Installation of a multi-gable roof truss system. Multi-gable roof

Among various designs Multi-gable roofing is considered the most complex and attractive. The peculiarity of its design lies in the large number of complex elements. These include gables, gables, valleys and ribs. In this article we will tell you how to build a multi-gable roof by hand, show drawings and diagrams, photos and video materials.

Most often, a multi-gable roof is made in several cases:

• initially;
• in the process of adding premises;
• for installation of side lighting in the attic;
• in buildings with complex layout and many rooms.

Peculiarities

A simple version of a gable roof is a gable roof without gables. In this design, the upper triangular section of the wall is called a gable. There is no multi-gable roof during construction simple steps, all actions, starting with calculations, require knowledge and skills. The roof structure allows you to place living space underneath it. Despite the difficulties, home owners take on self-installation allowing you to save a significant amount of money. A multi-gable roof will require enormous physical and financial costs, but will delight the creators with the architectural beauty of the building.

Design advantages:

• thanks to the balanced rafter system, the roof can easily withstand high loads;
• the roof has an original and attractive appearance;
• the design is reliable and durable;
• appears free space for an additional room or attic;
• Snow cover does not linger on steep slopes.

Flaws:

• complex design requiring competent calculations and installation;
• a large amount of waste generated when cutting roofing material, especially metal tiles;
• high load on the valley caused by snow;
• the need for high-quality waterproofing of internal joints.

Designations of main structural elements

The endova is the place of internal connection of the slopes; they are one of the key nodes. They have to withstand a significant load from the accumulation of snow, so support from below is provided from a system of supports and struts. Waterproofing the unit is of great importance; all water flowing down the roof passes through the valleys. Any design error will result in a leak.

Ribs- represent outside corner connected slopes. One of the most difficult places in the design of a multi-gable roof is the intersection of the ridge beam, to which the valley adjoins. A ridge is one of the ribs of the roof.

Tong- a section of the wall limited by slopes; it is shaped like a triangle and is not separated from the wall by a cornice.

Mauerlat- load-bearing base of the entire roof, distributing the load on the walls and foundation.

Rafters– layered, hanging and diagonal.

Lathing– a frame made of timber, necessary for fastening the roofing material and insulation.

Installation of the rafter frame

The basis of a multi-gable roof is the Mauerlat. The base element is subject to high load, so a beam with a cross section of 150x150 mm is used for it. It is attached to the walls of the building with anchors laid during the construction of the house. The rafters rest on the mauerlat. Rafters can be layered or hanging. Their choice is determined by design features.

In the case of hip and half-hip roofs, diagonal rafter legs are installed at the junction of the slopes. These elements bear the main load, so they require reinforcement by specialists. Such rafters can be made double, connected from two boards 150x50 mm. Rafter legs, reinforced with struts and crossbars, form trusses. To ensure the attractive appearance of a multi-gable roof and the necessary structural rigidity, all truss parts are made using templates. Beginning builders can assemble trusses not by cutting them, but by fastening them with overhead metal elements.

The rafters are attached to the mauerlat by cutting, installing brackets or corners. At the top, the rafters are connected by a ridge beam. When installing rafter system in a large house they are used as puffs ceiling beams. The structure can be strengthened by a beam - a horizontal beam laid exactly in the middle between two walls and connected to the mauerlat. Additional beds can be placed under the slanted legs and valley.

After installing the rafters, the sheathing is placed on them; at the joints of the slopes, where the valleys are located, it is continuous. The waterproofing scheme for the internal corner provides for laying an additional layer to ensure the reliability of the structure. Waterproofing is laid on the boards and the bottom strip is mounted. If the valley consists of several parts, they are attached from below, with the upper part covering the edge of the lower element. The junction of the bottom strip and the roof covering is insulated. To give the structure a finished look, it is installed top bar valleys.

Lathing, insulation and roof installation

The last element of the rafter system is the sheathing. It is pressed onto the rafters in increments depending on the choice of roofing covering. For soft roof it is made continuous, for metal tiles - in increments of 25–30 cm. A cloth for waterproofing is laid horizontally on the sheathing, the overlap of the strips is 10 cm. If insulation is provided, then the material is laid under the waterproofing. When insulating a structure, we must not forget about ventilation holes. For a multi-gable roof, a lightweight covering is recommended so as not to create additional load on the rafters, for example, when.

There are many options for how to make a multi-gable roof; they differ in design complexity and appearance. This type of roofing looks best on square and rectangular houses.

Video

Watch the video that details what you need to know to properly design a roof truss system:

Photo

Scheme

The most bizarre roofing structures today can be seen not only on buildings historical museums, manors or medieval castles. They are increasingly found in private houses and cottages. Development companies are ready to offer their clients services for the construction of complex but beautiful structures. Despite the high cost, the demand for them is only growing every year, because their beauty and presentability are indicators of the high social status of the owner.

What it is?

The roof of a house is a multifunctional element. It simultaneously performs technical, operational and aesthetic tasks. The success of its use depends on the high-quality elaboration of all elements, and the unique appearance can make the building especially attractive.

A traditional gable roof with two gables is called a two-gable roof. If the project provides for the presence of several elements consisting of paired pediments or gables, then it is called multi-gable. Such a structure is considered the most complex due to the presence of a large number of different architectural elements. It is they who make the roof the most attractive and original, capable of giving even the most ordinary building the image of a medieval castle.

Multi-gable roofs for frame house You can create it yourself if you follow all the recommendations. Such designs have both their pros and cons, so you need to carefully weigh your choice. You should have a work diagram and a design drawing, as well as examples of finished roofs.

In what cases is it preferable to create roof coverings of this type?

The need to build complex object may occur in a number of cases:

• when the roof must be made in the same architectural style as the structure being built;
• if additional extensions were made to the main building;
• in the case when the structure is simple rectangular or square shape complemented by several pediments;
• if the project involves the installation of recessed balconies or windows, including dormer windows, on the roof;
• if necessary, create side lighting in the attic;
• in large multi-room buildings with a complex multi-level layout.

Advantages and disadvantages

This type of roofing enhances the beauty architectural style in which the building was built.

A number of advantages distinguish it from other types of roofing structures:

• it has a more original and attractive appearance;
• is distinguished by reliability and durability;
• after its construction it becomes possible to equip extra room or a storage room in the space of the resulting attic;
• the complexity of the design involves the formation of a large number of unique stiffening ribs at the intersection of numerous planes - they help to significantly strengthen the overlap;
• a balanced rafter system allows it to withstand increased loads, especially in winter;
• Snow does not stay on steep slopes.

Its disadvantages include the following:

• the high cost of constructing such a facility due to the large volume of materials used and the fairly high price for them;
• a significant amount of waste generated when cutting coatings (especially for metal tiles).
• a complex device requires competent calculations and a professional approach to installation;
• high-quality waterproofing is necessary, especially at internal joints;
• increased load on the valley, especially in winter due to the abundance of precipitation.

Structural features

It is a pitched structure with surfaces sloping towards the outer walls. Thanks to this, the natural drainage of melt and rainwater is ensured.

Such a roof consists of many structural elements. Let's look at them.

Scat

A section of the roof located in one plane. How more complex design, the more stingrays she has.

Gable or pediment

It is the upper section of the wall, limited by slopes. A slight difference between gables and pediments is the absence of a cornice in their lower part.

Valley or valley

Structural elements in the form of internal corners formed by joints. At the ends, the valleys are limited by pediments or gables. During operation, this part of the structure takes on greatest number atmospheric precipitation. This is where rainwater and snow accumulate.

During construction work it is this that needs to be given special attention in order to avoid problems associated with leaks in the future.

Rib or ridge

A horizontal line connecting two planes of slopes.

Eaves overhang

An overhanging section of the roof with a width of 30 cm to 50 cm, the main function of which is to protect against precipitation and ensure effective drainage of water after rain or melting snow.

Gutter

Structural element, draining water from the roof surface to drainpipes horizontal arrangement.

Adjacency

The area where the slopes connect to the vertical surface of the building.

The angle of inclination of the roof is determined during its design process, depending on several factors:

• features of climatic conditions;
• Supplies;
• architectural features of the building.

In special cases it can be up to 90 degrees.

The simplest version of a multi-gable roof consists of two gable structures connected at right angles. If you look at such a structure from above, it will have the outline of a cross. Most often, when developing a project, designers propose using a similar gable form on several separate parts of the building at once and then combining them into a single structure. This approach allows you to create original structures that give the entire structure an attractive appearance.

Construction and installation of the rafter frame

The rafter system of a multi-gable roof has a rather complex structure. It often contains a combination of inclined and hanging supports. Therefore, you should be extremely careful about the accuracy of the calculations of their cross-section, as well as the installation of the necessary stiffening elements.

Its main elements include:

• Mauerlat;
• rafters;
• beams.

Mauerlat performs the most important task of distributing the load from the roof to the walls of the building. For its production, timber with a length of 1000mm to 1500mm with a section of 100x150mm or 150x150mm is used. The Mauerlat must be firmly attached to a special reinforced belt, which is erected during the construction of the wall box. This is done so that the forces from the rafters cannot move the walls apart. Only after the Mauerlat is securely fastened, the installation of the rafter legs begins.

Depending on the availability of additional supports, inclined or hanging rafters are installed. For their manufacture, exactly the same timber is used as for the Mauerlat. The ridge is also made from it, serving as a connecting element for the upper parts of the rafters.

In some cases, it becomes necessary to install additional intermediate girders in the form of horizontal beams between load-bearing structure and lathing. They reduce the load from the covering, distributing it evenly in the rafter system, and also add rigidity to the sheathing.

Brief step-by-step instructions for construction

Installation of a multi-gable structure must be carried out in strict accordance with the design documentation.

All work is carried out in stages.

• Climatic data that is typical for the region of the facility under construction is collected. This information is taken into account when carrying out technical calculations and developing the project.
• Object design and calculations. Careful preliminary calculation of all components It is better to entrust roofing to experienced specialists. In addition, it is necessary to determine in advance the types and volumes of materials that will be used in construction.
• A Mauerlat is laid around the perimeter of the building.
• Vertical support posts are installed and horizontal beams are mounted - purlins that form the ridge.

• Installation of main and additional supports forming the transitions of the planes.
• The posts and rafters are reinforced with rafter legs or struts. They help distribute the load evenly and also prevent structures from sagging.
• The elements are connected using metal fasteners - plates, brackets, threaded rods or anchors. To strengthen the connection of the boards, wooden bosses are used.
• On top (along the rafters) lathing in the form of horizontal strips is laid.

The choice of lathing depends on the type of roofing. If you intend to use a soft roof, then continuous flooring is preferable. When using rigid materials or products made of profiled metal, the lathing is made sparse.

Waterproofing and protecting attics from heat loss

Roll waterproofing is laid in overlapping strips and perpendicular to the direction of the roof slope. An overlap of at least 15 cm in width must be made. The joints of the strips are glued together using a special adhesive tape or construction tape. Particular attention is paid to valleys, since they receive the largest amount of rain or melt water, and therefore are the most vulnerable place.

If the installation of the waterproofing layer was carried out in violation of the technology or low-quality materials were used, this can lead to the accumulation of moisture in the under-roof area, as a result of which the thermal insulation is significantly deteriorated, and rotting is possible wooden parts shelter

It should be noted that traditional waterproofing products in the form of roofing felt or glassine can no longer provide long service life and strength. They do not fully comply with modern standards of environmental cleanliness and safety. Therefore, membrane materials are becoming increasingly widespread. In addition to their main function, they are able to significantly reduce heat loss by increasing the thickness of the insulation to the full height of the rafters.

The construction of a multi-gable roof involves the formation of an attic space, spacious enough to equip residential or utility rooms in it. Therefore, the roof must be well insulated and insulated from getting into it. excess moisture. Insulation based on mineral wool is ideal for this. They prevent the appearance of “cold zones” where condensation can form. Among the features, it is worth noting the particularly soft structure, which allows the use of this material in hard-to-reach areas.

In the case when the “box” of the walls of the house has a complex configuration with various extensions, or the project involves arrangement on the roof dormer windows and remote or recessed balconies, as a rule, a multi-gable roof rafter system is chosen, which has a very complex design.

Such roofs differ from standard ones in the presence of several gables, of which there may be three or more. In addition, the multi-gable rafter system includes several sections in its design, thanks to which the house will look more presentable, especially in cases where a finish is selected for the facade of the building that matches the architectural style decision.

Basic principles of multi-gable roof design

The multi-gable rafter system has a structure that consists of individual slopes interconnected. Top part the walls of the building's departments, bounded on both sides by slopes, are called gables (or pediments, if this section is separated from the wall of the house). Therefore, a roof that has not two pediments (gables), but several, is called multi-gable.

Depending on the design features and the number of such sections of the rafter system, roofs can be three-gable, four-gable and even more complex.

This diagram shows the most commonly used design options for these complex structures. Moreover, as you can see, various sections of one roof can be either ordinary gable or.

Installation of a multi-gable roof is quite complicated and requires considerable costs for the purchase of materials, since more of them will always be required than for conventional system. And the point is not only that such roofs have a larger total area - the complex configuration leads to the fact that when cutting the roofing material, a large number of scraps remain.

The complexity of constructing the structure leads to the high cost of the work, so most often such options are chosen for arranging respectable mansions, somewhat reminiscent of ancient castles.

However, in various, sometimes somewhat simplified, versions, multi-gable roofs have become widely used on quite “modest” country houses.

Architects, designers, and builders endow this type of roof with the following positive characteristics:

• High load-bearing capacity and structural strength.
• Due to the fact that the multi-gable rafter system is designed taking into account heavy loads, it is highly resistant to external influences, such as sudden gusts of wind or the pressure of large masses of snow.
• As a rule, the slopes of these types of roofs have a large slope, which makes them easy to maintain, since they do not retain debris, snow and rain flows. Thanks to these qualities, roof repairs are carried out much less frequently.
• Multi-gable roofs have a high ridge, so in the space that is formed under them it is quite possible to arrange living rooms, which is not always possible to do with traditional ones.

Let us turn to the basic principles of constructing multi-gable roofs.

As you know, rafter systems can be layered or hanging, and in a multi-gable structure both options can be used at once. For example, a layered system is installed above the main building, if it has a large area and has capital partitions inside, and a hanging system is installed above small compartments.

If the building is square or rectangular and it is planned to install a multi-gable roof on it, then it is recommended to provide additional support for it in the form of a load-bearing partition wall inside the house. This is due to the heavy weight of this type of roof.

This figure shows the main elements that are characteristic of this roofing structure. Please note that both regular gable and hip schemes can be used at the same time.

1 – Roof slopes - there are always more of them in a multi-gable roof than in a traditional one and they can differ in their structure, area, and angle of steepness.

2 – Ridge – this element will also be presented “in several copies”, since it is impossible to do without it when constructing each of the roof sections.

3 – Ribs are the outward-protruding corners of the intersection of the roofing planes. As a rule, they are usually found on mansard or hip roofs.

4 – Pediment or gable – the number of these elements may vary, depending on the complexity of the roof

5 – The front board frames each of the roofing gables, covering the end edges of the roofing covering.

6 – The valley is the internal corner of the roof, formed along the line of junction of different sections of the structure. This element will also serve as a kind of channel for water drainage.

7 – The eaves overhang runs along the lower edge of the roof. It is covered at the ends with a wind board, and along the edge there is a drip line to drain moisture from under the roofing into the gutter.

8 – Apron installed around the chimney and ventilation pipes, to prevent water from penetrating under the roof in passage areas.

Perhaps the simplest multi-gable rafter structure with a remote viewing window is shown in the diagram. However, it should be noted that more complex options with the presence of two or more built-in departments, consist of the same parts, only more of them will be required.

Before you decide to build such a roof, think carefully - are you ready to fork out money in the name of beauty? This roof does not provide any particular benefit, but it also has no serious disadvantages.

For those who are planning to build a house and want to turn it into a real work of art, a multi-gable roof will allow you to realize the most original fantasies in this matter. Multi-gable roofs of houses quickly won the hearts of those who love something sophisticated and have enough finance, because this type of roof is not a cheap pleasure.

Multi-gable roof - advantages and disadvantages

You can often hear that this type of roof is used exclusively in the construction of square houses, but this is a myth. Sometimes all sorts of rooms are added to a house, and it takes on an awkward shape. In this case, a multi-gable roof completely transforms the appearance of the house - it looks very impressive!

As for reliability, the multi-gable roof structure is very strong, but only if the installation of the rafter system is carried out correctly. If you are not a specialist, then it is better to turn to experienced builders.

There is a lot of space under a multi-gable roof; you can make a spacious attic or equip a luxurious attic; this is often why such a roof is built to provide good lighting.

Important: when erecting a multi-gable roof, you cannot equip the entire room as residential - you need to select a part in which there will be a ventilated room, separate from the heated one.

The disadvantages include:

Expensive. Wasteful consumption of wood, you need to constantly cut, trim, and as a result, some of the material is simply thrown away. The rafter system of a multi-gable roof is difficult to install; accordingly, craftsmen charge a substantial amount for the work.

High risk of leaks. A special feature of such a roof is its many slopes, and the places where they intersect are called endoves - the most vulnerable places of the roof. Large flows of water pass through there, and if you do not pay attention to the high-quality insulation of these joints, then at the first opportunity they will leak.

Elements of a multi-gable roof

The rafter system of a multi-gable roof is the same as that of other roofs - a mauerlat, rafter legs, a ridge, grooves for water drainage, sheathing and a larger number of inclined ribs with additional racks. All this is fastened together with metal fasteners.

The difference from a standard roof is the presence of ends, grooves, many ribs and slopes.

It was said above about endovs - these are depressions that are formed at the junction of slopes, they are also grooves. The ribs are also the joints of two slopes, but they go outward rather than inward. It is in these elements that all the “sweetness” lies, because it is they that form the gables and the numerous hips (slopes), giving the roof such a special look.

Types of multi-gable roofs

IN architectural plan, the hip roof can be given the most elaborate look. This is where you can show your imagination and surprise with the unusual shape.

Multi-gable roofs are the most popular type. Despite the fact that this design requires careful fastening with proper load distribution. Pointed corners give the structure rigor and laconic completeness. Any Vacation home with such a roof it looks rich and original.

Half-hip gable roofing is also a fairly common type. Installation is a little easier. A characteristic feature of this type is “smooth” corners. The roof looks smooth and elegant, somewhat reminiscent of a tent. It is only at first glance that it seems more modest than the previous type, but if you approach its construction creatively, it can turn out unusually beautiful.

Rafter system

To put it simply, the rafter system of a multi-gable roof is two gable roofs, which are connected to each other at an angle of 90 degrees.

Because of heavy weight and the complexity of the structure, in the design of such a roof they use both types of rafter systems - hanging and layered, and also create

multi-gable roof diagram

A few words about how to build a multi-gable roof with your own hands:

Rafters 150x50 mm are attached to a Mauerlat with a cross-section of 150x150 mm and a length of 1.5 m.

The rafters are fastened at the top with a ridge of the required section, then the structure is strengthened by installing intermediate purlins.

Since in this design there are places where two roofs are connected, additional rafters need to be made there in order to attach the eaves to them.

multi-gable roof - drawing

When all the racks and fastenings are in place, you need to lay a layer of waterproofing film.

The lathing is made from boards measuring 32x100 mm. You can use 50x50 bars.

Important: before installing the rafter system, you need to correctly calculate the slope of the slopes and the load on the rafters so that the structure is strong. It is advisable to have a specialist do this. In addition, the climatic location is important - if a lot of precipitation is expected, then the slope of the hips should be maximum so that water and snow do not linger. You need to take care of the endovs - remove snow and debris from them.

Be that as it may, experts do not recommend starting to build a multi-gable roof yourself. If only because the material will cost you a pretty penny and it will be a shame if it doesn’t work out. Of course, the craftsmen will also take a lot, but in the end you will be pleased with the beauty and reliability of the architectural masterpiece.

Video

The construction term “multi-gable roof” defines a house roof structure that has several gables or gables more than one. A rafter multi-gable roof is developed as a complex pitched rafter system. Thus, if there are several gables or gables near the wall of a building, the roof of such a structure can be called multi-gable. Original roofing systems can be found not only on historical sites, in ancient estates or castles. Construction fashion has shifted the demand for multi-gable roofs to present time, and now most private cottages are built with such roofs. Companies offer customers a wide variety of designs for complex rafter systems, which are the basis of gable roofs, even if the construction is expensive.

Functional load of a multi-gable roof

Such a roof performs many tasks - from technical and operational to aesthetic and design. Therefore, the project must be worked out in all directions; all elements and parts of a do-it-yourself gable roof must have high precision and reliability. It is also advisable to make design changes to the project that make the roof of the house different from other structures.

Even a standard gable roof with two gables can be classified as a multi-gable structure, but the roof will be called a two-gable roof. When developing a roofing system with paired gables or gables, the roof acquires a complex multi-gable orientation.

The complex rafter system of a multi-gable roof is quite feasible on our own subject to all building regulations and recommendations. Before the final choice of the project scheme, you should at least superficially familiarize yourself with different options arrangement of multi-gable roofs, photos of which are presented in the pictures below:

A complex multi-gable roof has the right to life in the following non-standard situations:

1. If the style of the building requires compliance with the monolithic architectural composition;
2. If one or more buildings are attached to the main building;
3. If rectangular or square house it was decided to decorate with additional pediments;
4. When constructing recessed windows, loggias, balconies on the roof;
5. If the requirements for the attic do not provide for increased natural daylight;
6. Also, a multi-gable roof is erected in houses with big amount residential and technical premises. These can be low-rise residential buildings or a single-story house with a large area. large area.

Pros and cons of the design

The architecture of the building only benefits from the construction of a multi-gable rafter system.

The advantages of such a structure are enough to make a choice in its favor:

1. The unusualness, originality, aesthetics and harmony of the building with a multi-gable roof are immediately visible;
2. The design is reliable and durable precisely due to its complexity - multi-directional fastenings of rafters and gables due to numerous stiffening ribs neutralize all types of loads - lateral, impulse, shock, weight and wind, and also negates the influence of atmospheric phenomena, such as heavy snow or hail Snow drifts will not be supported on steep roof slopes, so it is necessary to design a reliable storm drainage with high throughput;
3. The presence of several gables is an excellent opportunity to equip one or more additional residential or technical premises on the upper floor;

Negative points influencing the choice of project:

1. High cost of the system due to the large amount of building materials, complex construction work and construction time;
2. The construction of such a system involves a lot of cuttings of roofing materials and other waste building materials;
3. The complex geometry of the roof makes it necessary to calculate the dimensions of parts with a high degree of accuracy, for which it is easier to use an online calculator. It is not recommended for non-professionals to install the structure - it is safer to contact a regional construction company;
4. high-quality waterproofing is necessary, especially at internal joints;
5. There is a lot of pressure on the valley in winter.

Design nuances

Typical designs of houses with a multi-gable roof include a pitched rafter system with a slope towards the walls of the building. This allows for effortless drainage of rain and snow removal. The structural elements that make up the roofing device are as follows:

1. A slope is a fragment of a roof without bends or turns;
2. Gable (pediment) – upper fragment outer wall, the boundaries of which are determined by the roof slopes. There is a minor difference between a gable and a gable: a gable has no cornice at the bottom;
3. Endova (groove) – internal corner connections roofs that appear at the junctions of slopes. At the end, the valley ends at the border of the pediment. The valley is the most loaded part of the roof structure, as in internal corners Snow and rain streams are constantly collecting (see photo above). During construction work, it is this area that needs to be given special attention in order to avoid problems associated with leaks in the future.
4. Rib (ridge - a horizontally located joint that is formed by connecting adjacent slopes;
5. The overhang provides connection to a roof fragment 300-500 mm wide. The main function of the overhang is to protect the building from rain and snow, the maximum possible drainage of rain and melt water;
6. The drainage system drains water from the roof into the drainage system;
7. The junction is a fragment of the junction of the slopes with the outer wall.

1. Skate;
2. Pediment detail - wind or end batten;
3. Lower valley;
4. Upper valley;
5. Drip edge - cornice strip;
6. Snow retention bar;
7. Adjacent strip;
8. Ventilation shaft cover;
9. Low tide on the window;
10. Pediment L-strap for external roof corners;
11. Soffit;
12. Ventilation duct covered with corrugated sheet;
13. Window in the attic;
14. Wall J-channel;
15. Gutter.

Step-by-step process for constructing a multi-gable roof

The assembly of the multi-gable roof is carried out in compliance with the requirements specified in the project. The steps are as follows:

1. First, it is necessary to systematize climate data in the region; climate data will be useful in calculations and in the preparation of project documentation;
2. Project development and calculations building materials, drawing up a project estimate. This step is quite difficult to complete on your own, so don’t skimp – leave the job in the hands of professionals. It is also recommended to first make a list of construction materials, their quantity and approximate dimensions;
3. The first practical step is to fasten the Mauerlat along the perimeter of the external walls of the house;
4. Installation of vertical supports and fastening of horizontal purlins to form the ridge;
5. Assembly of support beams that determine the shape of the transition and the joining of the slopes;
6. The rafter structure is strengthened with the help of struts for a more even distribution of loads;
7. Parts are fastened with metal hardware - steel plates, brackets, threaded rods or anchors;
8. On the rafters outside a frame is assembled from slats for fastening the roofing material.

The design of the frame is determined by the choice of roof covering. When installing a soft roof, it is better to install a continuous frame, without gaps. If the roof will be covered with rigid roofing materials(metal tiles, corrugated sheets, corrugated sheets), it is allowed to make gaps between slats or boards in the frame.

Protection from moisture and heat loss

Waterproofing materials in rolls are very easily rolled out into strips and attached with an overlap (overlap - 100-150 mm), perpendicular to the slope. The joints of the rolls are sealed with special adhesive tape or construction tape. Joints and seams on valleys must be sealed especially carefully - with two or three layers of tape or tape.

If the installation of waterproofing layers was not carried out correctly technological process, using low-quality materials, then you should expect corresponding consequences - moisture will collect under the roof and get wet thermal insulation layer roofs will rot and mold wooden beams and rafters.

A couple of decades ago, the most popular materials for roof waterproofing were glassine and roofing felt, but time and technology do not stand still. Innovative waterproofing membrane coatings (films) can not only retain their properties much longer performance characteristics, but also comply with the requirements for environmental friendliness and safety of people living in the house.

When assembling a multi-gable roof, additional unoccupied space appears in the attic, and it is possible to arrange residential or technical utility rooms in it. In view of this additional opportunity to expand the space, the roof must be well insulated and protected from atmospheric moisture. Mineral wool and other similar insulation materials are an ideal solution for complex roofing, as they can take any shape. A layer of soft thermal insulation prevents the formation of “cold bridges” - this is where moisture first appears. Basalt or glass are best suited for the manufacture of mineral-based thermal insulation. The advantages of these materials for surface insulation are obvious:

1. Low weight of insulation;
2. High fire safety and fire resistance (NG group);
3. Environmentally friendly operation.

Mineral wool also absorbs noise, which is important for all residents of the house.

How much does it cost to build a multi-gable roof?

Drawing up a project, calculating estimates and quantities of building materials, time and labor costs - all these parameters can only be calculated with a high degree of accuracy by professionals. An independent approach to such a responsible matter can result in significant financial losses. Therefore, you should not save on the services of specialists - your costs will pay off handsomely.

If the structures are designed and built in compliance with GOST and SNiP, then the result will be as follows:

1. The house will look neat and beautiful, I bet the design that no one has seen will make it unique;
2. The roof's long-term resistance to weather conditions and other loads is ensured;
3. The housing will acquire additional free rooms, which you can arrange at your discretion.

Costs of constructing a multi-gable roof and carrying out preparatory work(drawing up a project and other necessary documentation) depend on the quality and cost of consumables, the complexity of assembling structures, and the level of employment of workers. That's why approximate cost can only be determined after all preconditions construction - calculation of materials, design, hiring a team of professional workers.