The unit floor on wooden joists

poles for multilayer structures made of wood are usually lags.They are made mainly of polymer or wood.Much less common joists, made of metal or concrete.In general, it lags called transverse floor beam, which is lined topcoat.Wooden joists are good because of their low prices.Polymer materials are valued for simplicity and speed of installation.It is said that the master engaged chopped houses are still used instead of timber hewn on three sides smooth logs.These logs are called similarly lags, but they are much cheaper.In any case, what kind of material is used for the installation, before laying on the wooden floor joists, boards need to hold at least one year under normal humidity.On the peculiarities of the wood floor installation on joists - on.

Benefits material

lags wood floor have some significant functional advantages:

1. Laghi floor in a woodenthe house has good thermal insulation, which reduces heat loss.
2. addition lags allow equip ventilated underground niche, where you can, for example, to lay the necessary utilities.
3. In addition, they allow the right to redistribute the load on the overlap layers located below.
4. Thanks logs can not create a flat surface for flooring floorboards.
5. Also worth noting is that in case of damage of separate structures, they can be replaced, as the bars of wood can be purchased at any hardware store easily.

floor device on logs in a wooden house

How to choose a cross-section of timber

ratio timber sides to lag should be 2: 1.5.In that case, if the floor is planned to put the wooden beams, then a lag there is another requirement.Their size should be chosen depending on the distance between the bearing supports.If you want to insulate the floor by means of thermal insulation layer between the insulation and the underside of the finishing coat should leave a gap of 3.5 mm for ventilation.Therefore, when buying timber must take into account the magnitude of this gap.

To determine the lag section, you can use the table:

If stacking floor will be used as a support the ground, it is necessary to take into account more the thickness of the reel, which is laid on the skull bar attached to the joists.In general, it is better to take a timber with a section slightly larger than the calculated value.If the floor is made of ground base, you can not use the expensive timber of large section.In this case it is allowed to put a brick support.Step between them should be about 1.2 m. In this case, you need to consider the level of groundwater.If it is less than 2 m, then as a material for the bearings can still use the sand-lime brick.

between the support beams and the elements should be the same distance.That's what made competent styling., You need a foundation before you build support.And under each beam brick is a separate basis, the size of 400 to 400 mm.It allowed to use the strip foundation, which will cover several of these supports.In the column of each row should be at two bricks.But the height of the column depends on the level of support elements for beam.

Rules lag laying

during installation you need to follow some rules:

1. surface, which is to prepare the logs, you must first properly cleaned and put it on the primer layer.
2. available wood parts need to be dried and treated with a suitable antiseptic.
3. as soundproofing material is slag, sand or fiberboard.
4. After completion of the laying of the floor, horizontally stacked lag is necessary to verify the rule that is applied on top of the beams.As a rule is convenient to use a long level.If there is no clearance, it means that the work was performed correctly between the floor and beams.In the presence of the lumen, the surface must be leveled by podsypaniya sand under logs.
5. Laghi is desirable to establish, focusing on the placement of the window opening.Furthermore, there should be a distance not exceeding 350 mm and a wall between them.
6. Logs must first align, and only then they can lay a wooden floor.
7. boards must be fixed for each lag.
8. To avoid split boards, holes for fasteners are made in advance.If the attachment of the wooden floor to lag screws are used, then for making holes using a very fine drill.

laying the lag on a concrete foundation

There are several methods of log laying on concrete.The first method is to use the pads and the second - a cement screed.Consider the details.Thus, in the first case the lining of hard material of different thickness.They fit between joists and concrete with the aim to align the level of the floor.This method can not be called the best.But, despite this, it is used quite often.The disadvantage is that over time pad may deform.This will lead to the emergence of a squeak and a curvature of the floor.

In the second case, as has been said, using cement.Its main task - to align the front surface of the floor.Logs may be laid on the surface only after it is filled with screed.This prevents deformation of the floor.Screed for support will be strong and reliable enough.But before the logs laid on the concrete foundation should be protected from moisture.For this purpose plastic film.

addition waterproofing will need soundproofing.It is necessary to pay off the impact noise.Sound-proof pads stacked directly below the joists.Allowed to use the cork backing.As for covering, it may be cement or dry.When all this is done, you can start to stack logs.As the material, it is desirable to take the bar, which is the same length as the length of the room.In the absence of the opportunity to acquire the material the desired size, you should get a board length of at least 2.1 m.

To design turned out quite stable, logs it is better not to lay on the soft insulation.It is desirable to lay material to insulate between joists in the form of paintings.Depending on the availability of slots, they can seal the superfluous scraps that are left on a heater.

Installation floor in a wooden house log

Time has shown that wood is one of the best materials used for flooring.If the wood floor is laid properly, it will last long enough.During this period he retained his appearance.In addition, the wood floor the most environmentally friendly.Of the advantages of such a coating still worth noting the ease of leveling the surface.The wooden floor also has a good sound and heat insulation.

For laying of the tools you will need:

• ax,
• punch,
• building level,
• hammer with a claw hammer,
• saw,
• screwdriver,
• drill and wrenches.

also need a board floor joists and insulation.log size for a wooden floor is taken 50 to 500 mm.From handy fasteners screws, anchor bolts and nails.When available, the joists are laid on sound-insulating material in compliance with the required distances.The surface should get enough level that can be controlled by means of a spirit level.By the concrete joists are attached to the anchors.Boards are fixed to joists with dowels.

Installing wooden floor the lag

The first step is to prepare the ground.In this case, instead of filling sand built the supporting brick pillars.Each support bar is a separate structure with its own foundation.To fill the need to pre-mark the work surface.Lay the plank floorboards can be different.The method of installation depends on the type of premises where works are carried out.Thus, in the recreation room floorboards are best positioned parallel to the flow of light.In the bath, you can place them parallel to the long wall.On the porch floorboards optimally positioned at a right angle.

In some cases, over the logs are not installed extra crate.So, sometimes it is best to put the logs across the board.When calculating the size and pitch lag indent must take into account the position of the columns.

You can use the table:

Let us more floor unit on wooden joists.Typically, the bars begin installation of one of the walls.At the same time between the first beam and the wall should leave a gap of at least 300 mm and not more than 200 mm.The same applies to the last logs, which will be very near to the opposite wall.By the way, should not be under each leg to fill in a separate foundation.Allowed to fill only one number under several pillars at once.

Most importantly, the basis advocated support loop around the perimeter of at least 10 mm, preferably 45 mm.Therefore, the formwork must be made so that the foundation layer was poured on width and length greater than about 30-90 mm.The same goes for pouring basis for each leg.

concrete foundation poured follows.First, compacted soil.Then the formwork is arranged with sides 100 mm high.Next, the bottom is laid reinforced mesh.Then the concrete is poured.Then wait about three days, until the concrete hardens.Then, as the foundation waterproofing harbor polyethylene.And, finally, constructing the support.

With the construction of the cold floor beneath it is a space that should fill expanded clay or slag.But it should not be backfilled completely - the top should be left about 50 mm.To ensure proper ventilation of the underground space is left around the perimeter of the technological gap.The plinths which close cracks around walls, you must do the air vents.According to building codes for every 15 sq.m.must be a plinth for the two holes.Thus, the total area of ​​the holes is obtained from 20 to 30 square meters.cm. In order to prevent the entry of the house mouse, the hole should be covered with a thin decorative mesh of colored metal.

floor joists in a wooden house: video