When installing floors directly on ground rocks, certain regulations must be observed. Design features Such buildings can significantly reduce the load on the foundation. But in this situation you will need to pay attention Special attention groundwater. Only a well-designed project and high-quality thermal and waterproofing will help prevent moisture from penetrating into the object and keeping it warm.
In existing regulatory documentation, the heat transfer resistance of floors is not separately regulated and is equated to the values obtained on the walls of buildings, and the method and order of laying insulating layers is chosen depending on the availability of basements. If the house has one, a smaller thickness of the thermal insulation layer is allowed (the level of soil freezing remains higher), but it must be laid on waterproofing, since groundwater can appear at any time. Insulation of floors in a private house is carried out more thoroughly than in buildings for other purposes.
In rooms without a basement, the installation of thermal insulation is carried out arbitrarily, since the maximum freezing depth may vary different level in relation to the floor plane. When the water is far away, you can use moisture-proof anti-capillary waterproofing; when it’s close, you will need roofing material or a film membrane, which are best placed at the same levels with. It is also necessary to connect together the moisture-proof waterproofing of the floor and the horizontal waterproofing adjacent to the floor foundation walls. This is achieved by overlap (10 cm on roofing felt with mastic, 20 cm on a film membrane).
Recommended sequence of work when insulating floors in a private house
Floor installation on soil rocks requires a clear sequence of operations:
- Preparing the base.The plant layer and part of the continental rock are removed.
- Soil compaction.Fractions of crushed stone, crushed brick or gravel are compacted into dry soil, and rich clay or crushed stone spilled with bitumen is introduced into wet soil.
- Leveling the surface.Sand is poured and compacted in a layer of 5-10 cm. concrete screed solution B10-B15.
- Insulation.When the concrete mass has completely hardened, waterproofing is applied to it, which is covered with insulation.
The insulation on top is again made with a thickness of at least 40-50 mm. For additional reinforcement, steel plates can be used or plastic mesh. Prevent possible cracking and impact impact noise Laying compensation tape on adjacent structures will help. At large area base (more than 25-30 m2) it is divided into several smaller sections, dividing the surface with equal expansion joints.
Common materials used for insulating floors in a private home
Conventional ones are used both for insulating floors in a private house (PSB-S-35) and for their arrangement in parking lots or garages (PSB-S-50). When equipping such a floor, gravel (30 cm or more) is poured and a concrete screed (10 cm) is made so that the subsequent waterproofing layer is at the same levels as the horizontal waterproofing of the adjacent walls. Having laid PSB (at least 10 cm), it is covered with reinforced cement screed, on top of which floor coverings can be laid. It is possible to lay waterproofing on top of the insulation, but its level must also coincide with the location of the wall insulation of the building. The advantages include low water absorption and good accessibility of the material, the disadvantages are its destruction under the influence of resins and mastics in an organic solvent.
They are distinguished by greater density and hardness. Their structural cells are closed, due to which the material is much stronger than ordinary polystyrene.
They are good for insulating floors even in facilities with high traffic and difficult operating conditions (in industrial workshops, in public institutions). Laying slabs directly on gravel is allowed. A layer of 8 cm is enough. Roofing material can serve as waterproofing. The top of the insulation is covered with 10 cm of concrete screed. It is convenient to use the slabs at high groundwater ah, but they are also afraid of resins and mastics based on organic solvents.
Polyurethane foam boards for insulation of floors on the ground, they are characterized by a solid closed cellular structure of a homogeneous nature. For their production, PUR or PIR polyurethane is used. The material may be covered with aluminum foil or fiberglass. This allows you to increase its vapor permeability and heat conservation. The slabs have significant water absorption, which leads to the need to lay moisture-proof waterproofing underneath them. Required thickness such insulation rarely exceeds 7 cm.
They are practically not used for floor insulation in buildings on ground. For such cases, only certain varieties of this material are selected that have maximum hardness, as well as high density and deformation resistance. Pre-treatment with a water-repellent agent helps reduce the water absorption rate of the slabs. When insulating floors in a private house, they also completely waterproof the slabs from external influences. The material is fire-resistant and absorbs noise well, but requires high-quality protection from moisture.
Expanded clay in bulk- a multifunctional material that can replace thermal insulation, concrete screed and gravel during construction. If the layer is thick enough, waterproofing is also not needed. Expanded clay is interesting for its fractions of 8-16 and 10-20 mm. It is poured to the stated thickness, but it is better to take more to compact it separate layers(10-15 mm). To facilitate subsequent actions, the top is fixed with cement. Material spills liquid cement-sand mixture(3-4 cm), and after hardening it is covered with waterproofing and equipped with a concrete screed (6-10 cm) for laying the floor.
Bags with expanded clay- used for arranging floors on the ground in rooms without the need for insulation. Lay flat to each other. The same fraction of expanded clay is poured into the remaining voids. The method is used in garages, sheds and utility rooms. By changing the thickness of the layer, it is possible to change the heat transfer resistance of the material. On top, the insulation is covered with a waterproofing coating (roofing felt, roofing felt) and a reinforced concrete screed, made in a similar way to the previous options.
Granulates- by-products of metal smelting and other combined products. Granulated slag grains (5-10 mm) are strong, light and have good thermal insulation properties. They are laid following the example of expanded clay, but with high groundwater they require an additional drainage ditch around the perimeter of the building. Slag also replaces several lower layers at once. It is covered following the example of expanded clay.
Foam glass in blocks- good to use for flooring on the ground under ceramic tiles. Gravel (up to 10 cm) is poured and a concrete screed is poured. Using polymer-mineral glue or bitumen mastic blocks are laid. You can perform several layers with each one drying well. Next, the material is covered with waterproofing: roofing felt, hot bitumen and plastic film, and a concrete screed of 8-10 cm is made under the tiles.
It is necessary to select the type of material depending on the purpose, availability, cost, operating conditions and category of the room.
High-quality insulation of the floor in wooden house, you will simultaneously make the room more comfortable to live in and reduce heating costs. Familiarize yourself with the available range of thermal insulation materials, study the three main schemes for performing the work, choose the option that suits you and get started.
What material to choose for insulation?
Before you start studying the properties existing insulation materials, remember: it is recommended to carry out thermal insulation work only after the wood shrinks, i.e. no earlier than six months after the construction of the building. Otherwise, shrinkage may damage the insulation.
When choosing a material for floor insulation, you need to pay attention to the following insulation characteristics:
- thermal conductivity;
- resistance to moisture;
- installation method;
- thickness;
- fire resistance;
- life time;
- environmental friendliness;
- price.
In case of wooden structures, highest value have such characteristics as fire resistance and service life.
Excellent material for floor insulation.
Advantages:
- low thermal conductivity;
- good fire resistance. Mineral wool successfully prevents the spread of flame;
- vapor permeability. Mineral wool “breathes,” which is very important when it is used to insulate wooden surfaces;
- ease of arrangement;
- good environmental friendliness.
It is produced in the form of mats and rolls, which gives you the opportunity to choose.
Main flaw mineral wool – low resistance to water. When in contact with moisture, the insulation becomes deformed and loses its quality characteristics, so special attention must be paid to the arrangement of the waterproofing layer.
| Those. characteristics of mineral wool | Indicators |
|---|---|
| Density | 115 kg/m3 |
| Water absorption at full immersion, no more | 1% |
| Average fiber diameter, no more | 0.2 µm |
| Content of non-fibrous inclusions in the mass, no more | 4,5% |
| Thermal conductivity at 283+1 K, no more | 0.044 W/m*K |
| Shear strength, not less | 50 kPa |
| Compressive strength, not less | 100 kPa |
| Tensile strength, not less | 150 kPa |
An excellent option for floor insulation in a wooden house. It can only be used after the wood has gone through the shrinkage process. made on the basis of gypsum fiber.
Key benefits:
Main flaw- comparatively high price. A twenty-kilogram bag of mixture is enough to insulate no more than 1 m2 of surface.
The material also does not tolerate moisture well. Because of it, it is deformed. Such deformation does not affect the thermal insulation properties of the material in any way, but the finishing floor covering may deteriorate.
Popular material for floor insulation. Advantages the following:
Main flaw– significant shrinkage. In just a year of service, a meter strip of glass wool can decrease by 10-15 cm. As a result, the integrity of the thermal insulation layer is compromised. Also among the disadvantages are poor resistance to water and not the best thermal insulation properties.
Styrofoam
One of the most popular insulation materials. It features an optimal ratio of cost and quality.
The material does not deform under the influence of temperature changes and high humidity. Even with a relatively small thickness (up to 10 cm), polystyrene foam provides high-quality thermal insulation.
Main flaw– fragility. In order for the material to last as long as possible, the arrangement of the insulating “pie” must be done perfectly.
Important! Foam does not allow air to pass through. This may not in the best possible way affect the condition of the wood. Be sure to take this nuance into account.
This has many advantages, including:
- resistance to fire, moisture and temperature changes;
- incredibly low thermal conductivity;
- high noise insulation properties;
- excellent strength.
Main flaw– relatively high cost.
Find out how to do it by studying step by step instructions, in an article on our portal.
Prices for popular types of insulation
Instructions for carrying out thermal insulation work in different situations
The floor design of a wooden house can have a wide variety of appearances. Consequently, the procedure for carrying out thermal insulation work will also differ. We present to your attention instructions for insulation in the most common cases.
Due to the limited height of the subfloor, the insulation cannot be fixed from below to the joists. This leads to the need to dismantle the existing flooring, which makes this method the most labor-intensive.
In general, the work is performed in the following sequence.
First step. Remove baseboards and flooring elements. If replacing the decking is not in your plans, work as carefully as possible. For greater convenience, sign the boards to avoid problems during their reassembly.
Second step. Examine the condition of the lag. Dismantle rotten and deformed areas.
In place of the removed elements, install pieces of timber of similar sizes. To fasten parts of the structure, use wooden boards and galvanized screws.
Third step. Attach a support block to the bottom of each joist.
Fourth step. Prepare lumber for arranging the rough flooring. Good fit unedged board. Saw it into pieces 10-20 mm long less than the installation pitch of the joists - the flooring elements should be laid quite freely.
Fifth step. Assemble the subfloor. There is no need to attach the boards to the support beams.
Sixth step. Cover the flooring and joists with a vapor barrier material. If the building is located in an area with high groundwater, instead of a vapor barrier, install glassine or roofing felt. Lay the insulation with a 10-15 cm overlap on the walls. Tape the joints of individual strips of material with tape.
Seventh step. Install finished floor joists. Lay the selected thermal insulation material.
Eighth step.
Ninth step. Stuff counter battens to create a ventilation gap between the insulation “pie” and the finishing flooring. The recommended gap thickness is 20 mm.
Tenth step. Reinstall the previously removed floorboards or install new flooring.
| Floor board thickness, mm | Distance between lags, cm |
|---|---|
| 20 | 30 |
| 24 | 40 |
| 30 | 50 |
| 35 | 60 |
| 40 | 70 |
| 45 | 80 |
| 50 | 100 |
Insulating the floor above a high cellar
In this case, you can use a trick and insulate it from the cellar side.
First step. Go down to the cellar. Attach a moisture-proofing film to its ceiling.
Second step. Nail thin slats or support beams to the sides of the beams. If the cellar is damp, use a galvanized profile instead of timber.
Third step. Cut the insulation (it is best to use mineral wool) into pieces 20-30 mm wide more step log installations Thanks to the increased width, the insulation slabs will be placed side by side and will be additionally fixed.
Fourth step. Place transverse bars onto the previously fixed beam (profile, slats) to maintain the insulating layer.
Fifth step. Attach a waterproofing film to the slats.
Sixth step. Mount finishing coat at your own discretion.
If you want to do it from the living room side, work in a similar order - the “pie” will consist of the same layers.
Arrangement of a double floor
Suitable for rooms with high ceilings. The insulating structure will take up 12-20 cm of usable space.
Work in the following order.
First step. Remove the baseboards, replace damaged wooden supporting elements, and fill existing gaps with foam.
Second step. Lock wooden joists in increments of up to 90 cm. The optimal installation step is about 60-70 cm.
Third step. Make sure the top edges of the joists are horizontal. If there are deviations from the horizontal, get rid of excess wood using a plane. In places with insufficient height, place pieces of wood, roofing felt or other suitable material under the beam.
Fourth step. Cover the surface of the base with a vapor or moisture insulating material with a 10-15 cm overlap on the walls.
Fifth step. Place the selected insulation in the space between the joists.
Sixth step. Cover the thermal insulation layer with waterproofing film.
Seventh step. Install the flooring elements.
Eighth step. Lay the selected covering and install the skirting boards.
Important! If a wooden house stands on a screw, bored or pile foundation, you need to additionally install windproof material. It installs with outside from the thermal insulation layer.
Now you have all the necessary knowledge to self-execution floor insulation in a wooden house.
Good luck!
Video - Floor insulation in a wooden house
Kirill Sysoev
Calloused hands never get bored!
Content
One of the problems of living in a private house made of wood is a cold floor. The fact is that low-temperature air currents descend downwards, and coolness also emanates from the ground. Insulating the floor covering, which is done using a variety of materials, will help make your home cozy, warm and comfortable, and protect it from freezing.
How to insulate the floor in a wooden house from below
It is known that home is the fortress of every person, so it should always feel cozy and warm. One way to transform a living space is to insulate the floor in a wooden house from below. To get a positive result, you should carefully familiarize yourself with the range of insulation products, find out the features, and choose the most best option and complete the installation.
Installation of the thermal insulation layer has several specific nuances:
- It is necessary to have two-layer insulation of the floor in a wooden house from below. It is necessary to reduce the loss of heat escaping through the rough bottom. Typically, the floor is made from regular boards, which adjust to each other. The surface will suffer from strong exposure to humidity and low temperature from the ground, so building materials must be treated with special means in advance.
- Given the fact that wood absorbs liquid well, waterproofing will be needed. Before you begin to insulate a wooden floor, it is recommended to lay one-sided fiber.
- Products for floor insulation in a wooden house from below should not change their characteristics when in contact with wood.
Which insulation is better for the floor in a wooden house
Very often, consumers think about what material is more profitable to use to insulate a cold floor in a wooden house from below. The choice of insulation depends on the following factors: room size, type of surface, type of wood, climate, price. It’s worth saying right away that it’s expensive. finishing material not always the best in quality and may simply not be suitable for a particular building. To make the right choice, it is recommended to find out what types of insulating materials there are flooring materials, study their characteristics and advantages.
Materials for thermal insulation
The range of modern thermal insulation is very wide. Products may differ in dimensions, characteristics, installation technologies, and so on. Insulation of floors in a wooden house is often carried out with the following building materials: mineral wool, expanded clay, penofol, polystyrene foam (expanded polystyrene), polyurethane foam, sawdust, penoplex. The choice of thermal insulation layer depends on the individual preferences of the owner of the building and the characteristics of the floor covering. How to insulate the floor in a wooden house during construction or renovation of a residential premises?
Mineral wool
Cold wood flooring is often insulated with mineral wool. This type of sealant is available as elastic mats or durable panels. The material must be laid in a single layer. The main advantages of mineral wool:
- high sound and heat insulation;
- long term practical use;
- fire resistance and high humidity;
- affordable price;
- environmental friendliness;
- This insulation is resistant to damage: mechanical and chemical influences.
Polyurethane foam
Perfect fit wooden floor a seal whose pores are closed with air and gas for insulation is polyurethane foam. This cellular material has a small mass, but retains heat well. This insulation is most resistant to the formation of fungus and mold, is not afraid of rotting, and is not susceptible to acids. Polyurethane foam is applied using a special technique and has good adhesion (adhesion to the surface). Thanks to the use of this type of thermal insulation, it is possible to insulate a floor of any shape without creating joints.
Styrofoam
Thermal insulation of floors using polystyrene foam (expanded polystyrene) has many advantages. The structure of the material provides low level vapor permeability and thermal conductivity, fire resistance, reliability, resistance to the influence of chemical and biological factors. Expanded polystyrene has long term use and retains its characteristics for a long time. The main disadvantage is that the seal absorbs a certain amount of liquid, which may affect some properties.
Penoplex
Insulation of a wooden floor is also done with penoplex - a very light polymer homogeneous material that does not put any load on the base of the building. It is produced by extrusion - forcing molten raw materials through the molding cavity of an extruder (special equipment). Penoplex is very durable, resistant to low temperatures, durable, characterized by minimal moisture absorption and combustion.
Expanded clay
Thermal insulation of a wooden floor can be done using expanded clay - a loose, porous product that consists of small round balls. Insulation is produced by burning slate or clay in a special oven. Expanded clay for preserving the heat of wood floors is durable and environmentally friendly materials. It has high levels of sound insulation, fire resistance, and frost resistance. There is one significant drawback: after a certain period of time, expanded clay becomes compacted under the weight of its own weight and loses its thermal insulation qualities.
Penofol
Insulation roll type for a wooden floor, which is made of polyethylene foam, which is covered with aluminum foil on top - this is penofol. This seal is not very thick (3-10 mm), but it conducts heat well and does not require additional vapor barrier. Due to its composition, penofol has several disadvantages: foil can be “eaten” by rust, and polyethylene loses strength over time.
Installation technology
Reliable and effective option laying insulation for wooden covering from below is installation along logs - transverse boards (beams) on which the floor covering is located.
- First, logs are attached to the brick foundation, the distance between which should be 1-1.2 meters (as in the photo).
- Chipboard or thick plywood is mounted on the beams below using self-tapping screws. This is necessary for laying thermal insulation.
- The insulating material is laid on the surface between the joists. The thickness of this layer of thermal insulation can be varied, so you need to be guided by the dimensions of the transverse boards (joists).
- Waterproofing (for example, polyethylene film) is laid on top of the seal. This type of material is not always used, because some types of insulation are themselves resistant to moisture.
- The final stage of installation is the installation of elements of old or new wooden flooring on the ground floor.
Floors are considered one of the coldest parts in every apartment, individual house and country house. Everyone knows that cold air sinks. If you live in your own cottage, then you are probably familiar with the problem of drafts. In addition, in floors made of wood, cracks form over time, which lead to heat loss.
Sooner or later, almost everyone thinks about insulating floors, because this procedure allows you to save up to 30% of heat, which means you can significantly save your money. In addition, the well-being of residents often depends on the temperature in the rooms. All housewives know that heated floors are a guarantee of a cozy atmosphere.
How to properly insulate a floor in a private house with your own hands
When choosing a method of insulation, consider the following:
- Absence (presence) of basements and basements
- Number of floors
- Material from which the house is made
Warmth in the basement - warmth in the rooms
If your house has a basement, then you need to start insulating your home from there. The walls of the basement or basement are insulated from the outside to avoid contact of the walls with frozen soil. You can choose extruded polystyrene foam as a material (it can protect your basement from moisture). As a rule, the room is insulated right down to the foundation, after completion of the work it underground part covered with earth. Before starting work, it is worth installing ventilation holes.
Instructions for insulating floors with your own hands if you have a basement:
- Preparing the roll (installing boards adjacent to each other)
- Next is a layer of waterproofing materials
- We install thermal insulation material on top
- Nailing wooden boards
Please note: there should be a free space (1 cm) between the floor and the wall for ventilation, which will be covered with a plinth.
To avoid disassembling the floors, you can apply heat insulation work from the base side. To do this, attach to the ceiling vapor barrier film, install heat-insulating sheets, then secure them with a mesh. Boards are laid and secured on top. This work requires skill and experience. If you are not confident in your abilities, it is better to turn to professionals who will do all the work correctly and quickly. Performers for any tasks can be found, for example, on the YouDo service.
How to insulate a floor in a wooden house with your own hands
IN last decades many city dwellers purchased country houses for themselves wooden houses closer to nature. To allow the benefits of such a home to unfold, it must be made as comfortable as possible. One of the most important issues related to the pleasure of future living is how to insulate the floor in a private house. This procedure is quite simple, so even a non-professional can handle it. But, nevertheless, you cannot do without knowledge of technology and some basics.
The scheme of work is simple: you lay in layers thermal insulation materials, then - vapor barrier and floor covering.
Instructions for insulating wooden floors:
- Laying wooden logs (bars)
- Next, we fix the bottom of the board
- We tightly install insulation and vapor barrier
- Laying wooden flooring
We seal the gaps between the insulation sheets with sealant, and when laying the second layer (vapor barrier), seal the joints with metallized tape.
It is worth noting that vapor barrier is needed if you use mineral wool or ecowool. Then for insulation you can choose either specialized materials or polyethylene film.
This method is often used for wooden floors in a private house or country house. Even a beginner can do it, and is quite effective. This method is especially recommended for use in the presence of a basement and for the first floors of the house.
Insulation of concrete floor
Concrete slabs remain cool even in summer and do not protect the room from cold currents.
Instructions for insulating a concrete floor with your own hands:
- Leveling the ground
- To protect against water, pour a 10-centimeter layer of crushed stone
- Next, sprinkle with sand.
- Installing a concrete slab
- We use insulating materials
- A layer of insulation on top
The final stage will be laying the flooring. If you decide to use the popular “warm floor” system, then it is installed on top of the thermal insulation material.
If you want to insulate a concrete floor with your own hands in an already finished house, then you can choose flooring materials, for example, linoleum or carpet. For additional insulation, a layer of cork is laid on top or polyethylene foam is used.
How to insulate the floor on a balcony with your own hands
The problem of thermal insulation of a balcony or loggia often arises during renovation. The insulation scheme in this case is simple, and even a beginner can handle the work. How to insulate a balcony correctly and for a long time?
Insulation will help you keep heat in the apartment not only in cases where the loggia is a separate room. Even unheated glass balcony capable of raising the temperature next room. Therefore, you should not forget about this part of the house, and it is better to approach the insulation of the apartment in a comprehensive manner.
The first stage of work will be preparing the balcony: remove the old covering until concrete slab, clean it, seal the cracks. Next, we use waterproofing materials (it is better to choose a liquid composition).
Now you can proceed directly to insulation:
- We lay a layer of waterproofing (or thick polyethylene) on the concrete
- Next we attach wooden logs
- We attach the edges of the joist to the wall
- We cut the insulation sheets in accordance with the distance between the joists
- Lay it on top of a layer of rolled foil material
- Secure with plastic dowels
- After installation is completed, we use polyurethane foam, which will fill all free spaces and gaps
- A vapor barrier membrane, floor covering and baseboards are nailed on top
It is better to treat wooden logs with a fire retardant compound. Keep in mind that if you use rolled foil materials, the logs are laid on top of the insulation. In other cases, the insulator is placed between the joists. Whatever material you choose, the insulation layers should not rise above the threshold.
Materials for insulating houses, apartments and cottages
Today on the market you can find a lot of materials for insulation work. You should pay attention to the quality of insulation materials, their sizes, and methods of application.
The main materials are:
- Sawdust
- Mineral wool
- Ecowool
- Penofol
- Polyurethane foam
An environmentally friendly and cheap material is ordinary sawdust, which allows you to fill even small cracks. It is worth noting that not only sawdust can act as insulation, but also substances containing them in their composition: wood blocks, sawdust pellets, sawdust concrete, wood concrete, etc.
Mineral wool remains a popular material for insulation. It is non-flammable and will do a good job of sound and heat insulation of a house or cottage. However, keep in mind that cotton wool is not a vapor-permeable and environmentally friendly material.
Not long ago Penofol appeared on the market: roll material in several layers, which consists of an insulating base (for example, foamed polyethylene) and foil. Penofol is quite durable and lightweight, it will provide good insulation(can be used in combination with other materials). One of the options - self-adhesive Penofol - can be conveniently mounted on any surface when insulating a house with your own hands.
Quite often polystyrene foam is used in construction. It has a number of advantages: it is strong, not susceptible to the formation of fungus, durable, and has good insulating qualities. But this material, like mineral wool, absorbs water, as a result of which it can lose its properties.
Ecowool is made from natural materials, mostly from waste paper. Accordingly, this is an environmentally friendly insulation for humans, which does not burn (although it can smolder), dries out when exposed to moisture and does not lose its insulating properties. The only significant negative is the price.
Polyurethane foam is produced from several components: polyol and isocyanate. Its cells are filled with air, which ensures lightness, resistance to fungus and good insulating qualities. Polyurethane foam is recognized as one of best options for insulation of a house or cottage.
Now you know how to insulate a wooden floor in a private house or country house with your own hands. It is worth spending a few days on insulation work so that the warmth and favorable atmosphere are maintained in the room throughout the year.
Cold air comes from the ground, which is not able to hold the floor covering. And, as a result, 20% of the heat leaves the room through an uninsulated floor. Owners of their own homes, caring about creating a comfortable microclimate in them, often ask the question: how to insulate the floor in a private house?
Technological methods for thermal protection of floors laid on a concrete base
The procedure is quite simple, so you don’t have to be a great craftsman. Insulating the floor in a private house with your own hands can be done by an ordinary man if he is not lazy.
First, let's decide how to insulate the floors in a private house on a concrete base.
Do-it-yourself floor insulation from inside the room is carried out using the following thermal insulation materials:
- Foam plastic;
- extruded polystyrene foam;
The concrete base is cleaned of dust, dirt and impregnated with primer. deep penetration. The top is covered with a waterproofing layer. A good waterproofing material is isospan, which is placed with the white side facing the insulation and the shiny side facing the concrete.
Then the floor is thermally insulated with polystyrene foam or polystyrene foam. Sheets of insulation must be laid close to each other, connecting with tongue-and-groove ends. The gaps are filled with special glue with pieces of insulation. The insulating layer is covered on top with a vapor barrier membrane.
As a vapor barrier layer, roofing material, polyethylene or foil film is used, the sheets of which are overlapped. To ensure tightness, the joints are taped with reinforced tape. Next stage floor insulation in the house - laying reinforced mesh and pouring a 100 mm thick cement mortar or concrete screed. Next perform decorative finishing linoleum, laminate or parquet.
Thermal protection of a wooden floor from the room side
Wood retains heat well. But this warmth of wooden floors is not enough if there is a basement under the house. Insulation of a wooden floor in a private house can be done from the inside of the room using heat-insulating building materials based on natural components:
- Mineral wool;
- basalt wool.
First, they dismantle the existing finished floor in the house and check the condition of the joists. If necessary, they are replaced or repaired. Then the logs are impregnated with bio and fire retardant compounds. Between them, bars are nailed, on which the cranial flooring of edged boards is laid. Before laying the insulation, overlapping sheets are laid on top of the flooring and joists. waterproofing material- plastic film or roofing felt, secured with construction stapler. The joints are sealed with adhesive reinforced tape. Next, between the logs, insulation is laid with a layer thickness 2 cm less than the height of the logs. This gap is necessary for ventilation.
If the height of the joists is not enough, then a counter batten is nailed along them, thus providing the required clearance. Then the vapor barrier material is spread overlapping on the floor, with the joints sealed with tape. Finishing wooden floors laid on top of the insulating “pie”, securing it to the joists with nails.
Thermal protection of a wooden floor from the basement side
If height allows basement, then from its side you can perform thermal insulation of a wooden floor in a private house.
The technology for insulating the floor in a house from the basement side consists of:
- Preparations wooden beams. They are inspected, repaired if necessary, and impregnated with fire retardant and antiseptic compounds for wood.
- Waterproofing devices. Sheets of polyethylene or foil film are attached with a construction stapler to the beams with an overlap.
- Installation of insulation. Mineral or basalt wool mats are placed against the existing beams and secured wooden slats or wire. Can be insulated with cheaper synthetic material- foam plastic. It is light in weight and easy to use.
- Vapor barrier devices. The vapor barrier membrane is attached to the beams with a stapler, sealing all joints with reinforced adhesive tape. As vapor barrier material use glassine, isospan, foil or plastic film.
- Installation of rough flooring. Edged board a subfloor is installed underneath, nailing it across the beams.
It is not difficult to insulate a wooden floor in a private house from the basement side. All work can be done with your own hands.
Thermal protection of the floor located above the ground
How to properly insulate the floor in rooms that do not have a basement, without reducing the height of the ceiling?
If there is no subfloor under the floor, then it should be insulated from the outside at the construction stage. Under the part of the house area located above the ground, the bottom of the pit is leveled and compacted. They arrange it from above crushed stone base 25 - 30 cm thick, on top of which a sand cushion (5 -10 cm) is poured.
The made layer of sand is covered with overlapping sheets of polyethylene film, the seams are taped with reinforced tape. The installation of a sealed waterproofing layer is necessary to prevent groundwater from seeping into the thermal protection. Then lay bulk insulation - expanded clay or slab - extruded polystyrene foam (penoplex).
The thickness of the thermal insulation layer must be at least 15 cm. Penoplex slabs are laid as tightly as possible to each other, the seams are filled with sealant, expanded clay is compacted. If we insulate with penoplex, then a waterproofing layer must be laid on top of the thermal insulation layer. Then the insulating layer is covered reinforced mesh and fill the screed cement mortar or M200 concrete. After the rough flooring has dried, you can begin installing the finishing coating.
Insulation of floors above an unheated room
For rooms located above unheated room, you can insulate the floor of a house from inside the room.
The better and cheaper it is to perform thermal insulation according to interfloor ceiling? It is better to insulate with lightweight building material - polystyrene foam, which has a low thermal conductivity coefficient and does not accumulate moisture. Thermal insulation of the floor begins with the dismantling of existing floor coverings until overlap. Then the ceiling is cleaned of dust, construction waste, level with a cement screed and coat with a primer with high adhesion. A wooden lattice frame is mounted on the surface of the floors. The cells are lined with plastic or foil film, the edges of which should extend to lateral surface timber. Polystyrene foam 50 mm thick is laid on the floor in the compartments of the frame, sealing the gaps with silicone glue and pieces of insulation.
The top is covered with a layer of vapor barrier membrane, using methods to achieve tightness when laying its sheets. Next under finishing The floor of a private house is made of reinforced concrete screed.
Polystyrene foam 50 mm thick is laid on the floor in the compartments of the frame, sealing the gaps with silicone glue and pieces of insulation.
With easy-to-use polystyrene foam, you can cheaply insulate the floor with your own hands.
Thermal insulation of attic floors
By properly insulating the attic floor, you can prevent heat loss through the ceiling without lowering its height indoors.
To insulate the attic floor in a private home, natural-based insulation is used - mineral or fiberglass wool. By attic floor install a timber frame. The compartments are filled with a layer of waterproofing. Cloths of polyethylene film, glassine, foil or roofing felt are laid overlapping, attached to the frame with a construction stapler and the joints are sealed with double-sided adhesive tape. The insulation is placed on top at odds with the elements of the frame cell.
A vapor barrier is installed on top. To construct a vapor barrier layer, isospan, glassine, foil and polyethylene film are used. A vapor barrier membrane having one mirror surface, lay the white side to the insulation, reflecting towards the room. There should be a gap of 3-5 cm between the insulation and the vapor barrier. The frame compartments are covered from above with wood-fiber boards or a reinforced cement screed can be used.
To construct a vapor barrier layer, isospan, glassine, foil and polyethylene film are used.
The attic floor can be protected from heat loss with bulk building materials. Bulk insulation - expanded clay or ecowool - is poured into the compartments, completing the necessary hydro- and vapor barrier.
How to make an insulated attic floor with liquid thermal insulation building material? Liquid insulation, polyurethane foam creates a continuous layer, without cracks or gaps. It sprays easily special tool and dries instantly. Installation of hydro and vapor barrier layers is not required under the laid polyurethane insulation.
Many owners who have their own home, trying to make the floor warm with their own hands, are not familiar with the rules and regulations thermal insulation works. Therefore, if you do not know how to properly insulate a floor, contact a specialist.
Video about floor insulation: