Chipboard grooved for the floor: moisture resistant, laminated

Moisture-resistant chipboard for flooring in the construction market appeared relatively recently and gained popularity due to moisture resistance and strength indicators, which made it possible to use the product in a humid environment, and the tongue-and-groove connection simplified the installation of plates.

The panel is used for the decoration of walls, ceilings and floors during internal restoration works when facing the external walls of buildings and at the base of the roof. The manufacturability of the slab has so simplified the assembly of products that the installation of flooring from panels is carried out by workers without experience in construction.

Properties and use of moisture resistant chipboard

The basis of moisture-resistant chipboard is hardwood: alder, aspen, birch and thermosetting binders with the addition of paraffin. Wood pulp in the slab consists of a layer of fine and coarse fractions, which made it possible to balance the weight of the slab, and the addition of paraffin to increase the moisture resistance of the product.

The tongue-and-groove locks allow to avoid docking gap during installation

The prepared mixture is hot pressed into plates on which grooved locks are cut from four sides. Due to these changes in manufacturing technology, chipboard moisture-proof, grooved for the floor has gained a number of advantages:

1. Increased density - the plate has become stiff, and the surface is smooth without flaws. On the basis of moisture-resistant chipboard, floor coverings of laminate, linoleum, floor board, and parquet are offered by the market.
2. The spike-groove lock allowed us to get rid of the docking gap between the plates, making the coating monolithic. Sound and thermal insulation of the base has improved.
3. Due to the tongue-and-groove connection of the plates, the installation of the flooring was simplified, eliminating geometric deviations when laying the panels. Reduced build time.
4. The tongue-and-groove connection of the plates evenly distributed the load on the entire assembled surface, eliminating the deflection at the joints of the panels.
5. Moisture-resistant building boards are used in the exterior decoration of buildings in unheated rooms with high humidity.

Chipboard installation on floor beams is carried out without a concrete base.

Characteristic of moisture-resistant chipboard

In order not to make a mistake when choosing a moisture-resistant plate, we study the characteristics of the products. For boards with increased moisture resistance, the density is up to 820 kg / m 3, and the panel color is greenish due to moisture-resistant polymers added to the mixture.

In order to lay the draft floor from moisture-resistant chipboard without defects, it is important to treat the preparation of the foundation professionally.

The base structure must be strong, and the flooring surface horizontal, on which the operations of the technological process of assembling the floor from the panels are sequentially performed.

Moisture-resistant chipboard on concrete floor

The foundation device from chipboard begins with a diagram of the assembly of moisture-resistant boards on the floor. The dimensions of the room are determined and the number of products is calculated taking into account the dimensions of the selected panel.

In the drawing, the plates are staggered, between the walls of the room and the subfloor, a compensating gap of 1.5 cm is left. The panels that need to be cut are marked.

Particleboard can also be laid on a wooden base

To lay the rough coating of the grooved chipboard for the floor, we prepare the concrete base. We place beacons on the floor area and fill the screed from the concrete mixture. Check the horizontal surface of the concrete base, using the rule with the level. Deviation should not exceed 2 mm. We apply a primer penetrating the concrete onto a dried screed to protect the subfloor from dampness and mold.

After the primer, we lay a plastic film on the surface of the base, close the joints of the rows of the film with tape. The film protects the flooring from moisture in concrete. To level the surface of the base, we lay a foil substrate under the flooring from the plates with the foil towards the floor covering.

The foil substrate retains heat in the flooring of the slabs and does not allow moisture from concrete to the subfloor.

At the end of work with a concrete base, we install a waterproof flooring made of chipboard using a floating floor technology without rigid fastening to the surface. According to the scheme, the plates are stacked from the wall opposite the entrance to the room. Before installing the flooring, the tongue-and-groove locks on the plates are covered with waterproof glue. The first row is laid along the wall with a gap of 1.5 cm and is compressed by wedges installed between the wall and the flooring. Read more about laying material on concrete in this video:

The second row lies with an offset of half the sheet so that the joints in the rows do not match. At the beginning and end of the row, half the sheets are inserted, their ends after sawing are covered with mastic or adhesive.

Further installation of the panels is carried out in a checkerboard pattern.

The last row, if indicated in the diagram, is cut to length to fit snugly against the wall.

The assembled coating is compressed on four sides by wedges until the glue dries, then the wedges are removed and the compensation gap is closed by a skirting board.

The baseboard is attached to the walls so that when the humidity and temperature change and when the coating moves, it cannot be damaged. After assembly, the moisture-resistant chipboard floor is coated with varnish or varnish.

Moisture-resistant chipboard on logs

Before assembling on the lags of the flooring from moisture-resistant panels, we draw up a plan - a layout of the lag and sheets of the product. The scheme provides for the joining of plates on the logs so that there is no sagging of the flooring in these places. When installing the rough coating on the logs, we insulate the mounted floor.

So that the dampness from the concrete floor does not get into the insulation, we cover the concrete base with a waterproofing film. We install beams on the film according to the project drawing, so that when laying the plates, the joints fall on the logs. Between the lags we insert jumpers for the rigidity of the frame. We fasten jumpers to logs through assembly metal corners with self-tapping screws.

For strength, glue is applied to the joints

We check the assembled structure with a laser level for horizontalness, so that the chipboard coating does not have deviations.

The frame structure between the lags is filled with a stone wool insulation.

We put a vapor barrier film on the frame with insulation and fix it with staples to the lags and jumpers.

Before proceeding with the installation of the panels, the tongue-and-groove connection on the plates is coated with mastic or PVA glue.

The first row is laid along the wall with a gap of 1.5 cm, the joints of the products are placed on the logs, the plates for the logs are fixed with screws. 2 row is laid with an offset by the distance between the lags, so that the joints of the panels in the rows do not coincide. The first panel in row 2 is shortened by the offset distance. Further, all rows of panels are staggered. For more information about the flooring on the logs, see this video:

If the assembly of the flooring from the plates is carried out on the logs left from the old dismantled coating, between which the distance exceeds 40 cm, then before installing the flooring we lay the crate from a dry edged board 50 mm thick.

We install the crate on the logs in increments of not more than 40 cm and fix it with screws. Under the crate there remains a heater located between the lags, covered with films.

On the installed crate, we collect the flooring from the plates and fix it with screws.

Moisture-resistant chipboard on a wooden base

Moisture-resistant chipboard is used on a wooden floor both as a finishing floor and as a substrate for flooring from laminate, linoleum, parquet, and floor battens. Before installing products from particleboard, we prepare a wooden base.

We open the floor boards and check the logs for the absence of rot, wormholes, cover the beams with an antiseptic solution. We tighten the floor slats of the old coating with wedges to remove the cracks between them. We fix the slats to the logs with self-tapping screws, pressing the edges of the warped boards.

Extend the coating, remove bumps and old paint. We check with a laser level the horizontal surface of the wooden base. To close the gaps, we use silicone sealant, apply a primer to the surface of the wooden floor so that dampness and mold do not appear.

We lay a jute substrate on a wooden base to level the surface of the coating and maintain air exchange between the flooring from the slabs and the subfloor. The assembly of moisture-resistant chipboard for the floor on a prepared wooden base is carried out according to a scheme similar to a laid coating of slabs on a concrete base. About how to lay moisture-resistant chipboard on a wooden floor, see this video:

The use of moisture-resistant chipboard and the versatility of the slabs simplified the finishing work at the facilities under construction and under repair. It became possible to use cheap material for the exterior decoration of buildings.

What is grooved chipboard, its types and properties

Chipboard - wood chipboard. This is a sheet of building and / or finishing material, which is made from wood chips of a certain size. An astringent - glue is added to the chips, a plate is formed from the mixture, which is then dried. Particleboard may consist of one, two, three or more layers, in which the chips are located in different directions. The layered structure is visible at the edge. It makes the material more durable and resistant to deformation.

Particleboard moisture-proof sheet pile on the floor as a topcoat

The tongue-and-groove chipboard has a spike and groove formed along the edge. If ordinary material is joined “end-to-end” - just close to each other, then the sheet pile forms a monolithic (almost) coating, since the spike of one element fits into the groove of the other. When a load occurs on any of the sheets, it is redistributed over the entire surface. This is true for the floor - it turns out a more reliable and rigid coating. It is easy to recognize the grooved chipboard “in the face”, since the groove and tenon can not be confused with a smooth edge. And in the marking, the letter Sh is added to the standard abbreviation at the end. That is, the material is called DSPS. The thickness of the grooved chipboard is 12 mm, 16 mm, 18 mm, 22 mm.

To make the floor from chipboard more convenient and faster from sheet piling

The material is perfectly cut with a jigsaw, but you can also use a regular hacksaw on wood. When unloading and carrying, you need to be careful - corners are easily chipped. After all, there is a spike / groove, the thickness is small, so it is easy to chip. Only wear together - the weight of a long sheet is 24 kg.

Chipboard moisture resistant sheet pile

Moisture may be present in the floor structure, therefore it is preferred to use moisture resistant materials. There is such a variety in chipboards. The composition is added with special substances that increase resistance to moisture. Moisture-resistant chipboard is also distinguished by marking: first there is the letter B, which means moisture resistance. That is, the material is called VDPSH. It is he who is usually used for the floor, since no one can be 100% sure of the absence of moisture.

Chipboard floor moisture-proof boards can be distinguished by a greenish color. The dye is specially introduced into the composition

But here we must take into account that chipboard moisture-proof sheet pile varies in the degree of tolerance to humidity. This parameter is indicated in the technical specifications. It may also be indicated in the specification, but then it is indicated by the Latin letter P and the number from 1 to 6. The larger the number, the better the material tolerates high humidity. For the floor, it is better to take the WPSFS category P5 (optimally) or P6.

But do not confuse moisture resistance with water resistance. Moisture resistance is the ability of a material to tolerate periodic increase and normalization of moisture, without changing its size too much and not changing its shape. The higher this parameter (figure), the better the chipboard tolerates increased humidity. But if you dip it in water, nothing good will come of it, because tolerance of "flooding" requires water resistance. And this is another. So do not confuse these two properties. Moisture resistance is usually sufficient for use in floor constructions.

LVSPSP - laminated material

Moisture-resistant sheet pile is often used for flooring, as a base for flooring. The plates are polished, almost ready for decoration - this is quite convenient. But there is even more convenient material - laminated VDSPSH. The front surface of this plate is pasted over with paper printed on it, covered with a protective polymer film on top. It turns out something similar to a laminate, but on a more rigid basis. Such plates can be laid immediately on the logs, on a concrete slab or on a heater, the bases do not require (with a sufficient thickness of the plate).

LVSPSP is the same moisture-resistant chipboard with a decorative coating

The disadvantage of laminated particle board is a small number of colors. If you use a sealant when connecting, you get a surface that is not afraid of water. If your requirements for aesthetics are not too high, laminated sheet piling can also be placed in living rooms. And for loggias, balconies - this is generally a great option. It is mounted quickly, and immediately we get a final coating.

Chipboard flooring types

Moisture-resistant sheet pile can be used in any floor construction as a finishing floor or rough + finishing. That is, from chipboard you can do:

• gender on lags,
• floating floor:
  • on a heater (expanded polystyrene),
  • on a concrete slab.
• on a draft basis.

  Most often, chipboard moisture-proof sheet pile for the floor is laid on the lags

If a moisture-proof sheet pile is laid on logs, then the less logs are installed, the thicker the plate should be:

• logs stand at a distance of 60 cm, VDPSH is required with a thickness of 22 mm,
• for plates with a thickness of 18 mm, the maximum installation step of the lag is 40 cm.

In stores, grooved chipboard for 22 mm thick floors is not always easy to find. The way out is to lay the rails of the counter-lattice perpendicularly on the logs, and already lay the plates on them. When laying on the logs under the chipboard, it is better to lay the gaskets so that the floor does not creak. When laying on a concrete base, if the surface is too uneven, it is better to repair unevenness. If this is not possible, it is possible to level it with building sand, and already lay chipboard on it. If you add a heater of sufficient density to the structure, you will also get an insulated floating floor.

Mounting Features

The first thing you need to pay attention to is where is the front side. In a grooved chipboard, one side of the groove is shorter - this will be the front side. That is, we put the sheet so that the long part of the tongue is below - so it will turn out to dock without cracks. The first sheet can be turned to the wall with a spike or a groove - it does not matter. But it’s easier to insert a groove into the spike, and so we deploy the spike to the wall. Accordingly, a groove is looking "into the room", and a spike will be inserted into it.

Another important point. Installation is preferably carried out at the humidity and temperature at which the floors will be operated. If you mount in cold weather, it is better to leave cracks of several millimeters, since in spring or summer in wet, warm weather, the material will expand. Particleboard expansion coefficient is much lower than that of wood, but it is still worth considering. At VDSP it is even lower. That is why we say that during the installation of moisture-proof sheet pile chipboard expansion can be neglected.But before starting the installation, it is necessary to allow the material to mature in the room for 5-7 days. During this time, the material will take the desired moisture content and this will help to avoid raising joints due to thermal or moisture expansion.

How to put a chipboard on a heater or concrete slab

In the design of the floating chipboard floor, the moisture-proof sheet pile is laid in two layers with a spacing of seams. In addition to the displacement of the seams in the first layer, the seams of the second layer should be above the plane, and not above the joint. If insulation boards are laid under the chipboard, then you must also ensure that their joints are not located one above the other. It is easier to implement this if the insulation and particleboard are laid perpendicularly or at an angle. If the insulation is polystyrene foam, between it and the grooved chipboard it is necessary to lay the substrate so that there are no extraneous sounds during operation.

To make the floor of the chipboard really warm, we have all the seams offset

Particleboard moisture-proof grooved on the insulation does not fit closely, but with a temperature gap of 1 cm per meter length. Also around the perimeter of the walls leave a compensation gap. When used in the design of a floating floor, the chipboard is only glued. In this case, the glue layer should be thick. And to unite the surface, wedges are driven into the gap near the walls, which are left until the glue dries, then they are removed. If the area is large, we divide it into zones, arranging expansion joints.

Preparation for laying the topcoat

Although they say that the plates are standardized, there are differences in thickness. It is best to take all the material at once from one batch. Then less likely to get swings. But, most often, small “steps” are formed at the joints - 0.5-1 mm. If this is critical - prepare the floor for painting, then we pass the seams with a grinder, then putty. Before grinding, we check whether all the hats are recessed. Then we putty seams and traces of self-tapping screws. You can use any putty on wood. After drying, grinding again - to a flat surface. After you can paint.

Do-it-yourself flooring from particleboard: the installation process is simple

No matter how you align the seams, the moisture-resistant sheet pile does not give a 100% level floor. Under the paint layer the compounds are visible. If carefully aligned, the seams are more difficult to determine, but still not perfect. Therefore, it is better to lay a chipboard moisture-proof sheet pile on the floor if you plan to lay a laminate, linoleum, parquet, parquet / engineering board. Even vinyl tiles will be fine.

QuickDeck

A lot of companies produce chipboard. The most famous brand is Quick Deck (Quick Dec). They developed a special form of tongue and groove - chipboard plates of this brand do not have to be joined to the support, they are remarkably connected simply with glue. But the mandatory fixation with screws on the lags remains - at the junction or without.

Quick Deck Floor Panels - Views and Features

The manufacturer of QuickDeck floor tiles declares that the dimensions match perfectly and there can be no problems connecting. The realities are such that there are differences anyway. There are small steps between the plates and it is not always possible to achieve snug fit without gaps. But surface quality, invariable form and characteristics during operation, ease of installation - this is for sure. The stuff is good. And such an assessment was received by both simply polished QuickDeck chipboard and laminated boards. The Japanese company Naomi also has laminated ones.

How to impregnate chipboard for moisture resistance

The budget at the construction site only at first seems big. When it comes to interior decoration, it turns out he is too small. Therefore, we are looking for any ways to reduce the cost. As an option - it is possible to make moisture resistant from ordinary chipboard. Do not think that it will also tolerate moisture well, like the one that was originally made waterproof. But, definitely, better than usual.

If you need to save, you can increase the moisture resistance of conventional chipboard

So, what can be treated with chipboard to increase water resistance:

• drying oil in several layers,
• PVA
• varnish (combined, bituminous, wax-resin),
• any waterproofing agent compatible with wood,
• floor paint
• wood impregnation.

In general, practically the same means can be used as for wood. After all, chipboard consists of sawdust and shavings. But any composition should not be oiled, but soaked. And not just once, but at least two. And from all sides. Pay special attention to the spikes and grooves. In general, work will increase.

Advantages and disadvantages

The advantages of a grooved chipboard are several:

• moisture resistance
• safety - paraffin resins are used as a binder, and they are harmless, at the same time give increased resistance to moisture,
• easy and quick installation,
• the absence of differences in height at the joints (in fact, plates from different lots may have deviations),
• the resulting surface is monolithic, that is, the load is redistributed, which increases the reliability and rigidity of the structure,
• the floor from the grooved chipboard does not creak.

Manufacturers declare that the surface does not require treatment before using the topcoat. If linoleum or laminate is used, it is. But for wallpaper and, especially, for painting, putty is necessary: ​​the seams under these types of finishes are still visible.

Installation of grooved chipboard on the floor - the most common application

The disadvantages include the high price, and not always the ideal geometry. It’s not enough when there is an exact coincidence of the seams. In any case, in all the reviews it is said that under painting or wallpaper, the walls / floor were putty.

This is not about sizes, but about varieties of grooved boards. This material is available in three forms:

Just a grooved chipboard. Moisture-resistant chipboard with molded grooves and spikes. It is usually called QUICK DECK or QUICK DECK Professional.

QUICK DECK Professional boards

This is a version with a protective film.

With laminate (there are other shades)

There is a solution for any occasion. The last two options, in some cases, are more convenient, although they are more expensive. But they save time. For example, immediately after installing each row of plates on the floor, they can be covered with a film, fixing it to the walls with tape. But this option does not guarantee that dust and debris will not get under the film. She can also move. The film glued to the surface in this sense is more reliable.

As for the laminated tongue-and-groove chipboard, this option is more expensive than a set of chipboard + laminate. But, if you add the cost of an additional substrate, the time for installation, then this difference does not seem so big. On the other hand, the choice of colors is far from as wide as that of a conventional laminate. In general, the choice will have to be made based on your own preferences.

Dimensions

Sheet piled chipboards are produced in the form of long and narrow sheets - this facilitates installation. The width of the material is mainly 600 mm, there are 900 mm, albeit in a smaller variety.

Chipboard sheet pile sizes

Plate thickness: 12, 16, 22, 38 mm. Twelve millimeters are usually used for sewing the ceiling and walls. Sometimes, when laying on a solid foundation or with often located lags, it can be laid on the floor. For lags, it is often recommended to put 16 mm or 22 mm. The distance between the supports can be up to 60 cm.

In the lags

To install the floor on the logs, it is required to lay a layer of waterproofing under them. Any waterproofing material can be used - even a plastic film, but better - something more durable and modern. Lay strips with approaching one another at least 10-15 cm. It is advisable to glue joints at the joints with mastic or double-sided tape. Another point: waterproofing is made on the walls and fixed. It should be no lower than the rough floor.

Logs are made of timber not less than 50 mm thick. The installation step depends on the thickness of the grooved chipboard used. For plates with a thickness of 16 mm, the recommended pitch is 305 mm, for 22 mm - 610 mm. So for sure - so that the joint of two plates fell on the beam.

Lags should be set often

If it is required to simultaneously improve heat and sound insulation, the space between the lags is filled with materials with suitable characteristics. Further, it is already possible to lay sheet pile chipboard. Lay them with their long side perpendicular to the lags (across the lag).

There is another option that allows you to save on a log for logs: to make the installation step of the log longer, a black floor on them, and on top of it, already lay tongue-and-groove wood-particle boards. But the surface of the subfloor should not have significant protrusions. Otherwise, the plates will not lie down and will swing.

If the logs are already installed with a larger pitch than recommended, the manufacturer recommends to lay the crate with the required pitch, using a board no narrower than 25 mm (see video below).

Expanded clay

It is possible to lay tongue-and-groove chipboard on expanded clay. This method is not as warm as the previous one. Modern thermal insulation materials better protect against the penetration of cold. But the floating floor on expanded clay is cheaper at times. Only you must be sure that your floor will be dry. Otherwise, despite the water resistance, the material may swell and lose its properties.

Expanded clay floating flooring

Work begins in the same way as when installing the floor on the logs: we spread and fasten the waterproofing on the walls. Then expanded clay chips with a fraction of not more than 5 mm are poured, leveled into a level. Expanded clay is laid another layer of waterproofing. When laying, one strip is brought into another by at least 20 cm and well glued. Chipboard with the selected groove and tongue can already be laid on this substrate.

For concrete

If it is necessary to insulate or level the concrete floor, this can be done using the grooved chipboard. According to the recommendations of the manufacturer, it is necessary to lay the plates on a flat base. To do this, too large protrusions need to be squeezed, significant cavities to gloss over. If the irregularities are too global, it is better to fill with a self-leveling concrete or polymer composition. After it dries, the grooved chipboard will lie down without problems.

On a flat concrete base

If there are irregularities, but they are not global - up to 5 mm per meter - you can put a substrate under the laminate flooring under the laminate, one of which is thicker. You can use other similar foam material. If you want to improve the thermal insulation characteristics at the same time, it can be foil material (with foil towards the room) or polystyrene - high density polyurethane foam (at least 350 g / m³). Above you can already lay the slabs.

Rules for laying and fixing

Plates on the logs are laid across: the long side perpendicular to the logs. Start laying from the wall farthest from the entrance. A clearance of 8-10 mm should be left from the walls. It is needed so that impact noises are not transmitted through building materials. To withstand this gap, between the wall and the plate, gaskets of the required size are installed, the plate is abutted in them. After installation, the gaskets are removed.

Do not forget about the gap from the wall - otherwise shock noise will be heard too “loudly”

Location Rules

Plates are laid with a spike to themselves. First, lay out a row along the wall, then move on to the second. At the beginning of the second row, you can use the trim from the last plate from the first row. If there is no cropping or it is too small, the second row begins with a half - so the matching of seams is avoided. The next row begins with a whole plate or with a trim of a different size - vertical joints should be spaced at least 30 cm apart.

It is necessary to make sure that the vertical seams do not match

Before joining the plates, the groove (it’s more convenient) is coated with PVA glue. Smearing with a brush every time is uncomfortable and long. It’s easier if the glue is poured into a bottle with a long spout. In the spike greased with glue, the groove of another plate is inserted. To achieve a minimum clearance, you can use a rubber mallet and a trim with a spike from some board. This piece is inserted into the installed plate, knock on it with a mallet, pushing the plates close. Having achieved the desired position, they take self-tapping screws, a screwdriver and fix the installed sheet. Screws are screwed along the perimeter with a pitch of 15-20 cm, inside the lags, the step of installing screws is 25-30 cm. So, gradually, a flooring from grooved chipboard is mounted.

Some little things

It is better to take self-tapping screws black "on wood" with a large flat hat. To make the surface even, drill holes of a slightly larger diameter under the caps before installation than the caps (countersink). After twisting the screws, the recesses are coated with putty on wood. After drying, using sandpaper with fine grain, level the surface completely.

It is necessary to maintain a clearance from all walls

To ensure complete tightness, the joints can be wiped with a compound that is used to seal the joints of ceramic tiles.

Finishing work on mounted tongue-and-groove chipboard

Manufacturers claim that Quick Dec does not need putty. On it you can immediately glue wallpaper, paint, lay tiles, apply decorative plaster. As for the plaster and tile, it is. Only pre-treatment with impregnation is needed - for better adhesion. For tiles, you need to use good glue.

All the same, you have to putty, even though the amount of work is incomparable ...

For thin or smooth wallpapers, and especially for painting, it is necessary to close the seams. They are still visible. Under some types of wallpaper, the seams may not stand out, but you will definitely have to putty under the paint.

Reviews

Although quite a lot of time has passed since the day this material appeared on the market, there are very few reviews about tongued-and-groove chipboard. Based on the fact that people who are satisfied with everything are not too eager to write something, but just live quietly for themselves, then this is probably not bad. So the material meets most expectations, and sellers' promises do not differ too much from the real state of things.

Having re-read about five forums where the topic of how good or badly grooved chipboard was discussed, we can draw the following conclusions:

• Laying is really simple and fast, only the plates should be placed with the right side up: the one with which the spike is slightly sloping, which makes it shorter.
• Some, when laying QwickDeck on the logs, the joints were not glued, the plates were not fixed in any way. With this installation method, it is advised to leave a gap between the plates of 1-2 mm. Those who laid tightly, in the spring, the seams rose. I had to sort through a new one, in some places leveling the edges too swollen with a grinder.

A grooved chipboard plate up to 22 mm thick requires a support pitch of less than 60 cm. If the logs are installed with this pitch or more, a crate is needed

For hemming the rules are similar.

To summarize, the feedback from those who fully complied with the recommendations is positive. Echo of the floor and imperfect geometry is a reality. As, however, and the different quality of sheet pile chipboards at one point of sale.

What is a dowel chipboard

Chipboard (or the exact name of ДСтП) with a tongue and groove is a building chipboard material from wood chips, which has grooves on one side of the plate and protrusions on the other, so that even one person can easily fasten them together. To increase the moisture resistance of wood, in the production of such boards, wood chips are pressed and impregnated with a special resin. As a result, even immersed in water for a day, such a plate absorbs moisture and swells by only 10%.

At the same time, in the process of hot pressing, this material acquires high density and strength, therefore sheet pile chipboard is especially often used for leveling and rough finishing of the floor.

To enhance the effect of resistance to environmental conditions, they also produce a laminated, moisture-resistant sheet pile chipboard: a special film is applied to sheets of the first grade (without visible surface defects). At the same time, product quality indicators increase many times.

Benefits

Consider the advantages of moisture resistant sheet pile chipboard in more detail:

• The increased density (820 kg / m3) provides rigidity and strength of structures made of particle board (can be installed on logs - a special material structure allows you to effectively distribute the load across the entire floor surface),
• The chipboard processing process in production allows achieving a perfectly flat surface of the plate,
• Simplicity and ease of installation, dismantling, replacement of the entire structure or its parts, due to the system of protrusions and grooves, as well as the small size and weight of the plate itself,
• Increased resistance to humidity, dampness, temperature changes, adverse climate, as well as fungi, mold, microorganisms,
• Thermo / sound insulation,
• Low price (compared to similar building materials),
• Possibility to use dismantled boards repeatedly.

Disadvantages

In order to eliminate undesirable consequences in the future, it is worthwhile to carefully consider the disadvantages of chipboards:

• Purely aesthetically pleasing, the appearance resembles little wood, so it is recommended to use it in rough finish, as well as for hidden interior work
• The use of various formaldehyde resins for impregnation can be toxic, therefore, acquiring a moisture-resistant type of particleboard, you should familiarize yourself with the instruction manual: is it allowed to use it in residential premises or for the manufacture of furniture (the manufacturer indicates the amount of harmful substances in the chipboard on the label),
• If the resin content is low, additional isolation from environmental conditions is required,
• Not suitable for curved surfaces.

Where to apply

The use of moisture-proof sheet pile DSTP is especially effective for:

• Alignment of walls for finishing (wallpaper, plastic panels, wall paneling made of wood and PVC, laminate, board, etc.), creating interior partitions,
• Aligning the ceiling for finishing, as well as using chipboards instead of drywall to create a suspended ceiling,
• Leveling the floor for finishing (laminate, parquet, linoleum, etc.), assembly of the rough floor, installation of the "floating" floor,
• Heat / sound insulation of the ceiling, floor, walls.

Installation of the subfloor

The rough floor (or dry screed) is the base on which the main floor covering will subsequently be mounted. With the help of tongue-and-groove moisture-resistant chipboard boards, installation of the rough floor can easily be done by yourself.

Below is a detailed description of how to properly install a moisture-proof tongue-and-groove chipboard and make a rough floor.

1. Wooden logs are laid on a concrete base with gaps between them, depending on the thickness of the chipboard sheet (30-40 cm with a thickness of 16 mm and 40-60 cm with a thickness of 22 mm). If the floor is uneven, then all the gaps are filled with sand or slag. Also, you need to leave a gap of 2 cm near the walls,
2. If additional thermal insulation is needed (a private house or an apartment on the first floor, etc.), then foam or any other insulation is placed between the lags, while a vapor / waterproofing film is placed under the bars on the concrete,
3. The construction level checks the evenness of the laying and the horizontal of the floors. Further, the floor surface is covered with special plastic or paper, to prevent squeaking during walking and further operation,
4. The sheets of chipboard are stacked starting from the far corner of the room. Having laid the first sheet, it is fixed with self-tapping screws - first the central part, and then - with a fastening step of about 20 cm. The screws are screwed deeply - the caps should be recessed in the plate at least a millimeter,
5. For better sealing of joints, joints of grooves-fasteners are coated with PVA glue or latex building mastic,
6. Then, the next sheet is pressed tightly against the first sheet. Usually, special bars for fitting, with the same fastenings, are supplied with the chipboard, so as not to damage the main material. Thus, all sheets are adjusted and fastened (it is desirable that the seam passes over the lags). If the subfloor is made for a narrow corridor, then the wooden frame of the bars should be located across the movement,
7. If there are vertical irregularities, then they need to be cleaned and sanded. After that, you can lay parquet, laminate, or do any other fine finishing of the floor.

Laying the "floating floor"

“Floating floor” is the best way to finish floors with strong irregularities or other gross surface errors.

The moisture-proof sheet pile dowel plate is laid on the floor according to the following technology:

1. If the main floor is concrete, then, first, a vapor barrier film is placed on it, if the base is wooden, then glassine,
2. Then, expanded clay or slag is poured, and leveled,
3. On expanded clay lay construction paper,
4. Wedges are installed near the wall from which the installation begins.
5. Also, as in the assembly of the rough floor, the installation of particleboard boards is done "by itself" - from the far wall, the joints are fixed with PVA glue or latex mastic,
6. A gap of 1 cm should remain between the wall and the sheets.

Wall and ceiling mounting

A moisture-resistant tongue-and-groove chipboard plate is mounted on the wall using self-tapping screws at intervals of 300-400 mm, while an additional crate is not required. If fastened with nails, they are nailed up at an angle of 45 degrees from the edge to the middle.

For the ceiling, plates with a thickness of 1.2 cm are used. First, a special frame of racks is mounted on the ceiling, to which, after, sheets of chipboard (screws, nails, brackets) are attached.

As with the arrangement of floors, the places of fastening of the plates are sealed with PVA glue or latex mastic.

Having considered the main characteristics, prices and application of wood-shaved sheeted tongue-and-groove moisture-resistant boards, let us summarize - this building material has such valuable qualities as: cheapness, lightness, strength, moisture resistance, ease of installation and cost-effectiveness (as it can be used repeatedly), with this time and money is usually minimal. All these advantages make chipboard the most popular material for leveling any surfaces, as well as for mounting walls, partitions, ceilings and, especially, prefinishing floors.