The roof of the bath, like any other, must protect the interior from external influences. In addition, it must withstand the action of high temperatures and moisture coming from the inside. Therefore, it is important to properly insulate the roof of the bath, and make good waterproofing.
If you do not carry out work on the insulation of the roof for the bath, then problems will begin to arise from the first weeks of operation. Due to the high level of humidity, increased rotting of wooden structures will begin.
Yes, and the formation of ice and frost on the roof elements acts destructively on them.
Types and forms of roofs for a bath
The choice of the type of roof for a bath, as a rule, depends on the project.If the bath is made in the form of an extension to the main building, then, most often, a shed roof is planned. In the event that the bath is a separate building, then it is more expedient to make a gable roof.
Both of these options are quite economical and easy to install, so they are used in most cases.
When choosing a gable roof, it is necessary to correctly design the angle of inclination of the slopes. This factor depends on the climatic conditions of the region in which the construction is carried out.
So, if there is a lot of precipitation in a given area, then it is advisable to plan an acute angle of inclination of the slopes. And in a region where strong winds prevail, on the contrary, the roof should be made more gentle.
Why is it necessary to insulate the roof?
Regardless of which roof structure is chosen, it must cope with its main task - to successfully withstand the external and internal influences exerted on it.
In addition, the roof should contribute to the preservation of heat in the steam room and washing room. Only a well-insulated roof can do this work.
In the event that the bath in the country is used only in the summer season, the question of how to insulate the roof of the bath can be solved quite simply. It is necessary to lay a layer of roofing material or glassine along the crate before the roofing.
In the event that the bath will be used regularly, then the issue of warming should be approached more responsibly.
The choice of material for insulation
Our distant ancestors began to think about how to insulate the roof of the bath.
In the past, materials such as:
- Hemp;
- Moss;
- Felt;
- Tow.
These materials do a good job with the task assigned to them and are environmentally friendly. Therefore, they are still used today by some owners who seek to build a bathhouse exclusively from natural materials. However, traditional heaters also have their drawbacks.
They are subject to rapid decay, and felt or hemp are often affected by moths. In addition, the installation of such a heater requires significant labor and time.
Therefore, most developers choose more modern materials as insulation, among them:
- Mineral wool;
- Styrofoam;
- glass wool;
- Mezhventsovy heater, made on the basis of wood shavings;
- Jute.
It is necessary to choose which insulation to choose for the roof, taking into account your financial capabilities. So, for example, one of the cheapest options for insulation is polystyrene foam.
But this material cannot be called natural, so many developers prefer more expensive, but environmentally friendly materials.
Roof insulation methods
When deciding how to insulate the bath roof, you need to choose in advance the method of laying the insulation material. There are three different ways of laying the material in the frame, the role of which is played by the rafter system, among them:
- Laying layers of insulation over the rafters;
- Laying layers of insulation between the rafters;
- Laying layers of insulation under the rafters.
In order for thermal insulation to be of high quality, it is important that the insulation layer is continuous. Particular attention should be paid to such difficult areas as the junction of the ceiling to the walls, the exit of the pipe, etc.
When performing work, you need to think about ventilation, so an air gap should be left between the thermal insulation layer and the waterproofing material of the roof.
It is also necessary to pay attention to the fact that the waterproofing of the roof does not sag too much, since in this case it will not be possible to ensure sufficient air circulation.
Advice! If fibrous materials are used as insulation, then the air gap should be left larger, since the thickness of the insulation layer can increase by about a third.
It happens that the thickness of the rafters is insufficient so that after the insulation for the roof of the bath is laid, a sufficiently large air gap remains. In this case, the required height will have to be increased with the help of bars or boards.
Stages of roof insulation for a bath
The first stage of work is the treatment of roof structures with antiseptic compositions. This work is carried out in order to protect structures from premature decay under the influence of moisture.
To protect against fire and the rapid spread of fire, flame retardant solutions are used, which also process wooden roof structures.
Next, you need to carry out work on the thermal insulation of the ceiling in the bath. After the ceiling is hemmed, a layer of vapor barrier is laid on it from the attic side.
Advice! If a vapor barrier with a foil layer is used, then it is laid with the foil down, that is, towards the ceiling.
The next step in solving the problem of how to insulate the roof in the bath is laying the insulation. It is necessary to carefully approach this issue so that the thermal insulation is really of high quality.
If the material is laid between the rafters, then it is cut so that the width of the sheet is slightly larger than the distance between the beams (this recommendation applies to fibrous types of insulation, when using foam, the sheets must be cut exactly to size).
With continuous laying of the material (under or above the rafters), it is necessary to lay the sheets with an overlap. And if several layers are used, then make sure that the joints of the lower layer do not coincide with the joints in the upper layer.
Next, waterproofing material is laid, and the whole structure is covered with boards.
To make the bath ceiling more resistant to moisture penetration, a so-called waterproofing lock is sometimes used.
To do this, greasy clay is mixed with sawdust and this mass is applied to the rough ceiling with a layer of 15 centimeters. The joints between the ceiling and walls must be treated especially carefully.
When insulating the roof in the bath, one should not forget about ventilation. The construction of some particularly complex system is not necessary here, it is enough to arrange a draft in the attic space. To do this, make dormer windows or just air holes. You can also install a ventilation chimney.
Thus, carrying out the insulation of the roof of the bath is a rather complicated and time-consuming work. Therefore, the choice of materials and its implementation must be taken very seriously.
Did the article help you?