Making important choices is necessary when building or remodeling a roof, particularly with regard to materials. Because it is affordable and long-lasting, corrugated board roofs with four sides are a common option. Because of their strength and resilience to weather, metal profile sheets are commonly used for this kind of roof.
Roofs made of corrugated metal have various benefits. Compared to conventional roofing materials, they are simpler to install because they are both sturdy and lightweight. Because of the improved structural integrity provided by the corrugated design, the roof can endure a variety of weather conditions, such as wind, snow, and heavy rain.
A four-sided roof can be installed with metal profile sheets, but there are certain methods that guarantee longevity and best results. Careful alignment and fastening are necessary during proper installation to stop leaks and preserve the roof’s integrity over time. Paying close attention to details during installation can drastically increase a roof’s lifespan and reduce maintenance expenses.
The aesthetic appeal of a four-sided roof is also influenced by the corrugated board selection. Contemporary profiles come in a variety of hues and finishes, so homeowners can use metal roofing’s practical benefits to match their architectural style. Because of their adaptability, corrugated metal roofs are a popular choice for both residential and business structures.
Step -by -step briefing on laying a metal profile
Profiled roofing steel comes in sheets that resemble waves or corrugations, either with or without a polymer protective and decorative shell.
It is constructed from cold-rolled metal that has been hot-galvanized, giving it a stable defense against airborne threats.
The line of profiled sheets from various manufacturers is conditionally divided into categories for walls, roofing, and supporting sheets. However, if the home owner is not overly concerned with the cost of load-bearing and roofing options, he may use any view that appeals to him when it comes to roof arrangement. Take note that the corrugated roof material is lighter, easier to handle, and more reasonably priced.
All kinds of extra components are made for the configuration of roofs with profiled sheets, which greatly eases the task of roofing. The fact that they are used to lay metal tiles unites all of the products from a single manufacturer. T.O. The only difference between the two roofing representatives is whether or not a transverse profiled step is present.
A drainage groove is positioned by analogy with the metal tile along the corrugated board panels’ right or left edge. Its purpose is to eliminate moisture that has gathered in the coating’s connecting seams. The extreme wave with the gutter should be beneath the next sheet of material during installation, and its opposite must block the same groove of the adjacent element from the opposite direction.
One or two laid panel corrugations are applied to the element that is already situated on the slope in order to install the coating. The material’s bearing capacity and the slope’s angle of inclination determine how many overlapped longitudinal recesses there are. It is important to take into account the recommended amount of corrugation to overwhelm when calculating the material needed to arrange the roof.
A convex protrusion is used to connect individual panels into a single, large roofing sheet using short self-tapping screws that do not penetrate deeply into the crate. However, the concave portion of the corrugation serves as a deepening into which the metal roof is fastened. The mounting components are finished in a tone that matches the roofing material, and they have elastomer pucks installed to ensure tightness at the connection point.
The profile is provided to the object of the necessary length that the customer specifies during the purchase process. Angle cutting is done prior to laying on the construction site; it is not done by the supplier. Make a roof project or at least sketch something on a scale before buying the material to avoid overspending on excess.
Roof design from corrugated board
Corrugated board installation on holm and tent four-sloping roofs differs greatly from sheet installation on a design with two slopes. Large coating elements do, in fact, need to be cut and installed in a specific order:
- For tent. First, the central axis of the starting sheet and the slope by the crate is sneaked. Then the fitting with the combination of the axes is carried out, during which the cuts of the cuts are marked. All subsequent sheets are tried on and cut in fact at the facility.
- For the Valmovs. The first sheet is installed so that its edge coincides with the extreme line of the right or leftist of the ridge run. The starting sheet has no oblique cuts, it is set to the full height of the roof. Only panels adjacent to the slanting holm ribs are cut.
The material for all four slopes is cut down in accordance with the same scheme when tent structures are arranged. In holly roofs, the roof is partially cut on two long slopes and split into two end slopes that are laid in a manner similar to tent roof arrangements.
When creating a project or sketch of the roof, you must consider the following in order to calculate before purchasing the material and to create your own roofing plan:
- The number of sheets is calculated by the width of the base of each slope.
- The height of the sheet is determined by a pre -compiled scheme. It should be arranged so that it completely closes the hip rib as possible.
- The calculations are not used by the general, but the beneficial width of the corrugated board when laying with an overlap in one corrugation. If two corrugations go under the overlap, the estimated useful width will decrease by another wave.
- Sheets on triangular slopes are laid out from the center, on pentagonal slopes – from the extreme point of the ridge run.
- The optimal location of the panels of the corrugated board minimizes the number of roof parts, the width of which is less than half of the sheet. These are too weakened roof places due to a large number of fastening points per unit area and seams.
The width of the overhang above the cornice should always be taken into account when measuring the heights of profiled panels. This is the sheet’s lower edge, which is wider than the headboard at 3.5 to 5.0 cm.
The drainage system’s holders must be identified during the design phase, either before or after the coating is laid. The so-called long brackets are used in the first instance, and their installation has to be completed before any installation work is done. In the second scenario, short hooks that are fastened to the frontal board are used, and they can be fastened at any moment.
It should be determined during independent design whether the insulation system’s design is required. The design of the rafter system and material consumption are greatly impacted by the thermal insulation device because the roofing pie:
- Only one layer turns on the cold roof. This is a waterproofing arranged from a classic film or anti -condensate material with a pile that absorbs excess moisture under the roof and parting with them during ventilation.
- The insulated roof includes three layers: steam, heat and waterproofing. On the part of the operated premises there is a vapor barrier film that protects the following insulation from domestic fumes. On the outside, the insulation is protected by a waterproofing carpet.
There are one or two functional ventilation contours arranged in the roofing pie for the profile. The waterproof material selected for the arrangement determines how many of them there are. It is crucial to keep in mind that bitumen-containing alternatives cannot be used as waterproofing beneath a metal roof with a polymer coating.
If traditional polyethylene or villous anti-condensate material is used, the first ventilation circuit is installed between a heater and a waterproofing carpet. The creation of a ventilation canal above a diffusion membrane is not necessary. When the voltage happens, she releases extra moisture on her own.
Without fail, the second ventilation circuit is constructed between a metal roof and waterproofing. Regardless of the material selected for its apparatus, corrugated board should not come into direct contact with a water-repellent carpet to prevent the formation of condensation, which can lead to the formation of rust foci that corrode metal.
Skatov Square is proportional to the ventilation gap’s minimum value. For instance, the total area of the ventilation ducts for this ramp should be 0.5 m² if the equipped area is 50 m². To divide the ventilation gap into the influx and outflow zones, divide the final value in half. These values are equal for gable roofs; however, an additional aerator can eliminate some of the difference in four-scatter structures.
Preparation of the rafter system
Keep in mind that profiles for roofing steel are installed on both metal and wooden rafter structures. The metal frame device is typical of non-residential objects, usually used for domestic purposes. The frame has bolted joints or can be collapsible and welded. With reshetins—a square in a pipe’s cross section or a P-shaped profile—the rafters are a channel or a corner.
It is inappropriate to construct residential building roofs on metal rafter systems. Independent masters will find wood much easier to work with and more suitable. As a result, we will disassemble the most popular solution, which is to lay a profiled sheet on a wooden base.
It is reasonable to assume that the crate and rafter system provide a sturdy foundation upon which to install profiled sheets if:
- Step of Riftin installation no longer than 1200 mm. Optimal interval from 600 to 900 mm.
- The rafter legs are made of a beam with a cross section of 50 × 100 or 50 × 150 mm, depending on the wind and snow load characteristic of the region.
- The cross section of the crate is selected depending on the distance between the rafters and the steepness of the roof.
Corrugated board reshetins are installed using a similar procedure. Only in areas where amplification is necessary, such as the valleys, the hip roof’s skate run, the roofing aisles, and the area surrounding cornice overhangs, should the spacing between them be shortened by 50 to 60 centimeters.
The rafter system is strengthened by enlarging the crate’s cross-section or reducing the step between the reshetins if its parameters are insufficient to guarantee the stability of the base beneath the installation of a profiled sheet on a four-skeet roof.
Roofing pie
The roofing pie is constructed using the same conventional method used to construct any type of insulated roof. It should be kept in mind that a dropper—a bent angle made of thin-leaf steel intended to remove condensate—must be installed before installing a waterproofing carpet around the perimeter of a four-sloping structure.
- The device of vapor barrier protection. Rolled material is attached to the rafters with a stapler, together with tape. Rolled out with horizontal stripes, laid with an overlap of 10 -15 cm. If it is planned to install OSP lining, plywood or GVL with panels, a crate is built over the vapor barrier on the rafters.
- The laying of the insulation. Thermal insulation from basalt or glass wool is laid in the cells formed by rafters. The material is cut so that the width of the thermal insulation element is approximately 1 cm wider than the distance between the rafters for laying it of its dispersal.
- The device of the waterproofing carpet. The water -repellent material is laid on the outside of the rafters with horizontal stripes glued together by adhesive tape. Laying begins at the cornice, continues to the top or skate run. To the rafters is temporarily attached by a stapler, then fixed with reshetins.
Insulation films are layered with overlap through a 15–20 cm oblique ridge on the tent and holly roofs. An interruption in the insulating layers is required along the hip roof’s ridge line. There is no arrangement of the rupture on the oblique ribs.
It is advised to use a superdiffusion polymer membrane for waterproofing if the insulating layer’s thickness and the rafter leg’s width are equal. It is not necessary for insulation and ventilation gaps to form in order for the material to ride the condensate.
The distance between thermal insulation and classical or anti-condensate vill waterproofing should be. 3 to 5 cm is the channel width. It is created by attaching a bar crate that is the same size on one or both sides to the outside of the rafter legs. The waterproofing is then applied on top of it, and the crate is put back in place to leave a space between the waterproof carpet and the coating on the second level.
If the heat insulation thickness is at least 3 cm less than the width of the rafter leg, do not exert additional force on the ventilation canal device.
Without insulation, building the roofing pie of the structure is completed considerably more quickly and easily. Every step involves laying the waterproofing rafters and positioning the crate’s remote bar on top of them. All that’s left to do is install the cornice strips, cover the four-sized roof’s plane with cornered sidelines, secure them properly, and fix the skate elements.
Marking and cutting metal coating
Having a basic homemade tool on hand is advised in order to mark the panel trimming at an angle. These craftsmen refer to this tool as the "devil." A barn that is appropriate in size or four segments of a board measuring 25 by 100 mm are needed. There will be two blanks that are 1.1 to 1.2 meters long. The second pair may be somewhat bigger or comparable.
The procedure for producing a simple marking tool:
- On the desktop or free even site we lay out the prepared scraps of the boards in the shape of a rectangle or square. Naturally, they will be located in two parallel pairs.
- Between the left or right ribs of the horizontal elements of the built device, we form a distance equal to the working width of the roofing panel. Most often it is 1.1 m.
- We check the parallelness of the parts of the future device. After the check, we fasten them with hinged joints so that they can shift relatively each other with parallel pairs.
We apply the marked panel for marking with the "devil" on the sheet mounted and mounted on the roof. To mark the line of the impending cut, we install a homemade tool on the oblique rib of the rolm. We mark the panel, move it to a cutting-friendly location, and then cut.
An acute disk saw, whose technical capabilities are laid down the function of cutting thin-leaf steel, can cut professors. For small-scale material removal tasks, an electrician or roofing shears are appropriate tools. It is not acceptable to cut metal roofing with a grinder.
When cutting coating with a polymer shell, care must be taken to prevent small chips from damaging the coating. Repair paint needs to be applied if any cuts or scratches are found.
Using a soft brush, carefully remove any small sharp particles of the cut material from the panel prior to installation. Soap solution should be used to clean persistent pollution. It is advised to apply varnish or repair composition to the cut edges of the sheets, starting from the adjacent Valmov and skate ribs.
The laying of a profiled sheet on a holly slope
Fitting and cutting each sheet of profiled tin to fit the triangular plane comes first. A cornice bar fixed to the crate surrounds the perimeter of the roof prior to their installation.
The marking of the panels is completed in a precise order as follows:
- On the first sheet, we celebrate its central axis, on Mauerlat of Skat – its middle.
- We install the first sheet, combining the marked centers of its and Mauerlat, check the horizontalness of the lower edge of the panel.
- We fix the first sheet with one screw at the top.
- We install adjacent panels, one of which is superimposed on the edge of the sheet with a capillary groove, the second is slipped under it from the opposite side.
- Align the block of three panels relative to the horizon and among themselves.
- Temporarily fix each of the newly installed sheets with one screw at the top, trying to arrange the fasteners outside the part required in laying.
- We mark the cutting lines.
Once the marking is done, cut off any excess material from the panels and remove the temporary fastener. Next, we put them back in their original positions, arrange them as shown in the above plan, fasten them just at the top of the center sheet once more, and align the block prior to the last fixation.
Initially, the sheets are screwed every 50 centimeters to form a single roofing canvas on 4.8 x 19 mm self-tapping header. Following the connection, the unit is already attached to the reshetins and is once more oriented with respect to the horizon and the cornice’s edges. To accomplish this, 4.8 × 38 mm screws are used, and they are inserted into each second recess where the profile deepens.
Each profile depression on the sheet is used for fastening to the solth cornice. The fasteners are evenly spaced in the middle of the sheet so that five mounting points correspond to one square meter of coating.
Following the completion of the leaf coating, skating elements are installed, and the edges of the inhibits are first sealed. When trapezoidal slopes are arranged, the bar with plugs is mounted on the ridge ridge after the first-sized ribs are placed on the bottom of the bottom.
The installation of corrugated metal roofing panels on a four-sided roof structure is covered in detail in the article "Four-Sided Roof from Corrugated Board: Specifics of Laying Metal Profile." We examine the special difficulties and advantages of utilizing metal profiles, emphasizing important procedures like correct alignment, fastening strategies, and weatherproofing approaches. Whether you’re a professional roofer or a do-it-yourself enthusiast, knowing these details guarantees a long-lasting, aesthetically pleasing roof.
To guarantee longevity and effectiveness, building a four-sided roof out of corrugated board requires a few specific techniques. A few benefits of using metal profiles for roofing are their lightweight design and resilience to different weather conditions. Because these roofs are inexpensive and simple to install, they are frequently utilized in both residential and commercial buildings.
It is essential to begin with accurate planning and measurement when installing metal profile on a four-sided roof. It is important to carefully cut each panel to match the roof’s measurements, accounting for any corners and angles. A tight seal against wind and water is ensured by proper alignment and fastening, which stops leaks and long-term structural damage.
Once installed, corrugated board requires less maintenance than traditional roofing materials. It is advised to do routine checks for rust and loose fasteners in order to extend the life of the roof. Furthermore, adding a protective coating can improve the metal profile’s ability to withstand corrosion, increasing its longevity in abrasive environments.
In conclusion, building a corrugated board four-sided roof with metal profile provides an affordable and dependable option for both new construction and renovations. Homeowners and builders can benefit from a long-lasting and weather-resistant roofing system that improves the overall appearance and functionality of the structure by adhering to best practices in installation and maintenance.
