The correct insulation of the balcony guarantees thermal, acoustic comfort and protection against humidity and infiltration. Do you want to enjoy these advantages? Find out below what are the suggestions and products recommended by the specialists of Macostore for Thermo, Hydro and Interior and the soundproofed outside of the balcony.

The advantages of correct isolation of the balcony: why is this process important?
If you intend to organize or renew the balcony, take into account its isolation. The works of Thermo, Hydro and Phonoids correctly made and with the right, high quality materials, can offer a series of great advantages to the owners of houses:
- Reduce heat leaks and save energy – the corresponding thermal insulation contributes to reducing the costs for heating the house in the winter months and to cool it during the summer;
- Greater comfort – A well -insulated balcony will maintain a constant and pleasant ambient temperature; In addition, the soundproofing decreases the disturbing noise of traffic, the buildings that take place nearby, etc.;
- Finishes protection – By eliminating the infiltration of water and humidity from the balcony, you will protect the internal and external finishes and prevents the appearance of mold and hygraxia;
- Environmental protection – If you use less resources for the heating and cooling of the house, you will also contribute to the protection of the planet; In addition, it is possible to opt for sustainable and recyclable insulating materials, such as mineral wool or cardboard chalk cards;
- increasing the value of the property – The isolation of the balcony is an intelligent investment, which will be reflected in the highest price that you can get for the sale of your property.
Insulation of the internal balcony: suggestions
The balcony is an additional space that you can intelligently use for storage, relaxation, organization of an office, extension of the living room, kitchen or bedroom. Often it becomes an area of interest only when infiltrations or spots of humidity and mold appear, the cold walls are heard in the months with low temperatures or when the noise from the outside disturb.
Here’s what you can do inside to effectively isolate the balcony:
- Hydroise the balcony; It uses a quality product and applies a self -adhesive elastic on the threshold between the balcony and the house, as Mapeband Sa; This is suitable for sealing and waterproofing the area between the floor and threshold or walls, regardless of the type of support;
- If thermal insulation is not possible outside, both the floor and the walls can be thermally insulated with mineral wool;
- For the upper thermal and sound insulation, choose mineral wool with acoustic and mounted properties in a metal structure, closed with Phyno-absorption absorption chalk card.
Balcony floor insulation
It is necessary to isolate the balcony floor, whether closed or directly exposed to rainfall. The infiltrations after the rains or the snow can cause discomfort and even problems with the neighbors, if the water penetrates through the dish and destroys the finishes in their home. In addition, infiltrations on the balcony can reach inside your home.
Before starting the waterproofing works of the balcony floor, it is good to know how many aspects:
- Hydro insulation can be applied on the existing excavation;
- If you pour a new excavation, make sure it has an adequate drain slope;
- Prepare the floor for the correct application of waterproofing, cleaning dust, oils, fats and paints.
You can find more about the impermeability of the balcony from this article on the macostter’s blog.
Tips to isolate the balcony outside

Some balcony isolation works can be performed outside, in which case you will have to respect the rules to work high. Here’s what you can do:
- Thermally isolate the exterior of the balcony with mineral wool or expanded polystyrene, to save space inside; For better stability and durability, it is recommended to correct the tiles with adhesive for the thermosystem and with special dowels;
- Use the fiberglass reinforcement network and an elastic for the joints between the balcony and the facade of the house;
- A very important phase is the seal of the windows; The holding strips must be mandatory and inside and outside; These can also be used to isolate the balcony door.
For more information, access our article «How to properly seal windows or wood».
Open balcony isolation: Recommendations
In order to reduce the risks of infiltration to the neighbors or its home, it is essential to isolate the concrete plate of the open balcony, because it is constantly undergoing time. You can use flexible waterproofing waterproofing. It is a cement -based mortar, ideal for the protection and waterproofing of concrete surfaces.
For the best results, the waterproof waterproofing is applied in 2 layers. In the first layer, the reinforcement network is included (very important to be resistant to the alkaline environment) and the elastic Mapemband.
If you want to close the open balcony, we recommend the waterpanel cement plates resistant to humidity. These represent an advantageous alternative from the point of view of the benefits of BCA, times or bricks: they are light and do not load the resistance structure, they have greater resistance to water and weather, prevent the development of the mold and are not fuels (do not burn and do not keep burning).
Thermal insulation of the balcony
Polystyrene is one of the popular materials to isolate the balcony or home in general. The expanded plates (EPS) are used for the thermal insulation of the external walls, while the extruded plates (XP) are used for floors, since they have high mechanical resistance and a reduced steam permeability.
Another material often used in thermal insulation is mineral wool. It has excellent thermal and sound insulation properties, it is not fuel, durable and has good water resistance. The basalt wool has a better compression resistance than the glass, which is why it is recommended for the thermal insulation of the facade, external walls and floors.
The basaltic or formaldehyde mineral wool does not emit toxic substances and is recommended more for the interior. At the same time, it is produced by materials that are in abundance of nature and can be recycled.
Insulation of the hydroelectric balcony

For the waterproofing of the balcony, you can use different types of materials:
- Terrace waterproofing products – The liquid waterproofing membrane is flexible, continues and resistance to UV rays; It can be applied on horizontal or inclined surfaces, with a roller, a bin or a spray;
- Bicomonent Cimentosa waterproofing for the floor – is applied in a double layer and must be protected by the ultraviolet and traffic with a type of tiles or another type of floor;
- Warping Bandaewage – is essential for quality waterproofing; It is mounted on the joints between the balcony and the house, to prevent infiltrations;
- Bituminous sealant – It can be used to isolate the steps from the balcony, to repair the Trogoli, to seal the joints from the illuminators, etc.
Before applying the waterproofing material, it is essential to prepare the correct surface. This phase includes the cleaning and complete drying of the balcony, the removal of all waste and the old waterproofing and carefully control of the surface to detect cracks or losses that could affect the efficiency of the new waterproofing.
Once the waterproof material is applied, it is important to leave enough time to dry and strengthen before using the balcony. It is also advisable to periodically verify the conditions of the work, to detect any damaged areas or affected by the floating weather conditions.
Soundproof balcony
If you want to create a quiet and comfortable environment on the balcony and inside your home, the Fonosi phase is very important:
- Make sure that the windows and doors of the balcony offer a high degree of acoustic insulation; You can opt for PVC windows, with 3 glass sheets;
- It isolates the windows of the windows and the door with the expandable adhesive tape that the climate is Fiden Exo, for better soundproofing, but also to seal the time, the wind and to improve the degree of thermal insulation;
- Opt for plaster cards with sound insulation, such as Knauf Vidiphonic and Knauf Silentboard;
- It mounts special basalt cotton cotton cotton plates, with soundproofed properties, such as the 40 kg/mc acoustic rock; When choosing the materials for the thermal insulation of the balcony, not only follow the thermal coefficient and the thermal resistance R, but also the density and resistance to the air flow.
Common errors in the balcony isolation process
One of the frequent errors in the balcony insulation process is the inadequate choice of materials. Do not hesitate to contact us when you need help for the selection of products suitable for the provision or renovation project and place the order.
Another error that can endanger the quality and duration of the balcony isolation works is the abandonment of the preparation of the supports and the specifications in the technical sheet of the products. For example, the waterproofing of the master liquid must not be applied to temperatures lower than 8 degrees Celsius or when they are very high, because the procurement, drying and waterproofing properties will be affected.
We invite you to discover intelligent waterproofing solutions to renew the balcony.
In the case of thermal insulation, the works performed inappropriately can lead to the formation of thermal bridges. These represent the areas according to which heat loss is favored and, therefore, the efficiency of the thermal insulation layer is reduced.
At the same time, it is essential to guarantee adequate ventilation. Otherwise, the humidity accumulated inside the balcony will favor the appearance of mold and damage the isolation, respectively the finishes.
Thermo, hydro and solid isolation of the balcony inside and outside is essential to maintain a constant temperature at home, save energy for heating and cooling the house, keeping away the infiltration and humidity, as well as to reduce the level of noise from the outside.
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