Insulation of a cinder block house from the outside, technology for performing work. Options for exterior decoration of a cinder block house Interior decoration of a cinder block house

Before you insulate a cinder block house from the inside on your own, you need to know the rules for carrying out such work. It is important to choose materials that are suitable for this.

Today, the construction market is saturated with such products. Their a large number of. Usually they are made on the basis of mineral wool or polystyrene. Warming a building with one product or another requires certain skills. How to properly insulate a cinder block house will be described below.

The slag house itself is warm, especially if the thickness of the slag-cast wall in it is more than 30 centimeters. But in order to spend less on heating in winter, the building can be further finished. In this case, you can do both external and internal insulation of the cinder block walls of the house with your own hands.

Which side to finish the cinder block house?

Thermal insulation can be both outside the walls and inside. If the finishing is done in the first way, then you can save space inside the building. Insulation of a cinder block house from the outside will also require less cost effort, time or money.

How to insulate a cinder block house?

How to insulate a cinder block house from the outside? Outside, the finish can be made with expanded polystyrene. This material is easily glued with a special mixture. Beforehand, it is worth leveling the wall under it and priming it so that moisture does not seep through. So how to insulate a cinder block structure correctly?

To create thermal insulation inside, preparatory measures will be required. To do this, the surface is leveled, and then primed. Such work can be done using plaster or putty mixture. The walls must first be cleaned of dirt or dust.

In order for the thermal insulation to last for a long time, it is important to put a layer of waterproofing under the thermal material. This will help prevent condensation.

For interior decoration you will need:

Insulation. The thickness of the sheets should not be more than 5 centimeters.
Putty knife.
Glue.

After the site is prepared, you can proceed with the installation of plates. The adhesive mixture must be prepared according to the instructions on the package. It is applied to the surface with a spatula. Then the insulation material is glued to the glue. At the same time, there should be no air under the plates.

Important! Glue should be applied only to the base, not to the slabs. The thermal material itself must have a clean surface. The sheets fit snugly together after gluing. If gaps remain, they can be blown out with foam or sealed with putty.

How to lay insulation on cinder block walls?

Before you insulate a house from a cinder block, you need to choose a thermal insulator. Insulation of a cinder block house from the inside can be done different materials. Their installation has certain nuances depending on the type of insulation. It is important to know such moments before the start of the event.

Foam insulation

The difficulty of using this product is that its installation requires a flat base. If this is a cinder block wall, then it will require preliminary plastering, and then a primer. The surface must be free of dust or paint.

To keep it from absorbing moisture, without fail under it lays down waterproofing. This will allow the insulation to last longer. Waterproofing will not allow condensation to form, and therefore the walls will always be dry.

To work you need:

Styrofoam.
Putty knife.
Glue.

Installation is simple. The prepared surface is covered with glue, and then the plate clings there. Then the plate must be pressed to squeeze out the remaining air from under it. Glue is recommended to be applied exclusively to the wall, and not to the sheet. Then all the gaps between the plates are sealed with plaster.

Also, installation can be done with plastic dowels. But usually inside the house they are glued with a mixture. The final step will be finishing or painting.

This method is fast and practical. The main advantage is that it is not necessary to level the surface for laying mineral wool. The installation process is carried out on the frame. It can be wood or aluminum. Before strengthening, the tree should be treated with mixtures that will not allow it to rot and will prevent the appearance of insects.

The frame consists of cells of a certain shape, where the mineral wool is placed. Then from above it is all sewn up with drywall, and then gets off.

Insulation sealing

After laying the thermal material, it is important to check its sealing at joints, sockets, switches and other things. Air can get into the gaps left in these places. To prevent this from happening, sealants are used. If the gaps are large, foam is used.

Conclusion

A video on how to insulate a cinder block structure from the inside or outside is below. On it you can get acquainted with the process of installing insulation in more detail. It is also worth noting that mineral wool insulation will cost less than foam.

The advantages of mineral wool include the fact that it does not burn like Styrofoam. Also, when smoldering, harmful gases will not be released into the air. The downside is that cotton wool can absorb moisture when communications leak. But here everyone should calculate their capabilities and strengths, and then, based on this, choose the best option for themselves.

Regardless of what material the house is made of, it always requires insulation. Therefore, taking into account the material of the building, one or another heater should be selected. To insulate a cinder block house, you must first decide on possible options, their installation technique and, of course, cost.

Here it should be borne in mind that when from the inside, the dew point will shift and stop between the wall and the coolant. As a result, moisture will appear on the surface, which will inevitably lead to fungus. And this, in turn, adversely affects the quality of the thermal insulation of the house, not to mention the loss usable area inside.

Therefore, when insulating a house with outer side, all these negative moments are bypassed. In many cases, experts note that this method is even better compared to work related to interior walls.

The main types of heaters

To date, there are two optimal options: mineral wool (or glass wool) and foam. Each of these materials has its own positive and negative qualities.

Mineral wool is produced either in rolls or sheets. The material has such positive aspects:

the thermal conductivity index has a value of 0.041 W / (m ° C), this characteristic may vary depending on the density of the material itself, but such a change will be insignificant;
good sound insulation, here density is of great importance;
fire resistance: if a fire occurs, then in the absence of open fire the material will fade quickly;
ease of fixing: the structure of mineral wool makes it easy to cope with uneven surfaces, besides, it is easy to eliminate voids.

But this material also has disadvantages:

poor moisture insulation: if such cotton wool gets wet, then the thermal insulation will deteriorate by 2 times;
the installation technology itself has more complex features;
rolls tend to roll, this factor is affected by the dishonesty of contractors or incorrect self-insulation cinder block walls.

Styrofoam (extruded polystyrene foam), unlike the first option, is denser in structure, which makes it more durable. The level of moisture absorption is about 10 times lower than that of mineral wool. But all the qualities are significantly reflected in the price of the material.

Styrofoam can be presented in the form of plates, less often in rolls. From good points such material is as follows:

good resistance to moisture: even if water gets on the surface, the thermal insulation properties of the wall will not lose;
applicable on flat areas, while covering them well;
depending on the use of certain grades, it may have good fire resistance, therefore, like mineral wool, if there is no open fire near the hearth, this material will quickly die out.

Among negative points the following features should be highlighted:

low level of sound insulation;
some types of foam absolutely do not tolerate fire, therefore, when insulating the walls of the house, you should carefully select the brand, otherwise during a fire it can emit acrid smoke and support the fire itself;
this material of the usual type has a rather fragile structure, which, in turn, leads to certain problems in installation.

There is an opinion that rodents like this material. But it is not so. Rodents do not eat polystyrene, but they equip their dwelling in it, as it is warm enough.

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How to insulate a cinder block house from the outside with mineral wool

Before proceeding with the insulation of the walls, they should be prepared.

To do this, they are covered with a primer. If you are already completely ready, and it remains only to insulate the walls, then a method called wet laying will do.

In order to insulate the house, you must perform the following steps:

Prepare the surface of the cinder block wall. It is cleaned of dirt, after which cracks are removed by plastering and primed. At the same stage, you should take care of the plinth, which will serve as a support for the first row.
Next is harvested adhesive solution on which the insulation will be attached to the walls of the house. This process can be found on the product label. After the glue is ready, it is applied to the surface of the material, and then it is pressed against the wall. At this stage there are very important point: laying is best done with an overlap to avoid the formation of gaps between the plates. Otherwise, you will have to take care to tightly fill the gaps.
After the cinder block house is pasted over with material, you should take care of the reinforcing mesh. It is made from fiberglass. To fix it on the wall, it must be smeared with glue and allowed to dry completely (a day).
The final stage of such work is the application of primer paint on walls or plasters. In the latter case, both ordinary and decorative putty are used.

In general, there is nothing complicated in warming. Everything is elementary and simple.

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How to insulate a cinder block house with polystyrene foam: features

The method of laying polystyrene foam is in many ways similar to the method of wall insulation. mineral wool. The sequence of actions is as follows:

First of all, the wall must be properly prepared. As in the first case, the surface is completely cleaned, puttied and primed.
Next, glue is prepared in a similar way and according to the instructions on the package. It is also necessary to take care of waterproofing, as it will provide protection from water.
The wall of the house is covered with overlapping material, without allowing any cracks.
After the wall is ready, it is reinforced with a mesh. Then give time to dry and primer.
The last stage is the puttying of the cinder block walls. Then you can start coloring.

The insulation procedure is important in terms of the comfort of living in the house, and also helps to save on heating.

In order for a newly built cinder block house to become reliable, warm and durable, it is necessary to protect its walls from bad weather, create beautiful interior. So after comes another milestone- finishing and finishing works.

If all technological processes the houses were carried out correctly, you can start finishing and finishing work with cinder blocks. Their implementation requires theoretical knowledge, properly selected materials, accuracy and accuracy.

The walls of buildings built from cinder blocks can be easily primed, putty and painted. at the finish and Finishing work includes house insulation, wall upholstery with siding, tiling, plastering, painting.

Most economical option- this is foam insulation, plastering and subsequent painting.

The work is carried out in the following sequence:

Putty walls
Dowel foam
Stretch reinforced mesh
Apply plaster
Align
primed
Coloring.

How to insulate a bathhouse or a cinder block house

Insulation of cinder block buildings is best done inside and out.

To insulate walls, you can use:

foil;
polystyrene foam;
foam;
mineral wool;
basic heaters.

The choice of materials is quite wide and varied, so it is up to you to choose how and with what to insulate the walls of buildings from cinder blocks. It is worth noting that insulation will become more effective if you use different materials.

It is especially important to properly insulate the walls of the bath so that they effectively retain heat. good insulation help reduce fuel costs.

– perfect material for the construction of baths, it is not subject to decay, it is not subject to fungus or mold. A cinder block bath favorably differs in its fire safety.

But, although porous cinder blocks store heat remarkably, they easily absorb water. Because of this property, the cinder block loses all its positive traits. Therefore, in order to prevent the formation of dampness inside the blocks, they are isolated.

Cinder blocks have gained wide popularity in the market building materials not only due to its low price, but also due to the fact that everything you need can be purchased and blocks can be made at home. economic benefit self-manufacturing cinder blocks is quite obvious, in addition, you do not need to look for carriers to deliver the finished material.

However, we should not forget that any violation of production technology can lead to deterioration specifications cinder block. You can read about the main ones in the article.

Stages of work on insulation

on the internal walls stuff wooden slats;
heaters are laid on the rails;
on top they are upholstered with aluminum foil or foil film (this is another layer of hydro and thermal insulation);
wooden slats are stuffed onto the foil and fastened to them finishing material. Reiki help create an air gap.

It is important how to insulate and seal the openings at the installation sites of walls and doors and corners. The insulation is fixed with an anchor dowel, choosing a length that is twice the thickness of the insulation.

For exterior cladding, a ventilated facade is equipped and the walls are also insulated, especially in the place where the steam room will be located. For finishing, you can use siding or other facing materials, but most often cinder block buildings are plastered from the outside.

Today, the construction market offers a new modern way wall insulation from cinder blocks, which can be used both in a newly built room and in an old building.

Thermal insulation foam is introduced into the hollow cinder block through a pre-prepared hole or two, if the cinder block is double-hollow. The foam supply hose is inserted alternately into each of the holes.As a result, the building is insulated and sound insulation increases, due to the filling of voids with foam.

Visually it looks like this:

Cinder block wall plastering

Plaster for outdoor work has the following positive qualities:

does not allow moisture to enter the cinder blocks;
has heat-insulating properties;
fills the seams and hides block defects, potholes, protruding ends of the reinforcement;
helps to decorate the facade.

Also important low prices, any other finishing wall cladding will cost several times more. Subsequently, plastered surfaces can be easily repaired.

Preparatory plastering work is quite laborious, and the process itself is very dirty. You need to take care of scaffolding in advance.

Types of plaster compositions and their features

Outdoor work should be carried out only with cement-sand mortars, they can be purchased in the form of dry mixes at any hardware store. The most popular plaster brand Knauf.

You can prepare the mixture yourself, for this you need to take separately bulk materials and mix them dry before filling with water.

Usually the ratio of the solution is made in the proportions of 4 parts of sand and 1 part of cement or gypsum. But for outdoor work it is better to make a ratio of 3:1.

The consistency of the finished composition should resemble thick sour cream, such a solution will adhere well to the walls and hold on to them. Next, you can start plastering work.

Plaster mixtures are:

cement-sand;
plaster;
calcareous;
special formulations.

To make the coating durable, to perform plastering works good, dry weather is important. The ability to properly dilute the composition is also important. You will also need quality tools.

How to plastering cinder block walls

Before applying the solution, the wall must be properly moistened with water. You can do this with a wide fan, spraying water with it.
Plastering starts from the top corner of the wall, slowly moving sideways and down. Professionals call this method "square-nested". The size of the square can be different, but if there is no experience in plastering, it is better to make it smaller.
The wall is gradually completely covered with mortar, there should not be any gaps or gaps on it.
After the wall is thrown with a solution, the excess is removed.
Carry out grinding procedures. To do this, use wooden or plastic graters. The movements during grouting should be uniform and measured.
To create a beautiful relief surface, a layer of decorative plaster can be placed on top of the plaster.

On the video - plastering the wall using beacons:

How to paint cinder block

After finishing with plaster, the walls can be painted with ordinary facade paint. If a fence is made of cinder blocks, it is enough to prime and paint it. It is better to paint the seams with a different color. If the paint is not intended for facade works it will burn out quickly.

You can make the last layer of plaster from a colored acrylic solution, and then the walls can not be painted.

Inside the house, it is better to paint the walls with acrylic or latex water-soluble paints. They do not smell when painting, wear-resistant and moisture resistant, environmentally friendly.

Finishing the walls inside the building is the most simple view repair work.

Interior decoration of the walls of the house or garage from cinder blocks

Internal walls can also be plastered and painted or upholstered with plasterboard, clapboard.

Lining from boards conifers helps to neutralize possible Negative consequences, because cinder blocks are not an environmentally friendly material. When heated, boards emit resin and saturate the house with the aroma of wood, which has a beneficial effect on the health of the inhabitants of the house.

Drywall. This material in Lately became very popular. It allows you to additionally insulate and waterproof the walls. This is the most technologically advanced method, but also more expensive.

In addition, a lot of usable area is lost, since drywall cannot be glued to the cinder-concrete coating, it needs ideal smooth walls. Therefore, it is done first wooden frame on which drywall sheets are nailed.

Gypsum plaster allows you to create perfectly smooth walls. On it you can without additional finishing apply any coating, paste wallpaper. And although it is inferior in strength to cement-sand, but due to its viscosity and plasticity, it is less susceptible to deformation.

Thanks to the wide choice of optimal materials for finishing and finishing work, buildings made of cinder blocks are warm with a beautiful design.

In Russia, individual construction is gaining momentum. From a large number of building materials, many choose cinder block. A house made of this material is being built in short time and, most importantly, it costs little money. The disadvantage of cinder block is a loose, porous structure. As a result, under the influence of a temperature difference and moisture, it crumbles. To avoid this, a cinder block house is subject to internal and exterior finish. In this article we will tell you how to insulate a cinder block house.

When choosing a cinder block for building a private house, be sure to ask what filler the manufacturer uses. The strength of the material depends on the size of the fractions, the smaller they are, the stronger the cinder block. But even that doesn't change mandatory insulation cinder block houses.

Insulation of a cinder block house

Facade plaster

When preparing for the construction of a house, select in advance the material with which you will insulate the building. To use any insulation, lay wide base. This will give you the opportunity to work with any material, which can then be hidden under the finishing brick.

If you could not foresee this, then the only way out is to finish the walls with plaster or mount siding on them. Do not forget, when using these materials, thermal insulation must necessarily be made of foam sheets or fibrous insulation.

siding finish

Experienced craftsmen claim that the exterior finish, made in accordance with all the rules, guarantees an economic effect of 70%, therefore, in some cases, interior decoration is not required.

Note! If you are engaged in warming a house from a cinder block immediately after its construction, then you should not neglect the installation of a vapor barrier layer inside the room. Moreover, they need to isolate not only the walls, but also the ceiling.
Internal insulation

Install a vapor barrier and insulation on the ceiling from the outside. To do this, use expanded polystyrene or mineral wool. Finishing the exterior walls of the house does not need to install a vapor barrier.

Note! If you have built a house with a plinth or basement, then their walls and ceilings also need to install a vapor barrier and insulation layers.

Mineral wool is attached to the walls with plastic or wooden slats.

Painting or siding

Use of Styrofoam

most democratic and cheap option insulation of a cinder block house from the outside - installation of foam plastic plates, finishing it with plaster and subsequent painting. If you are dealing with an old house, then you must perform repair work. Repair all cracks and irregularities. Then you insulate the walls with foam. Fasten them with dowels that are 2 times larger than the thickness of the foam sheet.

More modern insulation material is expanded polystyrene, made from the same raw materials as polystyrene. The effect is given by a different production technology. Both of these materials have the same thermal conductivity, but Styrofoam has much lower water absorption. When insulating with this material, it is not necessary to install a vapor barrier layer.

Styrofoam insulation technology with plastering

Stages of work on the insulation of a house from a cinder block:

Wall plastering work.
Foam fixing.
Reinforced mesh installation.
Leveling, priming and finishing walls.
Painting.

Note! If your project involves painting the walls, then most likely you need to use acrylic or silicone plaster, but the latter will cost you much more.

Plus acrylic plaster - it is applied in color. Mineral plaster needs painting after application. Painting will have to be repeated every 3 years. Colored plaster will last you a very long time, it is usually painted when they want to change the color of the house.

Warming with mineral wool

If you have the financial means, insulate the house with mineral wool, which is then covered with siding.

Sprayed thermal insulation

Sprayed insulation

Home insulation is done in order to minimize heat loss. Manufacturers do not stop, and are constantly searching for new insulation materials. One such new insulation is polyurethane foam. You can use it as an insulating spray or fill.

The two-component mixture is sprayed with special equipment and a pistol. As a result, you will have a coating without seams, cold air cannot penetrate through it at the joints of the cinder blocks.

You can make external and internal insulation with polyurethane foam. In addition, the material, in addition to insulation, provides walls with vapor barrier, increases the reliability of structures and protects wooden details from rottenness. Polyurethane foam insulation, according to manufacturers, has a service life of 30 years.

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How to insulate a cinder block house with your own hands - Proraboff.rf

Most often, the developer thinks about the thermal insulation of a house from cinder blocks with his own hands after the object has been erected. This is largely due to the fact that cinder blocks seriously differ in their thermal conductivity.

Such an indicator can be in the range of 0.35-0.6 W / (m K). Thus, it is very difficult to determine in advance how well cinder blocks can insulate the interior space.

Why does a cinder block house need insulation?

If you deviate from building codes, reflected in SNiP 23-02-2003, only 1.5-2 m can be considered normal wall thickness from cinder blocks, but such thick walls are extremely expensive. Suffice it to say at least that for such a structure it will be necessary to build a massive and expensive foundation.

In order for the walls of the cinder block house to be able to keep warm in the home, the most the best option thermal insulation will be performed. Then it will be possible to save money, provide conditions for a pleasant microclimate, and also make the house more aesthetic.

Which side to insulate a cinder block house?

There are two fundamental different options thermal insulation of the walls of the house from cinder blocks. If you place the insulation on the inside, there will be a great danger of condensation on the walls. This is due to the fact that the dew point will be between the insulation and the wall. As a result, the risk of condensation will increase significantly.

When placing insulation on the outside of a cinder block house, several advantages can be noticed at once. With this method, there is a saving of usable space, a decrease in the risk of condensate formation, an improvement appearance the buildings. Usually, the insulation is covered with a finishing cladding, which also protects the walls of the building. From this it follows that it is external insulation that is more suitable.

How to insulate a cinder block house

There is a large range of thermal insulation materials suitable for protecting a cinder block house from the cold. External thermal insulation can be made with mineral wool, glass wool, polystyrene foam or foam plastic. Each of these materials should be given some attention.

1. Mineral wool and glass wool

Both of these thermal insulation materials are available in sheets or rolls. Glass wool and mineral wool are similar in their qualities, so they can be considered together. The most serious advantage of these heaters is considered to be low thermal conductivity, which is at the level of 0.041 W / (m K). Also a plus should be called high sound insulation. The increased fire resistance of mineral and glass wool also benefits them.

But there are also disadvantages to such heaters. The most significant is the low moisture resistance. The thermal insulation capabilities of materials deteriorate if they get wet. The process of laying mineral and glass wool is associated with great difficulties. And due to the fact that heaters can clump together, their density over a large working area turns out to be different.

2. Expanded polystyrene and penoplex

The difference between these heaters is present, although not too fundamental. Expanded polystyrene is called ordinary foam. It is produced in plates of large thickness. Penoplex is more durable and thinner with similar thermal insulation capabilities. Materials are not afraid of moisture, they remain in excellent condition for a long time. But penoplex is more expensive than polystyrene.

The main advantages of penoplex are considered to be low thermal conductivity of 0.039 W / (m K), the ability to easily withstand moisture, and ease of installation. There are options for expanded polystyrene or foam plastic, which are fire resistant.

However, there are types of heaters on the market that easily catch fire. Another disadvantage is the low sound insulation of materials. The cheapest styrofoam can quickly break down into pellets, deteriorate from exposure to chemicals, and be eaten by rodents and insects.

How to lay insulation on cinder block walls?

Depending on which thermal insulation material is selected, the technology of work will vary. The specifics of handling each of these heat-insulating materials should be looked at separately.

How to work with mineral wool

Preparatory measures when using mineral wool are that the cinder block walls are covered with a primer and plastered. Slots and cracks must be completely sealed with plaster. There are several options for laying mineral wool. The so-called "wet" method is considered the simplest. It's worth taking it apart.

1. When the surface is completely prepared, the support for the first row is installed on the plinth thermal insulation material. Thanks to it, you can protect the thermal insulation from rodents.

2. Preparation of the adhesive solution. It is better to use a moisture-resistant mastic, which, after preparation, is applied to mineral wool slabs. Next, the insulation is applied to the surface of the cinder block wall. It is necessary to try to make the gaps between adjacent plates as small as possible. If they are noticeable, an adhesive solution should be placed in them.

3. The fixed thermal insulation layer is covered with glue. A reinforced mesh is planted on it, which is additionally processed with a cool compound and left for a day to dry completely.

Having completed such work, the owner can proceed to decorative trim. For it, plaster or putty is used, which are then painted in desired color.

How to work with Styrofoam

There are no fundamental differences when working with mineral wool and expanded polystyrene. The sequence of events here is approximately the same as in the previous case. The wet method of fixing polystyrene foam on the surface of cinder blocks looks like this.

1. Preparatory work. Cinder block walls must be carefully cleaned, and the cracks present in them must be plastered. Next, the working base is primed and left to dry.

2. As in the previous case, the prepared adhesive solution is applied to the foam. Expanded polystyrene sheets must be placed on the surface of the foam block walls with dressing. Any gaps are filled mounting foam or adhesive composition.

3. When the foam is fixed over the entire area, it can be additionally attached with dowels. Then the insulation layer is primed and covered with a reinforced mesh. To fix it, you need to use a large amount of glue.

After completing such work, the owner can proceed to plastering the facade. Plaster gives cinder block walls higher thermal insulation and makes them aesthetically pleasing.

Responsibly carrying out the described activities, the owner will receive an excellent result. The cinder block house will be well protected from the cold. To do this, you do not need to spend a lot of effort and money.

Video. How to insulate a cinder block house

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Insulation of a cinder block house from the outside, technology for performing work

Cinder block is a versatile material that allows you to quickly build a large stone house. At the same time, these huge blocks are not suitable for every climate, so it is often necessary to insulate the walls from the outside for such houses. This material is made from the so-called slag concrete - a mixture of cement and slag crumbs, which is formed during the smelting of iron from ore. The slag itself is strong, porous, and in the block itself there is enough holes to ensure good thermal insulation. Often due to violation construction technologies the house does not meet the expectations of the owner, so it is required to perform additional insulation. It is worth doing in any case, if only because it will result in substantial energy savings. This article will describe how to insulate a cinder block house, namely, the main steps, as well as materials and construction technologies.

Material selection

Consider two main types of insulation that are most suitable for cinder block walls.

The first type is mineral wool or glass wool. With this insulation, you can cover the walls both from the outside and from the inside, they can also insulate the floors in the room from the basement side. It is stuffed either with the help of special staples, or in a network of boxes, which are then sheathed on top with some material. The main advantage is that pests do not start in it, and the area closes very quickly. This a budget option, which is much more affordable than the next type of material.

See also: How to insulate a house of expanded clay concrete blocks from the outside?

The second type is foam polymeric materials made in the form of sheets of various thicknesses. The most popular are polystyrene, polystyrene and polystyrene foam. Experts often consider them to be the same material, only foam ball stands apart, which is the cheapest of these materials for wall insulation. These materials are often insulated only from the outside.

The second type is preferable, but usually people look at financial opportunities. All of these materials are good.

The choice of insulation thickness

The insulation of a cinder block house will be successful only when the correct thickness of the wall covering is chosen. Accurate calculations quite complex, but based on experience, we can say that best thickness insulation of houses outside in Russia is a thickness of 10 centimeters. In this case, it is necessary to take into account not only the thickness of the insulation, but also the thickness of its coating - plaster or sheathing panels. For the southern regions of our country, you can make a thickness of 5-7 centimeters. The best advice will be obtained from those who already use such a house and have lived in it for at least one winter. Also plays a role and the thickness of the walls of the house. A cinder block house can also be cold due to an incorrect foundation, and then it will also have to be insulated, but this is a completely different front of work.

Before starting insulation from the outside or from the inside, it is necessary to check the walls for cracks or uneven filling of the seam, and refine all this, otherwise the procedure will not give the desired effect.

Step-by-step instruction

In order to perform the insulation of walls from cinder concrete, it is necessary to perform a series of works in sequence. Consider the order of work for sheet materials.

Exterior wall preparation. It is necessary to brush off the dust, remove the lagging fragments with emery, holes and potholes must be carefully aligned. After that, you need to start priming. At the same time, the primer must be viscous, otherwise the cinder block will absorb it, and then you will have to fork out for this simple stage.
Applying glue and pasting the walls with sheets of material. You need to press the sheets tightly, and after the glue dries, you must carefully coat all the seams.
Installing fasteners. With special dowels, foam sheets are pressed against the wall for greater insulation strength.
A fiberglass mesh is glued to the surface, which must be applied to the entire plane of the insulation. A special glue is used for it, and it is rolled out of rolls with a roller over the surface.
Applying a protective layer. It is usually flexible polymer blend based on cement. The surface is leveled.
Surface plaster. This is just a finish, usually it does not carry any power load or thermal insulation functions.
As for mineral wool, a frame is assembled for quick fasteners, which is clogged with pieces of insulation, and then the entire frame is covered with decorative trim - clapboard, thin siding, or even profiled iron laminated sheets.

mynovostroika.ru

Cinder block wall insulation

Today we will tell you how to insulate a cinder block bath from the inside and why, contrary to the instructions of heat engineers, you have to do exactly interior work. Houses should be insulated from the side of the street using one of two methods. The cinder block is laid in one row, unlike brickwork, there is no air buffer zone, and as you know, air - the best heat insulator. The blocks are afraid of moisture and they are very cold, so you can’t do without a heater in tandem with special films.

The choice of material for cinder block walls

Without insulation, a cinder block house will be cold.

Before we talk about the method of insulating cinder block walls from the outside and from the inside, let's decide on the materials:

In addition to thermal insulation materials, special films are used. Before we insulate a house from a cinder block, we will deal with the types of films (membranes) that are used to protect thermal insulation. There are three types in total:

wind barrier - not blown through, moisture and steam pass through;
waterproofing - protection against moisture ingress, allows steam to be removed from thermal insulation;
vapor barrier - does not let anything through.

It is important to lay the membranes on the correct side, otherwise they will not perform their tasks. In principle, the choice of thermal insulation largely depends on the conditions under which the thermal insulation will be used. For example, in a house or a bath, because in the latter there is not only an increased level of humidity, but also very high temperatures, especially in a steam room. It is very important that the thermal insulation endures high temperatures and does not emit toxic substances.

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Internal or external insulation

How to properly insulate a cinder block house: inside or outside? This issue has been discussed by us more than once and once again we repeat that according to the technology, thermal insulation should be attached from the side of the street. Only in this case, you do not risk, along with transferring the dew point to the inside of the wall, to get a worse result than before insulation. There are situations when you have to fix thermal insulation inside, for example, in a steam room, since by insulating a cinder block bath from the inside, you will protect the walls from moisture, which is also very important. concrete blocks in conditions high humidity will last much less.

In addition, the insulation of a cinder block house from the outside is necessarily accompanied by a calculation of the thickness of the insulation. In each case, this indicator will be different, the result is affected by:

your region of residence;
wall thickness.

During the construction of walls, the blocks are placed on edge or laid flat, and in one row. It turns out that there is no air buffer zone, as with brickwork. Practice has shown that even if you choose the largest blocks, such buildings cannot do without additional thermal insulation.

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How to insulate cinder block walls from the inside

The steam room in the bath is insulated from the inside.

Internal insulation of a cinder block house is not welcome, except that, for example, you can use special paint with ceramic hollow spheres or penofol. As independent materials they are ineffective. Thermal insulation of cinder block walls from the inside is practiced in steam saunas, when it is additionally necessary to protect the walls from moisture. In this case, the main thing is to prevent moisture from the steam room from getting into the insulation layer. Naturally, only mineral wool can be used. Method of work:

a wooden frame is being erected on the inside of the walls in the steam room;
mineral wool is laid between the guides, preferably basalt;
foil insulation is spread over the crate - it is very effective for saunas, as it covers IR radiation and does not let steam through;
the second tier of the crate is installed on top of the penofol;
a wooden lining is attached to the second tier.

Mineral wool must be laid in two layers and make sure that the joints do not match. The minimum insulation layer is 10 cm. The main thing is not to forget to glue the foam foam joints with special (not clerical) tape. Also, you can not neglect the ventilation gap between the penofol and wooden clapboard. Without it, the reflective insulation simply will not work, besides, the condensate on the penofol must evaporate. Penofol foil often has small holes that are invisible to the eye. Therefore, in order to be safe, you need to lay under penofol vapor barrier membrane.

Method of external insulation

Wet facade technique.

External insulation of a cinder block wall is carried out according to two methods:

wet facade;
ventilated facade.

Before you insulate a house from a cinder block from the outside, you should decide on a methodology to make it easier for you to figure out what will be more profitable. Wet facade - this is the application of plaster directly on top of the insulation. This method is possible with the use of mineral wool or foam (plain and extruded). The density of wool must be at least 50 kg/m. cube, polystyrene not less than 25 kg/m. cube, error in big side only welcome.

How to insulate a cinder block house from the outside using the wet facade method:

the wall must be smooth and primed;
thermal insulation is glued to the wall and fixed with dowels;
a layer of putty is applied, a reinforcing mesh is recessed into it, a special plastic corner;
the second layer of putty is tightened on top;
the surface is primed and painted.

Mineral wool is glued to a universal dry construction adhesive, which must be diluted with water, it can also be puttied. Styrofoam, in addition to such glue, can be attached to glue-foam - similar to mounting, but intended for polystyrene boards.

If the insulation is laid in two layers, then the plates of each layer must be fastened with dowels, because they will be loaded not only from the weight of the thermal insulation, but also from two layers of putty. Naturally, all seams are foamed and they should not match. Do not ignore the slopes, through them cold air enters the room.

Ventilated facade technique.

The technique of the ventilated facade consists in erecting a structure from the outside, where the thermal insulation layer will be blown. This is necessary to remove all possible condensate and for cooling, which is convenient in hot summers. The technique allows the use of:

mineral wool;
polystyrene with its derivatives;
liquid thermal insulation;
ecowool.

First, the first level of the crate is erected, then the turn of thermal insulation. Mineral wool and polystyrene are glued, and ecowool, polyurethane foam and penoizol are sprayed onto the wall by means of a compressor. After that, any film is laid, which should first of all be a wind barrier, and if it still does not let moisture through, this is only a plus. On top of the film, the next level of the crate is erected, which is needed so that there is a ventilation gap between the thermal insulation and the finish. In the buffer air zone, flows always circulate from the bottom up, like an exhaust hood. Given this fact, special attention should be paid to the degree of flammability of the materials used. You should choose non-combustible heaters, which we once wrote about.

Brief summary

Before insulating a house from a cinder block from the inside, remember the parting words of heat engineers: “Only external insulation gives a good result.” Inside, work is carried out only if it is necessary to protect the walls from the destructive effects of moisture, for example, in a steam room. In houses internal thermal insulation can be as an addition to the outdoor, nothing more. From the side of the street, the house can be insulated using two methods: a wet and ventilated facade. Before work, always consider which layer of thermal insulation is needed specifically in your case.

Most often, the developer thinks about conducting thermal insulation of a house from cinder blocks with his own hands after the object has been erected. This is largely due to the fact that cinder blocks seriously differ in their thermal conductivity.

Such an indicator can be in the range of 0.35-0.6 W / (m K). Thus, it is very difficult to determine in advance how well cinder blocks can insulate the interior space.

Why does a cinder block house need insulation?

If we start from the building codes reflected in SNiP 23-02-2003, only 1.5-2 m can be considered the normal thickness of cinder block walls, but such thick walls are extremely expensive. Suffice it to say at least that for such a structure it will be necessary to build a massive and expensive foundation.

In order for the walls of the cinder block house to be able to retain heat in the home, the best option would be to perform thermal insulation. Then it will be possible to save money, provide conditions for a pleasant microclimate, and also make the house more aesthetic.

Which side to insulate a cinder block house?

There are two fundamentally different options for thermal insulation of the walls of a cinder block house. If you place the insulation on the inside, there will be a great danger of condensation on the walls. This is due to the fact that the dew point will be between the insulation and the wall. As a result, the risk of condensation will increase significantly.

When placing insulation on the outside of a cinder block house, several advantages can be noticed at once. With this method, there is a saving of usable space, a decrease in the risk of condensation, and an improvement in the appearance of the building. Usually, the insulation is covered with a finishing cladding, which also protects the walls of the building. From this it follows that it is external insulation that is more suitable.

How to insulate a cinder block house

1. Mineral wool and glass wool

2. Expanded polystyrene and penoplex

The main advantages of penoplex are considered to be low thermal conductivity of 0.039 W / (m K), the ability to easily resist moisture, and ease of installation. There are options for expanded polystyrene or foam plastic, which are fire resistant.

How to lay insulation on cinder block walls?

Depending on which thermal insulation material is selected, the technology of work will vary. The specifics of handling each of these heat-insulating materials should be looked at separately.

How to work with mineral wool

1. When the surface is completely prepared, a support for the first row of thermal insulation material is installed on the plinth. Thanks to it, you can protect the thermal insulation from rodents.

3. The fixed thermal insulation layer is covered with glue. A reinforced mesh is planted on it, which is additionally processed with a cool compound and left for a day to dry completely.

Having completed such work, the owner can proceed to the decorative finish. For it, plaster or putty is used, which are then painted in the desired color.

How to work with Styrofoam

1. Preparatory work. Cinder block walls must be carefully cleaned, and the cracks present in them must be plastered. Next, the working base is primed and left to dry.

After completing such work, the owner can proceed to plastering the facade. Plaster gives cinder block walls higher thermal insulation and makes them aesthetically pleasing.