Roofs of private houses, as a rule, always have rods - such a roof design is most easy to operate and maintain. Water and snow are better and faster from such roofs, which guarantees excellent waterproofing. Yes, and the appearance of a private house becomes more attractive.
In addition, it appears extra room In the attic, which can be used for accommodation and devices of the attic or for numerous business needs.
To make the roof reliable and convenient, it is necessary to correctly calculate the angle of the roof of the roof, which depends on many reasons. First of all, these are climatic conditions for the residence and characteristics of the roofing material. Natural conditions affecting the magnitude of the roofing scope:
With a small slope of the roofing rods, as a result of strong busting winds, water can get under the coating joints.
In the question, what angle of the roof rope must be done, the value is roofing:
From the above, we can conclude that the decision on the optimal coal of the roof of the roof depends on natural conditions, such as roofing material and the capabilities of the owner of the house.
With a large slope, the consumption of materials during the construction of the roof increases.
In addition, the type and step of the crates depends on the inclination of the roof. The smaller the bias of the roof, the less should be the step of the crate. For minimum angles, it is from about 35 to 45 centimeters.
When calculating the angle of inclination of the roof, it is necessary to take into account that the higher the average annual temperature and less precipitation, the more canopy you can build a roof.
At the same time, it is necessary to take into account that the type and design of the drainage system of the whole house depends on the inclination of the roof.
Choosing an angle of inclination of the roof, depending on different factors
When determining the inclination of the roof, there is no perfect solution that is suitable for all climatic requirements. It is important to find here optimal option, on which the consumption of materials and costs are dependent.
Than more square Roofs, the more expensive it stands.
The recommended roof skate angle is from 20 to 45 degrees.. When it is increased, it is necessary to take into account the creation of additional structures to enhance the entire structure. A decrease in the angle will result in additional consumption of materials to ensure normal waterproofing the roof of the house.
a - one of the most commonly used Roof designs, having two inclined planes, separated by an edge - a skate.
Skates can be as the same, creating in cross section an elevated triangle and different having various angles Tilt and Square.
In addition, distributed mansard design double roofWhen the rods consist of two planes with a different angle of inclination.
This design allows more effective Use an attic space in economic or residential purposes.
The main advantage of two scanty roofs Consider easy constructions and reliability in operation, lack of or small number of rtands or rashobods that promote water cluster or snow.
The design as a whole provides the optimal distribution of the weight of the rafted and roof on the walls, contributing to the maximum service life of the roof.
Details on how to make a double roof you yourself will read.
During the service life, the roof is constantly tested loads Miscellaneous. The problem consists not in their presence - this issue is easily solved strengthening . Case in diversity and in the unevenness of these loads.
Permanent and unchanged - weight roofing cake And the roof itself, they create continuous pressure on elements due to their weight. Additional belongs to the wind load and weight of drop-down precipitation.
NOTE!
These factors having worried about their unpredictability and big scattering values.
If moderate winds of a certain direction prevail in the region, the one-time rush of hurricane power may cause significant damning Or throw roof at all. In winter, with an abnormally large number of snow dropped, the load on the roof can exceed valid valuesIt is fraught with deformations or impaired integrity of the coating and the formation of leaks.
You can deal with such natural manifestations only by preventive measures:
The choice of the right angle of slopes is one of the most effective techniques for neutralizing the harmful effects on slinge system. It reduces snow pressure by eliminating its accumulation, adjust the wind load by reducing the roof sailiness and ensure the rainwater flow, excluding its freezing at night during the autumn period.
Wind Loads on Stropyl Systems
From the point of view of saving material and reduce the roof sailiness, 
the angle of inclination of the skates must be minimal.
At the same time, too coloring roof It will hold the large masses of snow or prevent the effective outflow of water.
But most main criterion The choice of angle of inclination is.
Its characteristics determine the optimum based on such indicators:
Based on these parameters, for each type of roofing material there are their limits of inclination of the rod. Several simplifying, it can be said that materials with a smoother and waterproof surface allow the smallest angle of inclination, and more rough and absorbing water - require a sharper tilt. Basically, prevail Values \u200b\u200bfrom 20 ° to 45 °.
The dependence of the angle from the angle and roofing material
First of all, you should decide what an angle of inclination. This is the angle between the plane of the skate and horizontal.
Slot tilt across measurement in degrees or percentage. If everything is clear with degrees, then percentages are obtained from the ratio of the height of the skate over the overlapping of the upper floor to half the width of the building.
The use of interest is introduced for simplicity - complex trigonometric calculations Frames are fraught, And split one value to another easier and more accurate. Nevertheless, often resort to help bradys tables, To find out the exact value in degrees.
When calculating the angle of inclination of the broken skate, values \u200b\u200brelating to the detected areas are used. This refers to both widths - the part is taken into account that is covered by the roof site and to height above the overlap.
All subsequent calculations are made for each site separately, output and use some the average value is impossible.
This concerns both the definition of loads and the power of carrier elements and the calculation of the required amount of material.
How to measure the angle of the bone roof
It is necessary to immediately determine the correct understanding of the term "minimal". This refers to the smallest permissible value of the roof angle, taking into account the wind and snow load.
It is at this moment that many difficulties lick : These values \u200b\u200bin different regions are very different from each other, so it is necessary to know the average annual amount of precipitation., snow volumes and its quality composition (wet snow is much heavier dry and may cause destruction Incorrectly calculated roof).
In addition, it is necessary to have an idea of \u200b\u200bthe prevailing winds, their strength and direction and, which is especially important, in the region of periodic busting of the wind of hurricane power in the region.
CAUTION!
Ignore such extreme weather manifestations for reasons "avoshu in no case can notbecause one single case is capable destroy the whole roof.
Considering these circumstances, the minimum angle can be defined as the smallest value declared in the bottom with amendment for climatic conditions. Experts are unambiguously considered for pitf roofs at least 20 °which is used only for non-residential or unused attic.
Search for a minimum corner
The angle of the correct bone roof lies within 20 ° -45 °that corresponds to the spread of the values \u200b\u200bof the properties of the material and the averaged climatic parameters.
The angle of the twinkage roof - an important indicatoraffecting the durability and integrity of the whole building, and refer to it as a secondary factor is impossible.
Accounting for all possible loads, both permanent and one-time extreme, will help ensure conservation and comfort of your home.
More accurate values \u200b\u200bare chosen on the basis of factors such as ::
Optimal bone roof inclination angle
In the whole globe there are thousands and thousands of architectural traditions in terms of external view roofs But modern architects fully changed the idea of \u200b\u200bthe culture of country construction by entering single-table forms of roofs as perfectly combined with landscape design And diverse performed. Of course, they asked this new fashionable tool in Australia, where the lack of snow in general as a natural phenomenon allows them to create with architecture residential houses All that fantasy is prejuitive.
But in the snow regions of Russia, you can build such a roof, but with a corresponding bias and in the right direction. In a word, the main parameter of functionality is the angle of inclination of a single-table roof, calculating which we will now teach you.
First of all, calculate the load on a single roof. They are customary to share for permanent and dynamic. The first is the weight of roofing, which is always on the roof, installations such as antennas and plates, chimney, etc. Those. All that will be on the roof and day, and at night.
And the dynamic loads, or, as they are also called, variables, are those that come from time to time: snow, hail, man, repair materials and tools. And the wind, which, well, loves to tear one-sided roofs due to their sailboat.
So, if you make a slope of a single-table roof at 30 °, in winter the snow will put on it with a force of 50 kg per square meter. Just imagine that on your roof will sit one person for each meter! Here is such a load.
And if you raise the roof up to above 45 °, the snow is likely to be lingering at all (it also depends on the roofing roughness). But for the middle strip of Russia, where the snowfall is moderate, a single-piece roof is enough to do and in the range of 35-30 °:
The minimum angle that should be so that the snow can go from a single-sided roof itself is 10 °. And the maximum is 60 °, because it makes no sense to make the roof of the roof. The same applies to snow, which is even more clinging for such a roof.
That is why the owners of one-piece household buildings in winter are often taken for a shovel. It saves only the area of \u200b\u200bthe coating: the smaller, the less likely that the snow can get the material.
But in the windy regions, it is impossible to build roofs with steep slopes at all. For comparison: the slope of a single-table roof at 11 ° is experiencing exactly 5 times more wind power than a 45 ° skate. In view of this, keep in mind that a single roof always make a low part to the leeward side.
And be sure to calculate such a value for a single-piece roof as a combination of the most adverse permanent and temporary loads. Those. T. critical pointwhich should be able to withstand the rafting system. This, by the way, is often forgotten! Think, here, the snow roof will endure, the wind too ...
And what if you have a different storm and snowfall to get out to the roof? Is the design calculated at the same time on the snow, and on the wind, and at least two people? This is how trouble happens.
The slope of a single-bed roof - in a rather wide range: from 6 ° to 60 °. It all depends on the terrain in which you have gathered to be built: if you need to successfully reset tons of snow every winter, then make the scat abruptly if you plan to protect yourself from the wind - then more canopy. And from many other factors, including aesthetic.
The greater the angle of such a roof, the faster the water flows into the gutter. There will be no leaves, nor dirt, and therefore the roofing coating itself will last much longer. In addition, visual aesthetics selected are more visible on such a roof. flexible tile Or metal products, which often plays a big role for the owners.
The speed of flowing rain and melt water on low-diagnose rods is much lower, and therefore there is a risk of stuffing water, collecting mud and ice jams. Moss quickly develops on such roofs and foliage sticks. Especially if roofing is rough.
As for the rainwater, the main requirement to the roof, so that the water on it is on the melting of snow or after the rain to remain on the surface of the roofing material, and easily rolled. If it has too low bias (for a specific area), the liquid will stand for a long time in all irregularities and seams. And the longer - the more likely it has a chance to penetrate inside and create a lot of problems in the form of damp, spoiled insulation and corrosion of metal elements of the roof:
But, if a big roof of the house rises above such a construction, then nothing terrible:
But it still has its own plus: the less the angle of the tilt of the single-row roof, the greater the geometry of the interior to the traditional cube. And, it means, perceived easier and is used with greater benefit.
Therefore, the lower the angle of inclination of such a roof, the more it is necessary to take care of its waterproofing so that the thahno and rainwater could not penetrate into the rapid system. Therefore, there are already necessary roofing plates like membranes, rolled insulation or solid sheets.
With a standard angle of inclination, one-piece roof is built as:
Single roof, the angle of which is only 3-5%, often make inversion. Those. Subject to its definite additional loads: go through it, grow on it the garden or even use as an open terrace. Like here:
In addition, at a certain coal single Roof Sends air flow in the right direction, capturing precipitation and reducing them. Remember this!
In a functional plan, one-piece roofs are divided into three main types: ventilated, non-ventilated and combined. Consider each option in more detail.
Such are equipped in buildings closed type. As ventilation, it is produced by products and special emptiness between insulating layersThrough which air, passing, captures moisture droplets from the insulation and makes them out.
If such ventilation is not provided, then the moisture will remain inside the insulation (and it still falls into it, albeit little), and the insulation will begin to dance, deteriorate. And as a result, it will be gradually all the roofing pie.
But at the ventilated one scope roof There are limitations. Thus, the angle of inclination can only be between 5% to 20%, otherwise the air will not be able to effectively pass through the production.
This type of single-sided roof is the advantage of building on terraces and housekeeping. Usually the angle of such a roof is in the range of only 3-6%, although there are no restrictions on it.
Ventilation in such roofs is not needed because the air indoors without walls or with often open wide doors (as in the case of a garage) and heels well fans, carrying out any water vapor to the street. Which, by the way, and themselves are especially not formed in such buildings:
Such roofs combine the device of both previous species. Here the desired bias of the roof is attached due to thermal insulation. It turns out economically, but in the winter it will have to constantly clean the snow.
But the device of such a single-sided roof is already different, because the dynamic is also added to variables and static loads. And usually everything looks like this: from the bottom of the professional flooring, on it - two layers of the insulation and good waterproofing.
The angle of a single-bed roof also depends on parameters such as the type of connection of the rafted to Mauerlat or walls. Let's deal with more details.
An angle of a single-table roof is called an angle under which the rafters and the roof slide are tilted to the horizontal plane of the ceiling. And we assume seriously to this scheme if you want to provide your roof the correct mechanical strength:
The angle of inclination of the skates is measured as a percentage and degrees. But, if with degrees even more or less understandable (thanks to the school course of geometry), what is interest? Interest is the ratio of the difference in the height of the skate and the cornice to the horizontal of the skate, multiplied by 100.
There is another interesting point: many architects specifically calculate the angle single Roof So that it was equal to the angle of elevation of the sun in a given locality in the middle of spring. Then you can calculate to the millimeter when and what a shadow will be important for planning the terraces in front of the house and other resting places.
The modern roofing materials are also their requirements for the minimum and maximum angle of inclination of a single-table roof:
Of course, the less angle, the more cheaper materials you can apply: rubkeroid, professional flooring and similar to it.
You will be surprised, but specifically for little roofs today are developing the same types of roofing, which is commonly used when tilting at least 30 °. What for? Such is a fashion in Germany, which reached us: a single roof is almost canopy, and the roof is stylish. But how? Just manufacturers improve the quality of locks, make more area Adopt and thoroughly thinking over dirt protection. That's all tricks.
And from the chosen angle of inclination of the roof and planned on its loads, we are determined with the type of fastening rafted to the walls. So, all such species are three: hanging rafal, wean and sliding.
Hanging rafters are the only option when the connection must be tough, but for the rafted between the side supports there is no possibility to make support.
Simply put, you only have external bearing wallsand no partitions inside. For example, this is a rather complicated rafter system, and it is necessary to approach its construction with responsibility. The whole problem in large spans and pressure, which turns out to be on the walls:
Or as in this project:
Here, the whole roof gives a minimum of three supports: two outer walls And one inner. And the rafters themselves are tight here, with a cross section of at least 5x5 cm of bars and 5x15 cm of rafter feet.
In this rafter system, as one of the supports serves as a log in a skate. And for connecting to it, such special elements as "sliding" are used. These are metal elements that help the rafter during the shrinkage of the walls a little move forward to avoid cracks. Very little! And thanks to this device, the roof easily transfers even a fairly tangible shrink shrink, without any damage.
The essence is simple: the more in the harrowing system of the nodes, the more flexible and stronger. Moreover, a single-povered roof is able to withstand the weight of the roofing and snow, and at the same time do not break. But there are rapid systems where the connection is generally static:
Here are the three most popular ways to accurately calculate the desired height of the future roof.
A single roof has a view of a rectangular triangle. The length of the rafter foot in this triangle is hypotenuse. And how do you remember from the school year of geometry, the hypotenuse length is equal to the root of the square of the cathets.
Another option for calculating the length of the rafter feet is:
In this case, B \u003d a * TGY, where y is the angle of inclination of the roof, and the length of the skate is calculated as follows:
X \u003d a / sin y
In fact, all this is not difficult - just substitute the desired values, and you will get all the parameters of the future roof.
Calculated? And now we turn to the construction of the roof itself:
We hope that you understand everything easily!
The roof of the structure is the most different shape. And the bias under which the roof is performed, mainly depends on the appearance, but from practicality and some requirements. Since it depends on the severity or the same plane, how strong will be durable and how correctly it will perform its functions. Based on all this, the slope is calculated by taking into account all the important points.
Builders, as a rule, this value (the angle of the slope of the skate with respect to the horizon) is measured in degrees or percentages. In order to obtain the most accurate data, measuring instruments used in geodesy are used. I clarify, zero degrees - the roof is completely smooth, and if the value of the angle is above - the roof is acutelyugon. The angle of the scope roof is often varied from eleven degrees to forty-five. During the construction, it is necessary to conduct calculations of how cool there should be a slope. For this purpose, you must first consider such moments.
It is worth considering such a moment as the presence of either the absence of a strong wind where you live. If it is present, then choose a pointed roof is not appropriate. After all, due to the fact that the roof with a sharp slope has a high sailboat, it has a devastating effect of the impact of the wind. In this case, it is better to stop your choice on a closer surface of the roof (it is better that the slope of the skate is as small as possible for your security), and the rafters use reliable, reinforced. Of course, the construction will be more expensive, but the roof will be more protected from such a factor as the wind. Although during the construction of the roof of the house, it is necessary to take into account not only the power of the wind, but also where it blows. Thus, for a metal tile roof it will be better if the wind is directed directly into the plane of the sheets. And since the wind will be directed into the ends, then there is a possibility that the roof sheets will be off and bent. Therefore, we must take into account the main direction of the wind in order to turn the roofing raft according to this.
If in winter there is a lot of snow in your area, then the roof should be done at least with a slope of forty-five degrees (permissible and more, if only no less). This is done so that the snow masses sculpted down, otherwise snow deposits on the roof, which can deform the coating. And in the event that the roof is performed under the necessary angle (at least forty-five degrees), then you can not worry about what needs to be strengthened, since there is no need for this. As, in principle, about the system that will delay the snow masses. But the wind load for such a roof is higher. For this reason, the final decision on the choice of roof is adopted with all weather conditions.
It is worth paying attention to the fact that in addition to the snow masses, rain, hail, the sun will check your roof from time to time. If you live in a place where the sun prevails, and precipitation for the whole year is insignificant, you can stop your choice and on a flat roof with the smallest slope.
An important moment: even though the roof is flat, it needs a slope. So, for this type of roof, a slope of one degree is needed or 1.7 percent.
The material used for the roof is like smooth and rough. With a rough surface, the liquid will go worse, as well as linger on it (snow masses too). With a smooth coating, the liquid will leave in the blink of an eye. There are other building parameters that should be considered when choosing a roof inclination.
The minimum angle of the linker of the roof row with a metal tire should be fifteen degrees (there are manufacturers of this type of coating that allow an angle of fourteen degrees). With minor inclons, some manufacturers advise you to impregnate every sheet of sheets with a sealant and moisture-resistant composition, which is not afraid of frosts. But in practice it was observed that the most snow masses are glued on the root with a metal trooper, the slope of which is from twenty to thirty-five degrees. Overhairs, minimal tilt is not welcome, as the fluid will not have time to leave the roof, thus putting pressure on it, and flowing under the joints during significant torrential rains. This situation can be fixed a bit by selecting tiles with higher waves.
This type of roofing requires a slope at least twelve degrees, which is less than for metal tile. Minor corners of the slope need a two-wave adhesion, and the corners of fifteen degrees - in the allen in twenty centimeters. The width of the frame becomes higher with increasing inclination. In practical flat roof A solid framework is used, because when the large volumes of snow masses, the roof may be caught.
Frame under this species Coatings are a solid base made of plywood sheets or an OSP. The minimum slope slope for flexible tile should be at least eleven degrees.
For this soft coating, just two degrees. For a very minor inclination, it is necessary to increase the number of roof layers (for for a flat surface is of great importance to good water resistance). If you are going to use only one or two layers, you need to perform a slope at least than fifteen degrees.
For ONDulin, a slope is needed at least eleven degrees. However, when using an erector on the roof with a minor inclination there is one important condition: it is necessary to use a solid type frame.
This type of material needs the slope of the slope of twenty-two degrees. In addition, it is necessary to take a closer to the calculation of the rafter system, because the load on the material that has considerable weight will be considerable. And if you take into account the accumulation of snow masses or a strong squall, it will generally work out that it is necessary to improve the requirements for the roof support. It is still worth considering that if you reduce the slope, it will lead to an increased load on the support.
Let us discuss the correctness of the calculation of the angle of the roof. To begin with, we note that the slope can be measured both degrees and percentages. Sometimes inexperienced builders can confuse them among themselves, which leads to the layout in the calculations. And these values \u200b\u200bare completely not equal to each other. Although, observing attentiveness and using special tables, you can easily translate the values.
The ratio of degrees and percent in the roof slope
| Degrees, 0. | Interest,% | Degrees, 0. | Interest,% | Degrees, 0. | Interest,% |
|---|---|---|---|---|---|
| 1 | 1,7 | 16 | 28,7 | 31 | 60,0 |
| 2 | 3,5 | 17 | 30,5 | 32 | 62,4 |
| 3 | 5,2 | 18 | 32,5 | 33 | 64,9 |
| 4 | 7,0 | 19 | 34,4 | 34 | 67,4 |
| 5 | 8,7 | 20 | 36,4 | 35 | 70,0 |
| 6 | 10,5 | 21 | 38,4 | 36 | 72,6 |
| 7 | 12,3 | 22 | 40,4 | 37 | 75,4 |
| 8 | 14,1 | 23 | 42,4 | 38 | 78,9 |
| 9 | 15,8 | 24 | 44,5 | 39 | 80,9 |
| 10 | 17,6 | 25 | 46,6 | 40 | 83,9 |
| 11 | 19,3 | 26 | 48,7 | 41 | 86,0 |
| 12 | 21,1 | 27 | 50,9 | 42 | 90,0 |
| 13 | 23,0 | 28 | 53,1 | 43 | 93,0 |
| 14 | 24,9 | 29 | 55,4 | 44 | 96,5 |
| 15 | 26,8 | 30 | 57,7 | 45 | 100 |
With the help of changing the position of the rope, relative to the plank, we are trying to achieve the required inclination. For which sometimes measured the size of the angle from the wall. When the required result is achieved, make the mark on the bar. We heat this part, we produce a sample for the skate supports. When there are no need in the supports, then on the ends of the roof, calculate the height of the joint of the pair of rafters, for which they fix the rails with a stretched rope.
The bias of the roof is one of of the most important parameters When designing the roof, along with the choice and calculation of the rafting system, the calculation of the insulation and the roofing coating.
It depends on the roof effective work, and the parameter is calculated depending on the region for placing the structure, the purpose of the attic space and the type of roofing material.
Before you begin to draw up a plan of a future design, you must know about the parameters of the skates everything you need to carry out competent installation and increase the service life of the roof.
The bias of the roof is the magnitude of the slope relative to the level of the horizon. This indicator is measured in degrees in practice, but in regulatory documents It may be indicated as a percentage, as, for example, in SNIVA II-26-76 "Roofs".
The inclination of the roof in percent is very different from the values \u200b\u200bin degrees, for example, 1 degree \u003d 1.7%, and 31 degrees will already be 60%, so such relations are important to know not to be mistaken during the calculations.
For the designed roofs, the calculation of the inclination value is relevant, but at the design of the finished rafter system, you can use a special device - a tilter that will help determine the angle.
In the case of the finished design from the rafted, the knowledge of the angle is necessary to calculate the coating material.
The magnitude of the slope is dependent on the following parameters:
Rockbridge of the skates implies work on the creation of inclination flat roofs, devices on them skates, endands and smoking and fronon arrangements.
Due to such actions, a single-table roof is getting rid of the problems with precipitation and garbage on the surface.
The minimum value of inclination for flat skates is considered one and a half percent. With this indicator, not all kinds of roofing materials will be suitable.
At the same time, the skates are necessarily equipped with a wastewater system for effective removal precipitation.
The lowerflower is better to check before mounting the skates on the ground, enhancing the desired angle of inclination in a small element of the skate.
It is watered with water, and if the liquid is effectively passed to the catchment, then the selected tilt can be considered sufficient.
When developing the design of the future roof, it is necessary to clearly represent how the roof will look. Accordingly, already at this stage you need to decide which roofing material will be used.
It is worth noting the connection of the roof slope with the amount insulating materials. For example, the smaller the angle of the skates, the more it will be necessary to lay the layers of waterproofing, as water with a gentle roof will go slower.
In the roofs with a steep angle, an increased wind load will be created, so this also needs to be taken into account when calculating the rafting system and choosing a roofing material.
According to its physical, technical and assembly properties, materials for laying design can be divided into the following subgroups:
For skates from bituminous rolled materials, certain actions are made against the location of the base.
The laying of slate and ceramic tiles is possible with a smaller slope, but with the provision of due waterproofing.
To correctly define an angle of future skates, you need to competently approach the load on the truck system. These loads include the weight of the construction erected and possible loads from the wind and precipitation.
The calculation of the decoration of the roof can be made both independently and using the calculator.
For independent calculation First of all, it is necessary to know the height of the skate run from the cornese part of the roof and the length of the attachment.
The mint is the distance of the lower horizontal part of the slope from the angle to the projection of the upper point of the roof to the cornisic part.
The slope is calculated in degrees or percentages and is indicated by the Latin letter "I". The calculation of the angle of the skate in the formula looks like this:
i \u003d H / L, where H is the height of the roof, and L is the length of the attachment.
This calculation will show what roofing material You can use the existing slope value.
The calculation of snow loads is determined by the map and depends on the placement region. The main task of such a calculation is to take into account the projected tilt of the roof.
For accounting indicator requires correction factors:
To determine the snow load, the value of the region in the card is multiplied by the coefficient.
For example, with an angle of inclination of the roof of 45 degrees in Moscow, the calculation will look like this: on the map is the third zone with an average load of 180 kg / m². This value is multiplied by 0.7, it turns out 126 kg / m².
Wind load is more unpredictable, and a wind load card will be needed for its calculation.
For example, calculating the load for one-storey house In the private sector of the Moscow region, you need to multiply the average load on the map to the corrective coefficient for houses below 5 meters.
It looks like this: 32 kg / m² * 0.5 \u003d 16 kg / m². The coefficient of the aerodynamic component of the wind is added to this value.
Common load on the rafter system should not exceed 300 kg / m², as a result of which, if necessary, the bias change or choose another roofing material.
It can be concluded that the calculation of the roof slope with all loads is a difficult task, which is often for only experienced masters.
Such a calculation will affect the reliability of the roof and the safety of being under it, therefore it is necessary to approach this process with responsibility and mind.
