Warm seam technology for a wooden house

Warm seam technology for a wooden house We make a warm seam for a wooden house with our own hands. Timber structures are highly susceptible to rainfall and temperature changes.

After construction, new timber begins to shrink, causing cracks and crevices. In order to prevent the deterioration of the indoor climate, a warm joint is required for a wooden house.

This technology smooths out the imperfections of natural wood, and also helps to protect the building from the cold.

General information

The essence of insulation technology

Joints between logs in a wooden house require sealing, as well as seams in brick , concrete buildings. And yet the insulation process is very different from the rest, and also involves the use of other materials. Usually, building compounds do not last long, and when shrinking, the wood can begin to crumble, crumble, and everything will have to be changed quite often. But the sealant using the "warm seam" technology works many times better and is the most reliable.

So, the method of sealing seams is multi-stage and will imply the following:

The finished seam can be decorated with any means at hand. The joint is durable, does not allow moisture to pass through the house and also prevents blowing. The sealant is extremely rarely used in isolation, without caulking with additional means, because the gaps between the logs are large enough, and everything can fall out when materials are displaced.

Features of sealants for sealing joints in wood

Professional means for sealing wood are considered to be universal and quite effective products in action. They are perfect for creating warm seams in a log house, for filling gaps and holes in masonry made of bricks, concrete, natural stone, and also suitable for working on foam concrete and aerated concrete, plastic, as well as surfaces that are plastered. The warm joint sealant protects wooden structures 100% from winds, temperature changes and precipitation. All products also contain antifungal additives that prevent mold from growing. The characteristics and properties of sealants are as follows:

  • Safe for the environment and humans.

  • Suitable for indoor and outdoor use.
  • They have excellent elasticity (the elongation rate of certain sealants sometimes reaches up to 700%).
  • High degree of adhesion to wood and other building materials.
  • They are resistant to atmospheric factors and ultraviolet radiation.
  • Do not suffer from yellowing and darkening over time.

Good formulations have exactly these properties, and they are also thixotropic. This means that they can be used without problems on vertical-type bases and inclined surfaces - they will not flow when still.

Selection of a sealant for a warm joint

The choice of one or another means for sealing joints must be done with great care. If you buy low-quality wood sealants, then there is a big risk of wasting energy and money on use. When buying, it is worth making sure that the product is really suitable for the technology of the warm seam of a wooden house, and also has excellent adhesion to wood.

The service life in outdoor conditions should be from 15 to 20 years or more, and shrinkage after drying should be absent or even minimal. The excellent elasticity of the compositions is also important, as well as the ease of application - they should be produced in a tube that is ideal for a metal assembly gun.

Suture sealants are produced in an incredibly large range. The most inexpensive and at the same time the safest in cost are acrylic compositions, and they are ideal for interior work, because they are environmentally friendly, do not release toxins, and they do not contain solvents. Acrylic adheres well to porous wood, and after polymerization it can even be painted to look like wood.

For outdoor work, it is also useful, but it is considered less resistant to moisture and ultraviolet light than other compounds.

Silicone sealants are great for creating a warm joint. They are ways to last from 20 to 25 years, elastic, durable, and also reliable. Acid-based products are inexpensive, and those that are neutral (do not contain acids) boast a higher degree of adhesion to building materials. There are not so many disadvantages to silicone.

This is that a dried seam cannot be painted, although ready-made painted mixtures are eaten on sale. It is not worth adding pigment to the composition on your own - this can only be done using a special vacuum mixer. There is another kind of "warm" sealant, or rather, polyurethane compounds.

They have the following characteristics:

  • Warm seam technology for a wooden house Optimum adhesion and strength when applied to wood.
  • Tolerance to mechanical and chemical influences, moisture.

  • No shrinkage after drying.
  • Suitability for dyeing as the joint cures.
  • UV resistance.
  • Excellent elasticity, resistance to deformation.

Many polyurethane-based sealants contain solvents and should ideally be used outdoors.

When choosing a product, preference should be given to formulations from famous brands.

We offer you signs of really good products:

  1. Neomid (Wоd Professiоnаl Plus) is an acrylic-based sealant that is tear-resistant, elastic and low-flow.
  2. BARTONS "Warm House" - a composition based on silicone, does not shrink, and also contains a high concentration of fungicidal additives.
  3. Perma Chink is an acrylic-based sealant that sets quickly, but is also quite durable and has a minimum consumption.
  4. Energy-Seal is an acrylic type agent, perfect for processing seams up to 2.

    5 cm in size, perfectly tolerates deformations.

Now let's talk about how to use sealants correctly.

Instructions for sealing joints

Competent insulation of a wooden house can only become possible due to the exact observance of the technology, which will include the preparation and the main stage for sealing the cracks.

Tools, fixtures and materials

To complete the work, you will need to buy a sealant in a cartridge or other form that is perfect for mounting a gun.

You will also need to prepare in advance:

  • Spray gun.

  • Foamed polyethylene in the form of a cord.
  • Primer for wood.
  • Narrow spatula.
  • Masking tape.
  • Paint brush.

  • A rag.
  • Water.

You can apply sealant by hand too, but using a gun will do much better and faster. Moreover, assembly guns help to squeeze out the agent in a dosed, beautiful, even strip, and without it it will be very, very difficult to achieve such an effect.

Preparatory stage

It is not difficult to make a warm seam for a wooden house with your own hands.

Older buildings often have rough caulk and should be removed beforehand to reduce the risk of mold and insect nests. After the blockhouse, you should clean it of dust, dirt, remove the old paint coating, and if there is an oil-type impregnation, grind the base. It is necessary to process the wood with special degreasing agents, and then prime it and let it dry well. If you ignore such an event, the sealant will lay down unevenly, and the adhesion to the base decreases.

After that, a special polyethylene seam should be placed in the seams between the logs.

It is required to fill the space between the joints, since the entire gap will be completely sealed with a sealant, ineffective and expensive. Too large joints should first be caulked with a tourniquet, tow, and then a cord made of expanded polyethylene is attached with metal brackets. Both surfaces must be pasted over with masking tape so that the sealed layer is even.

Sealant Application

Apply the warm joint compound using a glue gun. The procedure is as follows:

  • Cut the tip of the tube at an angle of 45 degrees.

  • Insert the tube into the nailer.
  • Pour the unpackaged product into cartridges into a special gun, which is needed just for such sealants.
  • Press the trigger, apply the sealant with a flat tape of the required thickness (the layer of the agent should grip the logs by 1 cm from both sides).
  • Spray the joint with water from a spray gun, and then level with a spatula and remove excess.
  • Dampen a small brush and finish the seam.

  • Use an old rag to remove streaks, streaks, and then remove the masking tape, without waiting for the sealant to dry.

As a rule, for complete polymerization, the composition requires from 2 days to 2 weeks - it all depends on the brand, type and weather conditions. Only at the end of the period can the seam be stained.

Consumption of funds

Typically, sealants are produced in tubes of 0.3 and 0.

6 kg, as well as in plastic buckets with different volumes. Consumption can vary greatly depending on the depth and width of the joint. For example, with a conventional seam of 0.5 cm deep and 2 cm wide, from 0.2 to 0.

25 kg of the product will go for each running meter.

Drying time

The use of "warm seam" technology for wooden houses is allowed in dry weather at temperatures from +5 to + 30 degrees. The optimum humidity for work is 60%, and the temperature is from +20 to +23 degrees. Under such conditions, the agent will harden at about 0.2 cm / day, and the primary film will appear in 1 / 2-1 hour.

In rainy, damp weather, sealing a house made of wood is not worth it, as well as during snowfall, as this can adversely affect the quality of the resulting seam.

Sections and corners

The most difficult work in forming warm seams will be the joints of wooden walls. In order to seal corners, cuts, a polyethylene cord of the required length and thickness should be inserted into the cracks, and also soaked with a spatula. Typically, this process takes a lot of time, laborious and painstaking. After the sealant is applied, the layer is leveled with a wet spatula and left.

If the corners were previously treated with oil-type impregnations or fire retardants, then you will need to grind the wood with a grinder in advance, since otherwise the composition will not receive the required adhesion.

Storage conditions of the agent

The agent should be stored at temperatures from +5 to +29 degrees, there should be no access to the sun, and the room should be protected from moisture. The sealant is able to withstand up to 7 cycles of freezing and defrosting (the duration of each is no more than a day, and the temperature is not less than -18 degrees). Before use, the frozen composition should be kept at room temperature for at least 24 hours.


Many sealants are fire safe for wood, and also do not carry the risk of explosion, and are not toxic.

And yet, when working with them, it is worth protecting the skin of the hands with gloves, but allowing the product to get into the eyes and mucous membranes. When processing the surface of the walls inside the room, ensure good ventilation.

Is it possible to make sealing with your own hands?

The production of a warm seam is carried out once and for many years, therefore, special care and strict adherence to technology is required. Non-professionals, beginners, as well as those who will ignore important rules, will often make mistakes that will lead to a strong decrease in the quality of the finished seams.

The most common mistakes are:

  • Wrong choice of sealant.

  • Working in cold and damp weather.
  • Application of thin seams.
  • Poor substrate preparation.
  • Sewing intermittent and rough seams.
  • Poor seam smoothing.

If the technology is violated at each of the stages, then the sealing layer may crack, swell or even rupture. This can cause depressurization and the ingress of cold air into the wood house. Moisture will also enter the cracks, and this will provoke rotting materials and the appearance of fungus, mold. As a result, if you fully comply with the technology and buy only high-quality materials, then you can do the work yourself.

( 1 grade, average 2 of 5 )