Rules for facing walls of a house from aerated concrete brick

Selecting the proper facing wall materials is essential for improving the outside of your house. Bricks made of aerated concrete are becoming more and more well-liked because of their durability and light weight, which makes them a great option for building facades. Because of their well-known capacity for thermal insulation, these bricks can raise your home’s energy efficiency.

Following certain guidelines is necessary when using aerated concrete bricks to face walls in order to achieve a durable and attractive finish. Achieving durability and weather resistance requires proper installation. To ensure a strong bond and consistent appearance, the bricks must be laid in accordance with the manufacturer’s instructions.

Surface preparation is one of the most important factors to take into account when using aerated concrete bricks to face walls. Prior to beginning the installation, the substrate must be completely cleaned and leveled. This preparation reduces the possibility of unevenness or structural problems over time and guarantees that the bricks adhere correctly.

Selecting the appropriate mortar to lay aerated concrete bricks is another important step. The mortar needs to provide enough adhesion strength and work well with the bricks. For the bricks to bond firmly and the facade to last a long time, proper mixing and application methods are crucial.

For your article on "Rules for facing walls of a house from aerated concrete brick," here is a brief thesis statement: This post discusses important rules to follow when using aerated concrete bricks to clad walls. We discuss practical measures and considerations to create long-lasting and aesthetically beautiful facades, from preparation and material selection to installation techniques. Whether you’re building from scratch or remodeling, knowing these guidelines will help you improve the exterior durability and aesthetics of your house. This opening line establishes the focus of your writing on useful tips and important factors for your audience.

The pros and cons of the aerated concrete wall lined with brick

Bricks are the most profitable material to be faced with aerated concrete. What are the benefits of selecting it? Think about the benefits:

  1. Reliable protection against aggressive effects: snow, rain.
  2. Warranty of high -quality soundproofing indoors.
  3. Presentable facade.
  4. The ability to withstand absolutely any natural phenomena, due to the high strength of the structure.
  5. The gas concrete walls are endowed with vapor permeability, which means that the finish should have exactly the same property that is perfectly corresponded to brick.
  6. Brick increases the life of the dwelling.
  7. Great frost resistance and mechanical strength.

Similar to other materials, gas concrete walls have a few very important drawbacks:

  1. If the laying of gas blocks is with an air gap, then condensate will form in the wall cavity, which will cause the loss of the properties of the block much earlier.
  2. The need to make additional money for the purchase of facing materials.

Methods of wall cladding with brick

It turned out that there are three ways to clad gas block walls with brick: tightly against the walls, with air covering the space between the bricks, or in the style of a three-layer wall. They are all different from one another in terms of layout and bricklaying technique. Let’s focus on each one.

Close to the wall

This approach is rarely used and is only appropriate in non-heated rooms. When this technique is applied to heated buildings, warm air that tries to escape will condense and act as a catalyst to cause the wall to collapse from the outside.

Because brick and gas blocks have entirely different heat transfer coefficients, t.e., they cannot be connected strictly. They are prone to uneven expansion in extreme heat or cold, which will eventually erode the wall’s masonry.

With air gap without ventilation

This facing technique is thought to be long-lasting since it improves the walls’ thermal insulation. Remember that this method only applies to buildings without heating systems because the masonry used in this version lacks ventilation, which causes condensation to build up in the lower portion of the wall above the foundation. Installing a layer of thermal insulation between the brick and the gas block is advised by builders.

Three -layer wall with ventilated space

This type of masonry is thought to be the best in terms of the longer lifespan and technical qualities of construction materials. In the three-layer version, the brick masonry is the third layer, the ventilation space is the second, and gas blocks make up the first layer. Building a wall of this kind is not simple, as it requires a highly skilled process where accuracy in construction is essential.

A wall made of brick is created in areas where ventilation holes must be made. There is a formula that states that 10 square meters are made up of 35 square centimeters of holes in any order with a hole diameter of one centimeter. It is advised by builders to drill holes through the brick joints.

In order to allow the formed condensate to flow out into the street, the lower holes should be made with a slope on the street side.

Additionally, there is a technology for making ventilation boxes. The main point is that plastic boxes with unique holes are inserted into the vertical seams between the adjacent bricks rather than being filled with a solution. This is necessary to allow unrestricted airflow, and the holes above allow moisture to escape.

When choosing where to lay insulation, it’s important to make sure it has enough breathing room and is not covered in moisture. Cotton wool made of basalt is one such example.

Insulation of gas blocks with a lining made of facing brick

It is imperative that an aerated concrete home with brick siding be insulated. This is required to improve operation performance in addition to ensuring that the building’s heat is perfectly maintained. Thus, there are various insulation options that each person should think about independently:

  1. Keramzit – is a bulk insulation, which includes granules of burned clay.
  2. Mineral wool – includes mineral fibers. Builders recommend giving preference to the option that is made in plates. Important: mineral wool is quickly impregnated with moisture, which means that it needs waterproofing.
  3. Basalt cotton wool – it includes rock fibers. The insulation is highly resistant to fire and moisture, perfectly passing the air through itself. Such cotton wool is a convenient option for filling out the open space between the two walls.
  4. Penophol is a synthetic foil material. It has a small thickness, which is very relevant when there is too small passage between the skin and the wall.
  5. Polystyrene foam is a budget option, but at the same time it is not impregnated with moisture. Release form – stoves, due to which it is easily attached to the wall. It is interesting that this is the most popular material when warming gas blocks.

Depending on the kind of material, installing insulation requires a specific process. All varieties are mounted prior to creating a cladding, with the exception of expanded clay. Rubber and polystyrene are fastened with plastic-zontics dowels. If more thermal insulation is required, expanded clay can be added during the cladding-making process.

The thermal insulation components are sealed with mounting foam or a sealant to prevent any seams from showing between them.

Facing device technology

The cladding is formed using a slightly different technology depending on whether the building is new or already in use. It is worthwhile to give each a closer look.

During the construction of a new structure

The foundation is placed throughout the thickness of the wall under construction, t.e. for brick and gas block. The waterproofing of the basement is also made for the entire wall. Next, you can start laying the wall. What to put in the first place, decide for yourself: brick, gas block or all at the same time. But brickwork has a large number of seams in height, but you need to understand that they are noticeably thicker, but the blocks can be laid on glue in general. This is how the difference in shrinkage arises, but it is not significant, if it is said not about structures where there are many floors.

Fastening of aerated concrete and brick when facing a new building

Conventional reinforcement is used to fasten facing brick to aerated concrete. With the necessary diameter of bar or wire, you can make it yourself. A steel tape is also appropriate for these uses. Nevertheless, you should be aware of the following things:

  1. The sum of the values ​​of the cross -sectional area of ​​the reinforcement is not more than half of the square centimeter per square meter of new masonry.
  2. The number of reinforcing products per square meter is 3-5 pieces.
  3. Near the corners or openings at a distance of 20-25 cm, you need to take a row, the step of which is 25-30 cm.

You can use factory products in place of connections since they also serve to fasten the insulation.

High-quality survey-t must be provided when installing connections.They must be submerged in a solution that alternates with them, roughly ten diameters apart.

Cladding of the outer walls of the operating building

You must construct a new masonry foundation in such a case. Whichever type is selected, what matters most is that it can support additional weight—that is, it can withstand the walls, ceilings, roof, etc.—that the foundation is already able to support.

Such cladding is formed by fixing connections to dowels. It is preferable to drill holes in the wall and mount the rods from the inside using washers. It is possible to insert rods into blind holes. Avoid using a standard solution whenever possible; epoxy resin-based glue works well in this situation.

Self-adjacent bolts work well for fastening because they can be attached to aerated concrete blocks and the seams between them almost instantly and with good quality.

Regarding aerated concrete brick facing walls, there are certain rules that must be followed in order to achieve a long-lasting and beautiful result. First and foremost, the substrate must be properly prepared. This is giving the surface a thorough cleaning to get rid of any residues, dust, or dirt that can interfere with adhesion.

Next, it’s important to choose the correct adhesive. To guarantee a solid bond, use an excellent adhesive meant for aerated concrete bricks. A secure attachment of the facing materials is ensured by evenly applying the adhesive and giving it enough time to cure, as directed by the manufacturer.

When selecting the facing material, one must take practicality and aesthetics into account. Different styles and levels of durability are offered by materials such as decorative plaster, natural stone, and ceramic tiles. Make sure the material you select blends in with the house’s overall style and climate.

In order to ensure durability over time, proper installation techniques are necessary. Make sure that the joints are uniformly spaced and sealed correctly by paying attention to details like this. In addition to improving appearance, properly finished corners and edges stop water infiltration and potential damage.

The last line of defense for the facade’s integrity is routine maintenance. Maintaining the aesthetic appeal of the aerated concrete brick walls and extending the life of the facing materials can be achieved by regularly checking for signs of wear or damage and taking immediate action to address them.

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Michael Korotkov

Architect with ten years of experience in the design of facades. In my work I always try to find a balance between aesthetics and functionality. It is important for me that the facade is not only beautiful, but also meets all climatic and technical requirements.

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