Correct installation of household appliances is often ignored by owners who focus only on the appearance of the device. However, the durability of both the equipment itself and the floor covering depends on what is located directly under the bottom of the unit. Vibrationwhich occurs during compressor operation can destroy even durable tiles or deform laminate over several years of operation.
Many users wonder if anything is needed at all lay, or factory legs are enough. The answer depends on many factors: floor type, refrigerator model and room conditions. Ignoring this aspect can lead to puddles, squeaks and even corrosion of the lower part of the body.
In this article we will analyze in detail which materials are suitable for insulation and which can be harmful. You will learn about the physical properties of various coatings and understand how to ensure the stability and safety of your equipment.
Why there is a need for a substrate
The main reason why you should think about an additional layer under the refrigerator is condensation. During operation, the unit generates heat, which is dissipated through the rear wall and bottom of the housing. If the room has high humidity or air circulation is impaired, moisture settles on cold metal surfaces and flows down.
Another critical factor is vibration. Even modern models with inverter compressors create microvibrations that are transmitted to the floor. Over time, this leads to loosening of the joints, cracks in the tiles or swelling of the laminate. Rug or a hard substrate dampens these vibrations, prolonging the life of the equipment.
⚠️ Attention: Constant dampness under the bottom of the refrigerator creates ideal conditions for the proliferation of mold and mildew, the spores of which can enter the kitchen ventilation system.
The substrate also performs a leveling function. If the floor has slight unevenness, a rigid sheet of material will distribute the load from the legs more evenly, preventing the door from skewing and the seal from breaking.
Criteria for choosing a suitable material
When choosing what to put under the refrigerator, you need to take into account several technical parameters. The material must be resistant to moisture, as accidental leaks or condensation can occur. In addition, it is important mechanical strengththat the legs of the equipment do not push through the coating.
Thermal conductivity is another important aspect. The substrate should not interfere with heat removal, but it should not heat up itself, transferring the temperature to the floor. The optimal solution is to use materials with low hygroscopicity.
- 💧 Moisture resistance - the material should not absorb water and swell.
- 🛡️ Wear resistance - resistance to abrasion and pressure from sharp edges of the legs.
- 🔥 Heat resistance - the ability to withstand heat from a running compressor.
- 📉 Sound insulation - the ability to absorb vibration noise.
You should not use materials that are easily flammable or emit toxic substances when heated. Operational safety should come first, especially if the equipment is installed in a niche or closed box.
Use of linoleum and rubber mats
One of the most popular solutions is a piece of linoleum. This is an affordable material that can be easily found in any hardware store. Linoleum copes well with moisture and is easy to clean, making it easier to care for the area under the refrigerator.
Rubber mats, often used in garages or industrial facilities, are also suitable for domestic use. They have a high coefficient of friction, which prevents equipment from slipping during vibration. However, rubber may have a specific smell at first.
When choosing linoleum, pay attention to its base. Synthetic materials are preferable to natural ones, as they are less susceptible to rotting. The thickness of the layer should be sufficient to compensate for minor defects in the floor, but not too large so as not to disrupt the stability.
Use of plywood and chipboard for leveling
If the floor in the room has significant unevenness, soft materials may not be effective. In such cases, sheets plywood or moisture-resistant chipboard are used. These materials create a rigid platform that distributes the weight of the refrigerator.
It is important to choose plywood marked FK or FSF, which have increased moisture resistance. Ordinary construction plywood can delaminate from condensation in one season. Before installation, it is recommended to treat the sheets with an antiseptic and coat them with varnish or drying oil.
| Material | Moisture resistance | Strength | Sound insulation |
|---|---|---|---|
| FK plywood | Medium | High | Low |
| Linoleum | High | Medium | Medium |
| Rubber | High | High | High |
| Ceramic tiles | Maximum | Maximum | None |
The use of wooden substrates requires regular monitoring. It is necessary to periodically check the condition of the material for the appearance of rot or insects. If you notice swelling of the edges, the sheet must be replaced.
Protection of laminate and parquet
Owners of expensive floor coverings such as laminate or parquet should be especially careful. These materials are resistant to moisture and mechanical damage. The legs of the refrigerator can leave deep dents, and condensation will lead to swelling of the joints.
For protection, it is recommended to use a combined method. First, a moisture-proof film or thin linoleum is laid down, and a hard sheet of plywood is installed on top. This allows you to combine protection from water and uniform distribution of the load.
☑️ Checking the floor protection
There are also special plastic or metal stands for the legs that increase the support area. They prevent the coating from being pushed through and make it easier to move equipment during cleaning.
Errors during installation and operation
A frequent mistake is the use of materials that completely block air access to the bottom of the unit. Some users cover the floor with a thick carpet or felt, which leads to overheating of the compressor. Heat sink is a critical process for the operation of the refrigerator.
Another mistake is neglecting the level. If the substrate is laid crookedly, the refrigerator will stand at an angle. This can lead to improper closing of the doors and disruption of the condensate drainage system.
⚠️ Attention: Never use materials that are easily flammable or melt at temperatures above 40-50 degrees Celsius near a running compressor.
It is not recommended to leave gaps between the substrate and the wall, where it can clog dust and small debris. This creates pockets of dirt that are difficult to remove without moving heavy equipment.
The Myth of the Carpet
There is an opinion that an old carpet under the refrigerator improves sound insulation. In fact, fleecy materials accumulate static electricity and dust, which can lead to a short circuit or fire.
Recommendations for caring for the installation area
Even with a high-quality substrate, the area under the refrigerator requires periodic maintenance. Once every six months, it is recommended to move the equipment away and check the condition of the floor and the substrate material itself. This will help to detect leaks or damage in time.
When washing the floor, try not to flood the joints between the substrate and the main coating with water. Moisture trapped under the sealed layer can stagnate and cause an unpleasant odor. Use a damp but well-wrung out rag.
If you notice that the refrigerator has begun to vibrate more than usual, check to see if the substrate has become loose and if the legs are level. Sometimes it is enough to tighten the adjusting supports to fix the problem.
Can ceramic tiles be used as a substrate?
Yes, tiles are one of the best materials for protecting the floor. It is not afraid of moisture, is easy to clean and is highly durable. The main thing is to ensure that the surface is smooth and the legs of the refrigerator do not slide on the glossy surface.
Is it necessary to glue the underlay to the floor?
In most cases this is not necessary. The refrigerator will firmly press the material with its weight. It is worth gluing only linoleum around the perimeter if there is a risk of scuffing, but it is better to leave the center itself free for air circulation.
How often should you change the rubber mat?
Rubber can dry out or become deformed over time. It is recommended to inspect the mat once a year. If it has lost its elasticity, becomes cracked or begins to crumble, it must be replaced.