How to properly insulate the ceiling in the bath with your own hands

A bathhouse is a room with a special internal climate that needs to be maintained. Hot and humid air, rising, tends to exit through the ceiling. As a result, conditions during bath procedures become less comfortable.

To avoid this, you need to competently approach the solution of the problem. The article describes in detail the stages of ceiling insulation in the bath. Describes the various materials that will help you get the job done.

Ceiling in the bath: types and materials

Wooden ceiling is better suited for bath rooms. Wood stubbornly tolerates changes in air temperature, has low thermal conductivity and has noise insulation properties.

There are three main types of ceilings:

• panel;
• filed;
• grazing.

To create a ceiling, various types of wood are used:

• Pine;
• oak;
• aspen;
• Linden;
• cedar.

When installing the ceiling in the bath room, you can not use materials such as: fiberboard, particleboard, plywood as a ceiling or interior sheathing. They easily absorb moisture and deform.

Ways of ceiling insulation

The design of the ceilings is different, but the principle of insulation remains unchanged. It should turn out a “pie” of three layers: a vapor insulator, a heater and a water insulator. Each layer consists of various types of materials. Combining the suitable ones, you will be able to well insulate the ceiling in the bath.

Flooring insulation
The design consists of draft boards 40 mm thick, which are laid flat on the wall trim. Installation of the ceiling is carried out across the bath - the shortest distance from one wall to another. The ceiling is well suited for small rooms with a width of no more than 2.5 meters.

Instruction:

1. Laying the ceiling. Draft boards 40 mm thick are laid on the wall trim. Then, from the side of the room, bars are beaten to them with a step of 0.5 m.
2. Laying insulation. A heat insulator is placed on the draft boards from the roof side. The insulation layer should be at least 150 mm. Well plug the slots around the perimeter of the roof.
3. Laying waterproofing. Pull the plastic film over the insulation and fix it well. It will protect it from moisture that can penetrate the roof.
4. Laying a vapor barrier. For vapor barrier often use foil film. She is beaten with a stapler to the ceiling from the side of the room.
5. Installation of lining. First, 2 cm thick rails are fastened to the bars with a step of 0.5 m. This will provide sufficient height for ventilation of the entire vapor barrier. Then the lining is nailed to the rails.

Flooring is done in saunas that do not have an attic. This type of overlap has low strength and is not designed to be walked on. If your bath is with an attic, but you decide to make a ceiling, try not to step on it. You can bend the boards, damage the protective layers of the insulation.

False ceiling insulation
It is considered the simplest and most durable floor, which is used in baths with an attic. On it you can freely move and even store a whole warehouse of things. False ceiling is suitable for large bath rooms. It consists of several parts:

• floor beams;
• upholstery of the ceiling from the attic;
• upholstery of the ceiling from the side of the room.

Instruction:

1. Installation of a vapor barrier. Vapor barrier material is nailed to the floor joists. To do this, use a construction stapler and staples. Docking seams are glued with tape.
2. Installation of the crate. Across the beams beat the bars in increments of one meter. They serve as a support for the vapor barrier and insulation.
3. Ceiling installation.Edged boards are nailed to the crate - this will be the ceiling of the bath.
4. Laying the heat insulator. The space between the beams in the attic is filled with insulation and rammed. The total height of the dense layer should be at least 150 mm.
5. Laying waterproofing. A protective film is stretched along the overlapping beams, the joints are glued with adhesive tape.
6. Mounting the attic floor. Sheathe the attic floor with draft boards that protect the film from damage.

All layers of the false ceiling hold the beams, so high quality requirements are imposed on them.

Panel ceiling insulation
This overlap consists of prefabricated shields (panels). It has a complex structure, which entails installation difficulties. For this reason, they are rarely used as a ceiling in a bathhouse. Shields are knocked together on the ground, and then they are lifted and installed. In order to make it easy, they are left empty. After installation, they are engaged in insulation.

The panel consists of the following elements:

• two bars;
• external boards (attic floor);
• internal boards (ceiling of the bath).

Instruction:

1. Panel manufacture. A bar is selected along the length equal to the distance between the walls. They are laid on a flat surface in parallel. The distance between them is one meter. Edged boards are nailed to the bars - this is the ceiling of the bath. This method makes all the panels, and then they are raised to the roof.
2. Laying a vapor barrier. Shields are covered with a vapor barrier film so that it snugly surrounds voids and beams.
3. Laying the heat insulator. 150 mm of insulation is placed in the space between the bars.
4. Laying waterproofing. Cells of panels filled with insulation are covered with a waterproof film and fixed with brackets.
5. Laying external boards. Edged boards are laid on top of the waterproof layer, which will become the floor of the attic.

Insulation around the chimney
A hot pipe is an increased source of fire, so you can not insulate it, since the entire ceiling. For the chimney, a fence is made in the form of a box. Sand, expanded clay, clay, etc. are poured there. - everything that does not burn. This helps prevent possible ignition of the ceiling insulation.

Materials for insulation of the ceiling in the bath

The construction market offers many thermal insulation materials. Among them there are modern synthetics and natural ones. When buying insulation, consider the conditions in which they will be used. Try to choose environmentally friendly and fireproof materials.

Vapor isolators
A bathhouse is a place with a high level of humidity. Steam, rising, strive to go outside through the ceiling. Condensation forms from the temperature difference, which becomes the cause of decay of floorboards and insulation. To prevent the escape of steam from the room and the appearance of moisture where it should not be, various vapor isolators are used.

Polyethylene film. This is an inexpensive material used as a vapor barrier. In order to create a reliable barrier out of it, it is necessary to qualitatively join together separate parts of the film. For this, special adhesive tapes are used.

This material has a number of significant drawbacks, making it not the best vapor barrier. The film quickly becomes obsolete and loses its strength. From frequent changes in temperature is destroyed. As a result, steam easily penetrates into the insulation through cracks and holes.

Polypropylene film. Elastic film with high tear resistance. It has good insulating properties, does not allow vapor and moisture, is resistant to high temperatures.

There are several varieties:

• transparent - the usual cheap film used for vapor barrier roofs.
• foil - has a metallized coating that effectively reflects steam and heat fluxes.
• membrane - a breathable material that can absorb moisture, and then slowly evaporate.Due to the complex composition has a high cost.

Liquid rubber. This material is used as a vapor barrier. Liquid rubber is a water-based polymer solution. After application, a transparent rubber film forms on the surface, which does not allow steam and moisture to pass through. This composition covers floors, walls and ceiling. The monolithic layer of the film adheres well to concrete and wood surfaces.

Of all the above types of vapor insulators, polypropylene films are often used: transparent and foil. They are cheap, durable and do a good job.

Other materials: ruberoid, roofing, glassine, cardboard, impregnated with linseed oil, waxed paper.

Heaters
Thermal insulation of the ceiling is an important step in creating a good bath. When choosing a heater, it is necessary to take into account the properties that it should have: environmental friendliness and the level of heat conservation. The first criterion affects health, and the second at the time of heat preservation. For thermal insulation, various types of insulation are used.

1. Mineral wool. No construction is complete without the use of this material. The heater does not burn, maintains a high temperature in the room for a long time and is easy to fit. Mineral wool is afraid of moisture and very quickly deteriorates. During installation, it is necessary to isolate the insulation from water with a film. It is attached to the surface with a special adhesive tape.
2. Glass wool. Good insulation for the ceiling of the bath. Fire-resistant, not afraid of moisture, insects and mice do not live in it, retains heat for a long time. The disadvantage of the material is the increased fragility - the reservoir easily diverges into small fragments. Particle fibers cause irritation in the eyes, throat and skin.
3. Penoplex. Modern thermal insulation material in the form of plates. Light, does not burn, withstands sudden changes in temperature, fungi do not multiply in it, mold does not grow. Penoplex retains heat in the bath for a long time and almost does not absorb moisture. The material is installed without waterproofing.
4. Styrofoam. Often used in construction for insulation of walls and ceilings. It is especially useful in a bath room - it does not absorb moisture and remains resistant to high temperatures. The disadvantage of the foam is the increased fire hazard, so it should not be installed near the chimney. Rodents like to make nests and burrows in it.
5. Penoizol. Liquid material that is used for insulation insulation. It is supplied under pressure and fills all inaccessible voids. Penoizol is a breathable insulation. Absorbs moisture from the surface of the vapor barrier and waterproofing, prolonging their service life. The disadvantage of this material is its low strength.

Other materials: expanded clay, sawdust, clay, straw, sand, a mixture of cement and sawdust.

Waterproofing
They are the third final layer in the insulation of the ceiling of the bath. The material is laid on top of the heat insulator and protects it from the humid environment. Waterproofing is done using a polypropylene film.

Now you know the technology of ceiling insulation. Doing it yourself is not difficult, the main thing is to study the installation sequence. From the whole variety of materials you can choose what is best suited specifically for your bathhouse.

Video: how to insulate the ceiling in the bath