Knauf super-floor system: dry screed using German technology. Knauf Superfloor: description, technical characteristics, advantages, scope of application, features of preparatory work and installation, video Knauf Superfloor flooring technology

The floor is an integral part of the room and affects not only the interior of the room, but also such indicators as temperature and humidity, and the level of thermal protection. Therefore, the international company Knauf, working in the field of production of building materials, has developed the Knauf-superfloor technology, which allows short terms execute high-quality installation subfloor for further installation of the finishing coating.

Knauf-superpol - what is it?

Knauf-superpol is a team design or a system that allows you to avoid “wet work” on the concrete screed and, accordingly, reduce technological interruptions associated with its drying.

Elements This system consists of glued gypsum fiber sheets, offset by 50 mm relative to each other, due to which folds are formed around the perimeter. The Knauf superfloor element has a total thickness of 20 mm and overall dimensions 1.2×0.6 m. With such a thickness, the floor element weighs little, but the resistance to loads of its surface reaches 20 MPa.

Dry soil serves as a leveling base for the elements of this system. backfill made of expanded clay (with a fraction size of 0−5 mm), ideally filling the space and having excellent thermal and sound insulation, as well as fire protection characteristics. If the expanded clay granules are larger, a slight characteristic crunching sound can be heard when walking in silence.

System floating Knauf flooring, as it is also called, has compared to traditional floor leveling concrete screed row benefits:

reduction deadlines installation The Knauf-superfloor system allows you to complete all the work in just a few days and not have to take a technological break for the screed to dry before laying the final flooring you can start immediately. However, according to the recommendation of experts, you should not touch the dry screed for several weeks if the thickness of the backfill layer is more than 5 cm, since with such a thickness the backfill material will shrink by approximately 15 mm;
The main advantage of this system is absence wet work. Laying dry screed can be carried out without fear in a room where the renovation has already been completed;
sound and heat insulation. Expanded clay backfill prevents noise penetration and heat loss;
floating floor technology creates base, which is ready for further coating and does not require additional leveling of small differences and irregularities inherent in sand-cement screed. This means it saves both time and money. Since the base, assembled from Knauf-superfloor elements, is smooth and even, any type of flooring can be laid on it, be it linoleum, laminate, tiles, and so on;
unlike cement-sand screed, dry screed is lightweight and does not load the floors;
It is possible to lay pipes or wiring directly in the dry screed.

Knauf-superfloor is laid on wooden and concrete floors in rooms with a non-aggressive environment. When laying a waterproofing layer, this system can also be used in showers and bathrooms. This system is especially relevant in conditions of reduced loads on floors or when “wet” work is excluded.

When is the Knauf system relevant?

Such floors have wide range opportunities and allow, in some cases, to get by at low costs. Use dry the screed is convenient:

to eliminate differences in the floor base over 40 mm. This applies to apartments of old buildings, where a serious difference in elevation is the norm;
when installing electrical wiring and water supply systems after completion of repairs;
for limited periods repair work;
Possibility to install a floating floor low temperatures air;
when the logs become dilapidated.

Construction of a dry screed

Dry screed installation work Knauf begin with measurements of the covered floor area and its horizontal level. This can be done using a building level, making notches on the wall indicating the deviation of the base from the horizon. The notches are then connected using a ruler and thus the required layer of expanded clay backfill is determined. The expanded clay layer should not exceed 100 mm. The required volume of backfill is determined based on 50 kg (1 bag) of backfill to cover 1 m². But this relationship is true in the case when the previous floor covering is completely dismantled.

For installation floating floor you will need:

Super PVA glue;
Knauf-superpol elements;
self-tapping screws for gypsum fiber sheets;
expanded clay backfill;
vapor barrier;
construction tape;
edge tape or polyurethane foam sealant.

It is more advisable to use edge tape when the wall curvature is up to 2 mm/m.p. If this indicator is higher, it is better to fill the gap between the wall and floor base sealant, the excess of which, after hardening, is removed with a sharp knife.

After cleaning On the base of the floor, a vapor barrier (polyethylene film) is spread from small debris and dust with an overlap of about 200 mm on the walls. On top of this film, using a thick gypsum mortar, beacons are installed at the marked level, for example, aluminum slats for laying plasterboard slabs, with a pitch of 900 mm. When laying elements systems on a wooden supporting base, instead of polyethylene film, corrugated, waxed paper or glassine is used.

The space between the beacons is filled with expanded clay the fraction that is being leveled building rule. When forming a layer over 5 cm, the backfill must be thoroughly compacted.

Process styling Knauf-superfloor elements start from the corner. The edge adjacent to the walls is trimmed. All elements are mounted using the tongue-and-groove type, with the seams coated with glue and then connected with self-tapping screws with a pitch of 100 mm. Experts emphasize that when screwing in the screws, you must be on the sheet that is being screwed.

The first row of elements is carefully levels out at the intended level, since the installation of other parts of the system will depend on this. The regulated gap between the wall and the gypsum fiber sheets - 1 cm - is subsequently filled with polyurethane foam sealant. After all the sheets are mounted, the finished base must be vacuumed.

Nuances

This design of the floor base allows the result to be durable coating capable of supporting the weight of the loaded passenger car. However, in order to avoid unpleasant “surprises” when using the assembled floor covering, professionals recommend sticking to a few rules:

Before installation, the elements of the Knauf-superfloor system must be adapted to the room where they will be installed.
GVL sheets should be stored on a flat surface strictly horizontally.
The base layer of expanded clay should not deviate too far from the horizontal level.
when installing a base from Knauf sheets in wet rooms, in addition to the mandatory laying waterproofing tapes along the walls, the surface of the mounted elements is covered with a layer of waterproofing. By the way, the manufacturer Knauf also produces them.
When finishing coated with a thin elastic material, the base is covered with a layer of no more than 2 mm of self-leveling putty.

As you can see, the process of constructing the Knauf superfloor uncomplicated, saves not only time, but also money, allows you to reduce loads on floors, increase the level of noise and heat protection, and also level floor coverings of complex configurations. The only disadvantage of this foundation is its vulnerability to moisture in case the neighbors above flood it. However, for the neighbors below, after installing the Knauf superfloor, additional sound insulation will be a gift.

Everyone knows the “classic” method of leveling floors - filling with a regular screed. This process is, of course, simple, but it leaves a lot of dirt behind, and besides, you need to wait another month until everything dries before resuming construction work indoors. The Knauf floor element will help improve the quality and reduce the time required to complete the work.

Dry screed is a well-known building material from Knauf, a German international company, successful business which is predetermined by reliability and quality building materials, and also innovative approach to production. This is a material that is designed to form a flat floor base for any covering - laminate, tile, parquet, linoleum. In addition, this material will significantly improve the thermal and sound insulation of any room, which will provide sufficient sound insulation, which is so necessary in city apartments.

Characteristics from the manufacturer

The floor element is a factory product that is ready for use, it is made from GVLV sheets (moisture-resistant gypsum fiber sheets). The process of manufacturing floor elements is quite simple: two moisture-resistant gypsum fiber sheets are glued together, and a mutual displacement is made in the perpendicular direction.

Floor elements are given standard sizes– 1.2m*0.6m*0.02m, plates are packed in bags of 70 pieces, standard package weight is about 18 kg. Specialists will be interested in some additional information on this material, so, the width of the folds of the lower layer is 50 mm; The width of the folds of the top layer is 50 mm. Usable area floor elements is 0.75 m2, and the thermal conductivity coefficient is from 0.22 to 0.36 W/mS.

The heat absorption coefficient is less than 6.2 W/mS, the vapor permeability coefficient is 0.12 Mg/m*h*Pa, and the surface water absorption is less than 1.0 kg/m2. The hardness of the working-facial surface is more than 20 MPa, the toxicity index is T1 (GOST 12.1.044.89), the flammability index is G (GOST 30244-94), the flammability index is B1 (GOST 30402-96), the smoke-forming ability index is D1 (GOST 12.1.044.89). All this data confidently competes with other market offers, and compliance with GOSTs allows you to trust the manufacturer.

Installation and work order

The products can be used to perform work on assembling floor subfloors in residential and industrial premises. The floor element can also be used indoors special purpose such as bathrooms, swimming pool changing rooms, toilets, however, in this case it is necessary to use a special waterproofing coating. It should also be remembered that these floors are environmentally friendly technologies, since the materials from which they are made are completely safe. This material has the best fire-fighting properties, which will allow you to use it safely both in the kitchen and in large quantities wiring.

When carrying out construction and installation work, Knauf Superpol floor element is recommended to adhere to certain requirements. The first step should be marking the floor level. After calculating the footage of elements needed to cover the room, you should think about a layer that will protect against moisture and prevent condensation from accumulating, which can lead to the accumulation of dampness, mold and germs.

The Knauf floor element must be laid on a protective polyethylene film laid around the entire perimeter; its joints must be connected with construction tape or a stapler. Along the edges, near the walls, you need to install a double tape of elasticized polystyrene foam and polyethylene film as an edge tape. The floor must be level, which means that a leveling layer of dry backfill is needed. Check the accuracy of the work several times before moving on to the next step. After this, you can and should lay the German building material you purchased.

Considering the ease of use of the system, it can be used both in industrial construction and in domestic construction, when renovating apartments and office premises. However, when working with these floors, it is necessary to follow certain rules and recommendations. Remember that before use, floors must adapt to new temperature conditions and humidity conditions, so floors must be stored on a flat surface in a horizontal position, and brought into the room several hours before starting work.

The subfloors you prepare for work should be dry, clean and free of slopes. In addition, there are features of the actual installation of floors - they must be laid sequentially and a special tool must be used when working - self-tapping screws. If you need to cut flooring sheets, this should be done with a power tool, such as an electric jigsaw with a large cut.

KNAUF-superfloor: material features and installation steps

- a floor element produced in a factory. It is glued together from two small-format sheets that are not afraid of moisture. Their dimensions reach 1200x600x10 millimeters. There is a displacement of the sheets relative to each other in directions of 50 millimeters.

Description of material

Superflooring consists of rectangular sheets with a straight or folded edge. Their front side is well polished. The material is produced by semi-dry pressing of the mixture. It contains gypsum substance and fluffed cellulose waste paper.

Technical features

KNAUF-superfloor makes it possible to:

Reduce waste during installation.
Reduce loads on floors, which is important in the case of reconstruction of old buildings.
Make prefabricated floor subfloors in rooms with complex configurations.
Reduce the time required for finishing work.
Increase the sound and heat insulation properties of the floor.
Reduce the time of technological breaks.

Advantages

KNAUF Superfloor presents a reliable, easy-to-install and modern floor covering. It solves many problems.
Excellent sound insulation is achieved.
The desired level can be made without the use of complex mechanisms.
Can be easily changed appearance floor, without changing the design.
The element is installed one by one, the entire floor can be laid in 8 hours.
Each element weighs a little.
The surface is smooth afterward.

Scope of application

Installation of the product is carried out during the construction of prefabricated floor foundations in public, industrial or residential buildings and premises. Standard gypsum fiber sheets are used in buildings with normal or dry humidity characteristics. GVLV can be used in normal, dry or wet buildings. KNAUF sheets are also actively used as a superfloor element.

Features of preparatory work

Do-it-yourself installation technology for the presented type of floor must follow certain rules.

Prepare the rooms - inspect the floor, corners of the room for cracks, clear the space of anything unnecessary.
If defects are found on the floor surface, you should get rid of them.
If the installation is carried out in a greenhouse, kitchen or shower room, lay a polyethylene film around the perimeter of the floor. Near the walls, its edges should be higher than the height of the floor structure. When working with sand, leveling rulers are used.
Installation of the covering begins from the wall where the door is installed. If you have to work from the other side, you need to install special islands. At the wall, the finished lamellas are cut off at the junction. The next row starts from the same place.

Important! To minimize waste, the next row should be installed from the cut piece.

Installation technology requires care. The displacement of the end joints should not exceed 250 millimeters. If everything is done correctly, the floor will serve reliably for several decades.

Implementation of installation

Installation of the presented floor is relevant in a number of cases. It is convenient to use it when:

the timing of the work should be limited;
the logs are dilapidated;
there are differences in the floor surface of more than 40 millimeters - apartments are of an old foundation;
it is necessary to install a water supply system or complete repair work;
It is necessary to install a floating floor when the ambient temperature is low.

Installation of dry floor screed "Knauf" (video)

System installation work

First of all, measurements are taken of the floor area and its horizontal level. A building level is used. Marks are made on the wall that show the deviation of the base from the horizon.

On square meter coatings are placed with 50 kg of expanded clay (at complete removal previous).

Tools and materials

Floor installation technology involves the use the following materials and tools:

Super PVA glue;
construction tape;
system elements;
polyurethane foam sealant;
screws;
vapor barrier;
expanded clay backfill.

If the wall curvature is up to 2 millimeters/m.m., it is recommended to use edge tape. If higher, sealant is applied. Its excess is removed with a knife.

Vapor barrier

After the subfloor is cleared of dust and debris, a vapor barrier is installed. The overlap on the walls should be 200 millimeters. Beacons are placed on top of the film using plaster - these can be aluminum slats. Their pitch is 900 millimeters. If the element is placed on wooden base Instead of polyethylene film, use:

glassine;
corrugated paper;
waxed paper.

Expanded clay is poured between the lighthouses. They level it out with a rule. If the layer exceeds 5 centimeters, the backfill should be compacted.

Installation sequence

The floor is installed from the corner. The edge that comes into contact with the wall is trimmed. One element is inserted into another using a tongue-and-groove system.
The seams are coated with glue and connected with screws. The step between them should reach 100 millimeters. When screwing the sheet, you should stand on it.
The first row must be placed clearly level. The remaining elements are placed focusing on it.
There should be a gap of 1 centimeter between the sheets and the wall. It should be sealed with sealant in the future.
Upon completion of installation, the floor should be thoroughly vacuumed.

Some nuances

Using the presented design you can get a very durable floor. However, operation must be carried out in compliance with the following rules:

elements must “get used” to the room before installation;
sheets are stored only horizontally;
the best option is a horizontal layer of expanded clay;
In wet rooms there must be a layer of waterproofing.

We also invite you to find out by reading the corresponding article on our website.

Installing the system is easy. At the same time, the installation process will cost you much less than the equipment of other systems. The design shown is different high level heat and noise protection, allows you to level any surface. The only drawback is the fear of moisture. However, you definitely won’t hear your neighbors below. The system is installed in various industrial, residential and civil buildings, as well as in the presence of waterproofing, in rooms with high humidity.

Installation of the KNAUF-superfloor base (video)

The German manufacturer positions Knauf dry screed as a Superfloor, suitable for use in dry and damp rooms, the temperature inside of which does not fall below + 10 degrees.

In addition to materials for 4 types of dry screed - Alpha, Beta, Vega and Gamma, the Knauf company produces tools for this technology (2 guide rails and one sliding rule as standard).

However, original brand products are expensive to repair on our own you can get by with gypsum fiber sheets from any manufacturer, plastic film, damper tape and expanded clay sand from the nearest building materials store. The tool is an aluminum rule 1.5 - 2 m and a profile from gypsum fiber board systems (usually rack-mount 2.7 x 6 cm).

In the album of Superpol's technical solutions using the manufacturer's materials, Knauf dry floor screed is presented in four options with different composition“pie” design:

Alpha– on even floors or slabs previously leveled with self-leveling flooring, only two layers of gypsum fiber board sheets without film waterproofing are used;
Beta– also on smooth floors, but acoustic (usually sound-absorbing) material is laid under the gypsum fiber panels;
Vega– a system for an uneven base, includes a layer of expanded clay sand, on which two layers of gypsum fiber board sheets are laid;
Gamma– sound insulation is laid under the gypsum fiber boards, then waterproofing film and expanded clay backfill.

Variants of Superpol Knauf pie.

Important! The design of the Knauf Superfloor is floating, so for all of the above options, a damper tape around the perimeter of the walls at the junction points is mandatory.

In practice, laying technology according to the Vega and Gamma options is most often used. Expanded clay backfill is cheaper than self-leveling flooring; in addition to leveling the floor, it additionally improves the acoustic properties of floor slabs:

Technology Supergender	Number of layers	Airborne noise insulation index R (dBa)	Reduced structural noise index L (dBa)	Structure thickness (cm)
Alpha	2 GVL	24	52	60	2
Beta	2 GVL + porous sound insulator	28	53	55	3 – 5
Vega	2 GVL + expanded clay + polyethylene	36	53	58	4
Gamma	2 GVL + porous sound insulator + polyethylene + expanded clay	60	55	55	5 – 11

Important! If the project includes a heated floor, it is laid ON OVER the dry Knauf screed. Before tiling, the surface of the GVL sheets is puttied with a continuous layer of at least 2 mm thick with special elastic compounds, for example, NivelirSpachtel 415 from Knauf.

Features of dry screed for different floor coverings.

Laying technology

Unlike wet and semi-dry screeds, laying Superfloor is much faster. You can walk on a dry screed already during the installation of gypsum fiber board sheets. This option ensures not only high maintainability of the structure, but also of the communications hidden under it. Boxes and other structures made of plasterboard do not absorb moisture, since there are no wet processes, windows do not fog up, even with poor ventilation.

Floor slabs for Knauf dry screed must be inspected to identify defective areas. The sequence of operations at this stage is as follows:

removing a loose layer of concrete or treating it with special compounds (deep penetration primer);
sealing cracks, joints and seams with putty mixtures as necessary;
dust removal and removal of oil stains;
drying wet areas of concrete.

Important! For Superfloor version Alpha without expanded clay sand, it is necessary to level the slabs with a self-leveling floor.

Horizontal level tapping

For dry Knauf floor screed it is impossible to use the lowering method highest point horizontal level, since the gypsum fiber sheet cannot be brought to zero. Therefore, the rise in the finished floor level will be at least 2 cm at the top point.

Horizontal cutting is done as follows:

a laser level or plane builder is installed in one room so that the beam penetrates the walls of adjacent rooms;
at an arbitrary height, a single line is drawn in all rooms of the cottage/apartment;
the distances from this line to the floor slabs are measured, it is located top point(minimum size based on measurements);
the perimeter of the walls is covered with damper tape, the upper edge of which should be 2 cm above the level of the floor covering;
The top line of the horizontal level is transferred onto the tape using a tape measure, taking into account the specified values of the thickness of the dry screed.

Advice! When using a plane builder, it is not necessary to make a line; all subsequent operations can be performed with the device turned on, focusing on its laser beam.

Waterproofing, insulation and acoustic material

Depending on the acoustic and thermodynamic characteristics of the floor slabs, dry screed may contain different materials. Therefore they are arranged in the following sequence:

sound-absorbing or sound-proofing material directly onto the floor slabs;
polyethylene film with overlapping strips of 15 cm minimum, the edges of which extend onto the walls 2 cm above the level of the floor covering (run under the damper tape), in the absence of acoustic material they cover the ceiling;
thermal insulation - on top of previous layers or one polyethylene film.

Important! There is no need to reinforce dry screeds; the heated floor contours inside them are not used. All risers passing through the ceiling engineering systems wrapped with damper tape.

Filling with expanded clay chips

To reduce labor costs bulk material Compavit is applied to the previous layers of dry screed cake using the following technology:

Important! When using a conventional galvanized profile, marks from the shelves remain in the Compavit layer, which must be additionally leveled. A special Knauf tool allows you to avoid this operation - the guides are laid on top of expanded clay, and the rule has a special profile (cutouts along the edges), so there are no traces of the beacons left.

Laying gypsum fiber sheets

Unlike wet screeds, it is easier for the master to move around the expanded clay by laying several pieces of gypsum fiber board measuring 50 x 50 cm. Therefore, laying the sheet material does not have to start from the corner farthest to the doorway.

Unlike regular sheets GVL manufacturer Knauf produces EP elements - two panels glued together with an offset of 5 cm. Due to the offset, a seam connection is obtained between adjacent rows by default.

The technology for installing the top hard layer of dry screed is as follows:

Important! The manufacturer completes Superpol systems with 3.9 mm self-tapping screws 19 – 45 mm long (100 pieces per box) marked MN.

Nuances of Superpol Knauf

IN ideal dry screed must be installed in all rooms of the home at once. Since in places adjacent to the doorway, expanded clay will spill out from under the gypsum fiber board sheets. However, in practice, Superfloor is installed in separate rooms, so the following technique is used:

Thus, the bulk material is completely limited by the rigid box and cannot spill out from under the top layer.

Important! It is prohibited to rest even light partitions on the Knauf Superfloor, so they must be erected before installing the dry screed.

Thus, the Knauf dry screed is a fully equipped system with detailed instructions by editing in album standard solutions manufacturer. However, you can make the structure yourself from ordinary gypsum fiber board sheets without special tools.

Advice! If you need repairmen, there is a very convenient service for selecting them. Just submit in the form below detailed description work that needs to be done and you will receive offers with prices from construction teams and companies by email. You can see reviews about each of them and photographs with examples of work. It's FREE and there's no obligation.

A method based on screed made from mortar (cement-sand) and bulk screed using prefabricated structures. The second method is used less frequently, but is more economical in production. Let's consider a method for installing a bulk floor using products from the leader in this market - the German company Knauf.

Products of the company "Knauf"

This German company is widely known in the market and has been distinguished for many years by the excellent quality of its building materials. The list of its products includes plasterboard and hypo-fiber sheets, liquid construction mixtures. Knauf loose floors are especially widespread in our country.

Knauf floors, floor elements

Products in this segment include “Knauf”-supersheet (regular and moisture-resistant) and Gypsum-fiber “Knauf”-supersheet - this is a high-quality, environmentally friendly and fireproof material. Has good sound and heat insulating properties. Sheet dimensions 250x120, thickness 1 or 1.25 cm. Used as a compensating layer for backfill thickness less than 15 cm, if Knauf floors are made.

Floor elements are made from moisture-resistant Knauf supersheets. In this case, two sheets with dimensions of 120x60x1 cm are glued together. The result is a floor element 1200x600x20mm "Knauf" - a sheet with folds along the entire perimeter 5 cm wide.
The Knauf floor structure consists of a layer of film, a layer of expanded clay and the actual floor elements. Carrying out floor installation work has the following advantages:

Short terms;
. exclusion of “dirty” work;
. the resulting perfectly level floor base with convenient placement all communications.

For laying Knauf flooring, not only a flat surface is suitable, but also an uneven base with defects covered with a layer of filling.

Advantages of Knauf floors

Ideal levelness of the floor base.
. Hypoallergenic materials.
. No creaks or breaks during the entire period of its operation.
. The floor is ready for use immediately after installation.
. Excellent sound insulation (compared to cement screed or self-leveling floors);
. It is impossible to flood the neighbors, since no water is used during operation.
. Low thermal conductivity of Knauf floors.
. High speed of work completion.
. Possibility of alternating installation of floors in different rooms on the same level.
. Possibility of installing any floor covering (for example, parquet).
. Possibility of installing electric heated floors (water heated floors cannot be installed).

DIY floor installation

There is no problem in installing Knauf floors yourself. Floor elements, necessary materials and tools need to be purchased and simple instructions step by step:

Prepare the surface;
. lay a vapor and moisture insulation layer and a sound insulation layer;
. fill in expanded clay;
. lay the Knauf floor elements, their installation is quite simple, just secure with self-tapping screws and glue;
. complete the finishing

Laying Knauf floor elements

When preparing the surface, if repairs are being made, old coating, dust and construction waste, seal all cracks and holes in the base with alabaster or gypsum mortar. If there are wires, they must be placed in a corrugation and pressed to the floor (the layer of expanded clay above the corrugation must exceed 2 cm).

When installing a vapor and moisture insulation layer, using a level, you need to mark the top level of expanded clay backfill on the walls (from two to six centimeters, depending on the unevenness of the base) plus 2 cm for the thickness of the floor elements. A film (with an overlap of more than 20 cm) is laid on the base of the floor, extending above the specified level, and secured with construction tape. For concrete base it is better to use (you can plastic film 200 microns), for wood - bitumen paper or glassine.

When installing sound insulation around the perimeter of the entire room, sound-heat-insulating material 1 cm thick and 10 cm wide, self-adhesive or simple, secured with ordinary tape, is attached along the walls.

When filling in expanded clay, the main thing is to properly level the surface of the layer and avoid the formation of voids. To do this, profiles are first arranged parallel to each other with a pitch of no more than 150 cm at the previously noted height according to the marks on the walls. The required height is obtained by placing planks or remnants of slabs under them. To ensure the stability of the profiles, their support points must be located at least 70 cm apart. If the expanded clay layer is more than 6 cm, then an additional layer of slabs must be laid. After leveling the layer as a rule, the profile is removed along with the supports, and the remaining voids are filled with expanded clay, leveled, and the entire layer is compacted. You should move along the laid layer by placing squares of plywood sheets under your feet.

If the base surface is flat, use sheets of extruded polystyrene foam or other materials instead. thermal insulation materials with laying edge strip along the walls.

We are finishing installing Knauf floors. It is better to lay floor elements away from the door. When laying the first row, the folds of the sheets adjacent to the walls are cut off. Subsequent rows are laid with offset joints. In this case, the folds are glued and secured with self-tapping screws 15 cm from each other.