How to cover the seams between plywood sheets on the ceiling? Putty for plywood: how and how to properly align wooden slabs Plywood joints on the floor under linoleum putty

Wooden house is the most environmentally friendly and modern building for housing. It is pleasant and cozy to be in it, however, there are a number of problems that the owners of this building face, for example, gaps in the wooden flooring.

Cracks can occur due to the drying of the tree. The tree dries for 10 years. Deformations of wood in off-season time are possible. In winter, wood swells, and in summer it dries and decreases in size. Visually, this cannot be detected, however, in the microcosm, under a microscope, you can see how the fibers in a tree change over time.

More possible reasons:

Incorrect calculations of builders or incorrect installation floorboards.
Incorrectly prepared wood for operation - low-quality paints and varnishes.
Bad ventilation.
Insufficient floor fit.
The appearance of mice and termites.

All cracks, depending on the size and location, are eliminated, you only need to pick up the right decision. There are many methods to eliminate gaps in wooden floor. Cracks up to 15 cm are filled with sealant. In this case, 2 types of sealant can be used, it is silicone or acrylic sealant on wood. Special sealants for wood differ in color, which allows you to eliminate joints and gaps as imperceptibly as possible.

Sealants have a number of advantages: resistance to moisture, favorable consumption in the process of sealing the gap and long operation after the elimination of defects in the floor.

You can fill the gap with wood putty. The choice can fall on acrylic-based, solvent-based, oil-based or polymeric, water-based. You can putty not only cracks and holes, but also irregularities on plywood or wood, as well as cracks. You can seal the gap with foam. However, it is necessary to eliminate cracks very carefully, without spraying foam. Excess foam can be removed only after it hardens.

Cracks are sealed with polyester paste. There can be both one and two-component options. Suitable for sealing gaps and seams up to 5 cm. Sealing gaps with improvised materials, such as slats, tow with paint, glass wool, grout from paste and paper, sawdust and own preparation of putty, is also relevant.

High-quality sealing of cracks in a wooden floor

Regardless of the size of the gap between the boards in the floor or in the parquet, before eliminating it, it is necessary to make a dry and wet cleaning, clean from dust and clean the place of the gap, allow to dry.

Termination options:

If the gap in the wooden floor is up to 1 cm in size, then it can be sealed with a tourniquet, grout or filled with sealant.
If from 1 cm to 3 cm, then a special putty is well suited.
If the gaps are very big size, then it fits well. polyurethane foam, wedges or slats.

The field of operations performed, it is better to cover the floor with sheets of plywood, the joints of which are also processed and leveled with putty. Small gaps or joints can be covered with putty made from glue and sawdust.

Sawdust is taken in a fine fraction, poured with boiling water and mixed until a homogeneous mass.

After the solution with sawdust has cooled down, PVA glue is added and applied with a spatula in the localization of the gap cleared of dirt and dust. After the surface of the sealed gap has been leveled to the floor level, it must be left for a couple of days so that the mixture can take and dry. After everything has dried out, the irregularities must be treated with an abrasive, and fire protection should be applied, and only then the selected paints and varnishes.

You need to know: how to close a hole from mice

How in countryside, and in urban areas there are mice. If there are any gaps in the houses, then mice can easily enter the living quarters, they will not only harm human health, as they are carriers of leptosperosis, toxocariasis, streptobacillus and many others, which can be fatal, but also harm room, its decoration, can penetrate food.

The most proven options for sealing holes in the wall from mice are:

glass wool embedment;
Eliminate the defect with cement;
Mounting foam also helps well, mice do not gnaw it, and tightly seal the hole.

The advice of experts comes down to broken glass, which are placed in the holes of mice.

How and how to seal the seams between plywood on the floor

On plywood flooring, you can often find seams and joints that need to be repaired. You need to know that the most important thing in choosing a putty is elasticity, since plywood consists of wood veneer, and the tree is subject to seasonal deformations. Over time, the plywood dries out, and the joints become more visible. It is also worth choosing a putty according to the color of the wood, as well as a special one, that is, for wooden material.

For sealing seams, are used:

acrylic putty;
Elastic sealant;
hot glue;
Sawdust with PVA and gypsum;
Epoxy adhesive.

It is worth considering that chipboard, plywood should be well fixed so that they do not walk and do not vibrate, then the selected putty (putty for wooden floors) will not crack and will hold tightly, closing the gap.

These works are also being done for plywood, on which linoleum will subsequently be laid.

It should also be covered with putty or better silicone sealant, dents in plywood and all joints, cracks. Plywood needs to be coated with an antiseptic. Before laying linoleum, it is necessary to pay attention to the evenness of the plywood and its cleanliness.

Types of putties for the floor from the boards

To date, there is a fairly wide selection of putties on wood. Before choosing a putty, you need to decide on the price, scope, type and brand.

Putties are divided into types:

Polymer putty, which is made on a water basis, therefore, does not emit chemicals into the atmosphere. It dries quickly enough, holds well and does not crack.
Oil putty based on water, chalk and oils. It is one of the most reliable, however, after processing the gap, it takes a lot of time for it to dry completely.
Acrylic putty is environmentally friendly and non-flammable, which is very important for wood.
Solvent-based putty ideal for parquet floor covering, however, is not the most environmentally friendly option.
The putty is elastic, which is ideal for “floating” cracks and joints. It keeps its shape perfectly, has good adhesion to the surface.
Pigmented wood putty, that is different colors(white-birch, teak-mahogany, wenge-dark oak, beech-oak). It must be taken into account that often the color does not match the one declared on the package, you should require a demonstration of the goods or a stand with these putties.
Putty for wooden floors, which is used to smooth out irregularities, various defects and cracks.

The main brands of putty manufacturers are Dulux, Parade, Semin, Varathane, Axton, Neomid, Forwood, Rainbow, Tytan, Master's Choice. We must not forget that putties differ in the main types: finishing, leveling, filling, universal, sealing. Putty is applied with a spatula of the selected size, by pressing it into the depth of the gap. After the putty dries, it is necessary to level the surface using abrasive products for wood.

How to close cracks in a wooden floor (video)

When cracks appear, it does not matter, any gap can be repaired with your own hands, and the wooden floor is easy to install and repair.

Plywood is very often used as a base for other types of flooring and as a finish. Since it natural material, which requires the presence of technological gaps during installation, then in without fail the question arises: how to seal the seams between the plywood on the floor?

The answer to this depends on several factors:

the thickness of the gap between the sheets;
specific finishes;
the room itself (humidity, heating, and so on).

Preliminary preparation

Before proceeding directly to the sealing of the seams, they must be prepared. You should start by grinding the joints, because this is the most important. If plywood is finishing or something thin and soft, such as linoleum, will lie on top, all surface defects will be clearly visible.

How to make a plywood floor in an apartment

It is most convenient to minimize the difference at the joints with the help of a grinder, it can also be used to go over other flaws in the material (knots, bumps). This work can be done manually, but it will take much more time.

Another important factor is the fastening of the edges. It must be very rigid, the joints should not “walk”, otherwise not a single putty will hold in them.

Read important material on the topic: what putty to choose for plywood and why?

If plywood is laid on concrete base, then they fix it on glue (here the main thing is not to save on it), when mounting on wooden surface sheets are fastened with self-tapping screws. They are screwed in every 15-20 cm. The extreme rows should be placed as close as possible to the future seams, but so that the sheet does not crack.

Sealing process

Immediately before the putty, the seams must be cleaned of dust and dirt, it is most convenient to do this with a vacuum cleaner. Then the joints are degreased and coated with a primer. The soil should be moisture resistant, and if the room is damp, then preferably with antifungal additives. The putty itself is applied only after the primer has completely dried.

Basic Rules

One of the main selection criteria when sealing joints between plywood on the floor is the elasticity of the putty. No matter how tightly the edges of the plywood sheets are attached, they will still “play” a little, so the dense and hard putty will quickly crack and fly out of the seams.

You should choose not just a putty for woodwork, but a putty for wooden floors. Ordinary may simply not withstand the load.

From the entire range on the market, one of best results showed acrylic putty. In the widest and deepest cracks, it is applied in several stages, each time waiting for the previous layer to dry completely.

Some advise for these purposes to use silicone, but it is not very suitable, as it is too soft and will bulge at the seams.

Elastic sealant, also not a panacea- usually it shrinks a lot, which is why clearly visible depressions form on the seams. This can be avoided by applying it in several layers, waiting for the previous layer to dry and shrink completely, but this is a rather lengthy process. Of the variety of sealants, acrylic is best suited for these purposes.

More expensive option - hot glue. Apply it a little with a margin (so that the seam sticks out). Excess after solidification is cut off with a wallpaper knife. The connection turns out to be quite elastic, but not soft, it also hardens very quickly and practically does not shrink.

The disadvantage of this material is the price and the need to buy a sufficiently powerful (at least 500 watts) hot glue gun.

Hot glue gun for grouting

If interested folk methods what to cover the seams between the plywood on the floor, then there is also no consensus. Some recommend overwriting the seams, mixed with sawdust PVA solution. Others for these purposes suggest using heated to 40 degrees mixture of epoxy resin and wood dust. Third - a mixture of drying oil and building chalk.

Whatever you decide to fill the gaps between the plywood on the floor , the main thing is to observe technological process. In this case, the result will be reliable and durable.

More information in this video.

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Elimination of damage to linoleum

The most common defect in the linoleum coating is considered to be a violation of its integrity. To correct this shortcoming, patches from the same material must be put on linoleum.

Work is carried out in the following sequence. First, you need to lay a piece of new linoleum on the defective area of \u200b\u200bthe floor and try to combine the patterns. Having achieved full alignment, you need a sharply sharpened knife for cutting linoleum, using a metal ruler, to cut through both canvases at once - new and old. If the linoleum is too thick, it may not be possible to simultaneously make cuts on two overlapping panels at once. But in any case, a knife mark will remain on the bottom panel, along which the linoleum can subsequently be cut through.

When cutting a patch, you need to take into account that it is recommended to cut a patch bigger size than the damaged piece. The shape of the patch can be any: rectangular, triangular, round, square, diamond-shaped. If the linoleum flooring has a geometric pattern, it would be wiser to cut out a patch according to a fragment of the pattern so that the junction of the old and new panels is invisible.

The next step in the ongoing work will be the removal of the defective section of the linoleum coating. The base under it must be thoroughly cleaned of the old adhesive, dust and dirt, and then primed with mastic. The primer must dry. Then a thin layer of mastic is applied to the base and back of the patch, and a new piece of linoleum is installed in place and rolled with a rubber roller.

The linoleum patch laid in this way must be loaded through a sheet of plywood or fiberboard with a bag of sand or bricks. The load can be removed only after 2-3 days, when the mastic is completely dry.

Sometimes you have to patch a linoleum flooring that only had the edges glued on. In this case, after removing the defective piece of old linoleum under the edges of the remaining linoleum at the patch location, you need to grease the mastic and press the edges until the glue is completely dry.

The back side of the patch is also covered with mastic, but the adhesive is not applied in a continuous layer, as in the previous case, but only around the perimeter. The patch is smeared with mastic entirely only if it small size. The patch is installed in place and rolled on with a roller. If the patch is only glued around the edges, make sure that all the air from under it is removed, otherwise this small piece of linoleum will soon peel off.

When cutting out a patch, you need to be extremely careful and accurate, then the repaired coating will look beautiful.

How to make a plywood floor. Installation on a concrete screed, logs. Seam sealing

As a result of inaccurate trimming, gaps may form between the edges of the patch and the edges of the undamaged area after the patch has been installed. They need to be sealed in the same way as in the original linoleum flooring.

When laying patches, use the mastic of the same composition as when laying the entire linoleum flooring, otherwise incompatible components of adhesives may react with each other, and all work will go down the drain.

On the minor damage linoleum no need to patch. You can eliminate these defects with the help of putty prepared at home. The formulation of putty may be different.

Putty can be prepared from 20 parts of rosin, 5 parts of alcohol, 4 parts of castor oil and a small amount of dry dye that matches the color of the linoleum coating. Rosin must be crushed and dissolved in alcohol. Castor oil and dye must be added to the resulting composition and mixed thoroughly to obtain a homogeneous mass. Carefully repair small damages in linoleum with the prepared composition using a spatula. Let the putty dry and sand it down.

Putty can also be prepared from 4 parts of thick turpentine, 1 part of crushed rosin and dry dye. The components of the putty must be thoroughly mixed until a homogeneous composition is obtained. Mastic needs to repair small damage in linoleum and carefully smooth them out. After the composition has completely dried, the repaired areas must be cleaned with sandpaper.

The section of the linoleum coating repaired in this way is rubbed with a protective mastic intended for the care of linoleum, or a brilliant emulsion.

General concepts
Practical comparison
Varieties
Negative sides plywood
Preparing for installation
Substrate moisture
Laying plywood on a concrete base
Screed
Laying plywood on logs

Plywood is universal material, it is perfect for making a plywood floor in an apartment with your own hands. The main condition is the observance of the basic rules and nuances, attentiveness and scrupulous approach.

Due to the various areas of use of this material, you can find many varieties of it on the market.

Plywood has a number of advantages:

high strength;
low cost;
environmental friendliness;
ease of installation.

All these factors make the material an excellent solution for various applications.

General concepts

It is worth figuring out how leveling the floor with plywood differs from the material closest in price - chipboard.

Practical comparison

Chipboard is cheaper, but has harmful inclusions in the form of volatile carcinogens.

It is worth conducting several tests to assess the practicality of materials:

The first test will be for flexibility and shape retention. We put a centimeter sheet of plywood on two beams and stand on it. The material will sag for a while, and after we get off it, it will take its previous shape. Chipboard in such a situation will simply crack.

The next test will be moisture resistance. Let's put two materials in water and wait for the changes. Chipboard will very quickly begin to thicken and sag, losing its shape and becoming completely unusable.

The last test will be for fragility.

With the help of a hammer, we will inflict several blows on the materials. The chipboard will crumble, and the plywood will absorb the impact, causing minor dents.

All these positive distinctive features plywood is acquired by the material due to a special manufacturing technology. Plywood is a wood board, the layers of which are glued together. Chipboard is pressed from chips.

All tests passed show that plywood is better than chipboard anyway.

Varieties

In order to lay a plywood floor in an apartment, you can use one of the following types of material with the following marking:

FC- plywood with an adhesive in the form of carbamide resin. It is distinguished by high moisture-repellent characteristics, high strength, environmental friendliness, and can be used to create a fine floor covering.
NS- an unpolished type of plywood in which the layers are glued together using casein glue. Such plywood is the cheapest, but additional sanding may be required after installation.
Ш1– plywood with one-sided grinding. It also contains casein glue. It is best to use such plywood for the subfloor, since it has only one side sanded.
SH2– plywood with double-sided sanding. The layers are glued together with the same casein glue. If such plywood is used in rooms with a normal climate, it can replace FK plywood.

Negative sides of plywood

Plywood, like all wood products, is afraid of moisture.

continuous humidity up to 68%;
periodic humidity, up to 12 hours - no more than 78%;
during laying - no more than 60%.

Before leveling the floor with plywood in the kitchen, bathroom or tub, make sure that the temperature and humidity in them do not exceed the recommended values.

How can I seal the seams between the plywood on the floor?

If the figures are too high, try to use only FC brand plywood.

Preparing for installation

Before attaching plywood to the floor, it is necessary that the material acclimatize.

The acclimatization period is affected by the temperature difference between the old and new environment material stay.

Acclimatization times will be as follows:

almost the same temperature - day;
a difference of 8 degrees - 3 days;
more than 8 degrees -7 days.

Substrate moisture

After the material has acclimatized, you need to check the level of dampness of the place where the floor will be laid. If the humidity is high, then you will need to lay an additional layer in the form of waterproofing.

In order to measure the humidity level, you need to take one square meter polyethylene and spread out on the floor, fixing something heavy in the corners. Leave with the raised central part for a while.

Based on the time after which the drops appeared, one can judge the humidity in the room:

day - a room with such humidity in this moment cannot be used for laying plywood;
3 days - a layer of waterproofing should be laid;

If the floor is concrete, then we lay the film, and on top - a reinforcing mesh and pour the screed. If the floor is made of wood, then all rotten boards must be removed from it. Plywood is laid brand FK.

5 days - installation of plywood can be carried out without restrictions.

Laying plywood on a concrete base

Plywood flooring can be laid on concrete screed or on the lags. In the first case, it is important that the base is very even, and the finishing layer is flexible. See also: "How to fix plywood to concrete floor- styling options.

Screed

Let's describe the sequence of mounting plywood in an apartment directly onto a concrete screed:

First you need to carry out a thorough cleaning, there should be no debris left.
The surface should be opened with bituminous varnish with the addition of kerosene. If there is no such mixture, you can take parquet mastic and add solvent there.

A very important precaution would be to turn off the electricity in the shield for the period of complete ventilation of the room. This will prevent an accidental spark that could ignite combustible fumes.

Plywood sheets should be cut into strips or squares 1250x1250 mm.
Laying is carried out with a 50 percent shift according to the principle of brickwork.
We lay out the sheets on the floor, adjust their size, number them, do not forget about the gap between the plywood on the floor.
If as finish coating linoleum will protrude, then before sealing the seams between the plywood on the floor, it can be glued directly to the concrete floor using bustilat. Get a floating floor without mounting slots. If the question arose about how to seal the seams in plywood on the floor, then you can use acrylic non-shrink putty for wooden floors.
If an oak coating is to be laid, then plywood must be laid with the addition of mounting slots:

First you need to attach the sheet to the concrete and drill four holes in the corners and one in the center, lightly touching the concrete. It is better to take a steel carbide drill, as a regular one will quickly become dull due to contact with concrete.

Next, remove the sheets and make full-sized holes for the dowels. We open the lower part of the sheet with glue and put it in place, pressing it with self-tapping screws. If you don’t know how to seal the plywood joints on the floor in this case, then the answer is simple - you can leave them as they are.

Laying plywood on logs

If parquet, laminate or other similar coatings will act as a finishing floor covering, then you will first need to assemble the frame from the log.

You will need to follow these steps:

It is necessary to prepare boards with a thickness of 100 mm or a square beam of the same section.
We leave them for one week in the room where they will fit. Those that have deformed during this time are removed.
You will need plywood 12-22 mm thick.
The base must be prepared in the same way as in the case of laying plywood without a log frame.
Installation of bars is carried out with an interval of 300-600 mm.
The space between the lags must be filled with insulation.
When laying sheets, small gaps should be left between them, and the gap between the wall and plywood should be 25 mm. If you are thinking about how to cover up the seams between the plywood on the floor, then in this case they should also be left as is.
Plywood on the bars can be planted on liquid nails, and additionally fixed on top with ordinary nails.

If a log frame is used as a base, then adjusting bolts can be purchased to simplify installation.

conclusions

Plywood is an excellent material with an ideal price / quality ratio. At a low price, it can be used to make either a finished floor or a base for flooring. In any case, as a result, an excellent floor will come out, which will have all the same practicality and beauty. Its great advantage is that all work can be carried out without involving specialists.

What is the right way to seal the joints of plywood on the floor (flooring under linoleum)?

Puttying plywood floor

Before choosing how to putty the floor, determine the surface of the existing coating. Putty happens: basic - used by the first layer to even out the main irregularities; finishing - which is finally laid in a thin even layer; universal - which is suitable instead of the base one, and instead of the finish one.

How to putty floors

Plywood floor putty

Plywood, like most building materials, designed to make the decoration of the premises for various purposes. Its strength exceeds the tree species from which it was made. Typically, plywood is mounted on guides that are leveled. After fixing the plywood, it can be puttied. It must be treated with a primer on the outside and inside.

When the plywood is primed, you need to wait about an hour until it dries. Each manufacturer of primer or antiseptic indicates the area of use of the antiseptic or primer, indicates the drying time and other characteristics of use. These are such as humidity and air temperature and other materials for which this product is made. When the primer is applied and dry, apply putty.

Can be used ordinary putty, which is sold dry, and then kneaded by adding water to the state of sour cream. But the layer of application of such putty is from 2 mm. Therefore, choosing how to putty the floor, choose latex or oil putty. If you choose oil, then it will almost not be necessary to pass after drying sandpaper, smoothing out irregularities.

Since when puttying plywood, and any other surface, oil putty stretches well, you can choose it. It absorbs less paint than dry paint.

When puttying plywood, latex putty forms a layer of 1 mm. This putty can stretch well and cover all the bumps. She is usually puttied once. If necessary, you can apply a second layer. It's hard to rub with sandpaper. Because the mesh for grouting or sandpaper quickly exhausts its resource.

Therefore, thinking about how to putty the cracks in the floor, we answer, do it carefully so that you practically do not have to use sandpaper. And when the putty already applied to the plywood dries, start painting.

For the floor, polyester putty is most often used. Its feature is strength, good adhesion, elasticity. This putty does not shrink, but when working with it, you do not need to take a large layer. The number of thin layers should not exceed two.

Polyurethane putty is also popular. She's easy to use. It is resistant to gasoline, acids.

How to putty floors

Plywood floor putty

Plywood, like most building materials, is designed to decorate a room for various purposes. Its strength exceeds the tree species from which it was made. Typically, plywood is mounted on guides that are leveled. After fixing the plywood, it can be puttied. It must be treated with a primer on the outside and inside.

You can use ordinary putty, which is sold in dry form, and then knead, adding water, to the state of sour cream.

But the layer of application of such putty is from 2 mm. Therefore, choosing how to putty the floor, choose latex or oil putty. If you choose oil, then it will almost not be necessary to go through sandpaper after drying, wiping out irregularities.

Since when puttying plywood, and any other surface, oil putty stretches well, you can choose it. It absorbs less paint than dry paint.

When puttying plywood, latex putty forms a layer of 1 mm.

This putty can stretch well and cover all the bumps. She is usually puttied once. If necessary, you can apply a second layer. It's hard to rub with sandpaper. Because the mesh for grouting or sandpaper quickly exhausts its resource.

Polyurethane putty is also popular. She's easy to use. It is resistant to gasoline, acids.

Preliminary preparation

Before proceeding directly to the sealing of the seams, they must be prepared. You should start by grinding the joints, because this is the most important. If plywood is the finish or something thin and soft, such as linoleum, will lie on top, all surface defects will be clearly visible. It is most convenient to minimize the difference at the joints with the help of a grinder, it can also be used to go over other flaws in the material (knots, bumps). This work can be done manually, but it will take much more time.

Another important factor is the fastening of the edges. It must be very rigid, the joints should not “walk”, otherwise not a single putty will hold in them.

Read important material on the topic: what putty to choose for plywood and why?

If plywood is laid on a concrete base, then it is attached to glue (the main thing here is not to save on it), when mounting on a wooden surface, the sheets are screwed with self-tapping screws. They are screwed in every 15-20 cm. The extreme rows should be placed as close as possible to the future seams, but so that the sheet does not crack.

Sealing process

Basic Rules

You should choose not just a putty for woodwork, but a putty for wooden floors.

How to make a plywood floor in an apartment

Ordinary may simply not withstand the load.

From the entire range on the market, one of the best results was shown by acrylic putty. In the widest and deepest cracks, it is applied in several stages, each time waiting for the previous layer to dry completely.

Some advise for these purposes to use silicone, but it is not very suitable, as it is too soft and will bulge at the seams.

The disadvantage of this material is the price and the need to buy a sufficiently powerful (at least 500 watts) hot glue gun.

Hot glue gun for grouting

If you are interested in folk methods of how to cover up the seams between plywood on the floor, then there is no consensus here either. Some recommend overwriting the seams, mixed with sawdust PVA solution. Others for these purposes suggest using a mixture of epoxy resin and wood dust heated to 40 degrees. Third - a mixture of drying oil and building chalk.

Whatever you decide to fill the gaps between the plywood on the floor , the main thing is to follow the technological process. In this case, the result will be reliable and durable.

More information in this video.

General concepts
Practical comparison
Varieties
Negative sides of plywood
Preparing for installation
Substrate moisture
Laying plywood on a concrete base
Screed
Laying plywood on logs

Plywood is a versatile material, it is perfect for making a do-it-yourself plywood floor in an apartment. The main condition is the observance of the basic rules and nuances, attentiveness and scrupulous approach.

Due to the various areas of use of this material, you can find many varieties of it on the market.

Plywood has a number of advantages:

high strength;
low cost;
environmental friendliness;
ease of installation.

All these factors make the material an excellent solution for various applications.

General concepts

It is worth figuring out how leveling the floor with plywood differs from the material closest in price - chipboard.

Practical comparison

Chipboard is cheaper, but has harmful inclusions in the form of volatile carcinogens.

It is worth conducting several tests to assess the practicality of materials:

The first test will be for flexibility and shape retention. We put a centimeter sheet of plywood on two beams and stand on it. The material will sag for a while, and after we get off it, it will take its previous shape. Chipboard in such a situation will simply crack.

The next test will be moisture resistance. Let's put two materials in water and wait for the changes. Chipboard will very quickly begin to thicken and sag, losing its shape and becoming completely unusable.

The last test will be for fragility.

With the help of a hammer, we will inflict several blows on the materials. The chipboard will crumble, and the plywood will absorb the impact, causing minor dents.

All these positive distinctive features of plywood are acquired by the material due to a special manufacturing technology. Plywood is a wood board, the layers of which are glued together. Chipboard is pressed from chips.

All tests passed show that plywood is better than chipboard anyway.

Varieties

In order to lay a plywood floor in an apartment, you can use one of the following types of material with the following marking:

FC- plywood with an adhesive in the form of carbamide resin. It is distinguished by high moisture-repellent characteristics, high strength, environmental friendliness, and can be used to create a fine floor covering.
NS- an unpolished type of plywood in which the layers are glued together using casein glue. Such plywood is the cheapest, but additional sanding may be required after installation.
Ш1– plywood with one-sided grinding.
It also contains casein glue. It is best to use such plywood for the subfloor, since it has only one side sanded.
SH2– plywood with double-sided sanding. The layers are glued together with the same casein glue. If such plywood is used in rooms with a normal climate, it can replace FK plywood.

Negative sides of plywood

Plywood, like all wood products, is afraid of moisture.

continuous humidity up to 68%;
periodic humidity, up to 12 hours - no more than 78%;
during laying - no more than 60%.

Before leveling the floor with plywood in the kitchen, bathroom or tub, make sure that the temperature and humidity in them do not exceed the recommended values. If the figures are too high, try to use only FC brand plywood.

Preparing for installation

Before attaching plywood to the floor, it is necessary that the material acclimatize.

The acclimatization period is affected by the temperature difference between the old and new environment of the material.

Acclimatization times will be as follows:

almost the same temperature - day;
a difference of 8 degrees - 3 days;
more than 8 degrees -7 days.

Substrate moisture

In order to measure the level of humidity, you will need to take one square meter of polyethylene and spread it on the floor, fixing it with something heavy in the corners. Leave with the raised central part for a while.

Based on the time after which the drops appeared, one can judge the humidity in the room:

day - a room with such humidity at the moment cannot be used for laying plywood;
3 days - a layer of waterproofing should be laid;

If the floor is concrete, then we lay the film, and on top - a reinforcing mesh and pour the screed. If the floor is made of wood, then all rotten boards must be removed from it.

How can I seal the seams between the plywood on the floor?

Plywood is laid brand FK.

5 days - installation of plywood can be carried out without restrictions.

Laying plywood on a concrete base

A plywood floor can be laid on a concrete screed or on logs. In the first case, it is important that the base is very even, and the finishing layer is flexible. See also: "How to fix plywood to a concrete floor - laying options."

Screed

Let's describe the sequence of mounting plywood in an apartment directly onto a concrete screed:

First you need to carry out a thorough cleaning, there should be no debris left.
The surface should be opened with bituminous varnish with the addition of kerosene. If there is no such mixture, you can take parquet mastic and add solvent there.

A very important precaution would be to turn off the electricity in the shield for the period of complete ventilation of the room. This will prevent an accidental spark that could ignite combustible fumes.

Plywood sheets should be cut into strips or squares 1250x1250 mm.
Laying is carried out with a 50 percent shift according to the principle of brickwork.
We lay out the sheets on the floor, adjust their size, number them, do not forget about the gap between the plywood on the floor.
If linoleum will act as a finishing coating, then before sealing the seams between the plywood on the floor, it can be glued directly to the concrete floor using bustilat. Get a floating floor without mounting slots. If the question arose about how to seal the seams in plywood on the floor, then you can use acrylic non-shrink putty for wooden floors.
If an oak coating is to be laid, then plywood must be laid with the addition of mounting slots:

Laying plywood on logs

If parquet, laminate or other similar coatings will act as a finishing floor covering, then you will first need to assemble the frame from the log.

You will need to follow these steps:

It is necessary to prepare boards with a thickness of 100 mm or a square beam of the same section.
We leave them for one week in the room where they will fit. Those that have deformed during this time are removed.
You will need plywood 12-22 mm thick.
The base must be prepared in the same way as in the case of laying plywood without a log frame.
Installation of bars is carried out with an interval of 300-600 mm.
The space between the lags must be filled with insulation.
When laying sheets, small gaps should be left between them, and the gap between the wall and plywood should be 25 mm. If you are thinking about how to cover up the seams between the plywood on the floor, then in this case they should also be left as is.
Plywood on the bars can be planted on liquid nails, and additionally fixed on top with ordinary nails.

If a log frame is used as a base, then adjusting bolts can be purchased to simplify installation.

conclusions

To close the gaps in the floor between the boards, there are many options, you need to study them and choose the most suitable one. A wooden house is the most environmentally friendly and modern structure for housing. It is pleasant and cozy to be in it, however, there are a number of problems that the owners of this building face, for example, gaps in the wooden flooring.

Good to know: how to close cracks in a wooden floor

More possible reasons:

Incorrect calculations of builders or incorrect installation of floorboards.
Incorrectly prepared wood for operation - low-quality paints and varnishes.
Bad ventilation.
Insufficient floor fit.
The appearance of mice and termites.

Do-it-yourself grouting of cracks in the floor is a very economical method, but it is not aesthetically pleasing and is used mainly in dilapidated housing or in the country

All cracks, depending on the size and location, are eliminated, you just need to choose the right solution. There are many methods for fixing cracks in wood floors. Cracks up to 15 cm are filled with sealant. In this case, the sealant can be used in 2 types, it is a silicone or acrylic sealant for wood. Special sealants for wood differ in color, which allows you to eliminate joints and gaps as imperceptibly as possible.

Sealants have a number of advantages: resistance to moisture, favorable consumption in the process of sealing the gap and long operation after the elimination of defects in the floor.

High-quality sealing of cracks in a wooden floor

Regardless of the size of the gap between the boards in the floor or in the parquet, before removing it, it is necessary to do a dry and wet cleaning, remove dust and clean the place of the gap, let it dry.

Termination options:

If the gap in the wooden floor is up to 1 cm in size, then it can be sealed with a tourniquet, grout or filled with sealant.
If from 1 cm to 3 cm, then a special putty is well suited.
If the gaps are very large, then mounting foam, wedges or slats are well suited.

The most common seal large cracks in a wooden floor - polyurethane foam

Sawdust is taken in a fine fraction, poured with boiling water and mixed until a homogeneous mass.

You need to know: how to close a hole from mice

There are mice in both rural and urban areas. If there are any gaps in the houses, then mice can easily enter the living quarters, they will not only harm human health, as they are carriers of leptosperosis, toxocariasis, streptobacillus and many others, which can be fatal, but also harm room, its decoration, can penetrate food.

A hole from mice so that they do not gnaw through a new passage in a wooden floor can be repaired concrete mortar, after putting metal shavings there

The most proven options for sealing holes in the wall from mice are:

glass wool embedment;
Eliminate the defect with cement;
Mounting foam also helps well, mice do not gnaw it, and tightly seal the hole.

The advice of experts comes down to broken glass, which are placed in the holes of mice.

How and how to seal the seams between plywood on the floor

For sealing seams, are used:

acrylic putty;
Elastic sealant;
hot glue;
Sawdust with PVA and gypsum;
Epoxy adhesive.

To seal the seams between the plywood on the floor, it is necessary to choose exactly the putty for wooden floors, since the other simply cannot withstand the load

These works are also being done for plywood, on which linoleum will subsequently be laid.

You should also cover with putty or better with silicone sealant, dents in plywood and all joints, cracks. Plywood needs to be coated with an antiseptic. Before laying linoleum, it is necessary to pay attention to the evenness of the plywood and its cleanliness.

Types of putties for the floor from the boards

To date, there is a fairly wide selection of putties on wood. Before choosing a putty, you need to decide on the price, scope, type and brand.

Elastic putty for the floor does not require careful surface preparation, it is easy to apply and cover with other paints and putties

Putties are divided into types:

Polymer putty, which is made on a water basis, therefore, does not emit chemicals into the atmosphere. It dries quickly enough, holds well and does not crack.
Oil putty based on water, chalk and oils. It is one of the most reliable, however, after processing the gap, it takes a lot of time for it to dry completely.
Acrylic putty is environmentally friendly and non-flammable, which is very important for wood.
Solvent-based putty is ideal for parquet flooring, but is not the most environmentally friendly option.
The putty is elastic, which is ideal for “floating” cracks and joints. It keeps its shape perfectly, has good adhesion to the surface.
Pigmented wood putty, that is, various colors (white-birch, teak-mahogany, wenge-dark oak, beech-oak). It must be taken into account that often the color does not match the one declared on the package, you should require a demonstration of the goods or a stand with these putties.
Putty for wooden floors, which is used to smooth out irregularities, various defects and cracks.

How to close cracks in a wooden floor (video)

When cracks appear, it does not matter, any gap can be repaired with your own hands, and the wooden floor is easy to install and repair.

Plywood products are often used for leveling various types surfaces during renovation.

Plywood is laid on:

walls;
ceiling;

But without auxiliary procedures, such as puttying plywood, the seams between adjacent sheets will look unattractive, and the surface itself will not be considered even enough to perform quality styling linoleum or wallpapering.

Note! Putty on plywood for wallpaper that needs impeccably flat surface, or under other types of coating, it is able not only to align the joints between the sheets, but also to hide any defects that may occur on the material.

On the one hand, the use of a composition such as putty for plywood may not seem best solution, since the basis for the manufacture of any plywood products is the use of wood as the main production raw material. And many of you know that wood does not like moisture and is prone to damage under its influence ( high humidity provokes the development of fungi, mold, and putrefactive processes).

However, specially designed plywood putty already takes into account these features of the material, and therefore you will not be able to cause serious damage to plywood during its processing.

Moreover, you can significantly reduce the harmful effects of moisture on wood veneer by pre-treating it with special moisture-protective compounds. After that, puttying plywood on the floor or on walls can be done even with those leveling materials that have water base.

Carrying out preparatory work

To date modern market can provide buyers the widest range all kinds of plywood products, each of which has its own conditions of use.

Note! The offer even includes such grades of material that are absolutely not afraid of moisture, but such plywood usually has a very low level of environmental friendliness and, as a result, it cannot be used indoors.

Other plywood options are safe for health, but they are more susceptible to the harmful effects of moisture. To improve the resistance of the material, you can impregnate plywood sheets with hot drying oil or a special putty based on PVA. Until now, there is no more practical and effective way improve the water-repellent qualities of the plates, and you can perform a similar procedure even at home.

Impregnation with drying oil or PVA

Puttying plywood under linoleum, which is based on a substance called polyvinyl acetate, can improve the performance of the material even before you start installing the sheets on the floor. However, the process of such processing of plywood is carried out within several days, since the application technology requires the complete drying of each of the layers before applying the next one. As you already understood, the application of the composition is carried out in several layers, and the drying process itself must be carried out in natural conditions.

Note! PVA should be applied to the surface without forced acceleration.

After the material has been processed and dried, it is recommended to further impregnate it antiseptic and open with a layer of acrylic varnish.

Then puttying of plywood joints can be carried out using different formulations with a different base, since the surface prepared in this way is suitable for applying a coloring composition or installing decorative coatings.

There is another way to make sure that the putty of the plywood joints under the linoleum does not lead to delamination of the slab. To do this, you need to impregnate the veneer with heated drying oil. Optimum temperature substances 50-60 degrees Celsius (no more!), Which can be achieved by heating drying oil in a water bath.

To ensure an even coating layer, it is best to use a roller or brush when applying. Then the impregnation must be dried with an iron heated to two hundred degrees Celsius or a building hair dryer.

Note! The procedure should be repeated until the material continues to absorb drying oil. If there are residues of the substance in the form of large drops on the surface of the plywood, then the impregnation is sufficient.

After that, you can start laying the material, but do not forget to additionally impregnate the end zones of the sheets, since they are the most vulnerable.

When you have finished laying the material on the surface of the floor or wall, the plywood should be primed. The previously considered impregnation options are aimed at preventing the development of putrefactive processes. The primer has a slightly different purpose. It is aimed at improving the quality of the putty work done, since the primer composition improves the adhesion of the putty to the base.

It is worth noting that the primer composition provides wood with protection against the penetration of the coloring composition deep into it. Putty should be applied after the priming layer is completely dry.

If you want to see how plywood is puttyed, the video review below displays this technology.

Variety of putties for plywood

Today, there are many compositions for sealing joints and irregularities. Therefore, the question involuntarily arises whether it is possible to putty plywood with gypsum putty and what are the features of the polymer material?

Stores have a wide range of ready mixes, which can be applied immediately after you open the package. The proposal includes dry-based formulations that require the addition of a diluent such as acetone or plain water.

Note! Dry mixes have their advantages, because in the process of diluting them, you can achieve different consistency of the finished composition.

The main types of putties:

plaster;
cement;
polymeric.

The composition, which is based on cement, has a high water resistance, but during the drying process it is prone to shrinkage, as a result of which cracks can form on the surface. If you have already impregnated the plywood with drying oil, then you do not need to increase the level of resistance to moisture, so you can easily refuse to use cement putty.

Gypsum compounds do not shrink, so they are considered more suitable for grouting. The cost of such mixtures is much higher than that of others, but it is more than covered by excellent technical characteristics.

As for elasticity, polymer putty is the best in this matter. A number of polymer-based putties have a latex version of the mixture, which provides a high quality result and perfect surface leveling. But in this case, the application technology must be observed very strictly, since the composition does not tolerate errors.

At the slightest oversight, scars and excess material will not be easy to remove, stripping will not help here.

Note! Regardless of which compound you choose for your job, make sure the filler is suitable for the woodwork. All manufacturers indicate this information on the packaging.

Features of surface puttying

The process itself, aimed at leveling the surface of plywood, is practically no different from the technology for working with other types of surfaces.

First you need to close up all the bumps:

defects;
cracks.

It is recommended to work with a rubber or steel spatula. After the composition is completely dry, the treated areas should be cleaned with sandpaper and remove dust from them. Then the next layer of the mixture is applied, and the stripping procedure is repeated again.

Note! You may need to apply several coats of putty to finally level the surface. The maximum thickness of each layer is a couple of millimeters.

Also, remember that these latex-based compounds can be applied in a maximum of two layers, so you should foresee your actions in advance in order to purchase the right material.