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

Opening extensions are a widely demanded construction service in the repair or reconstruction of structures. This type of work has its own subtleties. A professional performer takes into account the type of wall - whether expansion of openings in load-bearing walls or partitions is required. The specifics vary depending on the material of 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 work 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, "accordion" or sliding type.

The expansion of window openings is also a fairly popular service that allows you to implement various design concepts. As in the case of doors, window openings can only be changed after obtaining the appropriate permissions.

IMPORTANT, even before performing any work, clarify whether the wall with a window (or door) is a carrier.

Expansion of openings: price = result in "Diamond CutterService"

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 masters use 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 archways;
• Niches in foundations;
• Openings for technological, ventilation and other purposes.

The cost of expanding the opening in the AlmazorezServis company is democratic. And this is not the only advantage. Among our advantages:

• Experienced professionals with a set of necessary skills;
• The latest equipment that meets international quality standards;
• Accurate work on modern technologies;
• Record terms of execution of all orders, even complex ones.

We are constantly improving the methodology for performing work. We are always responsible for quality! Contact.

Repair of an apartment is often accompanied by a change in size or transfer of door and window openings. Expansion of the existing opening is also required when replacing old door to a modern one, often not matching in size with a previously installed door.

We note right away that the expansion of doorways is a redevelopment, and must be coordinated with the relevant departments of the housing inspection. Such work, performed without special calculations for the redistribution of the load in the supporting structures, leads not only to penalties, but also to the likely collapse of the wall and bringing the house into an emergency state.

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

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

• Height and width of the new door.
• Thickness and width of the door frame.
• Casing sizes.
• Threshold height.

The width of the opening consists of the width of the door leaf, the thickness of the frame racks, and 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 sill, 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 cover the technological gaps.

Horizontal reinforcement of openings

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

Channel beams are used as amplifiers. The corner profile can be used in brick partitions that are not load-bearing and to strengthen the vertical parts of the openings. Consider the reinforcement 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. Holes are drilled through the wall at the corners of the contour, and the same markings are made along them on the other side of the wall.

Next, proceed to the device channel jumper. To do this, grooves (strobes) are cut in the wall, corresponding in size to the metal profile. The gates should protrude 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.

Holes for the tie bolts are pre-drilled in the metal profile. The channel is inserted into the prepared grooves and fixed cement mortar. After the mortar has hardened, the wall is drilled through the holes in the beam, the wall is ditched on the other side, and the channel beam is also mounted. Both profiles are connected with steel studs.

After the installation of the horizontal crossbar, 2-3 rows of bricks are dismantled under it and steel plates are welded to the beams for final reinforcement. The installation of the jumper is completed, you can begin to disassemble the masonry.

Vertical reinforcement of openings

When expanding doorways in load-bearing walls, additional reinforcement is made with vertical metal posts, 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 with threaded fasteners and steel plates. The vertical reinforcement is welded to the horizontal web to create a rigid structure.

Channels for vertical strengthening of the opening are mounted in the same way as a horizontal metal crossbar.

Reinforcing the opening with a corner profile

The expansion of doorways in interior brick partitions that are not load-bearing can be reinforced with a corner metal profile. For the corners, deep wall chasing is not required, it is enough to make grooves into which the shelves will fully fit.

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

Dismantling walls when expanding the opening

It is permissible to dismantle a concrete wall before strengthening. Concrete is removed by marking in small square or rectangular pieces. Preliminarily, holes are drilled along the marked lines in increments of 3-4 cm, then they are connected to each other, cutting the wall with a grinder with a concrete disc.

The center of the concrete squares is struck with a hammer, knocked out of the wall and carefully removed. If the wall is reinforced, then the released reinforcement is cut off with a grinder saw. During dismantling, props or jacks are used.

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

The brick wall near the opening is disassembled after the reinforcing structure is installed. Bricks are removed carefully so as not to cause collapse. The dismantling of the wall begins from above, from the reinforcing lintel.

First, the masonry mortar is removed from the joints with a perforator or drill with a flat nozzle, then the bricks are removed or broken into small pieces with a chisel and hammer. The contour of the opening is cut off with 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 openings are widened, a lot of dust is generated, so all work is carried out in a closed work suit, a respirator and goggles.

Window opening expansion

Changing the size of window openings is carried out using shock-dynamic impact tools (hammers, drills, etc.) or by diamond cutting.

Window openings, as well as doorways, need to be reinforced 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 beat off the extra pieces of the wall with a sledgehammer or puncher.

In the case of using a perforator, cracks may appear in the concrete wall, reducing its strength. Therefore, the expansion of openings in panel houses is best done by diamond cutting. 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 care in execution and professional training. Our company has been building and repairing 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 the widening of 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 the higher located structures;
• self-supporting walls, based on the foundation, take only their own 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 to be. 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 have the right to issue an appropriate project with all the necessary calculations to ensure the safety of a multi-storey building.

Required Tools

In order for the work to be 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,
• perforator,
• grinder
• sledgehammer.

How to create a doorway in a brick wall?

AT 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 of reliable metal to strengthen the structure.
• Knocking down a plastered surface in the place where, according to the project, there is an opening in a brick wall. In this case, it is imperative to achieve sufficient visibility of the lintel and masonry above its surface by 300 mm.
• Using chalk, mark the outline of the future passage. At the same time, please note that the width of the opening is no more than two meters. Otherwise, collapse may occur due to uneven redistribution of loads. If it is necessary to make such a wide passage, then it is important to additionally use supports in the form of columns.

Important! If the width of the passage turned out to be 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 a pair of paired channels. Moreover, the tightening will occur with through-type studs, washers and nuts. It is recommended to deepen the niche for mounting the channel in the same way as the shelf. Only in this case, further concealment of the structure in the masonry cavity is ensured.
• In order for the channel screed to be as it should be, it is recommended to use the M-100 solution. They fill the irregularities and cracks of 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 a mandatory mark of the location of the through holes for further fixation. And only then proceed to fixing the jumpers.

• Next, the masonry is disassembled.
• The expansion of the opening in the bearing brick wall involves the implementation of smooth vertical edges. This is provided by a grinder with a diamond wheel.
• 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 vision organs. Since a respirator and goggles will save you from a huge amount of dust and flying away of small masonry particles, it is better to have a closed type.

• Then it is recommended to increase the side racks, smoothly leading to the jumper. In this case, it is better to use a metal corner 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.
• A spacer is created in the lower part, which will later hide in the floor niche. All metal elements used are welded to ensure a reliable frame.
• Only after that start plastering. In order to achieve the strength and reliability of fixing the plaster, it is recommended to use a special building mesh "chain-link". After completing the decorating activities, we can talk about the completion of the creation of the passage in the brickwork.

It is worth remembering that various finishing methods can be used to decorate the passage. In this case, everything depends solely on your wishes and the chosen style direction. The main thing is that the work is carried out correctly and in accordance with labor safety standards.

How to expand the 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 furniture and other interior elements with construction film. This will allow you to protect your property from dust and dirt, which is sure to form in the process of expanding the passage in a panel house;
• in a building supermarket, buy special bags for construction waste to immediately pack unnecessary wall residues and other waste and take it out into the street;
• Don't forget to use personal protective equipment. In this case, you will need respirators for respiratory protection and goggles for eye protection.

Expansion of the doorway in a panel house

• Remove the door first. To do this, the platbands and dobors are removed with a nail puller; the door leaf is dismantled from the hinges by prying with a crowbar; vertical racks are cut with a grinder and torn off with a nail puller.

Important! If expansion in height is expected, the upper jumper is removed. If not, she stays where she is.

• Next, the perimeter of the increase in the concrete passage is marked, and holes are made along this contour with a distance of 200 mm with an impact type drill.
• It is recommended to cut the panels alternately from 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! An oversized passage should be reinforced even in a non-load-bearing wall. For this, corners or segments of a metal rod are built up by spot welding.

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. The 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 irregularities are carefully hidden with mortar. It is allowed to perform subsequent finishing manipulations only after the wall surface has completely dried.

It is not worth taking risks and doing work of this kind in a load-bearing wall. If this is unavoidable, 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 will definitely 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 started construction of a log house for year-round use. 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 house 6x6 (transported from another

plot) with a carelessly made roof. It was necessary to repair the access road, roof truss system, basement waterproofing, install a drainage system and storm sewer around the house, install a frost-resistant septic tank from 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 outside with an imitation of timber, completely insulate the first and second floors, install windows on the first floor and terrace, carry out a fine finish on the first floor (finishing the basement, second floor and terrace was left for later), tile the bathroom and install a warm floor, shower cabin and toilet, install a cast-iron stove with a chimney and thermal insulation, install entrance and interior doors, mount a through staircase basement / 1st floor / 2nd floor, pour formwork around the house, paint the house outside and inside, start electricity and wire inside the house, install a kitchen. In short, a lot of things needed to be done in order to live in peace this winter. The team started work in mid-July, by mid-September all work was completed (2 months). Rovshan regularly personally supervised his employees, visited the site more often than I did, helped with the purchase of building materials, and also helped to correct the shortcomings that were made by the previous team. At the site, in a neighboring old house, at the time of the work, my mother lived, who was completely satisfied with Rovshan's team, they are very nice and tidy guys, we did not have any language problems. The site was cleaned regularly. Minor alterations were carried out quickly and without further ado. The cost of the work was clear, as agreed. Rovshan is very attentive and disciplined in all paperwork, intermediate acts, additional. agreements, accounting of expenses and transferred funds. It turned out to be more difficult with the estimate for building materials, it was not possible to calculate everything in advance, and we spent much more than we planned. I am writing a review a month after the end of all the work, the house is used to its fullest, from the shortcomings - the specialists who then installed the uninterruptible power supply say that the electrical wiring in the house was not done very carefully. Otherwise, the flight is normal, although the house is waiting for the main test in winter and especially in spring, when the snow melts and active work the drainage system will come in. In the spring I will write an addition to the review (if profi.ru allows it).

Planning for repairs with redevelopment, as a rule, takes place in several stages. The initial stage - preparation and planning for future changes - for sure this stage will be the most interesting for you. When planning the future interior and changes in the layout, you will choose materials for finishing rooms, the style of interior design, you may want to change furniture for another, more modern type, change old plumbing for a new one. In addition, preparation for repair and redevelopment includes the choice of those changes in the layout that you want to see in your apartment. It can be like the most significant changes such as redevelopment of doorways, as well as more serious interference with the original layout of the apartment, for example, redevelopment of walls.

You can prepare for redevelopment and repair both independently and with the help of specialists, designers. The choice of one way or another in the process of preparing for 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, to perform the so-called redevelopmentdoorways, you are unlikely to need the help of a professional interior designer.

Examples of redevelopment of doorways:

Redevelopment moving the doorway is necessary in cases where it is necessary to more rationally arrange the furniture in the room, or to obtain additional usable space. Redevelopment expansion of the doorway - is necessary to replace the standard door with a more modern arched design. To prepare such minor changes, you most likely 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 finishing materials, furniture, interior items, and in this case you cannot do without the help of a professional designer.

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

Project documentation:

If, for example, you want to do some minor re-planning likedoorway remodelingor redevelopment with the dismantling of the partition - these works are in most cases agreed upon according to the sketch, that is, all changes are noted on a copy of the BTI floor plan, which is then provided, along with the rest of the documents, to the one-stop 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 in order to carry out work associated with an increased risk to the safety of living, appropriate engineering calculations are needed, which can only be prepared by specialists from a licensed design organization.
An example of redevelopment according to the sketch:

Examples of BTI floor plans and explications:

For the same reason, it is not recommended to carry out redevelopment arbitrarily. After all, even if you want to carry out minor work like redevelopment of doorways, it can be difficult for you, as a non-specialist, to determine whether the wall is a load-bearing structure, which means unauthorized work can lead to an emergency in the house and the appearance of cracks on the walls. In addition, even the smallest redevelopment is subject to administrative responsibility. Even if you just redevelop 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 coordinate the work already completed backdating or return the apartment to its previous appearance in accordance with the BTI floor plan.

Expansion of doorways:

Expansion of the opening in reinforced concrete walls panel house in terms of complexity of coordination, it is equivalent to the device of a new opening. This applies primarily to residents. panel houses, so most interior walls are load-bearing.
Since all work involving load-bearing structures potentially creates a threat of an emergency, the coordination of such redevelopment should take place according to the project. To draw up a redevelopment project, the owner will need to: contact an organization with SRO approval, which will complete the design of the project, taking into account current building codes.

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 hidden work for reinforcement with metal structures should also be drawn up. According to the current construction standards, the size of a standard opening of a panel house should be about 90 cm with a distance of at least 1 m from the outer wall. The location of the apartment on the upper floors of the building is more profitable for work to expand the opening.

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