Resistance to weathering and stress
The hipped roof is more robust and highly resistant to extreme loads. For Russian latitudes, especially the northern one, this is an ideal option. On the other hand, a hipped roof has a high heat transfer, and therefore, for snowy regions, it needs additional thermal insulation.
This is why seasoned planners and architects know that it is not enough to be guided by the choice of one roof shape because of the budget. Everything should be tied into one solid logical knot: the appearance of the roof, layout, the ability to use the under-roof space as a living space, the preferred roofing material, construction, complexity of the device, and even color.
Here is an interesting video on this topic that we recommend watching:
Installation of the truss system at home
To build a roof of a house with your own hands, you need to complete all the work in a specific order. Installation of elements is not difficult, but you need to control the quality of nodes and connections. The most important areas are:
- fastening the Mauerlat to the wall;
- fastening the rafters to the Mauerlat;
- fastening the rafters together.
The main stages of the construction of a gable roof
To properly build a roof with your own hands, the work should be done in the following order:
- installation of a Mauerlat;
- installation of rafters at a design angle;
- pinning the legs at the top;
- loosening of supporting structures with the help of racks, struts and fights;
- installation of counter battens, battens, waterproofing;
- do-it-yourself roofing system insulation;
- installation of the bottom lathing, installation of roofing.
Next, it is worth considering the main nodes of the rafter system so that the installation is carried out in compliance with the technology.
Mounting the Mauerlat to the wall
When installing with your own hands, it is important to understand where to lay the Mauerlat. A bar with a section of 150x150 mm or 200x200 mm is installed on the inner edge of the outer walls
At the same time, it is important to ensure sufficient thermal insulation of such an area. The outer part of the fence in this area can be made of the same material as the walls.
In this case, the laying is performed at an angle equal to the slope of the slopes. The second option is to fill the space with expanded clay concrete. These methods are relevant for stone houses (brick, foam concrete, expanded clay concrete, and the like). If you plan to build a frame or wooden house, the upper harness or crown of the wall will act as a Mauerlat.
There are several ways to do the job:
- Stapling. To do this, in the penultimate row of masonry, wooden bars are installed, to which the lower part of the brackets will be attached, and the upper one is inserted into the Mauerlat. Wooden corks must be impregnated with an antiseptic.
- Fastening to a wire. To perform this option, you will need to lay a wire 3-4 mm thick in the masonry of the walls or a monolithic belt, its length should be such as to wrap the bar and twist the wire rod.
- Fastening with bolts or studs. The options are similar, but the former provides greater reliability. Fasteners are laid in a monolithic belt. After that, the timber is laid on studs or bolts. To make holes for them in the right places, lightly tap on the Mauerlat. The resulting indentations will be the places for drilling holes. After their preparation, the final installation of the bar in the design position is carried out and tightened with nuts.
When building a house, it is also important to know how to build a Mauerlat. Standard lumber sizes are 6 m, and walls can be longer
To connect two elements along the length, you will need to perform a straight lock. To do this, the lower part is cut out from one element, and the upper part of the other. Fastening with bolts.It is not recommended to cut at an angle in this case. With the help of a straight cut, corner joints are also made.
The choice of the method of fastening the Mauerlat largely depends on the material of the walls, more precisely on its strength. For lightweight concrete, pouring a monolithic belt around the perimeter will be a mandatory measure.
Fastening the rafters to the Mauerlat
There are two most common options for doing DIY work when building a house:
- with a gash;
- without washed down.
In both cases, the rafters are additionally fixed with metal corners on both sides. When using a saw-cut system, you will need to process the timber at an angle corresponding to the slope of the roof of the house. When installing without a gash, you need to prepare a support bar with your own hands, which will not allow the system element to move across the Mauerlat. As an additional fixation, nails are hammered in and a wire twist is brought from the leg to the wall (you can perform such an attachment through one leg).
2 types fastening rafters to mauerlatu
In order to install the gable rafters of the house with your own hands, for detailed and visual information, it is recommended to familiarize yourself with the series "nodes of wooden roofs of residential rural buildings". This album contains a large number of options for securing all the elements that will help you complete the installation without errors.
The device of 4 pitched hipped roof on the example of a gazebo
For a square gazebo 4.5 * 4.5 meters, a hipped roof covered with soft tiles was made. The slope angle was chosen "floor material", taking into account snow and wind loads - 30 °. Since the structure is small, it was decided to make a simple system (in the picture below). The distance between the rafter legs is 2.25 m. With a rafter length of up to 3.5 m, a board of 40 * 200 mm is needed. A beam of 90 * 140 mm was used for the strapping.
Scheme of the rafter system of the hipped roof for the gazebo
They assembled the rafter system on the ground, fixed it on the support pillars, then installed a solid flooring made of OSB, then covered it with flexible tiles.
First, a harness was assembled, which will be attached to the support pillars. Next, we installed the rafters, which rest on the middle of the strapping. The procedure here is as follows: in the middle we put a stand, on the top of which the rafter legs will join. In this version, this rack is temporary, we only need it for a while - until we connect the first four rafters in the center. In other cases - for large houses - this rack may remain.
The procedure for assembling a hipped 4-pitched roof: assembled the harness, attached the middle rafter legs to it
We take a board of the desired section, lean it against the rack in the place where they will connect (depending on the desired angle of inclination). We mark how to cut it (at the top, at the junction and where it joins with the harness). We cut off all unnecessary, try again, adjust if necessary. Further, on this blank, we make three more of the same.
Now the rafter system of the hipped roof can be assembled. Most of the questions arise about the junction of the rafter legs in the center. The best way - reliable and not too complicated - is to take a piece of timber of a suitable section, make an octagon out of it - for joining eight rafter legs (four corner and four central).
The size of the edges - along the section of the cut of the rafter legs
Having fixed all four central elements of the rafter system with nails, we do the same operations with the corner rafters: we take one, try it on, cut it out, make three copies according to the template made, and mount it.
The rafter system of the 4 pitched hip roof is assembled
By the same principle, we make half-legs (shortened rafters).If desired, all connections can be additionally reinforced with corners or metal plates, then the rafter system of the hipped roof will be more reliable and you can not be afraid even in the heaviest snowfalls.
The tests were successful
We put the assembled system on the pillars of the gazebo, fasten it with nails, corners, and fasten it with bevels. After that, you can mount the crate (in this case - solid) and lay the roofing material.
Gable roof with different slopes: challenging and original
In recent decades, the fifth facade of the house has begun to attract more attention, since it is the shape of the roof that distinguishes the house from the general mass of its fellows, gives it originality. It is able to significantly increase the area of the house intended for housing, its convenience and functionality.
The classic gable roof is the simplest multi-slope design solution. The slopes form two inclined planes and gables from opposite sides. Since it is not at all necessary that their slopes be equivalent, it means that the lengths can be different. By the way, a gable roof with different slopes has recently become very popular.
The two ramps typically intersect at a ridge that is parallel to the longer side of the building. This simple design allows a house to have a traditional shape. Compared to other types of roofs, it does an excellent job with its protective functions: rainwater is not impeded by creases of slopes, it also does not have valleys - concave corners that form at the intersection of sides of different heights, snow usually collects in them. The shape of the end walls of a house with a gable roof in the upper part is a triangle, the angle at the apex of which depends on the slope of the slopes.
Types of gable roofs
of three types:
- symmetrical;
- with different angles of inclination of the slopes;
- broken gable (attic).
All these types differ from each other not only in shape, but also in the area of the attic space, which can be used as additional space for storing things and other household purposes.
You can also make an attic - a room for a family member to live. The arrangement of the roof in this case will have its own characteristics, since it is necessary to insulate the attic.
To understand which design to give preference, it is necessary to consider each type separately.
Symmetrical gable roof
common cottages.
Symmetry helps to make wall and Mauerlat loads even.
With this form of construction, the rafters will not bend, and the supports can be installed anywhere.
Perfect for such a structure as a roof, corrugated board is a reliable and durable material that resists wind and atmospheric adversity well.
Gable roof with different slope angles
45 degrees, equip a residential
When erecting an asymmetric gable roof, it is necessary to make the correct calculations, since the load on the walls and the base of the house in such a structure will be unevenly distributed.
In addition, the length of the slope depends on the angle of inclination, which should be taken into account when choosing a roof covering. For example, corrugated board is not recommended for use on roofs with slope lengths exceeding 12 m.
Important! With a slope angle of 45 degrees, the weight of the snow can be ignored, since the snow cover will fall off the roof on its own under its own weight.
Broken gable, or mansard roof
second rooms.
In this case, the roof fracture line must be at a height of at least 2.8 m.
This type of roof is significantly different from a conventional symmetrical or asymmetrical roof, and not only visually.
Metal tiles and other materials are used as roofing.
Note! Calculations when creating such a roof will be complicated, so it is better to contact specialists who can calculate the location of the rafters and other elements of this structure.
combinations.
- ends;
- pediments;
- edges;
- forceps.
Another combination of this type of construction is a half-hip roof. This is not only a beautiful, but also a practical solution, thanks to which you can get a spacious attic and a durable roof.
Subtleties of design and accounting for the local area
It will be interesting for you to know that in the construction world, a hipped roof is a clear indicator of the balance of a project. If the contour of such a roof turns out to be a closed rectangle, and the edges of the slopes converge at one point, this is a sure proof that the house was built with a perfectly regular shape. Whereas a gable roof will not be able to show any of this, and quite a few flaws will not be visible to the untrained eye. Are you ordering a turnkey house? Then it makes sense to focus on the hip or hip roof.
Another interesting point: water from the gable roof is diverted only in two directions - from the slopes, then when at the gable roof it flows in four directions at once. This moment is of decisive importance for the planning of the local area. If you want to make a large walk-through area right next to the house, with garden lights, gazebos and landscape elements, then, of course, it is more rational to put a gable roof, because in the Russian area, with a large amount of snow and precipitation, drains will not be able to fully protect the space under the roof near the house ...
If you live closer to the north of Russia, then neither cable heating nor snow guards can 100% guarantee that one day a large piece of ice will not fall on you or on an expensive roadside lamp. And therefore, the adjoining territory of houses with this form of roofs is usually arranged according to the following principles:
Comfort in using the roof space
From the point of view of experienced builders, a gable roof is the simplest form, especially if you are building it with a standard rafter or rafter-girder system. It is easy to calculate, it is easy to hide flaws and mistakes during the construction of walls, and the sufficient height of the pediment allows you to install large skylights and even doors with access to the balcony.
If, however, the gable roof also rests on the attic walls, then the under-roof space turns out to be spacious and comfortable:
But under the hipped roof, the usable area of the attic with the same parameters of the house will already be smaller, there will be more creases in it, which will make it more difficult for you to make the free layout of the attic. And if such an attic does not have an attic wall, then things are really bad. Indeed, in order to equip a cozy and functional attic under the roof, the attic wall should be 115 centimeters high:
A gable roof in this regard is good in that it has at least two straight walls. But if the hip roof covers a fairly large area of the house and four attics with intermediate walls are equipped under it at once, then they also turn out to be cozy and with two straight walls.
But the hipped roof in this regard loses to the gable. When arranging an internal attic under it, you will have to put more additional vertical walls, and the windows will have to be positioned in the form of inclined ones, which will lead to waste on their reinforced waterproofing. But among the advantages of a hipped roof, we also highlight the following: the smaller the lower hip size, the more functional the attic is.
Yes, there is some truth in the fact that a hip and half-hip roof does not allow building such an extensive attic in area as the classic gable. But experienced roofers know that with a competent approach and proper organization of ventilation of the under-roof space for arranging an attic, a four-slope hip roof is still better.
In addition, the attic space or residential attic near the hipped roof warms up evenly from all sides, and therefore the temperature regimes in it are the most comfortable. Believe me, this is an extremely important point!
Yes, the attic under the hipped roof has more slopes, and the design of the interior is still a challenge. On the other hand, a house with a hipped roof has a closed volume, an orderly and calm image. And this is already a matter of perception.
Types of gable roofs
The planes of the gable roof are connected at an angle, forming a triangle. Depending on the angle of fixation, different roofing options are obtained. Each type of gable roof is characterized by certain features, for example, the shape and size of the slopes.
Symmetrical or simple gable roof
The classic version of a gable roof is a symmetrical structure, the slopes of which have the same area and length. The connection angle of the planes can be different. For example, steep slopes allow you to create an attic in an attic space. In this case, the slope angle is 35–40 degrees.
A symmetrical roof is in the shape of an isosceles triangle, and the length of the base may vary. The construction of such a structure presupposes the presence of all the basic elements of the rafter system. In this case, the weight of the roof is evenly distributed over the two walls, which serve as a direct support for the slopes.
Asymmetrical simple roof
The asymmetrical roof has two slopes of different sizes. Thus, the top rib is offset from the middle to one side. The result is a triangle-shaped roof with uneven sides.
The roof on uneven sides looks modern and is suitable for various design styles, for example, modern. The attic space under such a roof is smaller than with a symmetrical design. The design assumes a strict and accurate calculation of the load on the walls, since one side of the roof carries a greater load than the other.
Gable sloping roof structure
A broken structure with an internal or external fracture angle is the most difficult option. Self-construction of such a roof is extremely difficult and requires a professional calculation of all parameters.
This is due to the fact that when designing a broken roof, it is important to determine the angle of fracture, load, parameters of the rafter system in the place of curvature
A roof with an internal or external break requires not only an accurate calculation of the slope of the slopes, but also correct operation. In winter, large amounts of snow can accumulate on the upper slopes, which should be removed in a timely manner. The sloping roof allows you to create a spacious attic room, which is especially important with an external fracture of the surface. In this case, the height of the attic ceiling is quite comfort.
Photo gallery: options for gable roofs
Sectional gable roof
In the design process, a sectional drawing of the roof structure is created. This allows you to display all the features of the structure, indicate the internal elements and their dimensions.
A detailed drawing greatly simplifies construction, allows you to take into account all the features of the structure. A sectional roof design assumes a clear outline, displaying both external and internal elements.
Construction of a gable roof in stages
To build a roof on your own from scratch, you must first select a forest of a suitable section. In general, lumber of the following dimensions is used for construction:
- boards 4-6 cm thick and 200 mm wide without knots - on rafter legs and girders;
- one-piece square beam 100-140 mm or double boards of the same width - on the Mauerlat;
- board 15 x 2.5 cm - on racks, struts and crossbars.
To determine the amount of building materials, it is necessary to calculate the slope angle and the length of the slopes, which is described in detail in a separate instruction.Knowing these parameters, you can also clarify the dimensions of the beams and the step of their installation, using the table:
Mauerlat installation
The method of attaching the beds to walls and partitions depends on the material from which they are built:
- On load-bearing structures made of wood, Mauerlat strapping is not performed. The beams are attached directly to the walls using the cutting method, for which special grooves are cut out in the upper part.
- The timber is fastened to concrete and brick fences with anchor bolts or pins, embedded in the masonry in advance. From below, under the strapping, a layer of roofing material is glued to the bituminous mastic for waterproofing.
- On the walls made of foam blocks or aerated concrete, a reinforcing reinforced concrete belt is made before laying the beds, as shown in the photo. Further fastening - as described in p. 2.
The correct fastening of the gable roof rail is shown in detail in the thematic video:
Installation of rafters and struts
A hanging type farm can be easily assembled on the ground, and then brought up for installation, which is described in detail in the corresponding article. But without lifting devices together with an assistant, it is not easy to perform such an operation, therefore it is better to mount all the elements in place.
The step-by-step assembly of the rafter system of the layered type is as follows:
- Mark the points of attachment of the rafter legs to the Mauerlat and cut grooves in it along the width of the boards. If you plan to mount on steel corners, then you need to set the beam to the design position, outline and make a cutout in it so that you get a flat platform.
- On the central partition, install the extreme racks of the ridge girder, fixing them with temporary struts.
- Connect the supports with a ridge bar 200 x 50 mm, propping up the racks at the rafter legs attachment points. Make the connections with self-tapping screws through metal corners.
When the ridge girder is installed, you need to try on the rafter on one side and cut the landing area into it. Then repeat the operation on the opposite side, attach both beams to the ridge and trim to align in one plane. After that, attach both legs from above and below with corners, and tie together with plates.
This way each leg is secured from above and below.
In the same way, mount the rest of the trusses, installing them with a calculated step.
To tighten the structure, horizontal ties are attached to the layered beams. Initially, they are screwed to the trusses with self-tapping screws, and then fastened with through bolts.
In the last turn, the eaves overhang is formed. To do this, the ends of the rafters are sawn and trimmed with planks, as shown in the photo.
We lay the covering
The last stage of building the roof of a house with your own hands is laying waterproofing, installing the lathing and finishing flooring. The technology that we will offer in the step-by-step instructions is suitable for most roofing materials, only the distance between the boards for different coatings differs. Example: for a metal tile, a step of 35 cm should be maintained, for a slate roof - 500-600 mm, and the interval for a profiled sheet is selected depending on its grade and metal thickness.
The roofing material is laid in the following order:
- Cover the rafter system with waterproofing sheets - a superdiffusion membrane, nailing it with strips 4-5 cm thick to the beams. The film is laid horizontally from bottom to top with an overlap of 10-15 cm and gluing the joints with tape.
- Fill the counter-lattice boards perpendicular to the planks, observing the required pitch.
- Lay the chosen covering and attach it to the prepared substrate.
- Install a ridge bar, chimney framing, and other cover strips.
If the gable roof needs to be made warm, then place mineral wool and vapor barrier between the rafters, as shown in the roof section. For more installation details, see the latest video:
The complexity of the rafter system
As we have said, the construction of a hipped roof is more complex. During the construction process, you will have to think over more supports and take into account not only the structural requirements for the roof, but also the convenience of planning the internal under-roof space.
A standard gable roof consists of two rectangular slopes of the same parameters, which are connected on one side in the ridge, and on the other they lie on the load-bearing walls of the house. Such slopes can be either the same and symmetrical, or be located at different heights and be of different parameters.
Gable roofs are quite practical and attractive, but lovers of asymmetry - modern architects - today increasingly prefer pitched roofs, when one of the slopes is higher or shorter than the second. Here lies the main drawback of this design: if they try to give it this kind of originality, then it will be necessary to strengthen the rafters and more accurately calculate the load of the roof on the walls and foundation of the house. And in terms of the economic component, such a roof will not be more profitable than a hip roof.
In addition, it is not uncommon for the walls of such houses to crack even over time due to an incorrectly distributed load. In a word, if you want to build something uniquely simpler than a hip roof, then you will have to dwell only on the classic gable roof without any architectural frills.
The hipped roof is not only more attractive: it is easier to give it an original look with modern roofing materials. The very same rafter structure is more durable and reliable than the gable, and has a high resistance to external loads. But such a roof has much more ribs and inner corners than a gable roof.
The main difference between a gable roof and a gable roof is that it lacks gable and gable walls. In addition, at the intersection of the slopes, it is necessary to have diagonal and on-bone rafter legs, into which shortened rafters are cut in to everything.
Moreover, such diagonal rafter legs have a greater length and carry a greater load, which is why they need an intermediate support in the span, which is called a truss structure. Let's say that you will have to tinker with such a rafter system for sure.
This is what the standard roof truss systems look like for both roofs:
Types of roofs and types of roofs
A well-thought-out exterior of a private house will create a pleasant impression, both for the owner of the home and for his acquaintances or neighbors, because according to the external perception of the house, an opinion is formed about its owner. Ideally, the design of the house and the extension should be consistent with each other, properly combined with each other.In order for this to become possible, it is necessary to use a single roofing material, both for the house and for an extension to it. An exception to the rule will be glass dining table extensions with views of the environment or a greenhouse. In this case, the roof must also have a transparent appearance, regardless of the house and its covering.It is necessary to understand the specifics of words, to understand their essence, since the roof is the upper part of the house, a structure that has layers of thermal insulation and waterproofing. In turn, the roof is a decorative coating that protects the roof from atmospheric precipitation.The choice of roofing materials for an extension depends on several factors:
- The functional role of the premises.
- Extension architecture.
- Building materials used in the construction of a house.
- Roofing materials.
- Financial opportunities.
If it is impossible to use a single roofing material, then you need to think about how it will look externally, what is appropriate in this case and what is not
It is important to keep the house and the extension in the same style so that the extension does not seem superfluous. Ideally, an additional structure should emphasize the house, be its original decoration.
If you think over the project well, you can create such an effect that it will seem as if the roof of a private house "flows" onto a terrace or veranda, thus forming a single whole. Roof types:
- Flat.
- Pitched (the name depends on the number of skates)
- Single and multi-stage.
- Dome and conical.
- Complex (broken line, multi-pliers, etc.)
- Ceiling and attic.
A composite roof is only used for outbuildings that must match the style of the house, such as Classicism or Gothic. In general, a simple shed roof is more popular for outbuildings, because it will be the optimal, practical and inexpensive option.A gable roof can be built using different methods, but initially you need to determine:
- Construction of an additional building.
- The used roofing material.
- Roof features.
- What will be the layers of thermal insulation and waterproofing.
- Financial opportunities.
The device and elements of a gable roof
A gable roof consists of two inclined planes, called ramps, connected at the ridge and located at an angle to each other. This angle is called the angle of inclination of the roof, and depends on the functionality, mechanical characteristics of the roof and the choice of roofing. On the end sides, the slopes form triangles. They are called roof gables.
The "skeleton" of the roof, its skeleton, consists of the following elements:
- Mauerlat is a support beam laid on the top of the opposite walls of the building and transferring the load from the roof to the walls of the house. Floor beams or rafter legs are supported on the Mauerlat - it depends on the type of roof. The role of the Mauerlat in a wooden house is usually played by the upper crown of a log house; in a stone structure, the Mauerlat is attached to the upper row of masonry using anchor bolts. The material used for the Mauerlat is a timber made of dry coniferous wood with a section of 100x100 mm or 150x150 mm.
- The rafter legs are designed to form a "triangle" of the roof - they are installed in pairs on both sides of the roof and are connected in the area of the ridge, forming a rafter system. The rafters form the main contour of the roof, the step of their installation depends on the geometric dimensions and type of roofing, as well as on the calculated snow and wind load. Usually it is in the range of 60-120 cm. Material - edged board with a thickness of at least 50 mm, conifers. To increase the strength, the board is placed on the end.
- Racks - supports designed to support the rafter system. The racks are installed vertically in the area of the ridge; with a roof width of more than 8 meters, they are also installed in the gap between the ridge and the cornice. They are made of 100x100mm or 150x150 mm timber.
- Girders - horizontally laid timber designed to support the rafter system. The runs rest on racks and run parallel to the Mauerlat. Material - timber 100x100 mm or 150x150 mm.
- Tightening - a bar laid horizontally perpendicular to the Mauerlat. Its purpose is to fasten the rafter legs, the tightening does not allow the structure to diverge in different directions. The cross-section of the bar is the same as that of the Mauerlat.
- Lezhen - a horizontal support bar located on an internal load-bearing wall. Racks are installed on it to support the rafter system. Material - timber 100x100 mm or 150x150 mm.
- The struts are inclined supports installed at a certain angle to the rafters and connecting the rafter system into a truss - a rigid structure that can withstand significant loads. The braces are installed on a brace or a bed and are made from a board of 50x150 mm or 100x150 mm.
- Roof lathing is a system of boards or a bar, and sometimes of plywood, on which a roofing of the selected type is laid. The design of the lathing and its pitch depend on the rigidity of the roof covering.
Gable roof elements
The presence of certain elements in the "skeleton" of the roof depends on its type and geometric dimensions. The gable roof rafter system is of two types: layered and suspended. The rafters of the layered type rest on the upper end on the ridge beam, or girder laid on the rack, and on the lower end on the Mauerlat. In wooden buildings, the connection of the rafters and the Mauerlat is sliding to avoid deformation of the roof when the house shrinks. Hanging rafters are supported at the top of each other, and at the bottom - on the floor beams or braces. To give additional rigidity, the truss is pulled together with a crossbar and struts are installed.
Roof options with layered and hanging rafters
The influence of weather conditions on the design calculation
Technological features are based on the same geometric parameters. The slope of the slope determines how the structure will survive the weather conditions. It is according to climatic data that the value of the angle is determined, which will ensure the reliability and durability of the roof. A sensible step in planning is to study the wind rose over the last 2-3 years in the available area.
It can be used to judge the strength of the wind and its most frequent direction. From the side of the roof, from where gusts come in most cases, it is recommended to install a ramp with a smaller angle of inclination. This will reduce the load on the supporting structure and also reduce the noise generated by the vibration of the roof.
The calculation of skates is influenced by precipitation. In dry and warm areas, the angles can be the smallest and the lengths the longest. The terrain with abundant precipitation requires steeper slopes from the construction so that all moisture and solid precipitation leaves the roof as quickly as possible, does not stagnate and does not create unnecessary loads. Ranges of roof angles vary widely: from 11º to 70º.
The choice of roof design depending on the slope of the roof
Standard projects of gable roofs with different angles of inclination
The construction of a roof with different slopes can have a lot of minor nuances, but there will be few basic parameters. For example, slopes in an asymmetric roof can have the same length, but be located at different angles, or vice versa - slopes installed at the same angle will have different lengths.
There are several standard designs that are worth looking at in a little more detail:
- The same length of slopes, different angle of inclination. One of the slopes in this design is located at a large angle. Such a roof allows you to equip a good terrace on one side, and to arrange utility rooms under a lower slope. It would be unprofitable to make the entire roof shallow - in this case, too much snow will accumulate on it. This version of the asymmetrical roof is quite simple and does not require much effort - in particular, there is no need to strengthen the foundation. True, there is still one drawback - you have to thoroughly tinker with the design. It is much easier to design a roof with the same slope of the slopes.
- The same angle of inclination, different lengths of the slopes. This design option is the complete opposite of the previous one. Increasing the length of one slope allows you to cover all outbuildings near the house, such as verandas and gazebos. In this case, there are also no special requirements for the foundation, because part of the load from the roof will fall on the extension. However, in the absence of extensions or other nuances of construction, you can increase the length of the ramp located above the main building. In general, even such a simple scheme has considerable variability.
- Different length and shape of the slopes. To optimize the loads on the rafter system of the house, a pitched roof with different lengths and ramps is often used. The main feature of this design is the presence of a fracture, due to which some of the loads are eliminated by themselves.True, new loads appear at the place of the break, and they have to be compensated for with additional struts - but this is a quite reasonable price to pay for balancing the forces acting on the roof.
- Non-standard designs. By default, pitched roofs give the maximum degree of freedom in arrangement, so there is nothing surprising in the appearance of very interesting structures. For example, there is a scheme in which all efforts are aimed at creating an interesting second floor. If you cut off the corners of the building, you can reduce the degree of pressure on the foundation, and therefore save on construction costs.
- Roof with an offset ridge. It is most difficult to work with such structures, but with the correct implementation of all stages of the arrangement, you will get almost the most interesting roof. The main difficulty lies in the accurate calculation of the loads on the rafter system, especially when it comes to wooden houses - they sit down for a while, so you need to prevent the roof from skewing.
There are other drawings of a gable roof with different slopes, but the structures described above are most common.