How to calculate the height of making a roof. The height of the roof in the ratio to the width of the house and how to calculate the height of the skate for different types of roof. Mathematical and graphic methods

We offer a professional free calculation of the soling system of a two-tie roof using an online calculator site, 3D visualization and detailed drawings. Detailed calculations of the roof and roof, all materials, crates, rafters, Maurolat. Try the calculation of the double roof right now!
Our online calculator The rafter system will make a calculation of a double roof:
calculation of the length of the rafted double roof
quantities of rafters and steps
calculation of the area of \u200b\u200bthe two-tie roof and angle of inclination
calculation of the roof crate
the number of sheet roofing materials (for example, professional flooring, metal tile, slate)
parameters of vapor insulation and insulation

To form the calculation of the calculator of the duplex roof, you need to measure and enter the following dimensions into the corresponding windows:

The cross section (thickness x width) and step rafters depend on the angle of inclination of the roof, its form, the length of the rafter foot, the maximum of the main loads, as well as from the type and weight of the roof covering (and even to some extent from the width of the insulation). If you do not know where to take the standard parameters of rafters and crates, our article will help you. "

The calculator performs calculating materials on the roof, repulscing from the size of the roofing sheet and from the calculated value of the roof area. The number of roofing materials for the roof, boards and timber for the rafter system we advise you to buy nevertheless with a small margin, it is always better to pass the remnants of the construction store than paying a bunch of money for the delivery of a lacking pair of boards.

Be careful! From how much accurate values \u200b\u200byou will make, such a reliably online calculator will be able to calculate a batch roof.

Simplify your counts and save time, the program itself will draw plan of Solfilduscal roof And the results of the calculation of the bartal roof in the data introduced by you in the form of a duplex drawing in different angles of the review, and its interactive 3D model.

On the bookmark " 3 D. - View»You can better see your future duplex roof in a volume view. In our opinion, visualization in construction is a very necessary opportunity.

If you have a double roof with different rods in the project, you should make a calculator using a calculator twice for each slide separately.

The two-sheet roof is the most popular roofing structure, which equip private residential buildings, baths, garages and other buildings. Construction of the roof of this type is a rational solution to the issue of protecting inner premises from penetration of precipitation, wind and cold. In the process of designing a two-tie roof, the central place occupies the calculation of the height of the skate, the definition of the slope and the skate area. From these three parameters depends on the service life and the effectiveness of the overlap, so in this article we will tell, how to independently calculate the main parameters and technical specifications of the roof, without using the Calculator program.

The skate is called the highest point of the two-tie roof, a horizontal edge, which is located in the place of connecting the planes of the skates. It is mounted at the final stage of roofing work, but before installing the crate on the rafting legs. The length of the rope of the bartal roof corresponds to the length of the skate. This element of the rafter frame solves the following tasks:

The main function of the skate is to be a support for the top of the rafting legs of the roof. It binds among himself all the pairs of rafters, giving the structures the rigidity, evenly distributing the weight of the roofing material of the duplex.
Ensuring air circulation. The air clearance formed at the scene of the skate equipment protects the rafter frame from stagnation of air and reinforcement, ensures that there is all the wooden elements, due to which the life of the duplex roof increases.

Important! In the process of designing the roof, you need to choose and correctly calculate the height of the skate. If the room located under the roof arch is used as a residential, then the choice is made, based on their desired ceiling height, in other cases the calculation is performed by relying on the recommended angle of slope.

The easiest way to make calculations using a special Calculator program by entering the source data to which, you can determine the height of the skate, the area of \u200b\u200bthe rod and the underpants room.

Methods for calculating the height and roof area

Perform the calculation of the height of the skate and the area of \u200b\u200bthe double roof and the rest of the associated parameters can not using the Calculator program. This requires knowledge of elementary geometric formulas, which, we hope you did not have time to forget from school times. Alone to calculate the horse can be two simple methods:

Important! The most reliable way to perform the calculation of the height of the skate and Skate Square is a special online calculator. To take advantage of them, you need to enter the source data: the length and width of the house, the slope of the skate.

Determination of the height of the roof

The most important factors affecting the selection of the height of the skate compound relate to the natural conditions of the zone in which construction takes place. According to the construction standards, this parameter is chosen based on the following conditions:

Note! The height of the skate compound affects the useful area of \u200b\u200bthe attic room. To equip a living room under the roof, you should raise the roof at a height of at least 2.5 m, however, it will negatively affect the useful area due to low sidewalls.

Video instruction

The height of the placement of cognac is determined by the static species, its technical characteristics and architectural specificity. It is very important when drawing up a project to accurately determine the correct proportions of the structures. To achieve the best results, it is worth it to figure out how to calculate the height of the roof - about this, in fact, it will be discussed in this article.

What to navigate when choosing a skate height

The channel is a rib of a double roof, located horizontally, which is formed where the peaks of inclined planes are connected. By making calculations of the height of the skate with overestimated or low indicators, it is possible not only to spoil the architectural picture, but also to create problems that in the future will affect the process of operation of the whole house.

To better understand what the ratio of the roof should be to the house, you need to present the roof in the form of an equilateral triangle. Such execution is the most common. There are, of course, the asymmetric bilateral roofs, whose Skalov area differ. But since often the slopes of opposite sides are equal, the height of the ridge of the two-sheet roof is determined by the standard way.

The equilateral triangle is divided into two equal parts. The line that comes from the vertex of the triangle to its base is the axis of symmetry, and in our case, the height of the skate.

The effect of atmospheric phenomena

The climatic factor is the variable that it is necessary to consider when designing the roof.

For atmospheric phenomena, which will affect the height of the roof include:

Wind power. In the regions characterized by quite frequent wind gusts, it is better to build a gerier and low-pitched roofing structures of up to 10 degrees. Where the wind is restrained, the horse can be installed any height.
The number of precipitation. The precipitation is always considered the most likely threats that cause leakage, which lead to the gradual destruction of the rafting system and the entire roofing cake. For example, with the roofs under the slope of 45 degrees, there are significant precipitates morestar than with more gentle.
Snowsery volumes. In the regions where, from year to year, abundant winter precipitations fall out, it is best to build a roof with a slope greater than 45 degrees. Thus, it is possible to achieve a faster convergence of snow, which cannot be said about the roofs with a small slope, where most of the snow will have to be considered manually.

All this data can be obtained from the local meteorological service. Alternatively, they can be divided into literature in the literature on construction climatology SNiP 23-01-99 or on the available cards of the SP 20.13330.2011.

How to calculate when device attic in a double roof

The calculation of the height of the roof will also depend on whether you are going to install an attic room. If you are going, the attic space from the house will be separated by the ceiling. The attic may be residential and non-residential. The design with a residential attic, as a rule, has a broken circuit in which the rafter system will consist of two tiers.

Determining how the height should be the lip of the roof in the case of the attic, you need to calculate two values: the height of the lower segment of the roof and the height of its vertex, which opens onto the lower tier. The lower tier, often has a height of 2.0-2.03 meters.

In addition, it is necessary to take into account the growth of the highest host of the house, adding 30-40 cm to this indicator, so that in the room it is convenient and safe to move. The size of the upper part of the broken roof can be beloved, they will be determined by individual owner preferences.

The height of the skate of the attic, which will not be intended for living, will depend on the rules of fire safety.

Another option of an invisible room - with space, combined with the main box. As a rule, its location is at one height with the ceiling of the previous floor. The attic of the attic type is constructed by a bunk scheme, while Mauerlat must be laid on the walls above 1.4 meters. In the case of half the mansard, the countdown of the skate is starting from the bottom face of Mauerlat.

We make calculation based on the type of roofing material

Another factor affecting how to calculate the height of the ridge of a double roof is the type of roofing material used.

To select a suitable roofing cover, taking into account the height of the skate, you can use some rules:

The height of the slope of the scope plane is higher than the smaller the roof nodes. A large number of junctions most often causes moisture under roof, so in such cases it is very important to make the convergence of precipitation faster.
The lower the slope of your roof, the less butt joints should be present on it. It is best to cover the roof in such situations with large-grained and rolled materials.
The greater the mass of the coating, the bias of the roof should be cooler. It turns out that the higher the horse, the smaller the effort turns out to the system of rafters and overlap.

Before calculating the height of the skate, keep in mind that the roof with a high skate will be somewhat more expensive. For example, for the roof with a bias of 45º, it is one and a half times more material than for a construction with a slope of at 7-10º, and for a roof with a slope of 60º, money will be required twice as many.

As a rule, the distance of suitable tilt nodes by the manufacturers of roofing materials are indicated in the instructions. Such recommendations should be taken into account if you expect that your facility will serve as long as possible. Given the recommended bias, the width of the cornice compartments and the size of the house box, you can easily determine the height of the skate. Basically, the height of the roof relative to the width of the house has a less standard ratio. It is not less, other methods are used when planning the roofs.

To designate the angle of the skates, degrees are used, percentages or decimal fractions, including the height of the skate, and after the fraction - half of the overlapping span. The construction site is easier to use the third option. Significantly less often resorted to interest expressions, because the masters and homemade craftsmen are only confused.

Installation of rolling rafters is carried out on the already mounted skate run. This means that you need to know the height of the placement of the skate run in advance. If you know the height of the skate, you can not watch from time to time to the project. The measurement method is calculated by the center of the front wall. In this place, the vertical is fixed by a bar or helper. From the upper face of the Mauerlalat mounted on the wall of the Mauerlalat, the size we define are counted. It will be necessary to take into account at the time of the construction of the chalk system.

How to calculate the height of the roof

For the correct calculation of the height of the roof of the roof, as well as the height of the roof in relation to the height of the house it is chosen correctly, you can use one of the many calculators programs that can be easily found on the Internet. It is very simple to use them, the results of the calculations are obtained by fast and accurate.

The only minus is to check the finished results of calculations is not so easy without the possibility of a visual demonstration of the planned roof design. In addition, if you accidentally take an incorrect number in such a calculator, it will be possible to find an error only during construction. Therefore, it will be much better if you still check out all the figures and features of the design so that the minimum error in the future does not cost you significant unplanned costs.

In order to calculate the height of the roof of the roof as soon as possible, we will need trigonometry knowledge, as well as the ability to build buildings on the scale according to the scheme. You can use for this either a monitor or a simple paper sheet.

Graphic and Mathematical Methods for determining the height of the skate

Mathematical - In this case, the size calculation occurs according to the formula for determining the length of one of the sides of the rectangular triangle.
Graphic - it will be necessary to create a roof circuit on a scale.

When using a mathematical method of calculations, you need to take the formula A \u003d B × TGα, where a is the height of the skate; b - flip of flight; TGα is a bias defined by the owner of the house on the basis of technical prescriptions and recommendations of the roofing material manufacturer.

The graphic method involves obtaining sizes when crossing the center of the roof and the line of the skate, going at a certain angle from the last point of the sink of the cornice.

It is worth noting that the listed methods can determine the lifting of the roof, but not all the height of the skate. These indicators are determined by the technology of mounting the upper parts of the rafter. When using hanging rafting systems, the height of the skate will be the same. The same applies to the sleeve systems, in the case when the top of the rafter goes beyond the line of the skate run.

When the rafting legs go beyond the limits of the run, then to the height of the roof, it is necessary to add 2/3 of the thickness of the board or timber applied during the construction of the solid system. It is worth considering that the depth of the dust makes the thickness of the material less than a third.

Calculate, as a rule, does not take into account the lattice laid on the rafter. Inevitable during the construction of the roof minor deviations that can reach 5-7 cm is normal, since no negative consequences leads.

Using a practical method of settlement

Whatever the height of one-story house to the roof, determine the height of the skate can also be a practical method. It is used in the calculations of North American carpenters, the work of which is focused on the construction of low-rise frame houses. However, the dramatically, this process is practically nothing varied with the works carried out by masters in other countries.

This method has a technological feature: the mounting element of the lower heels of rafters to the base is carried out by the word. The rafters are based on the skateboard. If this condition is not compared to this condition at the stage of creating a scheme and obtaining calculations, the slope will become different, and this is better to avoid during the definition of the extreme parameter of the slope recommended by the manufacturer of the roofing material.

At the heart of the calculations, we again have an equilateral triangle, divided into two identical parts. We have a house width and a bias.

The sequence of determining the height of the skate will consist of such actions:

First, create a scaled circuit, and indicate the exact size of the house box on it. It is best if the scale is 1: 100, at which 1 cm will be 1 meter on a scale. If you are uncomfortable for any reason with such a scale, you can choose your own, more or lamb.
We define the center of the span, and it will already be stuck up a line, which is the axis of symmetry of the roof.
With the help of the transport from the corner of the house, the angle of inclination of the roof created is noting. To do this, spend a line based on the marked corner.
To determine which height will need to place the skate run board, it is necessary to rely on the data obtained as a result of the intersection of the axis of the roof symmetry with the line of slope slope.
We mark the Abris of the skate run and the rack on which the run will be based on. Their line of symmetry should coincide with the line of symmetry of the roof. To do this, it will be necessary in both directions from the axis to postpone the half colon of the skunk board and cut lines.
The bottom side of the triangle, diagonal and nearby the side side of the skate run along with the rack will indicate the triangle we defined by us, from which the vertical cathe will be equal to the height of the roof.
The rise is doing less on a third of the thickness of the boards - that is, to the depth of the words of the lower element of the rafted.
From the above-mentioned, the upwards are counting up the width of the skunk board, and stake the skoth run, after which the skate rack.
Now, according to the scale, the shafts of the rafter foot, considering that it will have drawdown on a third width due to cutting. To make work easier, parallel to the diagonal diagonals of the straight line 2/3 of the thickness of the rafter.

In other words, the height of the skate is the sum of the lifting of the roof and 2/3 of the thickness of the rafter. In the reality of ideal accuracy in any case you will not get. However, a minor error is considered to be neglected. Minor flaws are allowed for construction standards for structures of wood design, indicated in the collection of SP 64.13330.2011. The ideal miscalculation is characterized by considering physical processes on compression and crumpled of wooden elements of the system.

What is the most important in the building? Of course - the roof! This is one of the most important elements of any building. No building will be durable without it, - protection against nature phenomena both inside and outside the building. It plays a crucial role for the overall design of the house. The strength of the internal space, as well as the walls depends on the quality of the overlap. Its aesthetic species affects the overall impression of the whole building. This uses decorative elements that help strengthen the positive effect of the house.

What factors affect the aesthetic kind of roof? First, it is her form. It forms the integrity of the perception of the building from passersby. Such a construction is the responsible stage of the building of the house. Not only its appearance, but also its parameters depends on the correctness of such calculations and modeling.

Parameters for modeling:

Height. It is very important to calculate this parameter correctly. The angle of inclination should be taken into account, as well as the required number of rods used materials used for its coating when building.
Natural conditions.
Structure.
Building height.
Personal opinion of the owner at home.

Advanced and the most accurate such project as a whole need:

Complete the calculation of materials to be used for its future building.
In order to take into account the insulation materials necessary for it.
Take into account in the planning of different devices (for example, snowstores).

The calculation of the parameters depends on its shape. The height of the supporting structure depends on it. Inattention, when taking into account these parameters, can lead to a lack of functionality in the further operation of the building. For example, the height of the skate affects the total area of \u200b\u200boverlap. In this case, it should be borne in mind that the calculation of materials can be increased. Also, this parameter affects the configuration and the length of the rafted.

Types of roofs

Double.
Four-page.
Mansard.

This calculation must be done by selecting the angle of overlapping (for example, 30-50 degrees, otherwise the wind load and the accumulation of snow increases).

Scheme of calculating the height and tilt of the double roof

How to calculate the height of the skate and roof? It is necessary to divide the width of the house for 2, and then multiply to the tangent angle of inclination. Table values \u200b\u200bof tangents and calculator will use you in this and help you correctly calculate the necessary parameters.

The strength of such a form is characterized by the possibility of mounting the attic. Four-tight type has a different appearance: tent and holmova. The first species is characteristic of square-shaped houses at ideal symmetry, if you look from any angle. Such a design helps to increase the storage resistance of the wind on the roof. The second type is characteristic of characteristic "mansard" windows.

The complexity of the design of this type is also complicated by quite expensive construction materials.

Attention: it is undesirable to use this type of overlap for a private house on the ground with characteristic weather conditions, such as strong winds. Otherwise, the high angle of inclination of the roof can adversely affect the overall design of the building.

How to correctly calculate the height of the roof? Take the formula as for a duplex type. Note that the following parameters are also needed: the length of the skate and rafters. Bearing structures in this case play an important role in its calculation.

Calculation of height for the attic type

This type has the same parameters as the duplex, but the main skates at the mansard type have a break. Such a characteristic feature often gives the "broken" view of the supporting structure. Due to this, the inner area of \u200b\u200bthe premises increases. The complexity of calculating this attic type consists due to the angles of the slope of the skate. Carefully watch out to take into account all the angles of inclination of the skates. It is extremely necessary to calculate.

The principle of the golden section is also used, and experts advise it to use when these calculations. It is extremely important here so that its outline does not go beyond the circumference. This principle (golden section) helps to achieve the most aesthetic appearance of the house. By eliminating this drawback, you will get a unique and beautiful view of the building.

What is important to know for expectations and how mistakes threatens

Types and forms of modern roofs
Sking run and tilt corners
Calculations of the height of roofs of different forms
Calculation of the roof using online resources
What to take into account, starting to calculate the roof

The final stage of building any house (be it a spacious main home or a small country house) becomes the arrangement of the roof. It is she who gives the exterior a presentable and completed appearance. But at the same time performs a very important function - maintains heat, creates a cozy, most comfortable and pleasant atmosphere inside. It is this element of any structure without exaggeration called one of the most important.

What depends on the height of the structure and what takes into account, performing premonst calculations

It is especially important to know how to calculate the height of the roof for the house, and accurately understand how to make it right. That is why you need to pay for some time to study this issue. Inaccuracies made in premacent computing, lead to serious problems with which it is too difficult to cope. Often to eliminate errors have to start working on the design of the roofing.

For example, if the rods are made with a small tilt angle, such a design will cause serious harm to winter snowfalls (due to snow accumulation there is a risk that will be a roof break). It is logical to assume that you can simply make a tall horse and all the problems will be solved. But this is not the case, because too high the roof is the most vulnerable to the gusts of the wind.

the total square of the facilities;
climatic conditions (as you have already guessed, in the regions with snowy winters, sloping roofs are not recommended, optimal for warm continents);
material for the arrangement of the roof, as well as crates;
selected shape;
the height of the main building;
personal preferences and tastes of the host.

A number of other factors are largely affected by the parameters of the design, for example, direct dependence is from the layer of the laid insulation or the installation of snow concreteners. The sizes of the skate are associated with the features of the rafter system, but at the same time can increase the total area of \u200b\u200bthe roof and the number of materials required for its arrangement.

Everything described above confirms the fact that the strength of the structure, the durability of its operation, the aesthetics and harmony of the external appearance of the construction depends on the size of the roof.

What types of modern roofing structures are common

The roof type has the most direct effect on the calculation and the formulas used for it, as well as the value and, consequently, the consumption of material to be purchased for the roof arrangement.

Today, such structures are erected most often:

single one (it is preferable to use for household buildings);
double (most popular for residential buildings);
four-page. Also an excellent choice for residential buildings. Here are a variety of options: spectacular tent (the characteristic feature of which is the same size and shape of all rods) or complex hip (their feature is the participation of two triangular hips and two slopes with a break (trapezoid form));
mansard (consists of two slopes, but necessarily with a break). This break allows you to increase the area of \u200b\u200bthe attic.

Cracker and determination of rational angles of slope

For calculations of different forms of roof, this value is used as the size of the skate. Under this title is understood to be the top, horizontally located rib design, which was formed when crossing two rocks of the roof (inclined planes).

There is a horse on all types of roofs, except for tents and dome.

If design , then he is alone, if the complex - then the skates are formed from two or more. On the skate runs, during the construction of the roof, rafting legs are based on, and on the basis of which roofing material is selected for the final coating, the base of the skate is selected.

Know how to calculate the height of the roof correctly, it is necessary for the construction of a reliable and durable design, as well as to predict the preliminary costs of construction, and schedule the budget. In the calculations of the rational angle of inclination, the material is taken into account from which it was decided to lay roof: some roofing coatings can be laid at an angle of up to 90 degrees, while others are only 15 to 60 degrees.

Selecting, with what tilt of the planes to choose a roof for your home, it is necessary to take into account the functionality, the overall appearance of the resulting structures (because you want to get aesthetic structure) and climatic conditions. As practice shows, for European countries, an angle of 35-40 degrees can be called an ideal solution.

Examples of calculations that are easy to do

In principle, if we are talking about the simple structures of the roof, you will need quite a bit in order to calculate the height of the roof: a calculator and several well-known principles from the basics of geometry that are taught on the school program.

We take the basic principle of calculation from the rule that the length of one category in the rectangular triangle will be equal to the length of another if it is multiplied by a tangent angle formed with the base.

we measure the width of the structure (for example, we have a four-meter house);
we accept an angle value of 35 degrees (as recommended optimal option for European latitudes);
calculate the tangent, it is obtained for this angle of 0,7002;
4 meters * 0,7002 \u003d 2.8 meters.

If a two-tie design is selected, then in this case the height of the skate is also very simple: the width of the house can be divided into "two", and then multiply by the tangent angle formed by the slope of the skates. Consider for clarity described above how to calculate the height of the two-sheet roof on the example of a house that the width will be 10 meters . So, for computing:

we accept an angle equal to 35 degrees;
calculate tangent, it turns out 0,7002;
10 meters / 2 * 0,7002 \u003d 3.5 meters.

The most applied to date are four-minded structures, and for their calculation, you can use the same principle (formula), as for how to calculate the height of the drift of the two-tie roof, but only the width of the house is not divided into four, and four. Plus, engaged in calculations for a four-piece roof, it is important to take into account the length of the skate run directly, as well as the rafter system.

four-stranded roof height calculation

The most complex calculations accompanied the arrangement of the roof of an attic type, a characteristic feature of which can be called the presence of two slopes with a break, which on the part makes it a general appearance as if "broken". The arrangement of the lone of the roof will increase the functional area of \u200b\u200bthe attic. The calculation of the holm roof is based on the example of the calculation of the height of the duplex, but should not forget that the roof does not have one angle of inclination, but several. Before moving to settlement operations, it is necessary to decide on them. Practice shows that it is best to choose such values \u200b\u200bof the corners:

for the lower - over 40 degrees;
for the rest - less than 40 degrees, but necessarily more than 15.

To simplify the calculations, but at the same time get the most accurate result, experts prefer to use the " golden section "For this, in the drawing, the roof circuit fit into the circle. By resorting to this successful rule, it is possible to solve the question without any problems, how to correctly calculate the height of the roof, and most importantly, to avoid inaccuracies in the calculation, which in practice will lead to the fact that the general type of construction will be inesticatory, non-harmonic and simply urgent.

Where can I ask for help: online resource and consultants

If the erected roof of a complex shape, then it requires more volumetric, long-term calculations. For calculations, data on the cross section of the rafter, step between them, the magnitude of the rafter structures is used. In addition, the size of the roofing windows, chimneys, the presence of parapets and soles is taken, will necessarily need to analyze the possibility of support and endurance of the foundation.

Today, anyone who does not know how to calculate the height of the roof, to make it can, contacting the assistants, to find which you can on the Internet. It can be specialists who are ready to provide such services online, or a special Internet resource called "Calculator", in which case the site visitor enters the requested data and the system produces calculations on them.

Choosing to whom to seek help, remember that - Design is not cheat, so it does not tolerate errors and inaccuracies. The correctness of the calculations must be guaranteed. For newbies, the calculation of four-tight, hip and tent roofs are quite complex, so they are better to entrust the designer specialist with experience in this area. You can independently deal with only calculations relating to single-table structures for housekeepings and garages, or simple bounce, built to cover a small country house.

Captions of roof parameters

- This is the most important stage concerning the construction of the roof. It is his result and accuracy that affects how reliable will be a construction, how long it will last whether an attractive and harmonious appearance will have. No need to regret the time and strength to double-check the results and make sure of their accuracy. This is a guarantee that you will have the most durable house designed for many years of exploitation and ensures comfort, comfort and heat.

Accurate and correctly calculated data will help to avoid excessive costs for the purchase of materials, and this is reasonable savings in construction.