Expansion of openings in panel houses. Expansion of door and window openings in a concrete wall without dust

Expansions of openings - a widely demanded construction service in the repair or reconstruction of structures. This type of work has its own subtleties. The professional performer takes into account the type of wall - whether expansion of openings in the bearing walls or partitions is required. Specificity also varies depending on the material used to make the walls. So, it may be necessary to expand concrete openings, as well as:

• Reinforced concrete;
• Wooden;
• Brick;
• Aerated concrete.

The most popular today is the expansion of openings made of concrete or brickwork.

Expansion of doorways in brick walls

The expansion of doorways is relevant for redevelopment in apartments. As a rule, people tend to move away from standard solutions, trying to realize non-standard wishes for the geometry of space. The expansion of the openings makes it possible to mount more functional doors, for example, accordions or sliding type.

The expansion of window openings is also a rather demanded service, which allows to realize various design concepts. As in the case of door, window openings can only be changed after obtaining the appropriate permissions.

It is IMPORTANT even before any work is done to clarify whether the wall with the window (or door) is a load-bearing.

Expansion of openings: price \u003d result in AlmazorezService

Only specialists can guarantee a full range of services and excellent results with minimal customer involvement. It is enough for you to voice your wishes.

Our craftsmen apply the technology, which allows us to perform work of any complexity in a short time. We are expanding:

• Doorways in partitions, walls;
• Window openings;
• Arches and arched openings;
• Niches in the foundations;
• Apertures for technological, ventilation and other purposes.

The cost of expanding the opening at AlmazorezService is affordable. And this is not the only advantage. Among our advantages:

• Experienced specialists with a set of necessary skills;
• The latest equipment that meets international quality standards;
• Accurate work on modern technology;
• Record deadlines for all orders, even complex ones.

We are constantly improving our work methodology. For quality - we always answer! Contact.

Apartment renovation is often accompanied by a change in size or the transfer of door and window openings. An extension of the existing opening is required when replacing old door   to a modern one, often not matching the dimensions of the previously installed door.

Immediately, we note that the expansion of doorways is a redevelopment, and should be coordinated in the relevant departments of the housing inspection. Such work, carried out without special calculations on the redistribution of load in the supporting structures, leads not only to penalties, but also to the probable collapse of the wall and bringing the house into emergency condition.

In block houses of a modern building it is forbidden to widen openings. The blocks carry the load around the entire perimeter, so their redevelopment will lead to a violation of the calculated load parameters and distortion of the geometry of the structure.

The opening must exactly match the dimensions of the new door, so you need to correctly determine its dimensions. The following measurements are required:

• The height and width of the new door.
• Thickness and width of the door frame.
• The sizes of platbands.
• Nut height.

The width of the opening is the sum of the width of the door leaf, the thickness of the racks of the box, the size of the technological gaps. If the width of the box is less than the thickness of the wall in which the passage is arranged, then additional elements will have to be mounted.

The height of the opening is calculated by adding the height of the nut, the height of the door, the thickness of the box and the size of the gap. The marking of the opening on the wall is carried out with great accuracy, so that when decorating the door, the platbands completely close the technological gaps.

Horizontal reinforcement of openings

The expansion of the openings in the bearing walls, as well as in the partitions made of bricks, is performed with mandatory reinforcement with a metal profile. The openings in concrete walls can be strengthened after the dismantling of the wall is completed, brick partitions are strengthened before dismantling the brick to prevent the collapse of the upper rows.

As amplifiers, channel beams are used. The angular profile can be used in brick partitions that are not bearing and to strengthen the vertical parts of the openings. Consider the gain of the opening in brick wall   as the most common operation.

First, in accordance with the redevelopment project, the future contour of the opening is marked on the wall. The top line of the opening should coincide with the masonry seam. At the corners of the contour, holes are drilled through the wall, and the same markings are made on them on the other side of the wall.

Next, proceed to the device of the channel jumper. To do this, grooves (strobes) are cut in the wall, corresponding in size to the metal profile. The strobes should extend beyond the edges of the opening by 0.5 m in both directions, since according to the rules the width of the crossbar must exceed the width of the opening by at least 1 m.

In the metal profile, holes are drilled in advance for the coupling bolts. The channel is inserted into the prepared grooves and fixed cement mortar. After the mortar has solidified, the wall is drilled through the holes in the beam, the wall is drilled on the other side, and the channel bar is also mounted. Both profiles are connected by steel studs.

After the horizontal crossbar is installed, 2-3 rows of bricks are disassembled under it and steel plates are welded to the beams for final reinforcement. Installation of the jumper is completed, you can proceed to disassemble the masonry.

Vertical reinforcement of openings

When expanding the doorways in the bearing walls, make additional reinforcement with vertical metal racks, especially if the width of the opening is more than 1.5 m.

For the device of vertical racks, pairs of channel profiles are used, which are connected by threaded fasteners and steel plates. Vertical reinforcement is welded to the horizontal jumper to create a rigid structure.

The channels for vertical reinforcement of the opening are mounted in the same way as the horizontal metal crossbar.

Reinforcement of the opening with an angular profile

The expansion of doorways in interior non-load-bearing brick partitions can be strengthened with an angular metal profile. For corners, deep wall chipping is not required, it is enough to make grooves into which the shelves will completely enter.

The aperture is strengthened on both sides of the wall by connecting the crossbars and racks with studs in increments of no more than 30 cm (use at least 3 studs in any case). As with channel reinforcement, the vertical corners are welded to the horizontal jumper.

Dismantling walls while widening the opening

It is permissible to dismantle the concrete wall before strengthening. Concrete is removed by marking in small square or rectangular pieces. Preliminary, holes are drilled along the planned lines with a step of 3-4 cm, then they are connected together, cutting the wall with a grinder with a disk on concrete.

In the center of the concrete squares they strike with a hammer, knock them out of the wall and carefully clean. If the wall is reinforced, then the released reinforcement is cut off with a saw-grinder. During dismantling, supports or jacks are used.

The expansion of existing openings in concrete walls should not be carried out with a jackhammer or a powerful punch, as strong vibrations of the tool cause resonance in the thickness of the wall and disrupt the connection between concrete and reinforcement, which leads to cracking and weakening of the structure. After dismantling the concrete wall section, the opening is reinforced with a metal profile.

The brick wall near the opening is dismantled after the reinforcing structure. Bricks are removed carefully so as not to cause collapse. Dismantling the walls begins from above, from the reinforcing bridge.

First, a masonry mortar is removed from the seams with a puncher or drill with a flat nozzle, then the bricks are removed or broken into small parts with a chisel and a hammer. The contour of the opening is cut off by a grinder. If the dismantling area is large, then you can clean the opening along the contour, and break the inside of the masonry with a sledgehammer.

When expanding the openings, a lot of dust is formed, so all work is carried out in a closed work suit, respirator and safety glasses.

Window opening

Resizing window openings is carried out using shock-dynamic impact tools (perforators, drills, etc.) or by diamond cutting.

Window openings, like doorways, need reinforcement if they are located in load-bearing walls. First, the old window box is dismantled and the outline of the new opening is marked on the wall. Then the extra pieces of the wall are beaten with a sledgehammer or puncher.

If a hammer is used, cracks may appear in the concrete wall, reducing its strength. Therefore, the expansion of openings in prefabricated houses is best done by the diamond cutting method. In addition, after diamond cutting, the contours of the opening remain smooth and do not require additional processing.

The side parts of the new opening are sealed with cement mortar or other plaster material. After completion of work, you can install a new window.

Offers from MosKomplekt

The expansion of openings, like any redevelopment, requires special thoroughness of execution and training. Our company has been engaged in the construction and repair of private houses and public buildings for more than 7 years. Contact us and we will carry out work on the reconstruction of door and window openings in your apartment with high quality.

Our prices

The table shows approximate prices for broadening the openings in concrete and brick walls using manual diamond cutting. The final cost of the work is determined after assessing the complexity and conditions of the work.

• bearing walls   perceive their own mass and carry out the transfer of load from higher structures;
• self-supporting walls, based on the foundation, take only their load, but within all floors of the structure;
• curtain walls take only their own weight, and within the boundaries of one floor.

Before expanding the doorway, it is recommended to decide what the wall is considered. Since the architectural and planning sketch may suggest the presence of a load-bearing wall inside a separate dwelling. Therefore, the implementation of redevelopment is controlled by design organizations. Only specialists are entitled to issue an appropriate project with all the necessary calculations to ensure the safety of a multi-storey building.

Necessary tools

To ensure that the work is carried out safely, it is important to bring the appropriate tools with which you will complete the task of expanding the openings. So, prepare in advance:

• nail puller
• drill,
• hammer drill
• grinder
• sledgehammer.

How to create a doorway in a brick wall?

In this case, we will consider the expansion of the opening in the bearing and self-supporting brick wall.

• Previously, for safety, a jumper is installed over the passage made of reliable metal to strengthen the structure.
• Knocking down the plastered surface in the place where, according to the design, the opening in the brick wall. At the same time, it is worthwhile to achieve sufficient visibility of the lintel and masonry over its surface by 300 mm.
• Using chalk, outline the outline of the future passage. Please note that the width of the opening is no more than two meters. Otherwise, a collapse may occur due to uneven redistribution of loads. If it is necessary to make such a wide passage, it is important to additionally use supports in the form of columns.

Important! If the width of the aisle is greater than the jumper, it is recommended to support it with racks for the duration of the work. This will protect you from possible collapse.

• Next, you can begin to frame the pair of paired channels. Moreover, the contraction will occur through-type studs, washers and nuts. It is recommended that the deepening of the niche for mounting the channel be the same with the shelf. Only in this case, further concealment of the structure in the masonry cavity is ensured.
• To ensure that the channel screed is as it should, it is recommended to use the M-100 solution. It fills the bumps and cracks in the inner surface of the niche.
• Special holes are created in the walls of the channels, which are selected in size larger than the studs themselves. Please note that they must be aligned. The channel is mounted in a niche with the obligatory marking of the location of the through holes for further fixation. And only then they begin to fix the jumpers.

• Next, disassemble the masonry.
• The expansion of the opening in the supporting brick wall involves the implementation of smooth vertical edges. This is provided by a diamond wheel grinder.
• After cutting, which is characterized by the formation of a huge amount of dust, they begin to disassemble the masonry using a perforator.

Important! In the process of performing this kind of work, it is recommended to use personal protective equipment for respiratory and visual organs. Since a respirator and goggles, better than a closed type, will save you from a huge amount of dust and the departure of small particles of masonry.

• Then it is recommended to increase the side racks, smoothly leading to the jumper. In this case, it is better to use a metal angle of 75 - 100 mm. At the joints, the corners are fixed by spot welding. This is the only way to ensure increased reliability of the design.
• In the lower part, a spacer is created, which will later be hidden in a niche of the floor. All metal elements used are welded to provide a reliable frame.
• Only after this they start plastering. To achieve the strength and reliability of fixing the plaster, it is recommended to use a special construction net "netting". After performing decorating events, we can talk about the completion of the creation of the passage in brickwork.

It should be remembered that for decorating the aisle, you can use various finishing methods. In this case, it all depends solely on your wishes and the chosen style. The main thing is that the work is carried out correctly and in accordance with labor safety standards.

How to expand a doorway in a panel house?

Initially, it is worth doing some preparatory work so that everything goes according to plan and does not distract from the task. So:

• cover the furniture and other elements of the interior with construction film. This will allow you to protect the property from dust and dirt, which is necessarily formed in the process of expanding the passage in a panel house;
• in a construction supermarket, buy special bags for construction waste to immediately pack unnecessary wall residues and other waste, and take it out onto the street;
• do not forget about the use of personal protective equipment. In this case, you will need respirators to protect your respiratory system and glasses to protect your eyes.

Expansion of a doorway in a prefabricated house

• Initially remove the door. For this, platbands and extras are removed with a nail clipper; the door leaf is removed from the hinges by scraping; vertical racks are cut with a grinder and are torn off by a nail clipper.

Important! If expansion is assumed to be in height, the upper jumper is removed. If not, she remains in place.

• Next, mark the perimeter of the increase in the concrete passage, and percussion-type drill holes are made along this contour with a distance of 200 mm.
• It is recommended to cut the panels alternately on each individual side.
• When reaching the reinforcement in the wall surface, it is necessary to take a sledgehammer and remove unnecessary parts of the wall.

Important! The enlarged passage should be reinforced even in a non-bearing wall. To do this, the corners or segments of the rod of metal are spot-welded.

Height increase

First of all, it is recommended to install the supports. Then the grinder makes vertical cuts with the obligatory knocking down of excess concrete. A previously installed jumper is removed. And leave its edges in place or replace with brickwork. The new crossbar will be mounted higher, and the resulting bumps are neatly hidden by the solution. Subsequent finishing manipulations are allowed only after the wall surface has completely dried.

You should not risk it and carry out works of this kind in the load-bearing wall. If this is inevitable, strictly follow all safety rules and do not deviate from established building codes. This is not only administratively punishable, but also dangerous for the life of your family.

If you know the small subtleties, you are sure to expand the doorway to the required size with your own hands. There are no difficulties in this matter if you are not afraid of hard physical work.

The task is to complete the construction of a log house for year-round living. By the time we started working with Rovshan, we had a flooded basement 6x8 of blocks on a concrete slab with poor waterproofing, on which stood an old log cabin 6x6 (transported from another

plot) with a sloppy roof. It was necessary to repair the access road, roof rafter system, basement waterproofing, install a drainage system and storm sewer around the house, install a frost-resistant septic tank of 3 wells, install a water supply system (there was already a well), ventilation, prepare a street entrance to the basement, build a terrace, sheathe everything is outside with an imitation of a beam, completely insulate the first and second floors, install windows on the first floor and terrace, finish the first floor (fine finish of the basement, second floor and terra left for later), finish the bathroom with tiles and install a warm floor, shower and toilet, install a cast-iron stove with a chimney and insulation, install entrance and interior doors, install a through staircase socle / 1st floor / 2nd floor, pour formwork around the house, paint the house outside and inside, turn on the electricity and conduct wiring inside the house, install a kitchen. In short, a lot of things had to be done to live in peace this winter. The team began work in mid-July, by mid-September, all work was completed (2 months). Rovshan regularly personally supervised his employees, visited the facility more often than I did, helped with the purchase of building materials, and also helped correct those shortcomings that were made by the previous team. At the facility, in the neighboring old house, at the time of the work, my mother lived, who was completely satisfied with the Rovshan team, these are very nice and neat guys, we did not have any language problems. The cleaning of the construction site was carried out regularly. Minor alterations were carried out quickly and without unnecessary conversations. At the cost of work, everything was clear, as agreed. Rovshan very carefully and disciplined conducts all paper work, intermediate acts, ext. agreements, accounting of expenses and transferred funds. It turned out to be more difficult with estimates for building materials, it was not possible to calculate everything in advance, and we spent much more than we planned. I write a review a month after the end of all work, the house is used to its fullest, of the shortcomings - experts who then installed uninterrupted power say that the electrical wiring is not very neat in the house. Otherwise, the flight is normal, although the house will wait for the main test in winter and especially in spring, when the snow melts and the drainage system enters into active work. In the spring I will write an addition to the review (if it allows profi.ru).

Repair planning with redevelopment, as a rule, takes place in several stages. The initial stage - preparation and planning of future changes - for sure this stage will become the most interesting for you. When planning your future interior and planning changes, you will choose materials for decorating the rooms, the style of interior decoration, you may want to change the furniture to another, more modern type, change the old plumbing to a new one. In addition, preparation for repairs and redevelopment includes the selection of those changes in the layout that you want to see in your apartment. This may be the most minor changes such as redevelopment of doorways, or more serious intervention in the initial layout of the apartment, for example, redevelopment of the walls.

You can prepare for the redevelopment and repair both independently and with the help of specialists, designers. The choice of this or that way in the process of preparing for the redevelopment depends on the complexity of future changes and how clearly you imagine the future interior of the premises and the change in the layout of the apartment. For example, in order to change the location of the door, that is, perform the so-called redevelopmentdoorwaysYou are unlikely to need the help of a professional interior designer.

Examples of redevelopment of doorways:

Re-planning the transfer of the doorway is necessary in cases where it is necessary to more efficiently arrange furniture in the room, or to get additional usable area. Redevelopment of the expansion of the doorway - is necessary to replace the standard door with a more modern arched design. For the preparation of such minor changes, you probably will not need the help of a professional designer. But more significant changes, such as redevelopment of an apartment into a studio apartment, will require quite a long and painstaking work on zoning, selection decoration materials, furniture, home decoration, and in this case, you can’t do without the help of a professional designer.

The stage of preparation of the design project of the apartment is only the first step in the preparation for repair with redevelopment. The next important stage of preparation for work is the preparation of relevant documents for redevelopment of premises. The list of mandatory documents established by housing legislation includes:, a copy of the personal account, an extract from the house book about the number registered in the apartment. Also, depending on the complexity of the redevelopment of the apartment upon approval, you can limit yourself to either just a sketch of the redevelopment, or if you plan to carry out complex large-scale work, you will need to develop a full-fledged redevelopment project.

Project documentation:

If, for example, you want to perform a minor redesign likeredevelopment of the doorway   or redevelopment with the dismantling of the partition - in most cases these works are coordinated according to the sketch, that is, all changes are noted on the copy of the BTI floor plan, which then, along with the rest of the documents, is provided to the single window service of the Housing Inspectorate. But in the event that the redevelopment of doorways affects the load-bearing walls of the house, you can do without developing a redevelopment project, because for work involving an increased risk to residential safety, appropriate engineering calculations are necessary, which can only be prepared by specialists from a licensed design organization.
Example of redevelopment by sketch:

Examples of BTI floor plans and explications:

For the same reason, it is not recommended to carry out redevelopment without permission. After all, even if you want to carry out minor work such as redevelopment of doorways, it may be difficult for you, as a layman, to determine whether the wall is a load-bearing structure, which means unauthorized work can lead to an emergency in the house and cracks on the walls. In addition, even the smallest redevelopment relies on administrative responsibility. Even if you just re-plan the doorways or mount a new partition to make a dressing room, the utilities will oblige you to pay a fine, and then you will either have to reconcile the work already done retroactively or return the apartment to its previous appearance in accordance with the BTI floor plan.

Doorway Expansion:

Expansion of the opening in reinforced concrete walls prefabricated house   according to the complexity of coordination is equated to the device of a new opening. This concerns primarily residents prefabricated houses, so most of the interior walls are load-bearing.
Since all work involving the impact of load-bearing structures potentially creates a threat to an emergency situation - coordination of such redevelopments should take place according to the project. To draw up a redevelopment project, the owner will need to: apply to the organization with an SRO permit, which will execute the design of the project taking into account current building standards.

The author of the house project, in turn, will draw up a technical report on the condition of the supporting and enclosing structures. In the process of work, acts of covert work on reinforcing metal structures should also be drawn up. According to the current construction standards, the size of the standard opening of a panel house should be about 90 cm with a margin of at least 1 m from the outer wall. The location of the apartment on the upper floors of the building is more advantageous for expanding the opening.

Expanding it on the lower floors will be quite problematic. To complicate the situation even more - the owner’s desire to expand the opening front door. Since the Housing Inspectorate often interprets the extension of the front door as affecting common property, the customer may need to collect signatures of at least 2/3 of the owners of the house.