How to properly raise the roof of a house? How to raise the roof of a house - general recommendations How to raise the walls of a house without dismantling the roof

As a rule, all old houses have one problem - low ceilings. Such a room is beneficial in terms of heating, but for installation modern furniture Tall cabinets create certain problems. And this situation itself evokes a feeling of pressure from above. To solve this problem, do not disassemble the roof. It can be raised along with the ceiling. To do this you will need several jacks and a metal channel. Now we will try to understand in more detail how to raise the roof of a house installed on brick and wooden walls.

Tools and materials used to raise the roof of a brick house

The roof of a small country house If you wish, you can lift it with your own hands to the desired height, without having to disassemble it. To work you will need to prepare following materials and tool:

• The main mechanism that will raise the roof is jacks. You will need at least three of them, and it is better if there are four of them.

  Advice! For lifting works It is better to give preference to oil jacks designed for a load capacity of five tons or more.

• Wooden poles are prepared according to the number of jacks. The wood must be strong in compression, such as oak or beech. Instead of wooden poles, you can take a metal channel or pipes.
• Under the jacks you will need wide, strong pads made of sheet steel or oak boards with a thickness of at least 50 mm. The pads will prevent the jacks from pressing into the floor when the ceiling is raised.
• As each beam rises, temporary supports must be placed under them. For these purposes, pieces of wooden beams or bricks will be used. The number of supports should be enough for all the beams, so it is better to prepare with a reserve.
• After raising the entire roof along with the ceiling, the walls will have to be built to the same height. At this point, the appropriate materials (brick, adobe, etc.), as well as the mortar, must be ready. Their number is calculated in advance based on the height of the added rows.

If the house is supposed to new roof, it is advisable to dismantle the old covering before raising the roof. This will reduce the pressure on the jacks, and, consequently, on the floor itself.

Important! Raising the ceiling of a house along with the roof with jacks does not cause damage load-bearing structures. The rafter system and walls remain intact.

The process of raising the ceiling of a brick house

So, having decided to increase the ceiling height of your home, you need to be prepared for any unforeseen situations. Firstly, the work is organized in summer period when the weather is dry and windless outside. Secondly, it is advisable to remove all furniture and other attributes from the living space. It is better if the house is completely empty.

When everything is ready, you can begin lifting work:

When the mortar in the brickwork has hardened, you can begin waterproofing, insulation and other finishing work.

In the video you can see the process of raising the roof:

Raising a ceiling with a roof is a very serious matter. In order not to ruin your house with inept actions, you need to carefully calculate everything, call helpers and not rush into it. But there is no point in delaying this matter. The roof raised on jacks is very shaky. An accidental gust of wind can cause irreparable damage to the structure.

Raising the walls begins with the internal masonry, provided that they are double, for example, made of adobe and brick. When all the rows of adobe have been laid out, begin the facing brickwork.

Raising the roof in any case will have a bad effect on the roofing. Fragile material will be particularly affected, e.g. asbestos cement slate or tiles. Roof covering After such a procedure, it is advisable to replace it.

Raising the ceiling in a wooden house

To raise the ceiling wooden house It is not necessary to move the entire roof. There are two tricks that can be used to solve this problem.

Actual ceiling lift

The actual raising of the ceiling involves dismantling part of the structure, but the roof itself remains intact. Wooden houses have a certain distance between the arch of logs and the ceiling. Alternatively, you can use large space attic. Due to these voids, an enlarged ceiling is obtained.

You can do similar work with your own hands in any weather:

• Work begins with dismantling the old ceiling. Remove all finishing coating and the sheathing to which it was attached. It is important not to touch during dismantling load-bearing beams, otherwise the integrity of the house will suffer. All thermal insulation will also have to be removed, after which you can estimate the size of the free space from the old ceiling to the roof vaults. Usually in private small houses This method makes it possible to raise the ceiling by 80 cm.
• When only load-bearing beams remain from the old ceiling, they begin to manufacture new design. For a new ceiling above the old beams, new elements made of wooden beams are attached or welded metal carcass. Next comes the sheathing with insulation with finishing material. The old beams that remain visible can be decorated.

At the end finishing works the ceiling actually gets higher.

Visually raising the ceiling

Visually raising the ceiling means creating the effect of spaciousness inside a low wooden house. Moreover, not only the roof, but also himself old ceiling no need to disassemble. Various are used design ideas. Alternatively, attach a new one ceiling decoration in light colors. Dark colors will make the room even smaller. A good effect is achieved by 15 cm wide borders around the perimeter of the ceiling. Lighting is installed inside. It is made from spotlights illuminating the upper part of the room. The lighting effect visually makes the ceiling high.

We have looked at just a few ideas on how to raise the roof of a house, as well as the ceiling using mechanical devices and visually. It should be noted that the method of such work is determined individually for each building, and before starting work it is advisable to consult with specialists.

Sergey Novozhilov - roofing materials expert with 9 years of experience practical work in area engineering solutions in construction.

Old wooden houses were built with the expectation minimum height. This was necessary for fast heating premises. Today, the requirements have changed, heating technologies make it possible to heat fairly large and high areas, so owners are thinking about expanding the space with minimal costs. Let's consider how to raise the ceiling in a private house without the services of specialists and the option of using technical units.

Options for increasing ceiling heights

So that the owner can choose how to raise the ceiling in wooden house, all possible methods should be considered.

There are several of them:

1. Lowering the floor level. This option is used only for buildings on a solid foundation of sufficient size. If the base foundation is dilapidated and low, lowering the floor will lead to distortion and deformation of the entire structure.
2. Changing the finishing option. The technique is useful for sheathed planes, for example, installed suspended, hemmed structures. The frame for the sheathing sheets lowers the ceiling height by 15-20 cm; when replacing the finishing, the space will increase by exactly these figures.
3. Changing beams. It is important to determine bearing capacity

elements - if the beams do not have a load, massive lamellas can be replaced with lighter, thinner dies. An option with lifting the entire structure is available for monolithic structures

, but you can raise the roof - this technique will increase the height of the room. Both methods require the use of technology, so a master without experience will not be able to do it on his own.

Techniques for increasing ceiling height

Before starting work, you need to determine the reasons for the decrease in height. If the house was originally built with low ceilings, only the roof raising technique will do. In all other cases, you need to look for a problem - errors at the design stage, shrinkage of the structure, incorrect choice of finishing materials.

If there is an error in the design, then radical alterations will be required, and with natural shrinkage, all decisions are made only after examining the soil by a professional, otherwise it can cause distortion and the appearance of cracks on the wall panels and base. The simplest option is to replace the ceiling finish, but even here a step-by-step implementation of the work is required. preliminary preparation

tools, materials and the premises of the house itself.

Preparatory stage

First you should inspect the walls and roof. This is necessary to identify defective, deformed and rotten logs, areas that could cause a decrease in the height of the ceiling plane. Then the foundation is inspected to determine the level of shrinkage and the strength parameter of the base foundation. If the foundation is cracked, then raising the ceiling in an old wooden house by increasing the height of the entire structure will not work; the base will not support it. The next stage of preparation is studying technical passport home (project) or inspection design features object. In this case, you need to exclude possible risk

distortion of window openings, door groups, and only then choose a way to increase the ceiling height in a private house. Advice! When inspecting the attic space Special attention is given to floors and beams. No bearing load on the elements, non-residential attic

- advantages that will allow you to raise the height of the rooms by a significant distance.

If the foundation is strong and high, by lowering the floor you can increase the height of the rooms to 25 cm. Before starting work, the room is cleared of furniture, objects, and equipment.

Then the work is performed in the following order:

• Use a crowbar or nail puller to remove the fixing hardware on the old floor;
• Unscrew and remove the cover;
• remove old logs by cutting them out with a saw or hacksaw;
• carefully remove pieces of joists extending outside the room;
• use a mixture of cement and sand to seal holes from old logs in the walls;
• for new logs, cut openings below the level of the previous ones by 20-25 cm;
• prepare new logs, insert them into the recesses;
• post thermal insulation materials on the new floor (suitable mineral wool insulation, which fits between the lags);
• lay subfloors on top of the insulation.

After completing all the work, you can sew up the floors with finishing materials.

Important! Wooden elements pre-impregnated with fire retardant, antiseptic and other compounds to repel pests. After impregnation, the wood must be dried and only then used for work.

Method with changing ceiling cladding

Let's look at how to increase the ceiling height in a wooden house where the ceilings are lined frame structures. Work required complete dismantling old covering and finishing of the plane without a frame at a level above the beams. The method is simple, accessible to the master without experience.

The operating algorithm is as follows:

1. Remove the old decor. If finishing in good condition, then the sheets should be removed carefully, using sharp knife to avoid damaging the panels.
2. Disassemble the sheathing. You will need a screwdriver.
3. Inspect the beams on the ceiling. Remove rotten, damaged pieces, and treat the timber that has retained its quality with a fire retardant, antiseptic, prime and dry.
4. Now choose the material with which the ceiling will be finished. Most often, owners use lining. And the plane should be sewn above the level of the beams.

On a note! Light wide lamellas visually raise the plane, and if you take narrower lamellas light shades, then they will not only raise the ceilings, but also visually expand the space.

If the beams are dark in color, then light lining or trim made from another material will look especially aesthetically pleasing. Beams should be treated with antiseptics, you can sheathe them with boxes or sheets of plasterboard, paint them or cover them with tinting or varnish.

Replacing ceiling beams

When considering ways to make the ceiling higher in a wooden house, sometimes it is enough to replace massive beam elements with lighter ones. The method is only suitable if the structures do not carry loads and are not the main components interfloor ceilings. The work will not take much time. You should first disassemble the ceiling covering, then fix it ceiling structures ties or supports, and then cut the beams at the walls.

Advice! To avoid warping the entire structure, it is easier to ask an assistant to hold one end of the beam while the other is cut. Otherwise, the cut end may hang and the second cut will be oblique. If the beam is long, it is cut out in pieces, starting from the middle of the premises.

After cutting out the beam, the tie rods are fixed to the rafter system at the required height level (the height of the future ceiling is determined). The entire structure is covered with finishing material in the form of sheets of plywood, plasterboard, and then decorated.

House raising technique

The work cannot be done alone; the help of several people is required. Before starting work, it is important to assess the lifting height so as not to cause the entire object to skew. Several jacks with high lifting capacity will also come in handy.

Important! At one time the house rises to a height of no more than 50 mm. If you need to raise it higher, then the work is performed in several approaches. Each stage of raising the structure is accompanied by the subsequent fixation of the house on bars and supports - they need to be prepared in advance.

The work is performed as follows:

• place jacks around the perimeter of the object;
• distribute the load across all units;
• raise the house to a height of 50 mm;
• you can fix the position of the structure with wedges;
• after raising the structure, build a concrete foundation under the house;
• as soon as new base sets and dries, remove supports and jacks.

After the base base has completely dried and the lifting equipment has been removed, new floors can be formed. The work requires a lot of time and effort.

Advice! When raising a structure to a height of more than 50 mm in several stages, the supports are not removed until the very end of the process. Each time you need to replace the old wedges with new ones with increased thickness. How larger area at home, the more jacks there should be.

How to raise the roof

The method is performed only after careful preliminary calculations. It is necessary to involve a specialist who can calculate the lifting height without compromising the integrity of the wall panels, increasing the load on load-bearing elements.

Important! Before raising the roof, the structure is strengthened around the perimeter by installing a connecting timber frame along the base of the roof.

Once the piping is completed, you can begin dismantling the old ceiling. After removing the covering, you can place jacks around the perimeter of the roof and lift it, as in the case of lifting the entire structure - no more than 50 mm at a time. It is extremely important, after increasing the height, to place a reinforcing belt or additional crowns of wooden beams, treated with fire retardant, impregnated and well dried, into the opening.

As soon as the work to increase the height is completed, the additional space is insulated, insulated from water and wind, and you can begin finishing ceiling plane.

Method of visually lifting the ceiling

An old wooden house cannot be raised throughout the entire structure, and work on the roof will be difficult. It remains to consider options on how to make higher ceilings using decorative materials.

There are several different ways:

1. Put away ceiling plinth or paint it to match the wall panels. This removes the dividing line between the planes and visually increases the height. You can also paint part of the ceiling the same color as the wall panels - this will move the boundary between the planes and visually make the walls taller.
2. Make it glossy suspended ceiling. The reflective ability of PVC film visually raises the plane. However, you need to choose a light tone of the material; if you make darkened planes, then the room, on the contrary, will look lower, smaller.
3. Reconsider the interior. By selecting objects “spread” on the floor, you can achieve a good visual effect of expanding and enlarging the space. Low poufs, sofas, pillows, armchairs, tables will come in handy.

When considering how to visually increase the ceiling in a wooden house, you should take note of the rule of vertical stripes - wide stripes on wallpaper or lining for wall decoration can lead to the opposite effect - the room will look like a box, but too narrow slats will look like a “picket fence”. Optimal width vertical stripes for wall decoration - 40-60 mm.

If you cover the walls with wallpaper with vertical stripes, then so that some of the stripes extend to the ceiling. Very a good option– marking the border of the wallpaper on the ceiling with thin light fillets. The result is a ceiling, the perimeter of which is outlined by the decor with a slight indentation from the wall panels. Inside this perimeter, you can lighten the plane with paints in white, creamy shades, or stretch a PVC sheet to visually increase the height even more.

Rules for visual expansion of space

• the color scheme is only light;
• the coating should match the furniture upholstery;
• as few colorful spots as possible in the upholstery and accessories - they visually reduce the space;
• remove from the interior small items who don't leave free space and thus can create the effect of overflowing the room;
• think over quality lighting– the more light, the more spacious the room looks;
• replace small-sized square furniture with tall, elongated interior items.

How fewer items indoors, the more spacious it seems. It is also recommended to use mirrors and furniture with reflective finishes as accessories. Large paintings on the walls should be replaced with smaller images and collages should be placed taking into account the direction of the light beam - darker paintings should be hung closer to the light, and the corners should be filled with light images.

To increase the area of ​​your country house, it is not necessary to create an extension or redo the entire roof to create a more spacious attic. It is enough to raise the roof and rebuild the second floor. Thanks to such work, you can double usable space Houses. Before raising the roof of a house, it is worth learning about how this process occurs. To prevent the structure from beginning to deform under the weight of added materials, the load acting on the foundation should be calculated in advance.

Why do you need to raise the roof?

Raising the roof can occur for the following reasons:

1. The need to increase the ceiling height. To increase the ceiling, in most cases it is enough to raise the roof by only 1 meter. Before increasing the height of the ceiling, you need to prepare everything necessary materials in order to complete the walls after raising the roof.
2. The desire to complete the 2nd floor. In this case, the elevation occurs to the height of one floor, and the walls are completed with brick. When choosing this option, it is important to properly strengthen the foundation of the house, calculating the increase in load on the structure. If this is not done, the structure may begin to deform after construction. At best, the house will shrink.

Before raising the structure, you need to carefully prepare a drawing so that the structure is reliable and does not deform after removing the temporary supports. Its lifting must be carried out very carefully, since careless actions can lead to the destruction of the structure.

Increased ceiling one-story house helps create more comfortable indoor conditions.

Preparatory work

To raise the roof with your own hands, you need to create a metal frame consisting of channels and fixed to a support beam. To create such a design, you must have the following elements:

• channels;
• cable stays, which are necessary to securely hold the structure;
• supports that act as guides.

It is worth remembering that cable stays must be made of rods, the diameter of which must be at least 1.4 cm. To create a metal frame, 14U channels with holes are used to secure them to the base of the roof.

It is worth remembering that such screws, with the help of which the channels are secured, must have a length of the screwed part of at least 10 cm. The elements of the metal frame, which will be located longitudinally, are fixed directly to the beam. Before purchasing channels, it is necessary to take into account that the weight of the entire metal structure should not be more than two tons.

If the roof is raised to increase the ceiling height, the foundation need not be strengthened. But in a situation where it is raised to create a second floor, it is necessary to calculate the load acting on the base and, if necessary, make it stronger.

Installation of support devices

Supports are necessary to ensure that the roof is raised without moving it to the sides. They can also be installed as temporary supports for the roof of a wooden house before a permanent foundation is installed underneath.

The complete set of supports includes 4 legs. Moreover, each element must withstand a weight of about 1.5 tons. They are created from channels whose height is 3 meters. The connection is made using jumpers about half a meter long. In this case, the jumpers are cut from 8U grade channels.

Created this way metal constructions capable of supporting a structure weighing up to 40 tons. To ensure that the floor covering does not begin to collapse during the raising of the roof, supports should be installed only in those places where the structure can withstand heavy loads. If this rule is not followed, the floor under the supports will begin to collapse, resulting in the need for repairs to the roof and the rest of the structure.

How does the roof rise?

To raise the roof, you must use the following tools and materials:

• jack;
• metal fittings;
• reinforced concrete pillars
• hammer;
• screws;
• channel;
• metal strip.

Before you raise the roof of a house with your own hands, you need to check the correctness of the calculations made. After completion of the preparatory work, the jacks are installed. You can use 2 jacks for lifting, but this increases the risk of losing stability while lifting the structure at the same time. It is worth remembering that the installed supports must withstand a load 2 times greater than that which will act on them according to calculations. The distance between the crossbars of the supports being created should be no more than 25 cm.

Raising the roof occurs by alternately raising each corner by about 5 cm. You should not raise it any higher, as this can lead to deformation of the structure. First, the lifting occurs to a height of 25 cm. Only after this can the next cross members be welded to the supports.

Once the lifting height is 1.85 m, you can begin to create brickwork for creating outer wall. Usually the rise to such a height occurs within three days. It is worth remembering that to create a complete attic room it is necessary to raise the roof to a height of at least 2.8 meters. Such work usually takes about 12 days. After raising the structure to such a height, such work is completed and the walls are created.

Arrangement of the under-roof space

Most often, after carrying out the described work, brick walls are created. After creating the walls, it is important to insulate the under-roof space. In addition, it is necessary to protect the attic from moisture penetration.

Most often, mineral wool is used for insulation. She has excellent thermal insulation characteristics. In order for the insulation to retain its properties, care must be taken to protect it from moisture from the street and indoors. Creating an attic under the roof involves building a structure that consists of several layers:

• interior decoration;
• vapor barrier membrane;
• insulation;
• waterproofing;
• roofing covering.

In order to properly insulate the under-roof space, it is necessary to take care of the insulation of the walls. It is worth remembering about creating roof ventilation. This will protect the structure from the appearance of fungus and mold. During insulation, it is important to create a gap between the roofing material and the insulation. Thickness air gap should be no more than 5 and no less than 2.5 cm.

Window installation

After raising the roof and creating the walls, windows are installed, which can be vertical or inclined. Creation vertical windows on the roof implies the construction of a separate rafter system for each opening. This is why slanted windows are most often created.

To create the most favorable microclimate indoors, it is worth installing windows so that they occupy at least 12 percent of the wall surface. It should be borne in mind that raising the roof will require a significant investment. It is also important to remember the complexity of the work being carried out and pay attention to each stage. If you follow all the rules, you can lift the roof yourself and secure it securely without the involvement of professionals.

Some home owners decide not to raise the roof, but to dismantle it. But this option is not suitable for everyone, since disassembling some structures is quite difficult.

The roof protects the house, as well as its internal contents, from all kinds of precipitation. For its construction, various technologies are used, each of which involves the use various designs and materials.

Before you begin raising the roof, you need to make sure that the roof base is firmly secured.

Very often, if you want to increase the area of ​​your home, you think about creating a living space, an attic, or an attic. If the attic space was not previously designed for use as a living room, it can be converted. In this case, it is not necessary to dismantle the roof; it is enough to know how to raise the roof. In the received attic room It will be possible to arrange a bedroom or office in the future.

Preparatory work

Before you begin raising the roof, you need to strengthen the base of the roof. For this, it is best to use a metal frame made from channel 14U. In this case, cable stays are made from reinforcing bars, the diameter of which is 14 mm.

The support legs are used as guide rails, they provide easier lifting without moving to the sides.

Fastening the channel to bottom beam carried out using screws 10 cm long and 10 mm in diameter. Longitudinal channels located in the center are attached to the beam directly, while metal ears are welded to the perimeter channels. It is through them that the channel will be attached to the beam using screws in the future. In total, you will need about 70 screws, if they have a diameter of at least 8 mm. When lifting, you can use half as many transverse channels, since their strength is enough to hold the roof. In addition, in the future they can be used to produce floors between the first floor and the attic. The estimated weight of the channels, which are used to strengthen the base of the roof of the house, is 2.3 tons.

Installation of support legs

The support legs are used as guide rails, designed to allow easier lifting without moving laterally.

Placement of support legs on the floor plan.

The estimated weight of the support legs is 1.4 tons. It is necessary to use four legs, each of which weighs 350 kg. In this case, each leg consists of four vertical channels of grade 12u. Their height is 2.9 m. They are connected using horizontal channels of grade 8u. Their length is 0.385 and 0.35 meters. In this case, the distance of the supporting leg between the horizontal channels should be 0.25 meters. Spacers of grade 10u are used as inclined channels. Their length is 1.5 meters, and their inclination is no more than 45 degrees. When using materials with the listed dimensions, the supporting legs will obtain the necessary strength. They are designed for wind load, equal to 73 m/sec. Such legs can withstand a weight of more than 100 tons from top to bottom. But, as a rule, when constructing them, the calculation is made according to the horizontal and wind load. In order not to break the ceiling of the first floor, the support legs should be placed in those places where the main structure passes interior wall houses and a partition, the thickness of which is equal to half a standard brick.

Roof lifting process

In order to carry out the process of raising the roof, it is necessary to have the following tools and materials:

• hydraulic jack;
• metal fittings;
• reinforced concrete pillars;
• metal strip;
• hammer;
• nail puller;
• screws;
• channel.

After completing the preparatory work, you can begin to raise the roof. For this, it is best to use a hydraulic jack, which weighs 12 tons. You can use two jacks, but in this case there is a high probability of losing stability when lifting two support points at the same time.

During this process it is necessary to use a substrate, which is best used as square pipes, made from channel scraps.

The supports must withstand a vertical load of 60 times and a wind load of twice the actual load.

The distance between the crossbars, which are located on the supports, must be at least 25 cm. A total of 12 transverse rings are used on each support. To achieve the required height between the crossbars, free space laid with substrates made of square supports or channels.

Raising the roof of the house is done by lifting each corner one by one by no more than 5 cm. In this way, you need to move in a circle until you reach 25 cm. Only after reaching the required height are the subsequent crossbars welded to the supports. When a height of 1 m 85 cm is reached, which takes no more than three days, you can begin parallel bricklaying to build the outer wall. Before this, it is necessary to fill in the reinforcing belt. As the roof rises, the jack's fulcrum will also rise. At the same time, it rests on the same foundation as the roof itself. To install a full-fledged attic space, it is necessary to raise the roof to a height of at least 2.87 m. This usually takes about 12 days. At this point, the stage of raising the roof ends, all that remains is to finish the wall with bricks.

Arrangement of under-roof space

After the roof is raised and the walls are built, you can also begin installing windows in the resulting room.

After the brick walls are completely laid out, it is necessary to begin insulating the under-roof space, ensuring protection against water penetration from the outside. Attic space needs more high-quality insulation. This is due to the fact that it has more large area contact with the environment.

Most often, mineral wool is used for these purposes, which is fibrous material, which has excellent insulating qualities, which makes it possible to create a denser layer. In order to this insulation remained dry throughout, it must be protected from direct hit water not only from the inside of the house, but also from the street. This is achieved through the use of special membrane films. The highest demands are placed on the quality of insulation of the under-roof space, which is used as a living room. This is especially true in cases where new room planned to be used all year round. The attic structure of the roof of the house consists of a multi-layer structure, which includes:

1. Interior decoration.
2. Vapor barrier layer.
3. Layer mineral wool or other insulation.
4. Waterproofing layer.
5. Roofing covering.

Usually, proper insulation attic space depends not only on the correct insulation, but also on the insulation of the external walls of the house and the floor. Also, we must not forget about the device ventilation system mansard roof. It will save the room from the appearance of dampness, mildew and mold. In this case, it is important to observe one condition, which is to ensure a large gap, which should be located between the insulating layer and the roof. In this case, the thickness of the air gap should be no more than 5 cm, but not less than 2.5 cm, depending on the type roofing material used to cover the roof.

The next stage is window installation

After the roof is raised and the walls are built, you can think about installing a window in the resulting room. There are two types of window installation:

• vertical;
• inclined.

The first option is the most complex, as it is accompanied by the installation of a separate rafter system for each window. Therefore, the second option is more often used. In addition, installation sloping windows does not prevent light from entering the room, which will solve the lighting problem. To ensure the most comfortable microclimate in the attic of the roof, it is required that windows occupy at least 12% of the entire surface of the walls. Raising the roof of a house requires serious material costs and professional approach. Therefore, it is very important to study as thoroughly as possible theoretical issues roof raising technologies. It would not be a bad idea to get advice from specialists while drawing up a project for a new building.

The old buildings have low ceilings. If you are the owner of such a house and want to increase the height of the ceilings, you do not have to dismantle the roof - you can raise it yourself. Our master class will help you with this.

Tools and materials for work

We will need:

• at least three jacks (preferably oil) with a lifting capacity of 5 tons;
• the corresponding amount of compressive strength wooden beams, metal channels(optimally) or pipes of suitable length;
• the corresponding number of rigid floor pads, which will redistribute the point load from the jack to the area load (thick boards, pieces of channel, etc.);
• cushioning material that will be placed under beams and jacks during the process of raising the roof (cutting boards, bricks, etc.): their quantity must be calculated so that it is enough for all beams on both sides to the full height of the roof;
• the material from which the walls will be raised (brick, shell rock, adobe, etc.), as well as mortars(sand, clay, cement, etc.): their quantity must be calculated depending on the length of the walls and the height to which the roof will rise.

So, let's begin

As part of the first stage of work, it is necessary to adjust the jacks to ceiling beams. The beams may be initially visible or sewn up from below, in which case you need to calculate their position (it corresponds to the location power frame roofs) and mark on the inside of the walls so that you know in which places to install the jacks. There will be a lot of dust during the process, so the furniture should be covered or removed from the room.

We start from the corner. We install the jack on the distribution gasket strictly under the beam and slightly wedge the channel between the beam and the jack, extending the jack rod. The jack should still have a travel reserve of 5-10 centimeters for the upcoming lift. Next, you need to make sure that the channel is located vertically in all planes. If necessary, you can loosen the jack, adjust the channel and lightly wedge it again.

If you do not plan to sew up the beams in the future, place cushioning material between the channel and the beam to prevent damage to the beam. Now you can try to carefully lift the beam. Monitor the relative position of the jack and the channel. If you see that a break is occurring at the point of their contact, loosen the jack and move it slightly towards inner side fracture Do not ignore this break - under increasing load during lifting, the channel can jump out of the connection, which can lead to injury. If there is no break, extend the jack rod no more than 5 centimeters and secure this position by placing a spacer between the beam and the wall. Do not loosen the jack.

Repeat the same operation with all jacks on one side of the house.

The more jacks you have, the better - you'll save time on reinstalling them.

When all the jacks are raised by 5 centimeters, you can start again from the first to the penultimate one, raising them another 5 centimeters and increasing the thickness of the spacers between the beam and the wall. It’s not worth raising it any higher yet: if there is a large distortion, the roof may “move out” during the process of raising the opposite side.

Next, we weaken and rearrange all the jacks under the next beams, except for the last one, raised by 5 centimeters. We repeat the whole process from the beginning. When all the beams on one side are raised by 10 centimeters and spacers are placed under them, we move to the other side of the house and raise them in the same way. From this side you can raise it by 15-20 centimeters, and we also do all further lifts to the required height. In this way, the slight displacement that occurs when the roof is skewing will be compensated.

Additional complications

The first and last beams are usually hidden by the wall, so they will need to be lifted manually using an enlarged arm. It will be much easier to do this when the second and penultimate beams of the house are already raised by 5 centimeters.

The distribution gasket under the jack must be strong enough to avoid damage to the floor covering.

Fix the roof at the required height

When the beam is raised to the required height, a support must be erected under it. Even if you use clay when laying openings, it is better to use mortar to build supports, since it dries faster and acquires the necessary strength. The support will have to be erected at the moment when the beam rests on the raised jack; after the jack is loosened, the load will immediately fall on the support - the freshly laid clay at this moment will most likely cause subsidence.

Particularly difficult will be the sections of the wall where the beams lie above window openings. You will probably want to increase the height of the windows, which will require raising the lintels and filling in the voids while the beams are resting on the jacks.

Try to organize the entire process efficiently so that it takes as little time as possible. While the roof is standing on temporary supports, it is a rather shaky structure - rush strong wind can ruin the result of your work.

After internal masonry laid, and the roof stands firmly, you can raise the facing masonry.

Since lifting and repairing a roof is a rather labor-intensive task, you should immediately think about updating the roof so that this issue no longer bothers you.