Interior walls of aerated concrete

Aerated concrete, although it has a concrete base, is a very porous material. The size of the porous cell is about 1 mm. Due to this, in a house built of such a building material, a completely healthy “breathing” microclimate is created - practically the same as in a house made of wooden beams.

Aerated concrete has high vapor permeability - and this means that, like a tree, it is able to absorb and accumulate moisture. Therefore, the interior walls of aerated concrete blocks must take into account this feature.

Consider how to choose the right materials, what methods and technologies to use and what work to be done, based on this.

Requirements for interior walls of gas blocks

Completed interior decoration of aerated concrete walls

When choosing a material for cladding walls of aerated concrete, you need to remember about its high hygroscopicity.

Therefore, two tasks arise simultaneously:

1. To increase the level of comfort in the room. To do this, make sure that the room does not increase the humidity. This can provide a vapor-permeable wall finish and ventilation system.
2. Reliably protect the walls of the gas blocks from the accumulation of moisture. Increased humidity inside the house will lead to the accumulation of moisture in the aerated concrete and its rapid destruction. In this case, vapor-proof materials are used.

Warming of the walls of aerated concrete outside

The interior walls of aerated concrete, whichever material is chosen, must comply with building codes.

If it is a vapor-permeable lining, then it should not lead to the slightest fluid retention in aerated concrete, and if vapor-permeable, to moisture accumulation under a layer of finishing material on the wall surface. These problems are solved by the right choice of materials and their high-quality installation.

Finished wall covering of the house from gazoblokov tree

Comparison of vapor-permeable and vapor-proof finish:

Attention! In general, the vapor permeability of the interior finish depends on the exterior option. If the facade, for example, is lined with brick without ventilation, or with ceramic tiles, then inside there must be a vapor-proof finish, as there will be no room to go out.

Cement plaster of aerated concrete interior walls

What types of finishes for aerated concrete walls are?

The most popular options for finishing walls of aerated concrete blocks from the inside:

• Creating a frame-hinged finish plasterboard or plastic / wood panels.
• Plastering.
• Block masonry (decorative brick, tile, artificial stone).
• Finishing putty.
• Coloring / application of wallpaper.

Facing walls of aerated concrete ceramic tiles

The most popular methods of interior decoration

Interior wall decoration in a gas-concrete house

Consider the most popular methods of finishing, their features, characteristics, performance, advantages, disadvantages and scope.

Type of finish	Features / Specifications	Scope / advantages / disadvantages
Drywall Decorating the walls of aerated plasterboard	Installation of drywall is carried out on a pre-mounted wooden, plastic or metal frame and has the following features: The surface of the wall of the gas blocks is primed with a special vapor-insulating composition. The frame is fixed with the help of special dowels on aerated concrete. For the wall to be ventilated, at least 5 cm of space should be kept between the sheets of drywall and the wall. If necessary, the insulation ventilated space will be filled with basalt or fiberglass plates with a mandatory para-insulation layer in front of the finishing sheets. There are at least three types of drywall: Standard applied in rooms with normal humidity. Water resistant, mounted in bathrooms, kitchens, pools. Fire resistant - used for boiler rooms and other premises where high fire risk remains. As an option to finish the wall of aerated concrete blocks, you can use plastic or wood panels. Their installation is carried out by the same rules.	Benefits: Improving the aesthetics of the interior. Create the most even and smooth surface of the wall. Creates the greatest possible effective warming of walls from a gas concrete from within. It gives the wall additional vapor barrier properties. You can hide all communications for hinged finish Low labor costs and the use of “clean” materials (compared to plaster or masonry decorative tiles or bricks) Disadvantages: The need to create a frame and its proper attachment to the wall of porous material. For rooms with high humidity, you need to perform a good vapor barrier and choose the right material for resistance to walls. The frame finish of the walls of aerated concrete plasterboard "eats" the useful volume of the room. When using plasterboard, additional finishing is required (putty, primer, painting or wallpapering). Wood and plastic panels are best applicable for rooms with a high degree of moisture content. It can be kitchen facilities, baths, bathrooms, pools. Drywall, depending on the type is used in all types of premises.
Plaster Plaster inside the house of gazoblokov	The plaster process is necessarily preceded by applying a waterproofing primer to the wall surface. In the further process of plastering consists of the following steps: Installation of reinforcing mesh. For maximum reliability of its fixing, special dowels for aerated concrete are used. Exhibiting alignment beacons. The distance between them should be no more than the width of the rule. Preparation of the solution and applying it on the surface of the walls with installed reinforcing mesh. After the plaster grabs (if it has a plaster base, then it is a few minutes), it is ground and, if necessary, plastered. In the future, the plaster is subjected to finishing. This can be painting, whitewashing, applying wallpaper, laying decorative tiles. If the stucco is a vapor-permeable finishing material, it must have the same property. As a material for plaster, it is best to use special, possessing high adhesive properties of dry mixtures. Instructions with photos (pictures) of how to properly dilute the mixture and use, usually attached to the package.	In the basis of plaster mixtures, cement or gypsum / lime is used as a binder. Cement sand / lime plaster has vapor-proof properties. It is used for maximum waterproofing of aerated concrete wall in rooms with high humidity. Gypsum-lime plaster interior walls of aerated concrete makes it possible to maintain a healthy microclimate in the living room. However, so that aerated concrete is not saturated with moisture, it can only be plastered on walls where the level of atmospheric humidity is at an acceptable level. Advantages of plastering: Improving the aesthetic qualities of the room. Creation of waterproofing (for vapor-proof plasters). Improving heat and sound insulation of the wall of aerated concrete. Hardening of aerated concrete wall, especially when finishing the aerated concrete walls outside is performed by the same method. In this case, the wall thickness increases by at least 10-15 cm. Disadvantages: Plastering is a rather complicated process, requiring skills and great physical labor. With non-compliance with the technology and the wrong selection of material, the plaster cracks, flakes and collapses, and also leads to the accumulation of damp, mold and fungus on the surface of aerated concrete.
Block decorative masonry (tile, brick, stone) Decorative trim inside the house of aerated concrete	Aerated concrete walls are often finished in the form of decorative brick / stone / tile masonry. Recently, however, this method has begun to be used for internal facing works. The only difference is in the choice of material. For interior decoration, it is preferable to use vapor-permeable materials: Gypsum. Lime. Sand. Clay. Naturally, the use of products for interior decorative blockwork of such materials is intended to preserve a healthy microclimate in the room. If the main task is to create a maximum waterproofing of the wall, then it is better to use the same materials that are used for exterior cladding. Cement. Plastic. Brick. Tile. Today, the interior walls are made of concrete walls using the so-called artificial stone. It can be based on a variety of components, but most often gypsum, lime and sand of various modifications. In general, the technology of indoor blocking is similar to the plastering process: preliminary preparation and priming of aerated concrete walls are also required.	Decorative block masonry is used in the interior decoration of premises for various purposes - from residential / office to production and storage. For bathrooms, kitchens, bathrooms, pools, saunas and baths it is better to use tiles or blocks of waterproof materials. Advantage: Large range of products in shape, color, texture, so you can create a unique interior decoration. Does not require finishing tweaks. When using vapor-permeable materials, a healthy indoor climate is maintained. When using waterproof materials can achieve good vapor barrier aerated concrete wall. Heat / noise insulation room rises. When using modern light decorative materials, the construction of the walls and the foundation does not bear a significant load. Smoothed irregularities of the walls. Disadvantages: With the wrong choice of materials and technology during operation it is possible that the walls of the gas-blocks under the masonry become wetted with the subsequent lag of the decorative blocks. When creating masonry on the basis of vapor-proof materials in the room should be a good ventilation system. When using decorative blocks of sufficiently large thickness (from 5 cm), the volume of the room decreases.
Finishing putty Finishing putty walls of aerated concrete	Finishing putty, as one of the options for final wall finishing of aerated concrete blocks and as preparation before painting or applying wallpaper. The material used is a special industrially manufactured plaster-based finishing putty. Paint and wallpaper applied to the topcoat must be made exclusively from vapor-permeable materials. Paints should have a silicate or silicone base, and wallpaper - paper.	It is used to align the walls of the gazoblokov. The filler material is vapor-permeable, so it can be used in rooms with normal humidity. Filling of walls of aerated concrete has the following advantages: Putty can be applied directly to the prepared wall of aerated concrete, bypassing the plastering process. Does not require special financial investments and labor costs. Does not reduce the volume of the room. Well aligns the wall before painting or applying wallpaper. Disadvantages: Filling without plastering does not have sufficient strength. Easily destroyed by dampness. Improper selection of paint and wallpaper will cause dampening and deterioration of the topcoat and aerated concrete wall.
Painting and applying wallpaper. Paint the walls of aerated concrete	Coloring and application of wallpaper carries not only a decorative function, but also a way to create a vapor barrier for a gas concrete wall. Wallpaper, like paint, can have both vapor-permeable and vapor-proof properties. Before applying the wallpaper or paint the wall must be prepared: Cleared of dirt, dust, traces of mortar and debris. Aligned. Primed. If necessary, stocked. Wallpaper can be: Paper. Flizelinovye. Vinyl. Washable Liquid. All dyes for application to the aerated concrete wall are divided into waterproof and vapor-permeable. Water resistant is mainly acrylic, and vapor permeable is silicate or mineral.	Depending on the type of room, its purpose, ventilation system and humidity indicator, a waterproof or, on the contrary, vapor-permeable base of coloring agents and wallpaper is selected. Advantages: Low price and minimal labor costs. Does not reduce the useful volume of the room. Large selection of colors and shades. Disadvantages: Minimum paroizoliruyushchy properties. With a high humidity of one paint or wallpaper will not be enough for reliable insulation of aerated concrete walls from moisture and damp. Does not improve sound and heat insulation of walls (if at least preliminary finishing putty is not used). With the wrong choice of materials and method of application there is an accumulation of moisture in the wall.

Interior walls of aerated concrete

Video material

Interior decoration of the walls of the house of aerated concrete blocks:

Criteria for choosing the method of finishing

Rough finish walls of gazoblokov

When choosing a method of interior decoration of aerated concrete walls for a particular room, it is necessary to proceed primarily from its purpose and climatic parameters, as well as the possibility of their change, budget and personal preferences or design ideas.

For those who are just starting to master this difficult skill, the video in this article shows you where to start, how to choose materials and make the walls of aerated concrete with your own hands.

Plaster interior walls of aerated concrete with their own hands

A private house

Finishing aerated concrete house inside

There are at least three types of premises in your own gas-block house:

1. With a normal level of humidity (halls, bedrooms, living rooms, children, hallways). For finishing, it is better to use ordinary drywall, wood panels, paper wallpapers, permeable paint and vapor-permeable plaster or decorative blocks of plaster, sand and lime.
2. With a high level of humidity (kitchens, bathrooms, saunas, swimming pool, doorway area facing the street). It is better to use waterproof plasterboard, plastic panels and tile.
3. Economic purposes in which the level of humidity may fluctuate (storerooms, plinths, boiler rooms). Ideally, cement-sand plaster should be used here; fire-resistant materials are applicable to the flue rooms.

Internal clean lining aerated concrete house

Office space, public institutions

Priming walls of aerated concrete office space

Finishing the interior walls of aerated concrete for public spaces should be based on the types of materials that ensure maximum durability of the building structure and, of course, meet design ideas in interior design.

The rooms, located far from the entrances / exits, should be veneered with vapor-permeable materials, and those that are close to and in contact with the atmosphere of the street - from waterproof ones.

Finishing aerated concrete walls office plasterboard

Workshops, warehouses, terminals

Preparing the wall of aerated concrete before finishing

Premises for production and storage purposes are always a source of moisture, dampness and constant temperature fluctuations. Therefore, lining walls of aerated concrete from the inside, in such buildings should be carried out using waterproof and vapor-proof materials.

What and how to putty the walls of aerated concrete blocks inside the house

After erection and plastering of the box at home, the question arises about its further finishing. Putty can be used for rough and clean options for the processing of aerated concrete walls. Many people confuse it with plaster, but they are completely different compositions, which also differ in the way they are used.

The putty is used as a leveling base for the finishing finishing layer of the walls of the house. This material is sold as a paste or powder, which should be diluted with water.

It is also used for sealing cracks and assembly seams. To do this, putty put a layer of 1.5 mm. If you need to use a thicker layer, then you need to use the paint mesh, then the mortar, penetrating between its cells, will be able to better fix on the wall.

For better adherence to the wall should be rubbed with sandpaper and apply a coat of primer. In this case, the putty is easy to apply with a thin layer not exceeding 3 mm, and it will not crack when dry.

Types of putties

There are several types of putty available:

• Cement . Can only be used inside the house.
• Glue . It is 10% glue, it also contains linseed oil.
• Epoxy . It is used very rarely, mainly for sealing joints between tiles. Its main advantage over another type of putty is easy removal of grease and dust.
• Gypsum . Cheap option that can be used in residential dry areas.
• Oily . It is made on the basis of linseed oil.
• Polymer The most expensive and high-quality putty.

Features of the use of putty for aerated concrete

It is used to align walls, seal cracks and joints, such a finish prevents the formation of bubbles when sticking wallpaper, they stick to it better and last longer.

For residential premises used gypsum plaster. It is used for rooms in which access of moisture is limited. Its main component serves as a filler and binder. Such material is distinguished by fine grinding.

For rooms with high humidity they use polymer and cement varieties.

The first is divided into two types:

1. Acrylic . The material consists of water, acrylic resin and chalk. After its application the surface becomes glossy. This type is universal and can be applied to any surfaces.
2. Latex . It consists of fillers, binders, antiseptics, plasticizers and hardening regulators. This type of putty at work shows high plastic properties, it should be applied in thin layers. After drying, the putty does not crack and does not crumble. It does not need to be diluted with water, it is sold in a completely finished form.

Polymeric material has no flaws, has only advantages, its only disadvantage is high price.

Cement putty consists of cement, sand, water and plasticizer. It is very resistant to moisture, but when applied to walls it shrinks heavily, it is used only for finishing aerated concrete inside buildings, with time cracks may appear on its surface.

Aerated concrete puttying

Finishing work at home begins after the building is settled, and all construction work on the construction of his box will end.

Preparation of mortar for putty

First you need to properly prepare the mixture, the quality of the finishing work will depend on its consistency. This process consists of several steps:

1. In the tank you need to pour a small amount of water and add the putty.
2. Stir the ingredients with an ordinary spatula.
3. To obtain a uniform consistency of the composition, use a mixer, if the mass is thick, then water should be poured into it.
4. Leave the resulting composition to infuse for five minutes, then stir again.

Now the putty can be applied to the wall. You should not knead a large amount of the mixture, you need to focus on the fact that the composition will need to be used for half an hour, and if you can not spend it in a specified time, it quickly thickens, and still have to knead the new batch.

If it is decided to prepare the walls for painting, then use acrylic putty, it is most effective in masking the cracks and flaws in the walls. Under the wallpaper and tile can be used gypsum and cement its counterpart.

Step by step instructions for applying putty

Grater wall leveling

Primer walls

Putting

The technology of its application indoors from aerated concrete consists of the following steps:

1. Preparatory work . They begin by leveling the walls of aerated concrete using a special grater for this material. If this is not done, then the flow of the mixture will be huge, and its thick layer can later fall off.
2. Application of primer . It should be applied after cleaning the walls from dust and dirt with ordinary water. You should not dilute the primer with water, as it will reduce the adhesion of the material. Primer is chosen depending on the purpose of the room. On aerated concrete is applied with a brush or sprayed with a conventional garden spray.
3. Drawing the first layer . For this process, a large spatula is used, when performing work it is located at an angle of 30 degrees. The mixture is applied from the bottom up with smooth movements. After it hardens, the mixture can be applied again.
4. Formation of corners inside the house . Their putty is produced with a special angular spatula. A small amount of putty is applied to it and then distributed in one upward movement.
5. Carrying out finishing trim . If necessary, you need to wipe the uneven places of the walls with sandpaper or float, and then you can paint the walls or stick wallpaper on them.

After completing the above steps, the inner walls of aerated concrete will take a decorative look.

It is worth noting that the putty is not only used as a finishing material for leveling walls, it is also used to seal cracks in them. For these purposes, choose its gypsum type, which will be able to provide aerated concrete with good ventilation. When closing up cracks and seams, a small spatula is used. After filling the voids it is necessary to level the surface with a float.

The use of putty for finishing aerated concrete blocks due to its ability to maintain an important condition for comfortable living - vapor permeability. The building material itself, prevents the ingress of moisture, but at the same time it carries oxygen into the dwelling, and the putty does not prevent this. If you carry out its application according to the proposed algorithm, it will create a durable coating on the surface of aerated concrete that can last for a long time.