Cold roof of metal tiles

Metal roofing tiles are becoming more and more popular due to their low maintenance requirements, strength, and attractive appearance. A contemporary solution that offers effective insulation and weather protection is a cold roof composed of metal tiles. A cold roof system seeks to minimize heat gain into the building’s interior during warmer months and prevent heat loss during colder seasons, in contrast to traditional roofs, which may absorb and retain heat.

Steel and aluminum are common materials used to make metal tiles for cold roofs because they are lightweight and resistant to weathering. Because of the tight interlocking design of these tiles, a sturdy barrier against wind, rain, and snow is created. Air can flow between the roofing material and the insulation layer thanks to the cold roof design’s ventilated gap. By preventing moisture buildup and assisting in temperature regulation, this ventilation lowers the possibility of mold or rot developing inside the roof structure.

Energy efficiency is one of the main advantages of a cold roof composed of metal tiles. These roofs have the potential to gradually reduce heating and cooling expenses by efficiently controlling heat transfer. Because metal tiles are reflective, they can help keep interior spaces cooler in hot weather by reducing the amount of solar heat absorbed into the building. The layer of insulation under the tiles helps to retain warmth in colder weather, improving overall comfort and using less energy.

In order to guarantee adequate ventilation and insulation, installing metal tiles on a cold roof involves meticulous planning and experience. In addition to being long-lasting, the roofing materials are also aesthetically pleasing, coming in a variety of hues and finishes to go with various architectural designs. The lifespan of the roof can be increased and its ability to shield the building from the elements maintained with proper maintenance, such as routine inspections and cleaning of the gutters and vents.

Roofing device made of metal tiles – styling technology

Metal tile roofing is made of galvanized steel and has a profile that resembles waves to mimic the design of ceramic tiles. It is among the most widely used materials in roof construction. To enable individuals to complete roofing tasks manually, construction stores offered a wide range of supplementary materials (such as skate profiles, yendovs, cornices, and pediment planks) for building a metal tile roof. We will describe the technology used in metal tile roofing in this article.

Characteristics of the material

Metal tape, a type of roofing used to create a warm or cold roof, is made of galvanized steel painted or coated with a polymer. Steel blanks are rented cold to make it. The metal tiles’ advantages are taken into account:

  • A light weight. One square meter of metal tile weighs 5.5-6.5 kg, which allows you to styling on a rarefied crate without enhancing the rafters of the roof.
  • Long service life. High-quality metal tiles, as well as additional elements of galvanized steel, are operated for more than 20-25 years with proper maintenance and timely repair.
  • Corrosion resistance. Zinc layer, polymer coatings reliably protect steel from water exposure, because the metal tile is not corroded.
  • High bearing capacity. Thanks to a wavy profile, the metal tile has a high bearing capacity and is not deformed under the influence of intensive loads.
  • Temperature drops. Temperature changes do not affect the strength qualities, integrity of the material, therefore it is used in all climatic zones.

Crucial! Single-sided and multi-sized roofs with a slope of at least 12 degrees are advised to have a layer of metal profile applied. Roofing material and early components such as yendovs, skates, cornices or pediments, drainage components, sofita for baking cornices, lightning protection, and snow retainers will be needed for the installation of the cold roof. A warm roof’s design suggests using vapor barriers and additional insulation.

The metal sheet’s construction

Potential dimensions of metal sheets for tiles

The choice of elements

Metal tile roofs are made of multiple layers, each of which interacts with the others to improve quality and longevity. Waterproofing, a crate, and roofing make up the structure of the cold roof, while a layer of insulation and a vapor barrier make up the warm roof. Skilled artisans advise selecting roof installation materials based on the following standards:

  1. When choosing metal tiles, only 2 indicators play the role – the height of the corrugation and the thickness of the steel. The higher these indicators, the greater the strength and the bearing capacity of the roofing. The required number of sheets is calculated based on the area of ​​the slopes and the useful area of ​​the canvas.
  2. Conductive elements, such as cornice and pediment bar, are acquired depending on the footage of overhangs, taking into account the overlap 15-20 cm. They are selected to match the metal tile.
  3. Endovs are used to equip joints between slopes in multi -sized, complex structures. They are steel planks in the form of a corner with a polymer coating.
  4. The skate profile is used to equip the roof skate. Skate elements, like the yendovs, are corners with fasteners of 20-50 cm. The wider the shelves, the better the profile protects the gap between the sheets of the material from moisture penetration.

Metal tile roofing apparatus

Remember that since a warm roof only has three layers, its design is far simpler than that of a warm roof. Still, any kind of roof can use roofing components. When preparing the junction of vertical and horizontal surfaces, the location of pipe and aerator passage through the slope, and the roofing canvas, high-quality premature elements help minimize the risks of leaks.

"Homeowners can maintain durability and energy efficiency in a variety of climates with a cold roof composed of metal tiles. This roofing system helps control indoor temperatures by preventing heat loss during the winter and lowering cooling costs during the warmer months by using reflective metal tiles and making sure there is enough ventilation. Knowing the essential elements and advantages of a cold metal tile roof can enable homeowners to make decisions that improve their home’s sustainability and comfort."

Roof pie

The foundation of the roof’s strength and longevity is a skillfully constructed roofing pie made of suitable materials that offers a sealed and robust covering. Four crucial tasks are carried out by the multilayer structure of the metal profile roof design: wind protection, vapor barrier, thermal insulation, and waterproofing. The following ingredients go into making the metal tile roofing pie:

  • Vapor barrier. It protects the rafter frame from the penetration of steam saturated with moisture, from the heated rooms of the upper floor or attic. Vapor barrier – a diffuse membrane that passes the air, but does not allow water to pass, it is attached to the lower surface of the rafters with a construction stapler.
  • Thermal insulation. The insulation is mounted between the rafter legs of the roof frame. The thermal insulation layer necessary to maintain the optimal temperature regime is calculated based on climatic conditions. The insulation is not included in the design of the cold roof.
  • Waterproofing. The waterproofing material is laid on top of the rafters to protect the wooden elements of the frame from moisture from the outside. A film or membrane is used as waterproofing. The use of roofing roofing roofing.
  • Contact. Reiki 2-3 cm thick, laid along the rafters, form a counterparty that forms a ventilation gap between the layers of a roof pie.
  • Chatter. The metal tile is mounted on the lattice crate, fixed perpendicular to the rafters. This construction element is responsible for the distribution of roofing weight and giving stiffness to the slopes.

Remember that the instruction calls for the use of auxiliary components that create a sealed coating that is shielded from moisture penetration on all sides. Even in the event of a severe downpour, leaks won’t occur if a metal roofing device is installed utilizing the values, the ridge profile, and different adjacent planks.

What makes up the roof pie

The metal tile roof’s front portion

Requirements for the crate

Metal tile installation is done on a sturdy crate foundation. The wooden boards or bars that are laid with space between them so that roofing material can be attached are referred to as the crate flooring. To avoid deformation, the roofing canvas should be supported by the crate’s components in three locations: the center, on the sides, and on the sheet itself. The crate is presented with the following requirements:

  1. The instruction prescribes to mount a crate for the flooring of a metal tile with a step of 30-50 cm, depending on the length of the roofing wave.
  2. The wood for the manufacture of the crate is treated with antiseptic and fire -blocking compounds to protect against decay and increase resistance to fire.
  3. In places where the valleys are attached, the ridge profile or snow retainers, the crate is reinforced with an additional element. This is done as the valleys and other mesh -sided elements are places of accumulation of liquid and snow, so the load on the rafters above.

Experts advise that the crate’s step should be as small as possible given the slope’s gentler roof. This instruction is explained by the fact that liquid and snow do not slide off of small-slope roofs immediately; instead, they must wait, increasing the load on the rafters and the crate.

For metal tiles, use Colelite.

Statement technology

Following the completion of the crate and rafter frame assembly, the metal tile is laid. You must install the frame during dry weather to prevent getting wet on the wooden components. It is not permitted to perform high-rise work in windy conditions for security reasons. to fortify the metallic outline. The instruction that follows is as follows:

  • Waterproofing material is laid on top of the rafter legs, starting with a roofing overhang. Laying is carried out with a slight sagging so that the waterproofing does not burst under the pressure of water. The film is attached to the rafters with a stapler, the overlap between the stripes is made 10-15 cm, gluing it with adhesive tape.
  • Along the rafters directly over the waterproofing, the rails of the counterparty are installed, which form a ventilation gap necessary to protect the roofing material from condensate.
  • Then, perpendicular to the rafter legs of the frame, the crate is fixed to the counter -scheme with a step equal to the wavelength of the metal profile.
  • Perform cutting sheets of metal tile to the size of the slope. If you buy the material directly from the manufacturer, then the cut is performed in the factory, so there will be no horizontal joints between the sheets. You can cut a metal profile out of production with a circular saw, an electrician or a hacksaw for metal.
  • Start laying from the lower right edge of the slope. If laying is performed in one row, then the sheets are attached one after another. If the installation goes in 2 rows, then first they lay the extreme sheet from the bottom of the ramp, then fix the sheet above it, then 2 sheets of the first row and so on.
  • The sheet is attached to the crate using roofing self -tapping screws with rubber press -shaped, which closes the fastener from the penetration of water. The screws are screwed strictly at right angles to the surface of the roofing material, leaving a gap of 1-2 mm, so as not to deform it. To fix 1 sheet requires 10-15 screws.
  • Metal tiles when installing, ribe each other by 1 wave. The location of the sheets is fixed by the screws through the capillary groove.

Take note! To prevent material deformation and chips on the polymer coating, do not twist the self-tapping screw when fastening the metal tile. It is preferable to use a screwdriver at low speeds for this task.

Technology for material styling

Method for mounting sheets

The mounting locations’ locations

Installation of additional elements

The metal roof device does not stop when roofing material is laid. It takes time to install ridge profiles, cornice strips, and yendovs to complete the structure and make it more resilient to atmospheric moisture. The tasks are completed in the following sequence:

  1. Install the ridge profile. OP is attached to the crate along the ridge connection with roofing self -tapping screws. To protect the ends of the profile, a special seal is used from water.
  2. Fix the values ​​and other fun -sided elements. To protect the joints between the slopes and the location of the vertical surfaces, special strips are installed.
  3. Cades and pedimental overhangs are equipped with special strips protecting from moisture and wind.
  4. Sewed cornice and pedimental overhangs with sophims. These perforated panels protect the lower surface of the slope, not protected by waterproofing, from contact with water.
  5. Install a drain, snow retainers and lightning protection.

Recall! Drainage straps, junctions, skates, and endovs are not "elements of the roof" that are meant to look nice. They serve the purpose of sealing the canvas to prevent leaks. Metal tile roofs can last 20–30 years, provided the roof pie is properly equipped and auxiliary components are used.

Components for metal tile roofs that are tabbed

Video instruction

Metal terepitsa roofing technology

The popularity of metal tiles when arranging a roofing is explained by its availability and relatively simple styling technology. The roof of metal tiles has excellent operational qualities and is suitable for roofs of any configuration. Compliance with all requirements when laying such a coating guarantees a long service life. The correct device of the roof made of metal tiles will provide reliable protection of the undercarbon space and residential premises from atmospheric precipitation. Almost all manufacturers of metal tiles and roofing accessories provide customers of their products with detailed manuals and technical instructions for the correct arrangement of roofing from metal tiles. The basic principles of installation work are identical, however, there are separate recommendations for specific products. When considering the issue of a roof of a roof of metal tiles, you need to decide what the principle of its insulation will be, the roof will be cold or warm.

Cold or warm roof

The creation of a crate is one of the most important steps in setting up a metal roof. The correct equipment and installation of this design’s assembly scheme will determine the overall roof’s operational qualities, which are essentially formed by the structure of the future roof. The following sequential stages can be used to conditionally divide the configuration of the roof beneath the metal tile:

  • rafters;
  • flooring waterproofing film;
  • arrangement of the counterparty;
  • Chatter.
  • Coating with metal tiles.

Waterproofing sheets are located in horizontal order. The first segment is fixed in parallel with a cornice bar with a small overlap on it (5-10 cm). Fastening is carried out using a construction stapler. Subsequent segments are located sequentially as it moves to the roof ridge, taking into account the overlap on the previous row of 10 cm. The counterpart is the basis for the horizontal beams of the crate. It must be laid vertically on the upper part of the rafters, essentially repeating their location. Typically, the distance between the rafters, and, accordingly, the bars of the counterparty, is from 60 to 90 cm. For this, the frame element is usually used by bars of 5 cm wide and 3 cm high or also 5 cm. The instruction provides that in addition to this, at the lower base of the roof slope, two boards are fixed, the height of which should correspond to the height of the counterparty, and the width is about 10 cm. These boards will play the role of a cornice base.

  • A wooden cornice overhang is mounted directly on top of the counter. For its device, use wooden bars 5 × 5 cm or 3.2 × 10 cm. They must be treated with antiseptics for wood that protect against decay, the formation of fungus or mold. A prerequisite is to strengthen the crate in the area of ​​the skate. It is provided by the connection of the last two bars. The distance between the individual boards of the crate, or the so -called step, is determined depending on the chosen type of metal tile. Instructions for a particular roofing profile contains detailed information about this indicator, as well as the size of the step in the cornice of the roof slope. So, for the metal tile, the cascade must be ensured by the bar of the crate between the first and second bars of 250 mm, between the second and the third – 350 mm, and for the subsequent – 300 mm. When arranging a metal tile type of Monterrere, the step between the first and second collapse should be 300 mm, and between the subsequent 350 mm. A metal tile type of elite provides a step of a crate of 350 mm between the first and second row and 400 mm between subsequent. It is also worth paying attention to the fastening of the elements of the counterparty to the rafters. In this case, experts recommend between vertical bars and rafters to lay a tape from foamed polyurethane or polyethylene. Such a gasket is necessary to absorb a possible minor deformation of the rafters due to the drying of the tree and the subsequent violation of the design of the counterparty and the integrity of the waterproofing layer. All the components of the elements of the crate are fixed using nails. Experts, given the practice and personal experience, recommend using galvanized nails. Fixing the sheets of metal tiles begins with the lower right angle of the slope. The first sheet is thoroughly aligned in all directions and is fixed to the crate with only one self -tapping screw in the upper part. Next, another sheet is laid parallel to the fixed. Both canvases are fastened together with self -tapping screws. After that, the sheets are once again thoroughly aligned according to the cornice and finally fixed to the crate using self -tapping screws with rubber gaskets. Further styling is carried out with the overwhelming part of the new sheet on the already fixed. Also, many masters lay the sheets from left to right, slipping the next sheet in the castle of the previous. So you can achieve a more accurate docking of sheets in locks. One of the important elements in the installation of a roof of metal tiles is the yndov. It is an internal joint of contacting the surfaces of the roof. It is necessary to form the basis for yendova from a continuous surface. For this, wide boards are used or several standard crate bars are combined. The instruction provides for the installation of both lower and upper yends. The lower elements are fixed directly to the surface of the crate using self -tapping screws. Lower Endova is made of a durable galvanized sheet of steel. The technology of roofing equipment using the lower yendova implies the removal of water, which penetrates under the roofing at the joints of the slopes. The design of this type of yndova is an equilateral element with an inner angle of 135 degrees, the edges of which are bent. Upper Endova for a roof of metal tiles is more than a decorative value to hide the joint of sheets with the lower end. As the technology of arranging a metal -based roof provides, the upper Endova is installed at the last stages of work.
  • Parts

    Another important element of the roof of metal tile is the end bar. This part is designed to protect the edge of a sheet of metal tiles from atmospheric precipitation to its surface, as well as the accumulation of dust, foliage or other garbage between the end board and the surface of the roof. In addition, the end bar protects the structure from wind loads and gives the roof an aesthetic appearance. The end strips must be fixed directly to the end board, and its edge should be tightly in contact with the sheet of the metal tile. It is necessary to fix the end strips with a step of 50-60 cm, and the overlap between such elements should be at least 5 cm.

    Carnetic bar

    It is simple to infer this element’s function and location within the metal tile roof structure just from its name. The roof frame arrangement is finished with the installation of the bar’s cornice. It ought to be fastened following the frontal (cornice) board’s frame fixation. The lower edge of the waterproofing on the cornice bar must overlap in order to prevent water from penetrating into the supporting structure, according to instructions for installing a metal tile roof.

    Ridge strips

    The presence of protective elements is necessary for the metal tile roofs at the upper joints of slopes. These elements conceal the space between the sheets of material and allow for natural ventilation of the subcutaneous area, offering dependable protection against water infiltration. As such, skate strips are a component. Both rounded and flat skates are possible. The installation technology allows for rubber-sealed roofing screws to be used for fastening, and it is advised to place the ridge seal underneath the bar itself. This component shields the roof from the effects of airborne precipitation, trash, and insects.

    Snow holders and other safety elements

    Additional accessories are provided by the metal tile roofing structure to guarantee safe operation and upkeep. Snow retainers are thus installed to prevent the uncontrollably large accumulation of snow cover from the roof and potential harm to people (some manufacturers mark such elements as snowmers). These components could be arranged in a checkerboard pattern or in a single line after a predetermined distance in the installation circuit. After the second or third wave of metal tiles from the cornice bar, these components need to be attached. The two most popular styles of snow holders are connected tubes or different formatted strips.

  • The specificity of the installation of a cold roof made of metal

    Today, during the construction of a residential building, various options for roof structures are used, but the simplest is the cold roof. Such a device is great when the attic space is not used as a living additional room. The scheme of such a roof itself is very simple: load -bearing structures, waterproofing, crate and counterpart plus roofing material. Cold roofing diagram. Features of the installation of such a cold roof consist in that it is necessary to provide a ventilation gap to withdraw condensate in order to protect not only the supporting structures, but also the roofing in the form of a metal tile from the negative impact of moisture. The installation of such a roof itself does not differ in any difficulties, the main thing is to correctly fix the profiled metal sheet so that precipitation does not penetrate the joints under its surface. Before starting construction, you should make all the required calculations, calculate the angle of inclination, the step of the crate, determine the method of fastening sheets of metal tiles .

    Features of the cold roof

    Cold -type roof diagram. The cold roof differs from warm in its device, although its design itself is extremely simple. The only thing to take into account is the option of roofing. When using metal tiles, a ventilation gap should be provided for the correct removal of condensate from the under -round space. This is done so that the steel sheet is not subject to corrosion. The cold roof device is the installation of a rafter system on which a membrane or polyethylene film is laid for waterproofing. After that, the counterpart, crate and coating in the form of metal tiles are nailed. The features of such a roof are the complete absence of a layer of the heat insulator, the presence of ventilation outputs under the ridge and on slopes for the output of moisture. Design and installation are not difficult, the main thing is to correctly conduct all preliminary calculations. The installation itself includes the following features:

    1. If a warm roof is planned in the future in the future. then you need to approach very carefully to the choice of a membrane to protect against excess moisture. For the future attic, only specialized waterproofing in the form of membranes, produced from PVC.
    2. If insulation is not planned in the future, then microperforated waterproofing is used, designed specifically for cold roofs. Such a film does not allow to lay thermal insulation materials next to it, that is, with further insulation, you will have to spend money on a new membrane. If this condition is not fulfilled, then the roof will practically not be protected from moisture in the future, the insulation will be constantly wet, and the roof coating will be subject to corrosion.

    The sequence of work

    Diagram of the pitched roof system without insulation.

    It’s important to keep in mind that installing a waterproof membrane requires some sag—roughly 20 mm. With the use of such a device, you can guarantee condensate drainage, protecting the rafters and other roof components from moisture. A ventilation gap must be present between the waterproofing film and the roof’s skate in order for the water to evaporate efficiently and avoid standing still and producing an unfavorable atmosphere.

    All traces of condensate are removed from the under-tributary space by the unimpeded air circulation made possible by this gap. To protect the roof, the membrane itself should be free of tears and other flaws, and any that are should be fixed with construction staplers.

    The film’s edges must be secured with adhesive tape because it is unavoidably overflowing.

    It should be mentioned that one of the features that sets the cold roof apart is its ability to be constructed for any climate. It is a common misconception that this kind of roof is totally inappropriate for the northern climate, but this is untrue. In this case, a residential building’s conventional remedy is a cold attic. Because the attic overlap is insulated, the upper floors’ internal microclimate is unaffected by the use of a cold roof. Since installing a layer of insulation between the upper floor and a subcutaneous space resolves all issues related to heat loss, the attic itself is not even usable.

    Diagram of a failed roofing device.

    You should not overlook the importance of properly insulating technological holes and outputs when building a cold roof. All chimneys, ventilation shafts, and roof surface entrances must be insulated in order to achieve this. By doing this, issues like icing, condensation, precipitation seeping through, and heat loss will be prevented.

    You can use the widest variety of roofing materials to cover the roof of this design. Usually, it’s a metal tile, which installs without any issues. This is the best option because it minimizes the amount of additional work needed because all of the laying is done as soon as possible. Other materials, like flexible tiles, can be used for coating. However, a number of technological issues have already surfaced here that could increase the cost and complexity of installation. Thus, in this instance, using a metal profiled sheet is recommended.

    Advantages 1. Durable and long-lasting.
    2. Lightweight, reducing structural strain.
    3. Resistant to fire and extreme weather.
    4. Low maintenance.
    5. Reflective surface helps in energy efficiency.
    Considerations 1. Initial cost can be higher than other roofing types.
    2. Installation may require professional expertise.
    3. Expansion and contraction with temperature changes.
    4. Proper insulation needed to prevent condensation.

    For homeowners seeking efficiency and longevity, a metal tile cold roof has many benefits. Metal tiles are made to withstand a wide range of weather conditions, from heavy snowfall to intense sunlight, without rapidly degrading. It is a sensible option for a long-term investment in your house because of its durability, which eventually translates into lower maintenance costs.

    Furthermore, metal roofing tiles are lighter than conventional roofing materials, which can lessen the strain on your home’s structure. This feature reduces stress on the building’s framework, which could lengthen its lifespan, and makes installation easier. Additionally, metal tiles’ light weight makes them easier to handle during installation and transportation, which speeds up and streamlines the roofing process.

    The energy efficiency of a metal tile cold roof is another important benefit. Metal reduces the amount of heat that the roof absorbs by reflecting a significant amount of sunlight. During hot weather, this reflective quality helps keep your home’s interior cooler, which may reduce your cooling expenses. Moreover, insulating layers can be added to metal roofs to improve their energy efficiency and improve year-round thermal regulation.

    In conclusion, homeowners can combine cost-effectiveness, efficiency, and durability by choosing a cold roof made of metal tiles. Whether you’re planning a new construction project or looking to replace your current roof, taking into account metal tiles can have many advantages that improve your home’s comfort, longevity, and value.

    Video on the topic

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    What do you think, which element is the most important for a reliable and durable roof?
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    Alexandra Fedorova

    Journalist, author of articles on construction and repair. I will help you understand the complex issues related to the choice and installation of the roof.

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