Bath roof insulation can be done independently. The quality of thermal insulation will not be in doubt if you correctly select the thermal insulation material and determine the appropriate method. Content:
- Hem technology
- Wall insulation
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Material
- Mineral wool
- Expanded clay
- Clay
The roof of the bathhouse is a special element of the building. It is attacked by high temperatures and steam from the inside. This distinguishes it from the roof of ordinary living quarters. The sauna roof must have drainage and good ventilation. In order for the bath to function normally, you need to make good waterproofing and insulate the roof. Different technologies are used for hemmed and flat ceilings. First, decide which one is best to apply in your case.
Hemmed sauna roof insulation technology
The option is ideal for a sauna with a used attic space. In this case, layers of steam and waterproofing are laid on top of the boards that are hemmed and attached to the beams of the ceiling. It is necessary to insulate the roof of a bathhouse with your own hands using a hemming method in the following sequence:
- We carry out thermal insulation of the ceiling in the room (we hem it).
- From the attic side, we lay a vapor barrier material on it. The foil layer (if any) is laid down. The insulation should fit as tightly as possible into the space between the beams and close the gaps. The most suitable layer thickness is 10 cm.
- We lay the material for waterproofing. Please also note that the waterproofing film must consist of a vapor-proof layer, and its joints must be glued with tape. We put boards or moisture-resistant plywood on top.
- If necessary, we make a special waterproofing lock to increase the vapor resistance of the roof. At home, a mixture of greasy clay and sawdust is used for this. It is applied to the ceiling with a layer of 20 centimeters. We pay special attention to the joints between the walls and the ceiling.
- We create a ventilation system in the attic of the bath. This is necessary to remove the steam to the outside. It is enough just to make a draft or install a chimney. It is not recommended to raise the ridge of the roof for this purpose. If the optional canopy is not available, rainwater can enter this hole.
Layered roof insulation
This technology of bath roof insulation is most often used for small wooden baths. In this case, boards sheathed from below and insulated from above are cut into the crowns of the log house. The roof of the bathhouse is insulated in this way in stages:
- We treat wooden elements with antiseptics and fire retardants.
- We fix the vapor barrier film from the inside with a construction stapler.
- We glue the joints with metallized tape.
- We close the boards from above with a layer of vapor-permeable waterproofing. It is needed to remove steam from the floorboards, otherwise they will rot. For this reason, plastic sheeting is not suitable for waterproofing.
- We put insulation on top of the waterproofing layer.
- We attach another waterproofing layer with a stapler to the finished floor. It will protect the insulation from condensation drops.
Sauna roof insulation material
The quality of the room insulation primarily depends on the choice of material. Therefore, it must meet certain requirements: be resistant to deformation and high temperatures, not subject to mold formation, not rot, as well as repel moisture and be environmentally friendly.
A wide range of heaters is offered on the market today. You can choose the one that best suits the price and quality:
- moss (about 17 thousand rubles);
- felt (from 130 rubles per kilogram);
- down (about 5 thousand rubles per package);
- polystyrene (from 55 rubles);
- expanded polystyrene (from 45 rubles per sheet);
- tow (about 40 rubles a kilogram);
- jute (from 7 rubles per running meter);
- glass wool (from 600 rubles per roll);
- mezhventsovy insulation (from 25 rubles per square);
- clay;
- mineral wool (about 400 rubles per roll);
- expanded clay (about 1,700 rubles per cubic meter).
Mineral wool for insulation
Thermal insulation of the roof of a bath with mineral wool is the cheapest and easiest option. This material is also called basalt fiber. It has excellent thermal insulation properties and has a chaotic fibrous structure. Mineral wool is characterized by high fire resistance, low thermal conductivity and good strength. For high-quality insulation, use a layer of material of at least 10 cm. As for the shortcomings, here you can highlight poor moisture resistance. This insulation has a porous structure, so it allows steam to pass through. This deteriorates its thermal performance.
Expanded clay as insulation
This material is made from natural raw materials. Thermal insulation of the roof of a bath with expanded clay has many advantages. These include:
- high thermal insulation;
- soundproofing properties;
- fire resistance;
- light weight;
- low price;
- environmental friendliness;
- resistance to the formation of fungi;
- durability.
Thermal insulation material is used even in extreme climatic conditions. The maximum efficiency of the insulation can be achieved by filling a layer of 20-40 cm. On top of it, it is imperative to make protection from moisture. Expanded clay can absorb steam and dries for a long time. It is also very fragile. Therefore, it is not recommended to cover it on a plank surface without a backing.
We insulate the roof with clay
This method has long earned the title of "folk". Clay is a durable, cheap and environmentally friendly material. It is often mixed with sawdust or straw. The layer of such a solution for maximum efficiency should be about 20-30 cm. Insulation of the roof in a bath with clay is suitable for both brick and wooden rooms. However, this process is the most time consuming and time consuming.
Watch a video about the insulation of the sauna roof and ceiling:
You can insulate the roof of the bath yourself. In this case, it is undesirable to save on materials, because a high-quality thermal insulator will last for many years. At the end of the work, the interior decoration of the attic is usually performed. Knowing how to insulate the roof of a bath will help you do this process yourself. The roof will perfectly fulfill all its functions, and the bath will last a long time.
