Do-it-yourself veranda insulation from the inside

Do-it-yourself veranda insulation from the inside

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A closed veranda is a continuation of the house. If it is well insulated, then a full-fledged living space will come out, which can be used in winter. It is necessary to install thermal insulation on the walls, roof and floors. This is the only way to achieve a positive effect. Today we will look at how the veranda is insulated in a wooden house, and also find out what kind of thermal insulation material is suitable for this business.

On which side to lay the thermal insulation

Before proceeding with the repair, you need to decide on the type of building. It should be noted right away that open terraces are not insulated. This option is available only for closed verandas. The process begins with the selection of thermal insulation, as well as determining the location of its installation. There are no questions with the floor and roof, but the insulation of the walls of the veranda can be done from the inside and outside. The given negative and positive aspects of each method will help to make the final decision.

The positive side of the internal insulation of the veranda is the ability to perform work in any weather, even in winter. From the inside, free access to all structural elements of the room is opened. That is, it will immediately be possible to insulate the floor, walls and ceiling. The disadvantage is the dismantling of the cladding. Although with external insulation, only the walls remain intact inside the veranda. The floor and ceiling will still have to be removed.

Attention! With internal insulation, the freezing point is obtained in the wall. This leads to a slow destruction of the structure. There is another problem to keep in mind. If the vapor barrier is installed incorrectly, the dew point will shift under the insulation to the inner surface of the wall, which will lead to the formation of fungus and rotting of the wood.

The pluses of external veranda insulation should immediately include the displacement of the freezing point and ross in thermal insulation. The wall becomes protected from the influence of aggressive factors, and can independently accumulate heat from the heaters. When working outdoors, all debris and dirt remains outside the premises. Any thermal insulation, depending on its thickness, takes up a certain percentage of free space. With the external method of insulation, the inner space of the veranda will not decrease.

Advice! The ceiling of the veranda can also be insulated from the outside, but for this you will have to remove the roof covering. Before deciding on such a step, you need to think about what is easier to do - to dismantle the ceiling or roof.

Choosing thermal insulation for the veranda

For veranda insulation, the most common materials are polystyrene and mineral wool. However, there are also other types of thermal insulation that have proven themselves well for such work. Let's look at the materials that are best suited for insulating all elements of the structure of the room:

  • Penofol refers to flexible foil-coated materials. Insulation is used alone or together with other types of insulation. The disadvantage of the material is that it is very thin.
  • Polyfoam is a very light insulation. It is produced in slabs of different thicknesses. Almost zero hygroscopicity allows you to mount the material without the arrangement of hydro and vapor barrier. But in the case of wooden structural elements, experts recommend adhering to the rules for laying a heat-insulating cake, since if the technology is violated, moisture forms between the plates and the wood. The disadvantage of foam is fire hazard, as well as eating the material by rodents.
  • Expanded polystyrene is almost the same polystyrene, only it has improved performance. Sound insulation of this material is poor. At a cost, expanded polystyrene is more expensive than polystyrene.
  • Mineral wool is not afraid of deformation, chemical attack and fire. Possesses high rates of sound insulation. For its installation, a frame is needed, as well as a protective barrier made of vapor-waterproofing. Over time, the mineral wool is caked. With a decrease in thickness, the indicator of thermal insulation properties decreases.
  • Basalt wool is produced in slabs and is a type of mineral wool. The material has similar properties. Among the many heaters for wooden walls, experts recommend using basalt wool, and not foam.
  • Polyurethane foam is produced in the form of hard and soft plates, as well as a liquid used for sprayed insulation. The chemical-resistant material is UV-resistant. The spray method is considered the best, but it is very expensive. When using boards, as in the case of polystyrene, moisture accumulates on the surface of the wall.
  • Tow is a natural material. Usually it is used during the construction of a log house. In the finished building, it is used as insulation to caulk the walls from the bar.

You can insulate the veranda from the inside with your own hands with any of the materials considered. It all depends on how much the owner is counting on.

Thermal insulation of the veranda floor

Internal work involves insulating the floor on the veranda, and this must be done first. Usually in wooden, and in many stone houses, boards or sheets of chipboard laid on logs serve as flooring. Before starting work, they will have to be dismantled.

Further work takes place in the following order:

  • After removing the flooring, the logs open for everyone to see. Jumpers are placed between them from a board with a thickness of 50 mm, fixing with metal overhead corners and self-tapping screws. The floor with lags turned out to be broken into cells. So they need to be tightly filled with insulation.
  • Foam or mineral wool is suitable as thermal insulation for the veranda floor. Any material can be cut well, which allows you to accurately adjust to the size of the cells. It is important that there are no gaps at the joints of the pieces of any insulation.
  • When using mineral wool from below, it is imperative to lay waterproofing so that the loose material does not pull moisture from the soil. From above, the thermal insulation is covered with a vapor barrier. It acts in one direction, so it will not let dampness out of the room, and it will allow moisture vapor to come out of the mineral wool.
  • Soft mineral wool can be used to fill all soft voids. But if you insulate the veranda with foam, then small gaps may remain between the plates. They need to be blown out with polyurethane foam.
  • Regardless of the chosen insulation, its thickness should be less than the height of the log. After laying the flooring, a gap is formed - a ventilation space. Free access of air will prevent the accumulation of moisture under the floor of the veranda, which will extend the life of the wooden elements.

When the vapor barrier is laid, you can nail the floor covering to the logs. In our case, these are boards or chipboard.

Installation of thermal insulation from the inside on the walls and ceiling of the veranda

After the floor has been insulated, the verandas move to the walls. The same mineral wool or foam is used as a heater.

Advice! For wall insulation, it is better to use basalt wool. Plates are easier to attach to a vertical surface than rolled mineral wool. In addition, the basalt slab is less compacted.

It should be noted right away that only walls that are in contact with the outside with the street are subjected to insulation. It is unnecessary to insulate the internal partitions with the house. The photo shows a diagram of a wall with insulation. On it you can see the order of all layers.

Adhering to this scheme, they proceed to the internal insulation of the walls. First, the entire surface is covered with waterproofing. The material at the joints is securely glued with tape to avoid the formation of gaps. The crate is knocked down to fit the size of the insulation from the bars. Thermal insulation is tightly placed inside each cell, all this is covered with a vapor barrier film, after which the whole cake is sheathed with clapboard or plywood.

The use of polyurethane foam for warming the walls of the veranda

For wooden walls, sprayed polyurethane foam is the best insulation. With the help of special equipment, high pressure foam is applied to the surface of the wall. Its particles fill all small cracks in the wood. This eliminates any possibility of dampness between the insulation and the wall.

The wooden frame will have to be built, since the cladding material will be attached to it. The owner of the veranda will not have to do anything else with the spraying method. The rest will be handled by hired specialists. The only drawback of liquid insulation is its high cost. For work, special equipment is required, which is unprofitable to buy for one veranda insulation, so you have to resort to hiring specialists.

Installation of thermal insulation on the ceiling of the veranda

Warm air is constantly at the top. This is the law of physics. Without an insulated ceiling, the labor expended on thermal insulation of walls and floors will be useless. Insulation will prevent warm air from escaping through the cracks in the veranda ceiling sheathing.

Advice! With insulation from the inside of all elements of the veranda, the room is sealed at the same time. It is important to take care of ventilation or at least provide a window for ventilation.

Ceiling insulation occurs in exactly the same way as it was done on the walls. If the cladding is already knocked out on top, then it will have to be removed. Next, there is the process of fixing the waterproofing, making the frame, laying the insulation and stretching the vapor barrier film. At the end, we return the skin to its place, but before attaching it, you need to make sure that there is a ventilation gap.

Advice! To prevent the insulation from falling out of the cells, it is glued to the ceiling or fixed with counter-lattice slats.

How can you heat the veranda

If a lot of money has been spent on warming the veranda, the room needs to be heated in winter, otherwise, why are all these efforts needed? It costs a lot to bring heating from the house. In addition, the veranda does not always need to be heated. Why do you need extra expenses? The easiest way is to attach an infrared heater powered by electricity to the ceiling. The device can be turned on as needed. Thermal insulation will maintain a positive temperature inside the veranda in winter. Heating can be turned off at night, but only during the day.

The video tells about the insulation of the veranda:

Summing up, we must briefly touch on the windows. After all, it is through the double-glazed windows that large heat losses occur. If you decide to make a thoroughly insulated veranda, do not spare money for plastic windows with three glass panes. Only comprehensively taken measures will allow you to keep warm in the room in any frost.

Watch the video: INSULATING A SMALL CONCRETE FLOOR - DIY Oak Porch Build