Metal tiles are almost identical in appearance to natural ceramic tiles.
However, it is made from profiled metal sheet with protective polymer coating.
This feature greatly reduces the cost of this roofing material, simplifies its installation and maintenance.
In addition, there is a wide range of different accessories, including roof ridges, which makes it easy implement even complex projects for roof installation.
The roof ridge made of metal tiles is the most upper roof structure, mounted along the line of intersection of its slopes. Its purpose is to perform several functions:
- Waterproofing the joint roof slopes . Since some space inevitably remains on the converging slopes of the roof between the top sheets of metal tiles, this place needs to be protected from moisture penetration. The curved shape of the ridge allows you to cover the gap between the slopes, thereby preventing moisture from getting inside.
- . When the air temperature changes from reverse side metal tiles, condensation may form. This moisture can lead to both corrosion of the metal of the roofing material itself and wetness of the material located below. If there is a ridge, the condensed water has the opportunity to evaporate and be removed along with the flow of air heated under the metal.
- Decor. Roofing ridges are available in a variety of shapes and colors, which allows them to be used as decorative elements. In addition, the presence of a ridge gives the roof a finished look.
Structurally, the ridge is metal strip, which is given a certain profile. Like metal tiles, ridge elements have protective covering from polymer materials or paint.
They can be painted either to match the stingrays or in shades that contrast with them. There is a flange along the edges of the ridge, which simplifies the joint with the sheets of the main roofing covering.
The kit, in addition to the ridge strip itself, includes the following:
- side caps to prevent debris from getting under the roof;
- fastenings;
- sealing washers to ensure .
On the rooftops complex shape Additionally, joining elements are used that allow hermetically joining several lines of the upper edges of the roof slopes.
Variety of shapes
The shape of the ridge profile does not have a noticeable effect on the performance of the roof. Therefore, when choosing the most optimal type, they focus more on 
design requirements.
On sale you can find ridge strips of several species:
- rectangular. Due to the simplicity of the form and the least consumption of material, they are characterized by the lowest cost. Convenient for installation on any roof and no need to use end caps;
- semicircular ridge for metal tiles. The main part of such a skate has a semicircular shape, the flanges are flat. After installation, large holes remain at the ends, which requires the use of plugs;
- polygonal. They differ from semicircular ones only in their profile, composed of three, five or more planes;
- round ridge of metal tiles;
- narrow decorative. Used on hipped roofs, where the angle between the connecting slopes is minimal;
- Y and T-shaped. Used at the joints of adjacent roofs.
Types of ridge strips
How to choose a seal for a ridge and how to seal it correctly
Installing a seal between the metal tile and the ridge allows you to reliably seal the joint without the risk of damaging the material. There are two types of seal under the ridge of metal tiles:
- special ridge seal, the tape of which repeats the shape of a sheet of metal tiles. Made from polyurethane foam or polyethylene foam. It has through holes for ventilation;
- universal seal. It has rectangular section, but due to the elasticity of the material (polyurethane foam) it can be used with metal tiles of any profile. When purchasing this seal, you need to check whether its height corresponds to the depth of the metal tile relief.
How to choose a seal for the ridge of metal tiles? When choosing a seal, you should pay attention to the technology of its fastening. Some samples are equipped with a self-adhesive strip, and some require additional adhesive, purchased separately.
NOTE!
It is unacceptable to use porous materials not intended for these purposes as a sealant. They will accumulate moisture and lead to roof corrosion.
When sealing a seam, individual sealant strips are laid end-to-end, without overlapping each other.
Sectional view of the device
How to calculate the height and length of the ridge strip for metal tiles
The height of the plank depends on the angle at which the roof slopes meet. For gable roofs is typical between slopes, so the height of the ridge strip shelves should be taken no less than 15 cm.
This will ensure reliable waterproofing. On hipped roofs, the joint angle is smaller and it is permissible to use ridge strips of lower height.
The length of the ridge is selected equal to the length of the roof. However, it is worth considering that if the length of one plank is not enough, adjacent planks are joined with an overlap of 10 cm.
Now let's talk about how to attach a ridge to a metal tile.
Installation of a ridge on a metal tile
Installation of a ridge on a metal tile is carried out in several stages:
- Check straightness the upper sections of the roof slopes. Deviation from a straight line should not exceed 20 mm.
- In ridge grooves seal is glued.
- The ridge strip is placed at the junction of the slopes flush with one of the side cuts.
- The symmetry of the ridge overlap is checked. Fastening the ridge of the metal tile begins from the center; it must coincide with the central axis of the roof, marked in advance with a stretched cord. It is highly desirable at this stage to have an assistant controlling the position of the skate from the opposite end.
- The end of the ridge is screwed to the metal tile with self-tapping screws.
- Screw in the screws along the entire length of the ridge strip. The fastening points should be on the upper wave of the metal tile profile. Step - through one or two waves.
- Adjacent planks are joined with an overlap of at least 10 cm
- If necessary, side plugs are installed.
How to install a skate with your own hands
What other elements of metal tiles are there?
Having completed the installation of the ridge, proceed to the installation of the roof: valleys and snow retainers.
The endow is intended for tight joining of connecting roof slopes and its installation is almost no different from the installation of a ridge.
There can be different types, differing both in capabilities and method of attachment.
In any case, the points of their installation under the roof must be equipped with additional stiffening ribs - bars.
Installing a ridge strip yourself will not cause serious difficulties if its dimensions and shape have been selected correctly. In addition, it is extremely undesirable to neglect the quality of the sealing tape, the properties of which determine the service life of both the ridge itself and the entire roof as a whole.
Additional elements
Useful video
Installing a ridge for metal tiles with your own hands:
- This best option construction of a reliable and durable roof. The design of such a roof involves the use of metal tile sheets and additional accessories. The ridge for metal tiles is an integral part of the roof, which provides normal conditions operation and is the main ventilation duct the entire roof structure. It copes with this task perfectly, allowing all moisture to pass through from the under-roof space and retaining debris and dust from the street.
Types and design of ridge
Another important function is decorative design junction points of the slopes. The ridge of the metal tile must have a color that matches the main sheets of roofing material. The shape of the ridge should provide an aesthetic perception of the roof and be harmoniously combined with the configuration of the main roofing material. Due to various types roofing devices, there are several varieties:
Ridge device for metal tiles
Skates for metal tiles consist of the following components:
- ridge strip for ventilation;
- ridge seal.
The seal under the ridge on metal tiles performs one of the most important functions - it protects inner space roofs from getting hit atmospheric precipitation, dust and debris. If it is deformed, roof leaks cannot be avoided, which will negatively affect its operation and general condition. Quite often, the cause of such problems is poor-quality roof installation, which was carried out in violation of construction technology or using deliberately low-quality materials. For this reason, it is not recommended to save on purchasing a sealant, because this can reduce the service life of the heat-insulating layer of the material and rafter system. There are several types of ridge seals on the market today.:
- universal;
- self-expanding;
- profile.
The profile seal is made of foamed polyethylene, which does not allow moisture to pass through, but allows air to pass through perfectly, which makes it possible to use it for a roof ventilation system. Characteristic feature profile seal is to repeat the configuration of the roof shape, which ensures good reliability sealing.
Universal seals are made of polyurethane film, which acts as a regular filter from dust and debris, but does not prevent air from penetrating into the under-roof area. The universal seal is absolutely harmless to humans and has a self-adhesive base that securely attaches it to any surface. In addition, the universal seal does not support combustion, which significantly expands the scope of its application.
The self-expanding seal is made of polyurethane foam impregnated with a polymer substance (in most cases it is acrylic). One of the main purposes of a ridge for metal tiles is to cover the upper edges of sheets of roofing material and securely fasten the roof slopes together.
Please note that it is not recommended to attach the ridge under metal tiles with a width of less than 15 centimeters, as this will cause precipitation to enter the attic.
Skate size calculation
When building a roof, the dimensions of the ridge of metal tiles are calculated using a special formula. The height of the ridge depends on the angle of the roof. There is a special table of coefficients that shows the relationship between the roof slope and a special correction factor for calculating the height of the ridge when installing the roof. The formula for calculation is as follows:
where H is the height of the ridge;
B – width of the house;
K is the coefficient depending on the roof slope, its value is selected from a special table presented below.
An example of calculating the height of a ridge
Building width = 8 meters;
Roof slope = 40°.
Let's calculate the height of the ridge for a metal roof:
H=0.5×8×0.86=3.44 meters.
For a ridge with a flanged edge, reinforced fastening should be used, which is associated with the danger of it being torn off by strong gusts of wind. Before starting construction, you should purchase a set of ridges for metal tiles, which will be enough to cover the entire length of the roof with an overlap of at least 5 centimeters.
Calculation of the number of ridge strips
The number of ridge strips is calculated using the following formula:
N=L slopes ÷(L planks – 10);
where N is the number of ridge strips, pcs;
L slopes – length of slopes, mm;
L strips – standard length of the ridge strip, mm;
10 – overlap length in mm.
By correctly calculating the number of ridge strips, you can correctly plan your roof construction budget in order to optimize all costs in advance.
Installation materials
Immediately before work on installing the ridge on the roof, prepare the entire necessary tool, fastening and safety equipment:
- self-tapping screws with rubber gasket;
- ladder and insurance;
- mounting belt;
- screwdriver
The sequence of installing a ridge on the roof
At least two people are involved to perform installation work. The ridge is installed on the metal tile in the following sequence:
If this is your first time constructing a roof, then be sure to watch the video tutorials first. This will provide a better understanding of the basic installation techniques.
Roof ventilation
Effective ventilation of the under-roof space is carried out using a ridge. This issue is especially relevant for a roof with a layer of insulation that negatively tolerates high humidity. For getting ridge ventilation the following type of roofing device is used:
- Upon completion of the installation of the rafter system, the waterproofing film is attached transversely to the rafters. In this case, an overlap of at least 15 cm wide is left on the bottom side.
- The seams of the waterproofing film are taped with a special connecting tape.
- A sheathing and a counter-lattice are installed on top of the rafter system.
- Metal tiles are installed on the sheathing, where a waterproofing film is pre-fixed, protecting the roof structure from water leaks.
- At the bottom of the cornice they arrange ventilation gaps that provide air flow.
- Using a counter-lattice, one achieves the gap under the slope necessary for roof ventilation.
- There are outlets under the ridge through which wet air comes out.
The lack of ventilation of the space between the roofing material and the film will contribute to the accumulation of moisture there, the development of mold and the gradual destruction of the sheathing and metal tiles.
Metal roofs have become increasingly popular recently. Proper design and calculation of a metal tile roof allows you to obtain the optimal price-quality ratio, which is confirmed by the many years of operation of these roofs in our country. To install roofs on your own, you need to know a whole set of rules and be able to apply them in practice. Learning from videos has many benefits that can ensure better learning and performance. a clear example doing the work. For this reason, video lessons are now used in many areas of personnel training.
The ridge for metal tiles is an integral element metal roofing. It reliably protects attic space and rafter system from external influence(rain, snow and various debris), and also performs a ventilation function. Installing the ridge is not particularly difficult, so you can do the upcoming work yourself, saving a certain amount on calling a construction team. The main thing is to learn some of the subtleties of installing a metal roof ridge and strictly follow all the instructions and recommendations.
Types of ridges for metal roofs
The ridge strip not only performs a protective function, but is also an important decorative element, that is, the aesthetic appearance of the roof depends on its correct installation. Skates are made in various colors and textures, so you can easily choose best option for a specific case. And in order for the future design to look harmonious, it is recommended to buy such planks in the same store where the metal tiles were purchased.
On the market today building materials you can find the following types of skates for metal tiles (Fig. 1):
Figure 1. Types of ridge strips for roofs.
- Semicircular. Often used to protect joints on gable and hipped roofs. To prevent moisture and debris from entering the under-roof space, their ends are equipped with special plugs.
- Rectangular. They can be installed on any type of roof. They have a lower cost than the first type and do not require the installation of plugs.
- Narrow decorative. They have a narrow profile, so their main function is not protection, but decoration. Decorative strips have found their application in the arrangement of hipped roofs, spiers and gazebos.
- T- and Y-shaped. Used to connect rectangular skates together.
When buying ridges for a metal roof, you need to pay attention to their width, which should be at least 15 cm. Otherwise, in a strong wind, moisture and debris will get under them. When choosing skates, it is recommended to give preference to products with edging. In this case, they will have increased rigidity and strength.
When purchasing a ridge for metal tiles, its dimensions are calculated using a special formula: H = 0.5xBxk, where H is the height of the ridge, B is the width of the building being covered, k is the roof slope coefficient. The slope coefficient is presented in the table (Fig. 2).
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Skate design for metal tiles
Main structural elements skates for metal tiles are:
Figure 2. Slope coefficient.
- ventilation strip;
- ventilation tape;
- seal;
- fasteners.
Such a device for the roof ridge made of metal tiles allows you to securely fasten the product to metal sheets and ensure its high functionality. One of the most important elements drainage system the roof is a sealant. It is this that protects the rafter system and attic space from precipitation and various debris. The seal is mounted between the ridge strip and metal sheets (Fig. 3).
There are several types of seals:
- Profile. Made from foamed polyethylene. This material characterized by excellent moisture resistance and breathability, due to which metal roofing retains natural ventilation air. Another advantage of polyethylene is its ability to mold to the shape of roofing sheets, thereby providing excellent waterproofing.
- Universal. Made from polyurethane film. Reliably protects the interior from dust and moisture.
- Self-expanding. Made from acrylic-impregnated polyurethane foam. Attached to the base using self-adhesive film.
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Do-it-yourself installation of a ridge for a metal roof
Before installing the ridge on the metal tile, you need to prepare the following tools and materials:
Figure 3. Seal installation.
- screwdriver;
- metal scissors;
- building level;
- roulette;
- ladder;
- safety cord;
- fasteners.
Installation of the metal tile ridge is the final stage of roofing work, that is, it is performed after the entire roof is covered with metal sheets.
The first step is to make sure that the roof slopes intersect in a straight line. The maximum permissible deviation is 2 cm. Large irregularities will negatively affect the appearance of the skate and its service life.
Fulfill installation work It is better with two assistants, since you will often have to move along the upper section of the roof, and this is quite difficult, so your hands should be free.
Sitting on the ladder, ask your assistants to give you two opposite corners, then install the ridge on the edge of the roof so that it coincides with the outer sheets.
Check the evenness of the installation using a building level and your assistants. If everything is laid correctly, use a screwdriver to fasten outer part skate to roofing sheets. The following items are installed in the same way. After external elements ridge is installed, secure the internal parts.
Fastening elements (screws) should be screwed in at such a pitch that the ridge does not make popping sounds even in strong winds.
The screws are screwed into the crest of the “wave” of the profiled sheet. In this case, it is recommended to install sealing gaskets, which not only increase the adhesion of the connecting elements, but also absorb all temperature deformations. After attaching the last element, you need to make sure that the ridge is even. If no deviations are visible, the work can be considered completed.
Having figured out how to attach the ridge to the metal tile, you can safely begin installation. At the same time, do not forget that high-altitude work are prone to injury, so do not neglect safety precautions when using a safety cord, ladder and other devices.
A roof covered with metal tiles is a fairly common option in modern private construction. After all, this material is durable, attractive in design, affordable price, high reliability and ease of installation. Such qualities make sheet metal tiles practically the main type of covering, which today is chosen for flooring on industrial facilities, private residences, for covering roofs on garages, as well as on many other commercial and residential buildings. However, in addition to the tiles themselves, users must purchase a number of components for installation that allow them not only to give the roof a complete, presentable look, but also to make it more resistant to weather conditions, much more durable, or as functional as possible. It is these elements that include the roof ridge, that is, the final part of the entire roofing system. There are several types of roof ridge made of metal tiles, distinguished by configuration and mounting option. It is worth considering in detail what types of ridge elements there are and what determines the choice of a particular product.
Types of roof ridge
In the design of a roofing system, a ridge is a horizontal element located at the upper junction of two adjacent roof slopes. Moreover, it can be part of the rafter system, but also in the form of a separate additional element. It is worth keeping in mind that not all roofs have such a part. For example, for roofs of such types as domed, hipped or bulbous, a roof ridge is not required, since the slopes in this case are connected at a single top point, and not in a straight line. It is also important to know that depending on the type of roof it may differ required amount skates In particular, for a gable roof only one such element is sufficient, and for roofing systems more complex design you will already need two or more products. 
The ridge for metal tiles is made from the same material as the roofing itself. This is thin sheet metal coated with a layer of polymer. It is worth selecting this additional element with characteristics identical to the main flooring. In many ways, it is the horse that provides suitable conditions operation, since it allows you to organize full ventilation, that is, through the formed channel, moist air comes out of the under-roof space, but at the same time street dust, large debris, precipitation, and insects cannot get inside. Modern construction market offers a wide variety of skate models, differing in form and functionality. The following varieties are considered the most popular:
- simple or angular, that is, in the shape of an open triangle;
- semicircular;
- raised;
- conical;
- rib;
- flat or U-shaped.
- universal;
- profile;
- self-expanding.
Each variety has its own characteristics, so before choosing a specific option, it is worth considering in detail all types of roofing ridges. The most popular types are triangular, flat and semicircular. 
Characteristics of a semicircular skate
The peculiarity of this type of ridge is that it perfectly complements a roof made of metal tiles, making it almost identical to a roof made on the basis of natural tiles. The semicircular ridge for metal tiles is fixed at the top point, at the junction of two opposite slopes. To prevent debris or precipitation from entering the end part, special plugs are provided. Most often, a product of this type is mounted on hip roofs, in which the junctions of the slopes are clearly visible from the ground. That is, in in this case the ridge is not just a connecting and protective element for slopes, but also performs decorative function. The standard length of the element is 2 m. When choosing such products, users should know that the semicircular ridge of metal tiles will have a higher cost than other analogues. This is due to the fact that more metal is required for its manufacture, while the skate itself is considered the most durable and reliable. To ensure that the color of the ridge element matches the tone of the roofing, it is recommended to order the strip along with the metal tiles from the same company. 
Flat or U-shaped ridge
Can be used for roofing systems itself different types. Its cost is somewhat less than a semicircular product, since a flat or, as it is also called, a figured skate is easier to produce and less material is required for it. It is also worth keeping in mind that such a ridge for metal tiles is not equipped with plugs, that is, there is no need for them. 
Triangular roof ridge
The simplest version of the skate looks like it is bent at an angle of 90 degrees. Standard height each side is 160-200 mm, and the length varies from 1.6 to 2 m. The product is low cost, but also low decorative. Most often, it is mounted on roofs of a simple configuration.
As a rule, when purchasing a ridge strip, users also purchase all the necessary components. The standard kit includes fasteners, sealing washers, plugs, and so on; the specific kit may vary depending on the type of skate. If the manufacturer does not provide the ridge and fasteners in one set, it is necessary to select parts of the same type as the roofing covering and the ridge itself. However, in addition to the listed components, it is also worth taking care of purchasing products such as a seal. We should talk in more detail about how to attach a ridge to a metal tile and, first of all, it is important to understand what types of seals are available and how to choose them. 
Roof ridge seals
A ridge seal is a tape product that is installed under the ridge strip and prevents moisture, dust or insects from entering the under-roof space. Since this element must perform protective functions for many years and under the most different conditions, then you should choose it as responsibly as possible. The ridge seal must have high quality, as well as the appropriate configuration for a particular skate. Today there are three main types of special seals on the market:
As you can understand from the names, universal products are suitable for skates of any configuration. The product is made on the basis of polyurethane film and has a self-adhesive base, that is, to install it you only need to remove the protective layer and press the seal tightly to the installation site. Another special feature of the product is that it does not support combustion and can be attached to almost any base. The main purpose of the universal seal is to act as a filter against debris, insects and dust. 
Profile seals are made of foamed polyethylene. Their main feature is that they are developed for a specific metal tile profile, that is, for each type of wave, its own seal is produced, which is not suitable for metal tiles with a different profile. Therefore, when purchasing, it is important to pay attention to this moment. In general, such a seal does an excellent job of protecting the under-roof space from moisture, while it allows air to pass through, which means it can become one of the elements of the ventilation system. 
Self-expanding seals are made on the basis of polyurethane foam impregnated with acrylic or other types of polymers. The peculiarity of the product is that after installation the ridge tape increases in size, covering all existing voids. This property allows you to reliably seal all the cracks between the ridge strip and the metal tile-based coating, resulting in the formation reliable protection from precipitation, dust, debris, insects and so on. 
All types of seals reliably seal the gap between the ridge and the covering, due to which the roof space is protected from moisture and dust, but at the same time air also passes through the seal material quite easily. It is worth noting that no matter what type of sealing product the user chooses, it is installed quite simply. However, depending on the production material, products may differ in price and service life, read Additional information in the material: . To secure the ridge for metal tiles according to all the rules, you must first of all calculate the ridge strip.
Calculation of the roof ridge and its installation
You can calculate the height of the ridge for a house using the formula H = 0.5 × B × K, which includes parameters such as B - the width of the house and K - a coefficient depending on. The specific value of the coefficient should be calculated using a special table. For example, with a slope of 5 degrees, this coefficient will be 0.08, and with a slope of 45 degrees, the coefficient will be 1. That is, the calculation for a house whose width is 6 m, and the planned slope angle of 35 degrees, will look like this: H=0.5x6x0.79. In this case, the height of the ridge will be equal to 2.37 m. To calculate the number of ridge strips, you should use the formula N=L s ÷(L p – 10), where L s is the length of the slope, and L p is the length of the ridge. The number indicates the size of the overlap in mm; as a rule, 10 mm is optimal for installation, but installation can also be carried out with an overlap of 5 mm. It is worth knowing that when choosing a ridge strip, it is advisable to choose a product whose upper part is at least 15 cm wide, since with a smaller parameter, the ridge will not effectively cope with the function of protection from precipitation. 
The final stage of roof construction is the installation of the ridge. A mounted ridge for metal tiles will give the roof an aesthetic appearance and prevent water from penetrating under the roofing material. Its installation is carried out with additional details ventilation. A properly fixed ridge element will provide a ventilated section of the roof with a constant exchange of air, preserving the roof elements from rotting and fungus formation.
To complete the roof installation, install the ridge. This concept has two meanings, although they are sometimes combined into one:
- The roof ridge is formed at the top point where the slopes meet.
- The roofing ridge device provides a covering for the gap formed at the junction of the roofing material. The product is usually installed from a material identical roofing. Select the ridge element to match the color of the roof, taking into account architectural style buildings.
The complete set of metal tile ridges includes special fastenings and seals. The use of seals provides a tight connection that prevents water from penetrating into the under-roof space.Metal roofing tends to form condensation due to temperature changes. Therefore, the roofing material is laid on a 50 mm raised sheathing, creating a ventilated space between the lower surface of the metal tile and the waterproofing film. A sealant must be installed on the roof under the ridge of the metal tile. This device will protect against insects and debris getting into the under-roof space. The function of the material is to preserve the roof structure, protecting the ventilated space from influence negative factors. The high chemical resistance of the sealant prevents rotting of the material and the formation of mold.
Main types of ridge strips
The roof structure of different buildings differs in shape, so the types of ridges for metal tiles may also vary:- A semicircular ridge is installed at the junction of the roof slopes, covering the ends with decorative caps. They create a finished look.
- Installation of a straight plank is carried out in all types of pitched structures, without requiring the installation of decorative plugs. It is less expensive, but inferior in beauty to its semicircular counterpart.
- The narrow bar is primarily intended for the device decorative finishing tent structures. It gives an aesthetic appearance to spiers and gazebos.
- Curved ridges of T- and Y-shaped metal tiles are used to fasten straight slats on the roof at the joints.
- End elements are used to cover the gables.
Varieties of semicircular planks
Today you can find semicircular planks of non-standard sizes on sale. So the manufacturer is trying to reduce the price of an additional element by saving metal. The non-standard strip is slightly narrowed, so in some cases its installation is not recommended. Each type has its own advantages and disadvantages:- A standard size strip creates more overlap on the metal tiles. This means that it better protects the roof joint from the penetration of rainwater and snow. It also allows you to sometimes refuse to use a seal for the sake of economy and good ventilation.
- When using a ridge ridge aero element, it will be completely covered by the side flaps of the standard element. The edges of the aero element will peek out from the narrowed strip, spoiling the appearance of the roof.
- The resulting large gaps at the joints due to mistakes can easily be covered with a standard plank. But you need to lay a seal under it to protect the ventilated space under the roof.
- A narrowed element is more profitable to buy due to its lower cost. But it overlaps the gap less with the side shelves. In any case, you will have to push a seal under such a bar. The costs of purchasing it again increase, plus ventilation under the roof worsens.
Calculation of the number of slats
Knowing the dimensions of the roof and the ridge of the metal tile, it is necessary to make simple calculations of the ridge strips installed on the roof. This can be done using the formula N=Lс.÷(Lп. – 10), where:- N – number of strips;
- Lс. – length of all roof slopes (mm);
- Lp. – length of one strip (mm);
- 10 – overlap of planks at joints (mm).
- At the very beginning, using a stretched cord, make sure that the bend of the ridge axis does not exceed 20 mm. Detected deviations are corrected.
- A sealant is attached to the grooves of the ridge elements. If you want to save money, you can lay a loose layer of glass wool.
- Two assistants on both sides of the roof lift the ridge strip. Not allowing large gap vertically, the third assistant lays the ridges of the metal tiles on the outer edge of the roof. In this case, the bar should be flush with the outer sheets.
- From the opposite side of the roof, an assistant observes that there is no distortion of the inner edge. The outer edge of the element is screwed to the roof.
- The construction cord is pulled along the edge. Aligned along the line of the cord, screw it onto the roof internal sides skates
- The remaining elements are mounted strictly along the tensioned cord. The skates on the metal tiles are fixed with screws every second wave, periodically checking that they do not flap on the roof from the wind.
The nuances of installing ridge elements
When installing roof slats, you need to pay attention to various nuances:- Flat ridges on metal tiles are mounted on the roof with an overlap of 30–50 mm. Semicircular elements are attached along the profile lines.
- The construction of a gable roof (a gable structure supported by two walls of the same height) requires a combination of the roof slope with a ridge strip model.
- Triangular and trapezoidal roofs require adjustment of the ridge strip by bending or straightening.
- For all its advantages, the seal under the ridges on metal tiles prevents good ventilation. Therefore, it is advisable to install it for a roof with a flat slope. Under roofs with a slope angle of more than 45°, you can do without a sealant.
- If it is impossible to refuse the seal, providing air to the ventilated space will help additional installation roof outlets for ventilation.
Here you can see the order of work:
Having completed the installation of the ridge, the aesthetics of the ridge rib are examined from below. Decorative caps are placed in semicircular strips. You don’t have to buy them; you can easily cut them from leftover metal. Most roofers do just that. Now roofing can be considered completed.
