Sealant in the wooden house: choice, instructions for use, feedback

The construction of a wooden house, provides for the subsequent sealing of the joints between the beams, since it is impossible to avoid them. Previously, natural materials such as tow, flax or moss were popular. The modern building market offers seam sealant from various manufacturers.

What is it?

It is a mixture based on polymeric substances. In composition, they are distinguished by:

• Silicate;
• Rubber;
• Acrylic;
• Silicone;
• Bituminous and others.

The correct choice of sealant for seams in a wooden house will help to know the characteristics of each of them. Wood is a special material that is prone to deformations in time, so the sealant must have properties that can adapt to shrinkage. It must be elastic, which will allow it to work on compression and stretching. Also, the material gives the whole structure a finished and aesthetic appearance with its ability to lie flat on the surface. Such a material, which can be said - universal sealant, no. Each of the varieties performs an individual function, despite the presence of similarities.

Acrylic

This sealant for joints in a wooden house, has all the necessary qualities. It has good adhesion to the surface of the tree and the same coefficient of thermal conductivity, so the entire surface of the wall will have the same temperature, without changes. Use this sealant can be on both the exterior and interior walls. It does not lose its properties even after painting, but you can immediately select the desired shade, which is offered by the manufacturer. The average values of acrylic sealant are as follows:

• Hardening at a speed of up to 3 mm per hour;
• The film is formed (depending on the manufacturer) from 5 to 20 minutes;
• The density varies from 1.65 to 1.75 g / cc. cm;
• Resistance to temperature drop -20 to +80 degrees;
• Shrinkage up to 25%.

Characteristics of acrylic sealant

Separately, we can say about the merits of compositions of acrylic components:

• The clutch is fine with many materials, including concrete, wood, plaster and brick;
• It has a high elasticity, which does not disappear with time, but allows adjustment under compression and tension;
• A high degree of durability, it is not inferior in terms of service life to the house itself made of wood or timber;
• Moisture resistance - good sealant completely excludes penetration of moisture;
• Does not contain any solvents;
• Simplicity of installation;
• Possibility of further painting;
• It can withstand a wide range of temperature differences.

Even with a large number of positive qualities, the acrylic sealant has drawbacks. The main, of which is the strict observance of the rules of its installation. Do not apply it at low temperatures (below +10), as well as in rainy weather. Bad will perform its functions in permanently wet rooms. Another disadvantage is the relatively high price. This is especially true for colored species.

Also, acrylic materials interact poorly with the sun's rays, they begin to crack and spoil the appearance. Therefore, it is reasonable to replace external seams with another kind. Produced sealants, the characteristics of which may differ, find application in wooden buildings, different in purpose.

Silicone

What is he like? Such a sealant, the application, which is conditioned by all the necessary qualities, can be mounted on any wooden constructions. Judging by the reviews, many consumers note the lack of silicone composition - the inability to further color, in which the necessary elastic properties are lost. It is not subject to staining, otherwise the necessary elastic properties are lost. In this case, the seams, especially the outer ones, will look ugly. If they deform, then the entire layer will need to be removed to restore. This may damage the wooden structure. Therefore, many experts prefer other types of sealant in such situations.

The advantage of silicone is its high moisture resistance. But with a large flow of water sealant can be washed away, so even the outer seams should be protected from rainfall. The disadvantage of such a sealant for interior decoration can serve as its unpleasant odor of acid.

Polyurethane

Apply it to the outer finish of the seams. Such material has excellent adhesion to the tree, and is also not subject to deformation when exposed to sunlight or precipitation. It shows itself well in problem areas, as well as under the load of the first year, while the sealant works both for compression and for breaking. Temperature differences do not affect the quality of the material.

Bituminous

This sealant for joints in a wooden house is distinguished by the simplicity of the composition, which includes only 2 components - rubber and bitumen. Its application is more important for roof insulation. He is not afraid of rain, due to its water resistance. Applying it does not require special skills, so you can quickly and accurately cope with the sealing yourself. The disadvantages of such a sealant can be attributed to its unfitness for further coloring. Also, when working with bituminous composition, protective equipment is required. This is special clothing, aspirator, gloves. If the installation is carried out indoors, then it must be thoroughly ventilated.

Sealing rules

Like any work, sealing joints, requires a preliminary surface preparation. If the building is not new, then you will have to remove the old finish.

• To get rid of dust and small debris, it is better to use a vacuum cleaner;
• A simple cleaning can be done with a spatula, while trying not to damage the surface of the tree;
• To treat the inner and outer surfaces with special protective compounds against parasites, moisture and fire;
• In cracks of a wide diameter it is better to lay a cord of a sealant, from polyethylene. It is deepened into the seam by a special caulk. You can use a simple spatula, but act with care. Using a cord, you can significantly reduce the consumption of material on the seam sealant.

Tools for work:

• putty knife;
• water;
• Painting Scotch tape;
• Sealant;
• Gun for the composition.

Stages of work

To keep everything going for a long time, it is necessary to follow a certain algorithm of work:

1. The first thing wooden houses from logs are checked for the size of the seam, the minimum section of it should be 3x5 mm.
2. Use adhesive tape to protect the edges of the seam. This will give it evenness.
3. Then carefully opened the sealant package. Many manufacturers make special depressions in the lid of the bucket into which the pistol is inserted and the liquid sealant is taken up. In this case, the lid itself is lowered as the sealant is used.
4. The gun is immersed in the tank, and the tip of the gun must be cut at an angle.
5. Sealant for joints in a wooden house, must be applied neatly, without irregularities, voids and bubbles.
6. When working, check whether the adhesion of the sealant and the seam is secure.
7. A spatula can make the seam complete and even. It is necessary to wait and hold the tool perpendicular to the surface.
8. Surplus or uneven edges should be removed using a sponge. But not with a detergent, as it has an aggressive composition, and a solution of water and alcohol in a one-to-one ratio.
9. The last step is the dismantling of Scotch tape.

The complete drying of the sealant depends on its composition. Manufacturers indicate a different period, which can go up to 3 weeks.

Clear the tool from the sealant immediately after use will not be difficult. You can do this with a simple soap solution. But if you miss the moment, and give the tool to harden, then you can not do without mechanical action.

Carrying out works is identical both on internal, and on external seams. Compliance with these rules will achieve the desired result. Wooden houses from logs in which the seams are sealed, serve a long time. But it is obligatory to conduct planned inspections.

Errors at work

Sometimes fatal errors are possible, which can cause short-lived construction:

1. Application to the surface, which is not completely dried. If it is a question of bad weather conditions, then there will be a need to use a construction hair dryer.
2. You can not replace the insulation of the seam only with the sealant sealant. The house of the bar before sealing can be insulated with penofol. This material takes the form of a seam after shrinkage, and fills all of its space. After such warming, it is immediately ready for further processing.
3. The ends of the wood can in no case be sealed, otherwise there may be a problem with mold or rot. These sites are kind of capillaries for the whole house. To protect them, special compounds have been developed that do not form a film on the surface.
4. An open tank with a sealant is better to be used immediately, otherwise it will not have the necessary properties after drying, and simply does not lie in the seam. In this case, you have to buy, not cheap stuff, again.

Sealant, an application that has taken a strong position in the finish of wooden houses, may be different in composition, but the functions should perform similar.

Even the seams sealed by him can not give a full guarantee against the problems that arise in the wooden house. Therefore, it is necessary to conduct an inspection regularly - this will allow timely elimination of the defects that have arisen.

Cost

The price of a kind of finish, such as joint sealant, used in wooden houses, can vary in a wide range.

The manufacturer "Satisfied Home" offers 15 kg of sealant for 3300 rubles. Sealant «Neomid» can be purchased at a cost of 3 kg - 1400 rubles, 7 kg - 2600 rubles, 15 kg - 4700 rubles. Many buyers, speak about this firm exclusively positively. It has proven itself in the market, the quality of products meets all the requirements.

Hermetic for EurAcryl wood with a volume of 0.6 l / kg costs 310 rubles, of the same volume, but another brand is a sealant for wood Ramsauer Acryl 160. Its cost is 400 rubles. There is also the Ramsauer 320 Baudicht. Its price is 954 rubles. The cost depends on the manufacturer and the seller.

It is necessary to avoid deliberately cheap materials, because you can face forgery. To exclude this situation, it is better to make a purchase in a large shopping center or a checked shop.