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Bathroom Insulation

Bathroom Insulation

To make the bathroom comfortable and consume less energy, we must create a barrier against cold, heat and noise. The best solution is to thermally insulate the bathroom. With this, we will reduce heat transfer to or from the environment through the use of insulating materials or low thermal conductivity. If you do not know how to do this, in this post we will show you how to thermally insulate a bathroom.

How do you insulate the bathroom thermally?
The materials used for thermal insulation are porous or fibrous, such as mineral wool (rock or glass wool), expanded polystyrene, extruded polystyrene, polyurethane foam or cork, among others. Mineral wool is the ideal insulator by allowing a high degree of energy savings, minimizing energy consumption and thus reducing environmental degradation. In a time like the present, energy efficiency is an indisputable value that mineral wool, as a thermal insulation, enhances, favors environmental conservation and reduces energy bill. In addition, if rehabilitation or thermal repair is carried out with appropriate technical solutions (for example, using solutions of mineral wool), which simultaneously perform acoustic rehabilitation against external noise.
What types of insulation materials are there?
• Glass wool. Glass wool is manufactured by dissolving sand to a high degree of silica, calcium carbonate, borax and magnesium. It is generally very light, pliable and yellow, pink, or white. They can be found loose and on mats, either as sheets or rolls. It is one of the most widely used heat insulators in the world, and it is also an excellent sound absorber.
• Mineral wool. Mineral wool is made from igneous rocks that have a high content of silica and small amounts of basalt and calcium carbonate. It is denser than fiberglass and most of it is gray with black spots, although there are also some that are almost white. Their high melting point allows them to maintain their insulating properties unchanged even at very high temperatures. They come in preformed mats, coils, blocks and valves.
How do we put thermal insulation for the bathroom?
If you want to learn how to install thermal insulation for repairing a bathroom, follow this step by step:
1. Take out the hole. Then a room is left and mineral wool is placed on the back of the wall by mechanical fasteners.
2. Apply a special mortar to stabilize this material.
3. Tiles with a hollow brick, to which you must later add the finishing plaster. This type of solution offers an improvement in the thermal and acoustic protection of the wall that will depend on the technical characteristics of the mineral wool used and its thickness.
4. Proceed to lining the walls and floors.
5. Decorate the bathroom with all the necessary items to enjoy this stay. Keep in mind that with this type of insulation you will lose some space.
The energy saved inside the shower will be a real money saver. It will not only reduce your expenses, but also help reduce the emission of pollutants into the atmosphere and make better use of the world's energy resources.
If you have any questions, you can open a new thread in the Forums. If you have already put heat insulator in the bathroom, upload your project to the Projects section.

Thermal insulation of the bathroom with cork insulation
To insulate the bathroom, you can use cork insulation, which must be additionally treated with a special wax impregnation, which increases the moisture-resistant properties of the heat-insulating material.
The technology of installing cork insulation is quite simple; They are glued to the walls and ceiling of the room in the same way as wallpaper. To install a cork heat insulator, you must use special cork adhesives.
bathroom floor insulation
In order to prevent heat from escaping into the floor, various insulation materials are used: expanded polystyrene, extruded polystyrene foam and polyurethane foam.

In order to prevent heat from escaping into the floor, various insulation materials are used: expanded polystyrene, extruded polystyrene foam and polyurethane foam. The use of foam boards is extremely rare. This is due to the low density and rigidity of the foam boards. The material is brittle and can release harmful substances when heated.

Extruded polystyrene foam has slightly improved properties compared to foam: stiffness, rigidity, vapor permeability and high thermal insulation. But this material, in order to ensure the required level of thermal insulation, requires the application of large (more than 5 cm) insulation layers. This significantly raises the level of the floor, especially when considering the layer of the heating element, the leveling layer and the decorative coating (laminate, ceramic tiles, etc.). When applying a concrete screed, to ensure the required strength, the floor must be additionally reinforced with a reinforcing mesh.

Before installing the heat-insulating layer, it is necessary to lay a waterproofing film or to prepare the surface with penetrating waterproofing agents.

The most reasonable is to create a heat-insulating layer using polyurethane foam. This material has the lowest level of thermal conductivity, so it is enough to apply a relatively small layer of material (2 cm) to ensure the required level of insulation. Moreover, polyurethane foam has the properties of a vapor-conducting membrane, which allows moisture to pass through from the base, but does not allow it to penetrate deeply into the heat insulator.
Before installing the heat-insulating layer, it is necessary to lay a waterproofing film or to prepare the surface with penetrating waterproofing agents.
A good solution for heating the bathroom floor is an underfloor heating system.

At the initial stage, it is necessary to take care of high-quality waterproofing of the floor of the room, where there is moisture. It settles on the walls of the bathroom, gradually flows down and accumulates on the floor. Fall-off (soil) or adhesive-type waterproofing (water barrier films) are used as waterproofing agents.

If the task is to eliminate the penetration
Moisture completely, it is better to use liquid rubber as a waterproofing agent.

In a warm floor base, a heating system with electric elements can be used, the gaps between which are filled with special mixtures, the base is made by the obligatory creation of a waterproofing layer.

The underfloor heating system has a large heating capacity due to the relatively large heating area. Due to this, it is not necessary to create high temperatures for heating the room.

What materials can be used for insulation?
• Isolate the bathroom from the inside
• Isolating the bathroom
Today there are many insulation materials that are used in cases where it is cold in the bathroom. Some of them have been used for a very long time, while others are relatively recent. Among all this diversity, the following can be distinguished:

• mineral wool;
• Cork insulation for walls in the bathroom.
• Styrofoam.
Let's consider each option in more detail:

The most common option for insulating the walls of the bathroom is mineral wool. This is not surprising, because this insulation, due to its characteristics, allows you to avoid the appearance of condensation, as the walls continue to "breathe". But this insulation also has negative features. In this case, we are talking about a high hygroscopicity. That is, so that steam and moisture do not have a negative effect on the material, while insulating the walls in the bathroom, it is necessary to insulate them.
Wax-saturated cork insulation for the bathroom is somewhat more expensive than the first option, but at the same time it is very effective. The insulation process itself is not very complicated and includes two main stages:
• Surface priming
• Adhesive cork insulation using a special glue.
Styrofoam is known for its low cost. Depending on the type of finish, it must be glued to the surface, or inserted into a frame made of a galvanized profile, which is especially important for those cases when drywall is used as a finishing material. Using polystyrene, you can insulate the bath with your own hands, without the help of specialists.

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