How to insulate a cold bathroom - effective ways for a penny

Coldness in the bathroom is too bad! Of course, this is extremely uncomfortable. But it is also dangerous for health - a wet person in the cold can easily catch a cold. And children and sick people shouldn't be taken to such a bathroom at all! Each apartment owner thinks about how to insulate a cold bathroom, and is looking for effective ways for a penny.

Read in the article

  • 1 Causes of coldness in the bathroom
  • 2 Ways to deal with the cold
  • 3 Conclusion

Causes of coldness in the bathroom

There are only two reasons - little heat enters the bathroom, but many leave. And now - a more detailed analysis of the situation.

The heat source in the bathroom is hot water, which flows through the pipes of the hot water supply system, heated towel rail and the bath itself when it is filled with hot or warm water. Heat also comes from the apartment when the bathroom door is open. And heat loss occurs through ventilation hood, through any technical gaps - where water pipes pass through walls, floors and ceilings. If more heat comes in than is lost, then it will be warm in the bathroom, if the balance of income and consumption is negative, then it will be cold.

How to insulate a cold bathroom
PHOTO: uteplix.com
Cold bathroom

Ways to deal with the cold

The most obvious solution in this case is to install an additional heat source in the bathroom. But the solution is uneconomical and not very secure. In those houses where there is no central heating and hot water supply, there is a gas boiler in the bathroom. When she works, the room is warm enough. And if there is no column, then you have to drag electric heater. But his work costs a lot of money. And placing an electrical appliance in a room with high humidity and with water jets and splashes is not the safest solution. Better not to. This means that you need to either install a heating radiator or fight heat loss. The first option is too expensive, the second option is the most reasonable.

As a rule, the bathroom is located so that not a single wall of it extends to the outer contour of the house. Although such a layout is found in old buildings. In order to insulate the wall from the side of the facade, a large number of all kinds of approvals and permits will be required, while it should be remembered that work at a height is extremely expensive. In this case, the bathroom will have to be insulated according to all the rules for insulating a living room - to glue the windows (and this occurs), paste over the inner walls with heat-insulating material, install radiators heating.

In modern homes, the bathroom is manufactured in the factory as a double-walled cubicle and installed inside the apartment. Depending on the layout, one wall can go out onto the staircase, border on the elevator shaft, but still remain inside the house - and even inside the apartment. In this case, external work on the wall from the side of the elevator shaft is not allowed.

If it is still cold in the bathroom, then the insulation work will have to be carried out inside.

This option, despite a certain complexity, has many positive aspects:

  • the bathroom will probably be insulated;
  • its cosmetic repairs will be carried out;
  • the elimination of the "cold room" will insulate the entire apartment.

A set of special requirements is imposed on heat-insulating materials:

  • dryness of the walls is ensured by the minimum vapor permeability of the material;
  • to minimize heat loss, a minimum thermal conductivity is required;
  • ensuring fire safety due to the use of the G1 flammability class;
  • absence of toxic substances in the composition;
  • manufacturability of application.

For wall insulation, mineral wool, foam glass, polyurethane foam plates, and expanded polystyrene are used.

Mineral wool is best used in the form of mats. They have a higher rigidity, it is more convenient to attach them between the metal guides of the frame. Since mineral wool is hygroscopic, it must be carefully separated by waterproofing and vapor barrier layers from contact with moisture.

Mineral wool mats
PHOTO: ecotermix.ru
Mineral wool mats

It is very easy to use foam plates for insulation. The material has high moisture-repellent and thermal insulation properties. When installing it, it is necessary to monitor its integrity and carefully seal the seams and joints of the material. Otherwise, moisture will form under it, and mold and fungi will start in it.

Expanded polystyrenePHOTO: uteplix.com
Expanded polystyrene

Liquid polyurethane is a good insulation material. It allows you to make a monolithic uniform coating, which excludes the formation of cold bridges and the accumulation of condensate under the heat-insulating layer. The material is biologically and chemically resistant, therefore completely eliminates the formation of fungus and mold.

Applying liquid polyurethane to the wallPHOTO: ecotermix.ru
Applying liquid polyurethane to the wall

Foam boards are rarely used due to their mechanical fragility.

"Warm plaster mixes" provide a uniform coating without cold bridges. Before plastering, it is necessary to prime the surface to be insulated.

Plastering a cold wallPHOTO: ecotermix.ru
Plastering a cold wall

A lot of heat goes off through the floor. To reduce this negative component of the thermal balance, the floor should also be thermally insulated. Before starting the installation of thermal insulation, a waterproofing film or a penetrating primer is laid. A more effective way, but also more expensive, is to create a "warm floor", water or electric. Moreover, the latter option is more preferable due to the speed and lower cost of installation.

Warm floorPHOTO: sc71perm.ru
Warm floor

Conclusion

Of course, it is much more pleasant to perform all the necessary procedures in a warm bathroom. In order to insulate the bathroom, you will have to spend some work and more or less money. It already depends on the level and volume of the owner's wishes, his knowledge of the methods and ways of solving this problem and the volume of his wallet.

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