Construction of houses

Tips on how to insulate a loggia with your own hands

Due to the fact that the idea of ​​transforming the loggia into an additional living space sooner or later visits each owner of an apartment in a multi-storey building, the relevance of the question: “How to properly insulate the loggia with your own hands?” no doubt. Having insulated the loggia with your own hands and turning an unpractical room into a full-fledged room or part of it, you not only get rid of dampness and drafts, but also increase the useful area of ​​the apartment. The prospect of expanding living space turns out to be very attractive for the owners of both small-sized Khrushchev houses and spacious apartments in new buildings, which gradually began to lead to the eradication of the habit of storing unnecessary things on the loggia that may someday come in handy, reminiscent of itself since Soviet times. But, despite the prevalence of this idea, it is not always implemented, which is associated with widespread myths about the high cost and complexity of the process, as well as the impossibility of its independent implementation due to ignorance of technological nuances. In this article, we will try to dispel all imposed prejudices, and also tell you in detail how to insulate a plastic loggia with your own hands..

Do-it-yourself loggia insulation: necessity or excess?

What is the essence of the motivation of people insulating the loggia? Basically, this happens for two reasons: the insulation of the loggia is an intermediate stage in the insulation of the entire apartment or the fundamental measure of reworking the loggia, previously used as a storage room, into a residential or work space. The effectiveness of the insulation of a loggia or balcony depends not only on the strict observance of its stages and the thermal insulation materials used, but also on many other factors that are not always given due attention. Among the parameters that deserve attention, it is necessary to note the side on which the loggia comes out, the building materials used in the construction of the house, as well as the presence of glazing of neighboring loggias.

Insulation of the loggia is not necessary and is determined by your individual preferences. The loggia does not need thermal insulation measures if you plan to use it only as a storage room. But if, by using a loggia, you dream of implementing certain design projects, of which there are a huge number, even with all your desire, you cannot neglect its insulation, since it not only helps to reduce heat loss, but also prevents the penetration of noise, dust and exhaust gases into the living space … The latter is especially true for those who live in apartments whose windows overlook avenues characterized by heavy traffic and central streets..

When it becomes necessary to insulate the loggia?

This question becomes especially relevant if you decide:

  • equip a greenhouse or winter garden on the loggia;
  • convert the loggia into a gym by installing several simulators there;
  • put a coffee table and trendy rattan chairs on the loggia:
  • combine the loggia with the adjoining room, since in case of neglect of insulation, in winter the outer wall will be constantly covered with condensation, which will contribute to the formation of mold, and the temperature in the room will be stably low.

What you need to remember in the process of warming the loggia?

When planning the insulation of a loggia, remember that the project of loggias and balconies was originally developed in accordance with the requirements for “cold” rooms, and their walls and ceilings do not prevent cold air from penetrating inside. In this regard, remember that technical mistakes made during the insulation process can lead to the fact that the vapors leaving the dwelling can get under the insulation, which will lead to the formation of condensation. This can cause freezing of walls in winter and the formation of ice, as well as the appearance of mold on your walls and those of neighbors, which is in no way compatible with the concept of “comfort”. To prevent this, you need to take care of the tightness of the insulation, which will help you with high-quality thermal insulation materials..

Considering the importance and technological complexity of the loggia insulation, let us clarify that the installation of double-glazed windows on the loggia and the elimination of all visible cracks with the help of foam does not increase the temperature on the loggia to comfortable or as close to them as possible. To achieve the desired effect, it is necessary to insulate the loggia, which consists of several stages:

  • Installation of energy-saving glazing of the loggia, implying the installation of double-glazed windows, and insulation of the parapet;

  • Preparation of relevant documents confirming permission for redevelopment (unification of the loggia) and, in fact, its implementation, as well as covering the loggia with waterproofing material;
  • Insulation of the floor on the loggia, which can be implemented in several ways, described below;
  • Insulation of the walls and ceiling of the loggia.

We insulate the loggia with our own hands photo

Materials for insulating a loggia: a brief description

Currently, there is an extensive line of insulation on the market that can be chosen for insulating a loggia. Among such a variety, you can find both the simplest materials and modern high-tech foam insulation. Taking into account the small dimensions of balconies and loggias, the issue of saving space becomes especially relevant, and therefore, experts recommend giving preference to thin and light materials with a compact structure. In most cases, insulation with a thickness of up to 3 cm is considered the most suitable, however, in the case of combining a loggia with a room or kitchen, the thickness of the insulation increases to 5 cm.

Consider how to insulate the loggia inside with your own hands:

Extruded polystyrene foam, also known as “penoplex” – a material characterized by increased thermal insulation characteristics, moisture resistance and efficiency. Ease of transportation, cutting and subsequent stacking also complete the list of its advantages;

Styrofoam – a material that, despite its fairly frequent use on construction sites, is fragile and fragile. Its main advantages include low thermal conductivity, affordable cost and compact dimensions, namely low weight and small thickness. As for the shortcomings, they also have a place to be. Under the influence of frequent changes in temperature and humidity, foam that has been in use for several years can turn into granules;

Glass wool and mineral wool, supplied in rolls or mats, are characterized by lower thermal conductivity values. The thickness of the material is variable and ranges from 20 to 200 mm. When planning to install these heat-insulating materials, be prepared for the fact that in the process of work you will need special protective equipment – special suits and respirators. Among the disadvantages of the material, one can note the loss of thermal insulation properties when moisture enters;

Materials characterized by the presence of a foil layer. Expanded polystyrene, polyethylene foam and mineral wool are not a complete list of materials that can be coated with a metallized coating. The meaning of its application lies in the fact that when it comes into contact with the foil coating, the air does not cool down, which contributes to the retention of heat and a decrease in the thermal conductivity of the material acting as the base. Thus, foil, performing the function of a heat reflector, successfully copes with this task. The advantage of materials with a metallized coating is that there is no need to install waterproofing materials. Materials characterized by the presence of a metallized coating must be straightened along the entire length and secured with rails.

Among all the above materials, experts recommend giving preference to expanded polystyrene, a layer of which, being duplicated with foamed polyethylene foam, will create a vapor barrier effect. Due to the fact that these materials can be of different thicknesses, it is necessary to trace the pattern that can be traced during their use. Its essence is quite obvious and lies in the fact that the thicker the material used, the higher the level of thermal insulation they provide. To determine the optimal level of thermal insulation, in most cases, complex engineering calculations will have to be made, which are often beyond the power of beginners. In this regard, experts recommend adhering to the following simple rules:

  • If the balcony or loggia, the thermal insulation of which you plan to carry out, is not combined with the room, choose expanded polystyrene with a thickness of 3 cm or more, while the vapor barrier material should not be thicker than 0.3 cm;
  • If the insulated balcony or loggia is combined with the room, the thickness of the polystyrene foam used should be more than 5 cm, and the vapor barrier layer with a thickness of 0.5 cm.

Important! These rules are relevant only if your apartment has no problems with the heating system, the windows were installed in accordance with generally recognized rules, there is a heat source on the loggia, and your place of residence is in the middle zone of Russia.

Before considering how to insulate a loggia with penoplex with your own hands, we outline its main advantages:

  • One of the lowest among other heat-insulating materials, the coefficient of thermal conductivity;
  • Environmental friendliness of the material;
  • Zero level of water absorption;
  • Minimum vapor permeability of the material, which is especially important when used as an internal insulation;
  • High compressive strength;
  • Simplicity and ease of installation activities.

Materials and tools for warming the loggia

From the previous chapter, it becomes clear that the materials for insulating the loggia are selected in such a way that during its operation there are no problems with constantly forming condensate. For this, the insulation used must have moderate moisture resistance, air permeability and low thermal conductivity, which affects the choice of its thickness..

The main materials that you will need when carrying out thermal insulation measures on the loggia:

  • Floor leveling mixture;
  • Wooden slats;
  • Waterproofing materials or mixtures;
  • Heat insulating material;
  • Cladding material;
  • Glue and polyurethane foam;
  • Self-tapping screws characterized by a wide head, nails and dowels.
  • Depending on the finishing method you choose, additional materials may also be required..

Prepare the following set from the tools:

  • Perforator with a drill;
  • Electric drill;
  • Hammer and construction knife;
  • Building level;
  • Spatulas, brushes and rollers.

Loggia insulation guide: sequence of actions

Parapet preparation and insulation

First of all, in the process of warming the loggia, it is necessary to assess the condition of the parapet, which is the external fence of the loggia. It is he who is the weakest link in insulation, since, in contact with the street, he must simultaneously prevent the penetration of cold air, noise, dirt and dust into the room and, at the same time, effectively transmit light. If the external fencing of your loggia is represented by iron rods, it is necessary to erect a parapet, for which they often use light bricks or foam blocks 10 cm wide. or galvanized iron. However, a reinforced concrete slab is most often used as a parapet. In this case, before insulating the balcony, it is necessary to lay wide gaps with bricks, and concrete narrow ones.

Glazing of the loggia is a mandatory stage of insulation

Answering the question of how to properly insulate the loggia from the inside with your own hands, we note that glazing is an obligatory stage of its insulation. As materials for glazing, double-glazed windows of well-known companies or wooden structures are mainly used. The thickness of the glass units installed on the loggias must be at least 32 mm. Also, experts recommend supplementing the installation with expansion profiles necessary for the installation of insulation. Installation of profiles is carried out on both sides and in the upper part of the structure. Having installed energy-saving double-glazed windows, you will make sure that the loggia has acquired a cozy appearance, but the temperature in the glazed loggia has practically not changed, and in winter it will differ from the street by no more than 2 degrees. In this regard, it is necessary to insulate it, but first we will consider the preparatory measures that must be taken before insulating it.

How to prepare a loggia for insulation?

If you plan to combine the loggia with the room or expand the doorway, dismantle the old balcony door and window. At the same time, remember that combining a loggia with a room is considered a redevelopment of a living space and requires coordination of all actions with the BTI.

We will consistently describe the actions that must be taken before insulating the loggia:

  • Check the walls and floor and, if holes are found, fill them with polyurethane foam and wait until it dries completely. After that, apply lubricating waterproofing to the lower part of the wall;
  • Using cement-sand mixtures, level the floor;
  • Waterproof the floor to protect it from moisture.
  • Cover the floor, ceiling and walls of the loggia with waterproofing material, for example, expanded plastic wrap or roofing felt. This is necessary in order to prevent the accumulation of condensation on the surface of the thermal insulation material. During the installation of roofing material, it is laid with an overlap and glued to the base, securing the joints with a gas burner. An alternative to roofing material and plastic wrap is penetrating waterproofing, which is a mixture of thick consistency, which is applied with a roller or brush..

Floor insulation procedure: expert recommendations

Considering the requirements for the floor on the loggia, namely, it should be warm, light enough and durable, the question arises: “How to insulate the floor on the loggia with your own hands?”.

There are three options for arranging and insulating the floor:

  • The surface of the floor is covered with expanded clay and equipped with a concrete screed;
  • Expanded clay can also be replaced with thermal insulation material, such as extruded polystyrene foam or extruded foam, the sheets of which are glued to the floor. From above, a gypsum fiber sheet is laid;
  • Arrangement of wooden logs is made, in the empty space between which the most preferred insulation is placed. Subsequently, tongue-and-groove boards are nailed onto the logs.

Insulation of the walls and ceiling of the loggia

Before answering the question: “How to insulate the loggia from the inside with your own hands?”, We note that the choice of the method of laying the heat-insulating material is determined by the subsequent finishing of the walls and ceiling. If you plan to choose plaster and painting as a front finish, then experts recommend giving preference to gluing or using plastic fasteners for insulation. If in the process of front finishing you will use lining or drywall, the insulation is installed using fasteners.

Consider how to insulate walls and ceilings with penoplex.

  • A penoplex plate is applied to the wall to be insulated from the corner and, using an electric drill, holes are drilled, which are intended for driving in anchors. Experts recommend laying foam-plastic slabs so that they are subsequently staggered. Such a laying procedure allows improving the thermal insulation characteristics of the material along the entire perimeter of the walls, as well as avoiding displacement of the slabs..

  • The next stage of warming involves cladding the walls and ceiling with finishing material, in the process of which you can use moisture-resistant drywall, wooden or slatted lining, as well as wall panels. At the same time, it is important to leave an air layer of up to 1.5 cm between the insulation and the facing material, which will allow the implementation of a wooden crate attached with self-tapping screws, which serves as a frame. The selected facing material is attached to this frame. If you prefer drywall, the joints between the plates are sealed with putty. In the process of finishing the ceiling, give preference to suspended structures, under which you can hide electrical wiring.
  • The next stage is the laying of the floor covering, which can be used as a Euro plank 4 cm thick. After laying the wooden floor, many people prefer linoleum or carpet. If you have installed a concrete screed, experts recommend installing an electric floor heating. Since, in accordance with building codes, it is forbidden to remove central heating, air heaters or electric fireplaces are used to heat the floor. In the case of individual heating under the windowsill, you can place a radiator under the windowsill on the loggia.
  • And finally, they install skirting boards, sockets and switches..

How to insulate a loggia with your own hands video