances of insulation laying
When laying mineral wool, it is important to avoid the formation of cold bridges. The plates should be placed between lags of iraspora, without gaps. If rolled material is used, it is rolled over with a swipe on the walls.
Concrete screed device for lags
If the option with a concrete floor is chosen, then a reinforcement net is laid over the rough flooring or proflagging. The diameter of the rod is usually 8-10 mm, and the cell is 150×150 mm or 200×200 mm. The reinforcement should be in the lower third of the thickness of the concrete, for which special plastic fixtures or linings are used.
The casting is made by concrete of the brand not lower M300 (B22.5). For a garage where it is possible to store aggressive liquids, it is recommended to use concrete with additives that increase water resistance and chemical resistance. The screed thickness should be at least 10-12 cm to ensure the necessary strength under the wheels of the car.
An important step is the device of deformation seams, which compensate for the temperature expansion of concrete. Without them, the screed can crack during operation. After pouring, the surface is carefully leveled by the rule, and topping or hardening impregnations are often used to harden the upper layer.
⚠️ Attention: Concrete must be poured in one step to avoid the formation of cold seams that reduce the monolithic structure.
To improve the characteristics of the concrete floor, use fibre when mixing the solution - this will reduce the risk of cracking when drying.
Finishing and floor protection
The finish layer protects the base from abrasion, oils and chemical reagents that inevitably fall from the wheels of the car into the garage. For wooden floors, special wear-resistant varnishes or terraced oils are often used that emphasize the texture of the wood. Concrete floors require mandatory processing, as unprotected concrete dusts and quickly collapses.
The most popular solution for garages is epoxy or polyurethane filler floors. They create a seamless, durable coating, resistant to shock and chemistry. An alternative is rubber modular tiles, which are easy to install and have excellent shock absorbing properties.
When choosing a finish, you should take into account not only aesthetics, but also practicality. The smooth glossy coating is easy to wash, but it is slippery in winter. Rough surfaces are safer but harder to clean. Properly selected coating extends the service life of the entire floor structure.
- 🎨 Epoxy resin - creates a strong chemically resistant film.
- 🧱 Clinker tile A classic, long-lasting, but expensive solution.
- 🛡️ Polyurethane impregnation It penetrates into the structure of concrete, strengthening it.
Protecting the underground from rodents and moisture
The space under the garage on stilts often becomes attractive to rodents, which can damage the insulation and communications. To prevent this, a metal mesh with a small cell dug into the ground is installed along the perimeter of the cap. This creates a physical barrier through which mice and rats cannot penetrate.
Underground ventilation also plays a key role in the safety of the structure. Presence breather ensures air circulation by removing excess humidity, which is formed due to temperature differences. However, in winter, it is recommended to close the air to avoid coldening the floor, or use a forced ventilation system with recovery.
Waterproofing of the basement part protects the insulation and lags from splashes of dirt and snow. For this, often use ground siding, profencing or decorative plaster on the insulation. It is important to leave the technological gaps for ventilation, closing them with grilles.
The main secret of the durability of the garage on stilts is not so much the thickness of the floor as high-quality waterproofing and protection of the insulation from rodents.
Can I make a warm water floor in the garage on stilts?
Technically, this is possible, but requires a significant increase in the thickness of the floor cake and strengthening the foundation. In addition, in an unheated garage in winter, the water in the pipes can freeze if antifreeze is not used, which reduces the efficiency of the system.
What is the minimum gap between the ground and the garage floor?
It is recommended to raise the floor at least 50-60 cm from ground level. This ensures normal ventilation of the underground and reduces the risk of flooding during spring floods or heavy rains.
Do I need to build a bridge around the garage on stilts?
Yes, the pavement is necessary to divert water from the piles and prevent soil erosion around the supports. This is especially important for pulpy soils, where moisture can cause uneven movement of piles.
How often should wooden lags be treated?
Quality industrial processing lasts up to 10-15 years. However, it is recommended to conduct a visual inspection every 2-3 years and, if necessary, update the protective coating with flame retardants.