Carpet underlay: is it necessary and which one is better? Do you need a carpet underlay and its types Felt carpet underlay

If when laying parquet and laminate the underlay material is used by default, then with carpet everything is not so simple. Many people think that it is not necessary, because carpet covering and so soft, it also masks minor defects in the base. However, experts insist on following installation technology. And the substrate is an important part of this process.

When in doubt whether to buy a substrate or not, it is worth citing the undeniable benefits of such a purchase:

• Extends the life of the carpet, because protects against friction. If carpet is laid directly on top of concrete, friction from the surface will destroy the flooring in just a few months. With a backing, the coating will last up to 2 times longer.


• Depreciates. The carpet is experiencing constant mechanical influences associated with the movement of people and the pressure of furniture. The substrate takes on part of the load.


• Increases comfort. Thanks to this layer, even thin carpeting will become softer and more pleasant - almost like long-pile carpet.


• Increases heat and sound insulation.


• Evens out small uneven floors.

Types of carpet underlays

There are 2 types of substrates on the market - synthetic and natural:

• Polyurethane foam.


• Polyurethane.


• Polyethylene foam.


• Rubber.


• Cork.

Let's take a closer look.

Polyurethane foam backing

Lightweight polyurethane foam has excellent soundproofing properties and enhances the heat and waterproofing of the room. Suitable for both private apartments and offices, hotels, medical institutions. A striking example is the substrate from, which is ordered for finishing sea ​​vessels, restaurants, stairs, rooms, entrances. The polyurethane foam backing can be laid on a base with small defects (up to 3 mm) - the main thing is that it is dry.

Polyurethane backing

Polyurethane-based underlay is usually used for carpet, which is installed using the “stretching” method, i.e. using gripper bars. Polyurethane substrates are produced framed in polyethylene film and kraft paper treated with waterproofing compounds. There are models with an additional layer of felt - they increase the thermal insulation of the floor.

Polyethylene foam backing

Other trade names are isolon, penofol. It is produced in thicknesses of 2-20 mm, and can be foil-coated. The foam backing provides thermal insulation and sound absorption, protects against steam and moisture (can be used in wet areas). Polyethylene foam is inexpensive, elastic, moisture resistant, but quickly loses its shape.

Rubber backing

Two main modifications - from crumb rubber and made of foam rubber. Crumb rubber is used to make heavy, resilient underlays for universal use, compatible with natural fiber carpets. Polyjute-based sponge rubber substrates are produced by a British manufacturer.

Cork backing

More expensive than others, but the cost is compensated by hygiene and safety. Cork is rarely used in commercial interiors, but it is perfect for finishing children's rooms and bedrooms.

In addition to pure artificial or natural substrates, there are combined materials. For example, bitumen-cork - they are less environmentally friendly, but can be used in wet areas, unlike pure cork.

Subtleties of buying carpet underlay

The substrate is selected based on a number of parameters:

• Thickness 5-10 mm. If the substrate is thinner than 5 mm, most likely its quality is below average. Material thicker than 10 mm is used less frequently.


• Elasticity. The easiest way to check the performance is by squeezing the substrate. It should return to its original shape and be completely smoothed out.


• Moderate density. The layer must allow air to pass through so that the room does not have a musty, damp smell.

The rougher and rougher the floor surface, the harder, thicker and more rigid the underlay should be. For a concrete floor, a thick polyjute-based material is suitable, and for laying over parquet or fiberboard, you can buy a soft polyurethane or polyurethane foam underlay (for example, the Estillon brand). For the “warm floor” system, microporous sponge rubber is used - for example, from Interfloor. A properly selected underlay will provide additional comfort in the rooms where carpet is installed and will extend its service life.

Abstract imitations and realistic images of water, foliage, flowers, forests and stones are transferred to a soft carpet. In addition, you will find materials such as marble and quartz, rough textures such as asphalt, dry dirt and even animal prints.

Spring colors
This color theme reflects the first season of the year. Green sprouting leaves and small white flowers that finally break the spell of winter. In addition, there is delicate designs, inspired pink flowers early morning sun and cherry blossoms.

Summer colors
This joyful multicolor theme interprets flowers summer garden, as well as green backgrounds. Additionally, this theme reflects the sand, pebbles and blue sea in a beach theme.

Autumn colors
The fall theme features warm shades of brown and gray covering the natural floors with dying leaves, branches, tree trunks, sand erosion and marble structures.

Winter colors
The cold feeling of winter is translated into the surface of the water with reflections. Blue and gray colors Add a cool atmosphere to marble, slate, grass and bamboo.

Carpet will become a universal covering for both residential and office premises. It has many advantages, thanks to which it has earned popularity. Is it worth laying carpet on a wooden floor and how to do it?

The material does not cause serious difficulties during installation. Almost anyone can cope with the task. But before laying carpet on a wooden floor, you need to carefully study the process technology. Only with a responsible attitude will the coating please its owner for many years.

Pros and cons of carpet

Is it possible to lay the material on wood? Is it worth choosing it as a floor covering? You can answer this question by knowing the advantages and disadvantages.

The soft covering creates visual and tactile comfort in the room

TO positive aspects Applications of the material include:

• a wide range of colors that can be used to easily complement the interior, expand the room or smooth out imperfections;
• good sound insulation and thermal insulation;
• material is processed by special means, which prevent the appearance of ticks, moths and other organisms;
• has high resistance to fire;
• low weight allows not to overload the floors;
• lasts a long time.

The disadvantages include:

• cannot be used in rooms with high humidity;
• stains from detergents may remain;
• sunburn;
• the standard width is 4 m, which may be inconvenient for rooms of other sizes.

Is it worth installing carpet? Yes. In most cases, its shortcomings do not have a significant impact on the operation of the material. In addition, this option will smooth out the troubles from noisy neighbors. For rooms on the first floor, additional thermal insulation will not be superfluous. This floor is much more pleasant to walk on than cold floors. ceramic tiles. In terms of heat-protective properties, linoleum or laminate cannot be compared with it.

Material selection

Before laying carpet on a wooden floor, you will have to visit the store and select required material. It can be used for different purposes: children's room, living room, bedroom or hallway. It is not recommended to install in the kitchen, bathroom and toilets - these rooms are characterized by increased level humidity. A more practical flooring material that is easy to clean from dirt is suitable here.

A competent choice of carpet is half the success. When selecting, you should take into account such characteristics of the room as:

• the number of people in it and the frequency of walking on the floor;
• presence of pets in the house;
• interior interior of an apartment or house, area of ​​premises;
• features of the base, its evenness and stability;
• the ability to perform regular cleaning and care for the coating material;
• budget.

The most important thing you need to know when purchasing is the size of the room. Before going to the store, you should measure the room. Moreover, measurements are taken at several points at once. This will allow you to find the widest sections: length and width. The purchase is made based on these indicators. Plus you will need to make a reserve. It will allow you to avoid sloppy and unaesthetic inserts.

When laying a covering on a warm floor, you should choose one that has short pile and consists of natural ingredients.

Options for heated floors under carpet

Laying carpet on a wooden floor involves the use of underlays. It is recommended to buy this material along with the main one.

The backing will hide all small defects wooden base

The carpet underlay is of synthetic origin. The following requirements apply to it:

• density and rigidity;
• no deformation;
• surface without damage or defects;
• thickness from 6.2 to 10 mm;
• good moisture permeability;
• ability to pass air.

A carpet underlay that meets all of the above requirements will extend the life of the material. It will not allow unpleasant odors and dampness to stagnate in the floor cake.

Preparing the base

Before laying carpet, you will need to carefully examine the surface of the wooden floor. There should be no cracks, dents, or strong differences in height. All these troubles will lead to the fact that the laid carpet will eventually take the shape of the base or begin to tear.

Nails and screws are the most simple ways eliminating squeaks

The next stage is filling small cracks and gaps with mastic.

To fill cracks, use a special wood putty

If the floor has only slight unevenness, then it may well become the basis for a carpet. Here it will be enough just to check the flooring for protruding nails or screws, and recess them into the wood if necessary. Next they do with a special machine or a plane.

Grinding stages

If serious defects are found during the examination, it is recommended to do this. For work, it is advisable to purchase moisture-resistant material. Plywood is laid in two layers. Between the rows you need to make an offset, as in brickwork. Four corners cannot meet at one point different sheets. Fastening is done using PVA glue, and then with self-tapping screws.

Plywood will help create a smooth and durable surface

After leveling, the underlay is laid under the carpet. It is not needed when installing the coating on a heated floor system. The material must be laid so that bubbles and unevenness do not form.

Fastening technology

Once the deficiencies of the flooring have been eliminated and the underlay for the carpet has been laid, you can proceed directly to work. There are several ways that allow you to correctly lay the material on a wooden base:

• securing the whole web;
• gluing fragments;
• attaching carpet to slats.

Regardless of the technology, after the material is brought from the store, it is spread on the floor and allowed to smooth out within a couple of days. The entire process must take place at room temperature.

When using only one color, it is wise to choose a method that involves laying a solid canvas. In this case, the fastening can be adhesive or non-adhesive. Second option will do For small rooms

. It consists of unrolling the roll on the floor, leveling it and securing it with a plinth. You should start with baseboards along the length of the room, then fix the sides along the width.

For a glueless connection, it is best to secure the edges and joints of the canvases with double-sided tape

1. Adhesive fastening is performed in the following order:
2. the canvas is laid out on the floor for several days, after which it is rolled up to the middle;
3. part of the surface near the roll is covered with an even layer of adhesive solution;
4. roll out the carpet a little, press it tightly with a heavy roller;
5. In this way, fix the first half of the coating, and then the second;
6. trim off excess around the edges;

fix the baseboards.

Installation with glue makes sense in rooms larger than 20 sq.m. If a composition of different materials In this case, parts are cut, the edges of which must be treated with a special seam. These parts are glued as close to each other as possible, taking into account the pattern and direction of the pile. The resulting joints must be sealed with colorless glue, which will prevent moisture from getting under the material.

Carpet underlay is a given when purchasing; we will look at this below for those who have doubts.

Carpeted floor coverings have been used for a long time, and what's more, they have become popular. There was a time when it was quite difficult to get a beautiful and large carpet for the floor and carpet was considered almost a luxury item. Now available to everyone. Rolled carpets or simply carpet are produced and sold in huge quantities. The soft covering can have not only a printed pattern, but also complete scenes. Carpet has earned its popularity solely for its affordable price, ease of installation and practicality.

Why is carpet underlay needed?

Helpful information:

The large selection of carpet underlays is due to the fact that the demand for carpet itself is quite significant. Why is underlay so necessary for carpet? Let's look at the properties:

• The service life of a carpet with a backing increases several times. This once again proves that it is necessary to lay additional layers under it. The substrate will take on all the loads and the carpet will not wear out, maintaining its qualities.
• The underlay can give the carpet additional softness. Any underlay, even a thin one, will turn a thin coating into a fleecy and thick carpet.
• Can increase sound and heat insulation. If you have a floating floor, then thanks to the underlay it will not creak. A substrate of only 5 millimeters can perfectly level the surface.

As a result, you can see that it is the substrate that helps preserve the appearance carpet, as well as improve some of the defects of the floors.

How to choose a carpet underlay

When purchasing a carpet underlay, carefully study the characteristics and properties of the material from which it is made. It should not be loose, it should be dense and slightly springy. If you squeeze the backing with your fingers and it doesn’t regain its shape, it’s better not to buy it. Thickness ranges from 0.70 millimeters to one centimeter. When choosing, be sure to take into account such properties as air conductivity. Otherwise, it may appear later bad smell dampness - the floor will rot and become damp.

Polyurethane foam

Used in hotels, apartments, offices. It perfectly levels the floor and improves sound insulation. This underlay must be laid evenly, joint to joint, on dry floors. Has a basis and top part made of polyethylene. If you want to lay carpet using the stretching method, then this type of underlay is perfect for you. This substrate is the most popular.

There are substrates with a paper, felt or polyurethane base. Their properties are soft, they also remove uneven floors well, and also make the floor warm.

Rubber

Carpet backings made from rubber crumbs are solid. They are used exclusively for carpet, which has a high-quality and natural base. With such a backing, your carpet will delight you for a long time, and the comfort and sound insulation of the floor will also improve.

Cork

Cork is made from natural raw materials, it does not emit unpleasant odors, and does not cause allergic reactions. This material capable of absorbing excess moisture, release it back into the atmosphere when the air is dry. Cork can be used equally well as a backing for carpet on concrete or on a wooden floor; its manufacturing technology prevents the development of mold or fungi on the surface.

June 2, 2016
Specialization: master in construction plasterboard structures, finishing works and styling floor coverings. Installation of door and window units, finishing of facades, installation of electrical, plumbing and heating - I can give detailed advice on all types of work.

Hello! Today's article is intended for those who doubt whether carpet underlay is needed. I'll explain why using an undercoat is essential if you want to keep your finish looking great for as long as possible. And for clarity, I will conduct comparative review materials offered on the flooring market. So, let's go!

Types of substrate and their fundamental differences

In order for the carpet to be reliable and comfortable to use, you should use only high-quality underlay. Regardless of the variety, products of this type must meet several basic requirements:

Environmental friendliness	The substrate should not contain components that could cause Negative influence on human health, for this reason all products in this group must have all Required documents confirming the safety of the product
Elasticity	It is due to the fact that the underlay is shock-absorbing, the load on the carpet is reduced and it lasts longer. It is not recommended to buy a substrate that is too hard or too soft, as it will not properly absorb shocks and loads, and the coating will wear out much more
Insulating properties	Some types of sub-base have high heat and sound insulation properties. This allows you to increase the comfort of your stay and do without additional work for insulating the floor surface. These factors are especially important for apartment buildings, where audibility is often very strong
Good wear resistance	During operation, the substrate is constantly subjected to loads, and if the quality of the material is low, then through short term it is caked and will no longer perform its functions. Therefore, you should choose only products from trusted manufacturers with a good reputation among specialists

Do not buy underlay for laminate, linoleum and other floor coverings, as it does not have the necessary properties.
Some unscrupulous sellers, in the absence of a special base for carpet, may try to sell you material for a different purpose, claiming that it is no different.
In fact, the differences are huge, and under no circumstances should you use the bases for the same laminate under carpet.

Now let's look at the types of materials. There are three main groups, and below I will talk in detail about each of them.

Option 1: polyurethane foam backing

This option is used most often due to a number of advantages:

• Moderate hardness allows for high comfort of movement on the surface, while the material absorbs well, which allows the coating to remain in excellent condition for many years;
• Good thermal and sound insulation performance allows you to make your stay more comfortable and reduce the consumption of energy resources required for heating the room;
• The most affordable price among all possible options, below I will indicate the cost of each of the solutions;

You will see for yourself that cheaper solutions simply does not exist, which is why this option is the most popular among buyers and is unlikely to lose its position in the coming years.

• As for the thickness, you can choose one of numerous options: 5, 8, 10, 12 and 15 mm, and the first three sizes are almost always on sale, and thicker sheets will have to be ordered and waited from 1 week to a month, it all depends from region and supplier;
• The products are produced both in the form of rolls and in the form of sheets measuring 1x2 meters, everyone chooses exactly the type that is most convenient to install in a given situation. Both options are identical in their properties.

As for the main brands on the market, you can find the following types of polyurethane foam substrate:

• “Comfort Elite” - this option is produced at a Russian-Dutch joint venture, it has good performance indicators. So, a 5 mm thick material provides noise insulation of 26 dB, which is very, very impressive. Products in this series have a density of 630 g/m2, a base with a thickness of 5 mm will cost you 185-200 rubles per square meter, and a thickness of 8 mm will cost 280-290 rubles;
• "Comfort Luxe" - more durable option from the same manufacturer, provides a soft surface and is used in hotels and the private sector. The density of the material is 1260 g/m2, and the sound insulation value is 32dB. As for the price, a 10 mm thick substrate will cost 310-330 rubles, 12 mm – 360-390 rubles, and 16 mm – 400-440 rubles.

It is worth noting that this version of the substrate is laid on glue, the consumption of which ranges from 800 to 1200 g. per square meter, the composition is sold in the same place where the material itself is sold. But if the carpet is laid without fastening to the floor, then the underlying base does not need to be fixed over the entire area.

Option 2: polyurethane materials

Polyurethane carpet backing is a more durable solution that is most often used in office premises, but there are options for home use. This group of products has properties similar to the option described above, but the elasticity indicators and service life are an order of magnitude higher.

If carpet can be glued or laid on a polyurethane foam base without fixation, then the polyurethane version is also suitable for stretching systems (in which the covering is stretched and fixed on special strips).

As for the main options on the market, the range is quite extensive and each type has its own advantages:

• "Comfort Elegant" is a substrate whose surface is covered on both sides plastic film. Its density is approximately 1000 grams per square meter, with a thickness of 6 mm, the sound insulation value is 24 dB. As for the cost, it is approximately 500 rubles per square meter;

“Comfort Elegant” is a series produced in our country by a Russian-Dutch joint venture

• “Best base” is another domestic option that has moderate hardness. The thickness is 6 mm and the density is 1100 grams per square meter, the main areas of use are public areas with moderate loads and rooms in residential buildings and apartments. As for the price, this type of product will cost you about 500 rubles per sq. m.;
• American-made Berber max underlay is highly soft and hypoallergenic. Its use allows you to achieve the best comfort of movement even on thin carpet, because the thickness of the base is 12 mm. The density is 850 g/m2, and the sound insulation performance is 38 dB, which is very, very respectable. Cost of one square meter is about 750 rubles;

• Very interesting option“Greep green” (made in the USA), its main features are: the presence of antifungal impregnation, absence of odor and high thermal insulation properties. The density of the material is 2.85 kg/m2 with a thickness of 8 mm. As for the cost, it is 830-850 rubles per square;

• "Tredaire Dynamics" is an English-made underlay that is soft and hypoallergenic and is used in residential areas. The material has a high density - 3.46 kg per square meter, so it is very durable and strong. As for the cost, it is 1150-1250 rubles per square meter.

Option 3: rubber backing

Another option that is used quite widely and has good operational properties. There are two main types - products made from foam rubber and options made from crushed rubber, which are distinguished by their versatility of use; they can be placed not only under carpet, but also under laminate and parquet.

As for the main properties of this group of products, they are as follows:

• Excellent moisture-proofing properties of the material, allowing you to protect the carpet from moisture that can penetrate from bottom to top;
• In addition, rubber has good heat and sound insulation properties, which allows you to save on insulation materials;
• The material has excellent elasticity, which does not deteriorate over time.

As for the options that are presented on the market, most often there are several main types of products:

• The D-500 substrate is made from crumb rubber on a polyjute base and is intended for coatings on a natural basis. The thickness of the material is 6 mm, and the cost is approximately 1100-1200 rubles;

• Tredaire Colors Red base is a soft, hypoallergenic base that is ideal for home use. The material has a thickness of 11.4 mm, a density of 4068 g/m2 and simply an excellent sound insulation value of 46 dB. The base of this type is easy to distinguish by its red color and corrugated surface; the cost is about 1,200 rubles per square;

• The last option I suggest considering is “Black Pearl”, a material made from foam rubber made in the Netherlands, which has excellent performance properties. With a thickness of 5 mm, the density remains 2700 g/m2, which indicates the excellent reliability of the base. As for the cost, this type of product will cost you approximately 1,100 rubles per square meter.

Remember that it is the foam rubber backing that should be used in rooms that are equipped with heated floors.
It is this option that transmits heat better than any other.

After selection quality option The substrate must be carefully studied and its method.

This process is described in detail in one of the reviews, so here I will briefly talk about this work so that you understand the differences:

• First of all, it is necessary to measure the area; you should not rely on the project; in fact, the parameters may differ, and quite significantly. Make a rough sketch marking all the openings and other features of the room; with its help, all calculations will be much easier. And always leave a small reserve so that in case of mistakes you still have enough material;
• Next you need to decide what type of coating is best to use indoors.. For bedrooms and other rooms with low traffic levels, you can use a budget polyurethane foam option. Where the loads are higher, it is best to use polyurethane (the degree of rigidity depends on the type of room), and if the room has a heated floor system, then perfect solution– rubber base;
• As for the base, it needs to be leveled; for this you can use either sheet material(plywood, chipboard), or a leveling solution, the most important thing is that you end up with a flat plane. It is very important that the level difference is no more than 3 mm per linear meter and there were no significant irregularities or flaws on the surface;

Let's look at the mounting methods, there are only three of them:

1. just laying and fixing (not recommended);
2. using double-sided tape;
3. glue method.

The latter solution is used most often due to its reliability. If you are simply laying the substrate, then be sure to glue it at least around the perimeter and near the entrance opening, since there are the highest loads on the surface.

As you can see, the process of laying the substrate is quite simple; the work can be done even without experience in this field.

• Be sure to leave an overlap of 50-70 mm on the walls; excess material is cut off only after leveling and fastening, when you see how the material lays and what needs to be cut off. Cutting is done using a carpet knife or regular scissors;
• V-shaped notches are made in the corners to ensure a tight fit in these areas.

Conclusion

Choose best option The underlying principles are not difficult, the main thing is not to skimp on quality. Pay special attention to the softness of the material, for example, if you want to get a surface on which it will be pleasant to walk barefoot, then the backing for carpet on plywood should be at least 8 mm thick. The video in this article will tell you additional facts on the topic, and if you have questions, ask them in the comments under the review.

In Russia, people are reluctant to buy carpet underlay, naively believing that they will “feel great” without it. But in vain! Europeans and Americans have gone much further than the Russians in matters of construction and interior decoration and their practice can be trusted. So, for them, a carpet underlay is a matter of course when purchasing a soft covering. They have long proven that this material can greatly increase the service life of carpet, making it softer and more comfortable for walking. What types of carpet underlays exist? How to choose a high-quality substrate and why is it needed at all? You will learn about all this from this article.

Carpet backing. Fad or real benefit?

Is it possible to do without a substrate?

You can do without a substrate, but do you need it? See for yourself! With a backing, your carpet will last you twice as long as without it, because the friction that occurs between the covering and the base of the floor leads to only one thing - rapid wear. In addition, some types of soft coverings are quite thin, which affects the comfort of the material - walking on such carpet is, of course, better than walking on a bare floor, but it’s not very pleasant for your feet.

Another advantage of using a carpet underlay is the ability to lay the covering on an uneven base. Naturally, we are not talking about a screed completely covered with “pits and ditches,” but it is quite acceptable to lay carpet on a base with minor defects.

In addition, the underlay serves as an additional heat, sound and water insulator, which means the floor in your home will always be warm and dry. Well, the last point: the underlay can significantly save your money, since its combination with a thin carpet costs much less than even the cheapest long-pile covering.

Substrate and parquet

I would like to make a separate point about laying carpet on parquet and parquet boards. In this case, the use of an underlay is mandatory, since even the most ideal parquet from the point of view of laying creates an increased load on the carpet at the joints of the parquet blocks. For high-quality installation of carpet on parquet, experts recommend using the stretching method on gripper slats. Of course, this fastening option somewhat damages the parquet, but such a sacrifice is necessary for longer service life of the carpet.

The gripper strip will allow you to lay carpet on the parquet with high quality

Types of carpet underlays

There are several types of carpet underlay. Each of them has its own characteristics and advantages, but how to navigate the assortment, albeit small?

Polyurethane foam substrates

From the name it is clear that this type of substrate consists of polyurethane foam - a material that has high thermal and waterproofing properties. This substrate has proven itself not only in city apartments, but also in medical institutions, offices, and hotels. Thanks to it, you can achieve a feeling of complete unity with your own home, because polyurethane foam, among other things, is also an excellent soundproofing material.

You can use a polyurethane foam backing both on perfectly smooth substrates and on surfaces with minor defects, the main thing is that the base is dry.

The polyurethane foam backing hides screed unevenness well

Polyurethane substrates

Polyurethane substrates are somewhat thicker than polyurethane foam and have an additional top layer of polyethylene, which protects the material from moisture. This type of underlay is ideal for laying carpet using the stretching method. There is another type of polyurethane backing with felt top layer. This material perfectly soundproofs the room and hides unevenness in the base. Polyurethane substrates are available as paper based, and based on artificial jute.

Polyurethane underlay for carpet with a polyethylene protective layer is an excellent way to insulate a cold floor

Rubber crumb backings based on polyjute

This type of underlay can be used not only for carpeting, but also for laying parquet board and laminate. The structure of the crumb rubber backing is quite dense and hard, but when carpet is laid on it, it becomes springy and elastic. This material perfectly protects the soft covering from moisture, prevents heat from escaping from the room and perfectly removes sounds. It is advisable to use such a backing in combination with natural-based carpet.

Rubber crumb backing - a durable base for carpet

Subtleties of purchase

When choosing a substrate in a store, you should pay attention to the following points:

• external data. The thickness of the substrate should be from 5 to 10 mm. If this parameter is below the norm, then most likely you are looking at a fake that is not of high quality.
• specifications. Check the material for strength and elasticity. If, when the substrate is compressed, it does not return to its shape, remains wrinkled and untidy, then you should opt for another option. A high-quality substrate has a strong, elastic structure that quickly recovers after any physical impact.
• moderate porosity. The substrate must “breathe”, otherwise the room may smell musty and damp.

Well, now you know whether you need a carpet underlay; all that remains is to choose the one that is ideal for your carpet. Let the soft pile delight your feet every day!