Do-it-yourself floor insulation on the balconyTogether, We Can Win.

It is quite difficult today to find a balcony without minimal finishing. Modern materials and metal-plastic double-glazed windows make it possible to turn this part of the home into an additional room or place to relax. In summer, such a system performs its functions perfectly, while in winter and in the off-season it becomes uncomfortable on the balcony. The temperature drops there, and the floor becomes especially cold. Therefore, many property owners are wondering how to provide maximum convenience and create conditions that will make them feel comfortable in this part of the apartment in any weather. It is not advisable to insulate the floor on the balcony if the walls are not insulated. The easiest way is to lay a layer of thermal insulation between the surface of the ceiling slab and the floor. On the market today you can find many materials that are designed for such purposes. The choice of insulation The floor on the balcony without insulation will remain cold. Therefore, it is worth solving this issue by choosing the appropriate material. The most advanced and modern solution is penofol. It is a foamed polyethylene, which is protected by an aluminum film. The insulation is flexible, which makes it easy to install and install. Having familiarized yourself with the assortment of the market, you can find modern versions of penofol with one-sided and two-sided protection made of metal foil. If you want to provide not only heat, but also waterproofing of the floor, you can prevent the formation of condensation. For this, it is better to purchase double-sided material. It is realized in rolls, and to connect the strips and pieces, the joints are glued with aluminum foil. If you want to achieve a better level of heat retention, then it is better to use penofol in conjunction with other insulation like penoplex.

Is it worth using polystyrene The floor insulation on the balcony can be carried out with polystyrene foam. This type of thermal insulation is the most common and cheapest today. Today, there are slabs of different thicknesses on sale, which is very convenient when working on thermal insulation with raising the level. The material is pre-cut into pieces and positioned between the board and the topcoat. All gaps are filled with polyurethane foam. Foam has one drawback, which is fragility and stiffness. In addition, when working with it, a lot of small debris is formed. Use of expanded polystyrene foam Insulation of the balcony floor can be carried out with expanded polystyrene foam. Its characteristics are selected in accordance with the requirements for thermal insulation, environmental, fire and biological safety. Penoplex is flexible, lightweight, does not rot, differs in chemical inertness, does not burn and is ready to serve for a long time, without creating comfortable conditions on its surface for the emergence and development of mold or mildew. If you decide to insulate the balcony floor with expanded polystyrene, then you can use expanded polystyrene, which is sold in sheets. Their thickness varies from 20 to 50 mm. At the price, penoplex is in the first place together, but it is the optimal thermal insulator, with which it is comfortable to work.

Use of mineral wool Thermal insulation of the floor on the balcony is often carried out with mineral wool. This material is time-tested. It is based on basalt threads or fiberglass. Minvata does not absorb water, is inert to chemical influences, does not burn, and mold does not multiply in it. If we compare it with other heaters, then the mineral wool differs in that it can be placed in any gap. However, the material has one drawback, which is expressed in the fact that when working with it, you need to use personal protective equipment, because its fibers are very sharp and fragile. When exposed to the skin, they irritate, therefore, cotton wool causes severe itching. Preparation for work At the first stage it is necessary to carry out preparation. For this, the balcony slab is protected with a screed to exclude cracks and destruction at the edges. But first you need to consult with the specialists of the organization that deals with the operation of the house. Sometimes, for safety reasons, it is not recommended to weight the stove.
Preparing the mortar If the building is new and the balcony is strong enough, then you can start laying the screed. The coating should not be heavy or thick. Its mass should be less, and the structure should be durable so as not to crack at a minimum thickness. Insulation of the floor on the balcony with expanded clay allows to achieve the mentioned goal. Additionally, you can use perlite, but it involves the need to use a complex mixing technique, in the process you have to use a concrete mixer. This leads to the fact that expanded clay is better suited for home conditions. For work, you must mix a mortar of three parts of building sand, part of cement and 0.1 part of lime. Quarry sand and the one that is collected in nature will not work. You must purchase construction material that is cleaned and sieved. Part of the cement is mixed with expanded clay. To reduce the mass, the volume of cement can be 25%. The dry composition mixes well until a uniform color. Then you can add water and knead. The solution should acquire the consistency of thick sour cream.
Pouring the screed In the next step, you can start laying the screed. In the case of a balcony, you can do without the use of beacons, since the layer will turn out to be thin, about 5 cm. The space must be waterproofed around the perimeter. This can be done using polyurethane foam or self-adhesive tapes. The scope of work is small, so bitumen is usually not used. It is necessary to start from the far corners of the door. The layer is stretched and aligned with the rule as you work. The level is controlled by an appropriate tool. The screed dries well, only after that it can be considered that it is suitable for walking. This will happen in 3 days. Experts advise keeping the floor for about 12 days, periodically wetting it with water and covering it with a film. This will provide the screed with the greatest strength.
Floor construction The floor level on the balcony should be close to that in the adjoining room. Usually this surface is made slightly lower. If it is necessary to raise the balcony floor in relation to the common floor in the apartment, it is better to provide a recess in the form of a pocket at the door. This will eliminate the penetration of moisture into the room. Preparation of materials and tools To carry out floor laying work you will need: tape measure; wooden beam; electric jigsaw; insulation; sheet material; construction foam cylinder. In the absence of a jigsaw, you can use a saw for wood. Select the timber of the desired section. Lags will do. To cover the surface, you will need sheet material of the type: sheets of thick plywood; boards; Chipboard. If the thickness of the latter is about 17 mm, then the material can be laid directly on the logs. Having previously created a grid of boards, you can lay 10 mm sheets on the surface. You can level the base with plywood or chipboard. The timber is cut to size and laid across the balcony. The distance to the walls should be 5 cm. The cut parts are located at a distance of 0.5 m. They are fixed to the surface of the slab. This can be done using self-tapping screws with a plastic stopper. It is inserted into the concrete to prevent splitting. From the edge of the timber to the first self-tapping screw, it is necessary to maintain a distance of within 10 cm.At this stage, you can hardly follow the floor level, because this task will be performed by subsequent work. Insulation laying technology Insulation of the floor on the balcony with foam plastic provides for preliminary cutting of the material into separate pieces to fill the gaps between the timber. The level of thermal insulation should be level or below the surface of the timber. The gaps should be minimal. Gaps are filled with foam where necessary. If you decide to use mineral wool, then it is laid in free space. With the installation of penofol, everything is easier. The strips are cut to size, but their length should be 40 cm more than the length of the balcony. As a result, you should have about 200 mm of excess insulation. To connect the pieces, it is necessary to provide an overlap and glue the seams with aluminum tape.
Reviews of foam insulation Before you start insulation of the floor on the balcony with foam, reviews and tips should be read. After reviewing them, you can understand that this material is easy to install and cheap. It keeps its shape perfectly, therefore it is widely used in construction and repair. Consumers consider its flammability as the main disadvantage of foam. When rubbed, the material begins to release a choking hazardous gas. Consumers also like the fact that foam is affordable. It has a convenient design and is supplied in the form of sheets. Sometimes the material is applied in the form of balls or chips. Home craftsmen emphasize that this thermal insulation is versatile, because it can be used not only for the floor, but also for the walls and the ceiling. It is very simple to process sheets, for this you can use an ordinary knife or hacksaw. Holes of any size and depth can be easily drilled into the slabs. This is especially useful when it is necessary to install canvases in hard-to-reach places. Polyfoam is also good in that it can be glued to almost any surface, and after the composition has dried, the base can be further processed for decoration. Additional information on the use of foam for floor insulation If you decide to use foam for thermal insulation, then the technology will remain almost the same as described above. At the first stage, a polyethylene film is laid on the base to protect the material from moisture. It is fixed with construction tape. Next, a frame is mounted, between the elements of which thermal insulation will be laid. After that, the foam is laid out on the floor, and its sheets are additionally fixed with glue. You can use liquid nails for this. The elements should be located as tightly as possible to each other. If you plan to lay several layers, then their joints should not coincide. Seams are sealed with sealant. The floor covering is laid on top. If the balcony floor is insulated under the tiles, then it is better to use fiberboard as a rough surface. Some put a thin screed on top, otherwise the foam may bend or crack.
The nuances of laying mineral wool Before any work on thermal insulation, the base must be prepared. For this, the surface is checked for cleanliness and the presence of foreign objects. The material must be dry. Cracks and chips are filled with a cement-sand mixture or alabaster. If there is damage between the panels, then they are filled with polyurethane foam or the same solution. Before insulating the balcony floor with mineral wool, it is necessary to lay waterproofing, for this, roofing material is usually used. It is rolled along the length of the room. An overlap of 200 mm should be provided between the sheets. The edges of the material should fit into the walls. The joints are additionally glued with tape. Next, lags are installed. For this, wooden slats are used, which are pre-impregnated with an antifungal composition. The material is additionally dried within 2 days. The size and thickness of the slats may vary depending on the level to which the floor needs to be raised. The timber can be fastened to a concrete base or using straight hangers. In the first case, we are talking about a technology that provides for the need to use pads, with the help of them you can level the horizontal level. The bars can be fixed to corners or hangers that are mounted on the base of the floor. Insulation laying Floor insulation on the balcony with mineral wool is carried out on the crate. The sheets of thermal insulation are cut, while the markings need to be corrected. About 70 mm is added to the parameter so that the edges of the canvases fit snugly against the joists. The material is inserted into the space between the slats. The sections of the frames are filled with insulation. The gaps are closed with polyurethane foam. When choosing stone or mineral wool, it is better to prefer cloths with a thickness of 50 mm. If you want to form a thicker layer, then one canvas should be superimposed on another. But mineral wool should not be strongly pressed down, since the air in it acts as a heat insulator. If it is forced out of space, the thermal insulation qualities of the material will decrease. At the end of the work, the structure is closed with plastic wrap or other material that does not allow moisture to pass through. The canvases are fixed to the wood, and a furniture stapler should be used. At the next stage, you can start laying massive boards, YUSB, chipboard or plywood sheets. Additional nuances of using penoplex Penoplex floor insulation on the balcony allows you to achieve good results. For work, the slab should be cleaned of old finishing materials, dust and dirt. The substructure is checked for integrity, especially where the material joins the wall. If the base has cracks or chips, then they are covered with plaster. After the solution has solidified, the surface must be primed in several layers.
Next, the lags are laid, they are wooden supports, between them the insulation will be located. The distance between the lags should not be too small, because the thermal insulation will have to be cut into separate segments. Instructions for insulating the floor on the balcony with penoplex provides for laying the insulation between the logs on the film. The surface is closed again with several layers of foil. On top of the lag there will be a rough covering, which is then finished off. Thermal insulation under floor heating Some people make a balcony a full-fledged room in their apartment. If you, too, decided to follow the example of such real estate owners, then you should use the technology of laying the underfloor heating system. To do this, first the surface is leveled, thermal insulation is laid on it, which acts as the basis for fastening the mounting tape. It is placed in its place, and a heating cable is pulled over it. Insulation of the floor on the balcony under the warm floor allows you to make the area of ​​the apartment even larger. The next step is to place the thermostat in the place where it will be convenient for you to use it. The floor area is filled with cement-sand mortar, and then ceramic tiles are laid. Warming a balcony with a warm floor can significantly increase the weight of the structure. Glazing and wall insulation When insulating a balcony, it is necessary to change the old frame, which acts as a glazing system. If this is not done, then even the highest quality materials will not allow achieving the desired result. The glazing of the balcony and the insulation of the floor necessarily provide for filling the gaps in the parapet area, as well as the walls. Cold air can penetrate through them. Foam plates can be fixed to the walls for thermal insulation. For this, cement glue is usually used. For a more secure attachment, you can use dowel-nails with wide heads. After installing the insulation, a heat insulator in the form of foam foam is attached to it. Better to install it in whole pieces. The insulation of the walls and floor of the balcony is also accompanied by finishing work. To do this, you can use plastic panels that are installed on a pre-assembled crate. For her, the thickness of the slats should be 5 cm.
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