Sandwich panels are modern version roofing material. Installation of roofing in the form of multilayer panels is not difficult, as the material weighs a little. Light weight is both an advantage and a disadvantage, as strong gusts of wind can tear off the coating.
In three-layer roofing panels, the outer layers are profiled metal (thickness 0.5-0.7 mm), inside there is a heat insulator (fiberglass, mineral wool, polystyrene foam or polyurethane foam). All layers of a sandwich panel are a single product, the layers are connected using glue or by pressing.
Advantages of roofing sandwich panels:
- Good noise and heat insulation;
- Original appearance;
- fire resistance;
- Service life of more than twenty-five years;
- Versatility - there are elements of different sizes.
Mounting Features
The roof, which is planned to be covered with sandwich panels, must have the correct slope. The slope of the roof is prescribed in SNiPs, the wrong design of the roof almost halves the service life of this roofing.
- If there are windows or skylights on the roof, then the slope should be greater. In this case, the calculations are carried out on an individual basis.
Problems when choosing the wrong slope of roof slopes:
- Rapid wear of the material, deterioration of operational parameters;
- The occurrence of stagnant water;
- Poor waterproofing, roof leaks;
- Loss of aesthetic appeal.
In the construction of buildings and structures, the correct erection of the roof is important.
To ensure practicality, convenience, and the absence of violations of the waterproofing of the roof, roofs are built with a slope. Roof pitch made of sandwich panels is determined by several factors - first of all, it is the design of the structure where construction is being carried out, as well as the weather in the region.
The slope is the angle of inclination of the slope to the horizontal surface. The slope of the roof is directly related to the angle of inclination.
It will be the larger, the larger the angle. The slope of the roof can be expressed in two units: either as a percentage or in degrees. Let's say 4 degrees would be 7%, and 3 degrees would be 5.2%.
To calculate the slope, you need to divide the height value by the roofing value (this is the distance from the highest point of the roof slope to the bottom horizontally). The result is then multiplied by 100.
Bearing structures in the construction of roofs of buildings with a slope can be made of wood, metal, reinforced concrete.
From which material to choose the supporting structure is determined by the type of building or structure, the slope of the roof, the thickness of the sandwich panels.
There are some other important parameters as well. Usually the customer purchases fully equipped, and the equipment corresponds to the type of installation and construction. The roof is assembled from panels, installing them along the runs.
For fastening, bolts are used, which are fixed on embedded parts.
How does the weather affect the slope of the roof
When designing a roof structure and determining its slope, one should take into account the climate and weather in the area. If there is a lot of precipitation in the region, it is preferable to make the roof slope from sandwich panels more than 40 degrees.
At the same time, water will not accumulate on the roof. If, on the contrary, the region is characterized by dry and hot weather, the slope is made much smaller, in the range from 7 to 25 degrees.
In principle, it is necessary to make a roof slope to eliminate stagnant zones on the roof. The water that collects in them blooms over time.
In addition, such accumulations of water break down over time. In the cold season, the cause of damage to the roof is repeated freezing and thawing of water accumulated on the roof.
When designing a roof with a large slope to protect against precipitation, it must be taken into account that the consumption of sandwich panels will be the greater, the steeper the slope.
SNiP standards for sandwich panels
According to the standards SNiP3.04.01-87 "Insulating and finishing coatings"and SNiP II-26-76" Roofs ", the smallest value of the slope of the roof, for which solid sandwich panels are used, is 5%.
This ensures that there is no deformation of the panels and no leakage of the roof itself. If panels are used for the roof, which are connected along the length, the minimum slope value is slightly higher - 7%.
Before installing sandwich panels, it is necessary to carry out preparatory work. They consist in trimming the lower metal sheet and insulation from the second row. The amount of trim corresponds to the size of the joint.
Where the sheets are joined in width, seals are laid, for which sealing materials are used. If the slope size is greater than 7%, it is required to strengthen the adhesion of the sandwich panels. This is done with the help of additional screws that secure the longitudinal connections.
If the selected slope value is optimal, the life of the roof will be increased by reducing the load on the sandwich panels, which falls on the base of the structure.
Roof sandwich panels - convenient modern material for covering roofs of any area. They appeared on the construction market relatively recently, but builders are willing to use them in their work because of a number of qualities:
- Ease of installation: sandwich panels are mounted without unnecessary physical effort, and the process takes relatively little time;
- Light weight with a large area: this is both an advantage and a disadvantage, because the panels are easy to carry, but the wind easily removes them from their place;
- Good heat and noise insulation;
- fire resistance;
- Appearance: With sandwich panels, home, garage, store and any other building get a personality of decoration and make passers-by pay attention to its organic design.
Why do you need a slope?
Making a roof slope means going to increase costs. The higher the laying, the more material is needed to cover the area. But since you can save money on this, is it worth it at all to make a bias and spend extra money?
Firstly, a roof made of sandwich panels has special conditions installation in the SNiP standards, and ignoring them will be a mistake and bring trouble.
Problems when erecting the wrong slope
Ignoring or ignorance of the rules for laying roofing from sandwich panels will bring trouble to the owners of the building in the form of:
- Rapid wear of the material and deterioration in quality;
- Stagnant waters that will begin to bloom;
- Waterproofing violations;
- Presentable loss.
Right choice
Minimum slope is selected according to the climatic environment of the building and the features of installation. For a dry climate with hot air and constant solar exposure, when the roof is made of solid panels without transverse joints and openings, choose the minimum slope allowed by the rules of SNiPs - 5 °. If there are connections or skylights, then a greater slope is required.
All solutions for choosing slopes are indicated in the table. Four positions reflect the minimum performance, but building solutions in different occasions hesitate. If the laying is carried out by a non-professional with a special education, then there is no question of other solutions.
Guarantees
If the choice is made correctly, then the roof of the sandwich panels will serve the building for 25 years or more. During this period, there will be no unpleasant incidents in the form of leaks or freezing of the seams, if the installation was carried out with intelligence and arrangement. The external qualities of the panel lose for a long time, and a presentable appearance is maintained until the end of the service and the dismantling of the coating.
Sandwich panels - relatively cheap roofing material, and for the price paid, fulfills and exceeds the plan of work and honest service to the building. The main thing is to carry out the laying work correctly and choose the minimum slope so that the coating can show its qualities in all its glory and represent the appearance of the building only from the best side.
Performance roofing works buildings is one of the most complex and responsible operations. Despite the material from which the installation of real estate is carried out, you can quickly make a roof from sandwich panels. Thus, when constructing a roof made of sandwiches, it is not necessary that the building also be made of this material. An important detail during installation is compliance specifications and panel features. The slope of the roof made of sandwich panels must be carried out in accordance with the design characteristics and the expected load.
Varieties of roofing sandwich panels.
Three-layer sandwich panels are used for roofing, the main insulating element of which is basalt fiber or polyurethane foam. As facing material stainless steel or aluminium.
The low load on the roof allows you to perform any manipulation using panels. The main thing is to take into account the weather conditions of the region where the installation takes place. This is especially true for the central and northern regions of Russia, where the load of snow cover on the roofs of buildings can be quite high. It is recommended to perform a roof slope of at least 5% in relation to the horizon line.
The use of sandwich panels with a certain type of insulation depends on the characteristics of the building under construction. For elevated thermal insulation properties buildings use panels filled with polyurethane foam. In addition, this insulation has a much lower weight, as a result of which the load on the roof is significantly reduced. Features of polyurethane foam allow the use of sandwich panels with this type of filler in rooms with aggressive and aqueous media during long-term operation.
Panels with basalt fiber as a filler are recommended to be used for arranging rooms of a higher category fire hazard. Such an application is possible due to the fact that the fiber belongs to non-combustible materials.
The roof slope of the sandwich panels must also correspond to the region in which the installation takes place. In this case, the following principle is used - the greater the design load, the greater should be the slope of the roof. Thus, a natural snow cover is provided from the roof of the building. Otherwise, the snow will have to be removed additionally with the help of labor. Such an impact on the roof cannot but have a negative impact on quality properties roofing, which significantly reduces the life of the material.
Features of installation work.
When using solid sandwich panels, the roof slope cannot be less than 5%. In the event that the panels are connected along the length, the slope must be at least 7%.
If the roof slope is more than 7%, then for fastening longitudinal connections connecting screws must be additionally installed. To eliminate possible leaks, it is necessary to install sealing gaskets in all joints along the width of the panel. In preparation for installation, the panels must be prepared by cutting the bottom a metal sheet panels and a layer of insulation, by the size of the joint, starting from the second row of panels.
When determining the slope of the roof depending on the region, for a device in regions with increased precipitation, the roof may have a slope of 40% or more. In dry and hot climates, the slope is from 7 to 25%.
Prefabricated sandwich panels, - explained the head of the construction site, - "can also be used for roofing."
Roofing sandwich panels are a convenient modern material for covering roofs of any area. They appeared on the construction market relatively recently, but builders are willing to use them in their work because of a number of qualities:
- Ease of installation: sandwich panels are mounted without any extra physical effort, and the process takes relatively little time,
- Light weight with a large area: this is both an advantage and a disadvantage, because the panels are easy to carry, but the wind easily removes them from their place,
- Good heat and sound insulation,
- fire resistance,
- Appearance: With sandwich panels, home, garage, store and any other building get a personality of decoration and make passers-by pay attention to its organic design.
Why do you need a slope?
Making a roof slope means going to increase costs. The higher the laying, the more material is needed to cover the area. But since you can save money on this, is it worth it at all to make a bias and spend extra money?
Firstly, a roof made of sandwich panels has special installation conditions in the SNiP standards, and ignoring them will be a mistake and bring trouble.
Problems when erecting the wrong slope
Ignoring or ignorance of the rules for laying roofing from sandwich panels will bring trouble to the owners of the building in the form of:
- Rapid material wear and quality deterioration,
- Stagnant waters that will begin to bloom
- waterproofing failures,
- Presentable loss.
Right choice
The minimum slope is selected according to the climatic environment of the building and the laying features. For a dry climate with hot air and constant solar exposure, when the roof is made of solid panels without transverse joints and openings, choose the minimum slope allowed by the rules of SNiPs - 5 °. If there are connections or skylights, then a greater slope is required.
All solutions for choosing slopes are indicated in the table. Four positions reflect the minimum figures, but construction decisions fluctuate in different cases. If the laying is carried out by a non-professional with a special education, then there is no question of other solutions.
Roof sandwich panels
All solutions for choosing roof slopes from sandwich panels are indicated in the table.
One of FAQ for the installation of panels - what slope of the sandwich panels is acceptable for the roof. The fact is that the updated version of SNiP II-26-76 Code of Rules 17.13330.2011 "Roofs" (Table 1.), which shows the preferred slopes of roofs depending on the materials used, does not give an answer about sandwich panels. The material closest to the sandwich panels that appears in the Code of Practice is a profiled metal sheet. For this position (galvanized steel, polymer coated, of stainless steel, copper, zinc-titanium, aluminum sheet) is set to "greater than or equal to 12%", i.e. greater than or equal to a 7° angle.
“The lack of a regulatory framework in this case is a significant barrier to providing the facility with roofing panels. The fact is that 90% of projects with pitched roof apply a slope of 10%. In this regard, we recommend making a slope of at least 10% when installing the roof from our sandwich panels,” said Vladimir Rodionov, Head of the Technical Solutions and Service Bureau of Teplant JSC.
The optimal slope value will increase the life of the roof by reducing the load on the sandwich panels.
In Soviet times, a lot of buildings were built in the style of the so-called Stalinist Empire style, where pomp was combined with monumentality and austerity in an amazing way. Architects often used columns, diamond-shaped colossi, and upward-looking shapes in their projects. Such buildings have been preserved throughout the country and are still in operation, despite the solid wear of the structures. In Ufa, a striking example of such a building is the Salavat Yulaev Sports Palace, which for several decades was the home arena of the hockey club of the same name.
On June 28, the annual scientific and practical conference was held at Teplant. This year it is held for the 5th time! In 2017, most of the projects were presented by financial, commercial services and customer service; this year, production workers excelled.
Alexander Rogachev joined the Teplant team in 2010, and in 8 years he has grown from the head of a legal bureau to the director of logistics and procurement. The young top manager told how his department works and what tasks he and his colleagues will solve in the very near future.
What slope is acceptable during installation roofing sandwich-panels?
What slope is acceptable when installing roof sandwich panels? One of the most common questions about the installation of panels is what slope of sandwich panels is acceptable for the roof. The point is that updated
The best option for BMZ is a roof made of three-layer roofs completely ready for installation. metal sandwich panels: does not need additional insulation, easy to install, cost-effective, aesthetically pleasing, low maintenance.
Reliable roofing is a combination of high-quality roofing sandwich panels according to favorable price, accurate calculations and correct installation!
Roof pitch made of sandwich panels
For guaranteed water drainage when the roof is iced, the slope of the roofing slopes should not be less than:
- 5% for roofs assembled from solid panels without cross joints and skylights,
- 8% for roofs assembled from panels connected along the length and in the presence of skylights.
At the same time, one should not forget about the minimum pitch and width of the roof supports. It is recommended to check the compliance of the support with the preferred characteristics. It will not be superfluous to take into account the data on the maximum permissible loads.
Proper installation starts with proper transport and storage. It is at this stage that the risk of damage to the panels and a decrease in their quality characteristics is high. To avoid mistakes, please read:
Panels must be mounted on thermal rubber glued along the entire length load-bearing element and adjacent structures. In the longitudinal joints and in the overlaps of the panels of the transverse joints, sealant must be laid, preferably butyl rubber tape. Usage silicone sealants not allowed.
When laying panels longer than 12 m, it is permissible to use cross beam- traverses. It is allowed to use a single-tee or channel beam - the panel is suspended every 3-4 m.
The slope of the roof must also be taken into account to avoid damage to the edges of the panels.
Raising panels to the roof
In the process of laying roof sandwich panels the best option use of a crane is considered.
The lifting of individual panels from the package one by one must be carried out using specially designed and widely available tools: carpentry clamp with steel plate and rubber or felt pad, vacuum grip.
Installation of roof panels: fastening to the run, ridge, ebb
First of all, with the exception of ridge roof purlins, with the help of one fastener, the panel is fixed to the purlin under the ridge.
The extreme panels are attached in the upper part of the trapezium to the run with three self-tapping screws, the middle ones - with two. Given the difference in loads in the above areas, the recommendations are conditional. The final number and type of fasteners is determined by the working draft.
Upon completion of the main installation work, it is necessary:
- between the ridge runs, mount the inner ridge bar
- polyurethane foam to fill the free space in the joints of the panels,
- when the foam hardens, install a profiled polyurethane gasket on both sides of the ridge,
In the case of using roof panels with mineral wool insulation, the joint is filled with a mineral wool sealing compound.
It is also important proper organization low tide. To ensure proper drainage from the roof surface, the panels in the overhang are trimmed with a plank.
A heater is cut under the top skin of the panel, the bar is pushed through and attached to the bottom panel. The gutter hooks are attached to the plank, later the gutter pipes are inserted, preferably made of PVC.
Roof junction to sandwich panels
Mounting units, junctions of roofing panels, fastening of panels and decorative strips are carried out in strict accordance with the design documentation, the development of which is carried out by a specialized organization licensed to carry out design.
Standard units for panels of the AluTerm construction series are set out in the "Design Recommendations".
Roofing from sandwich panels: installation technology, minimum slope, junction points
Sandwich panel roof installation technology, diagrams of typical junction points, design recommendations, optimal roof slope angle and other recommendations.
Due to its simplicity, the installation of roofing sandwich panels is very popular. But it is the strength and durability of the material that depend on how correctly the transportation and installation work whether the features of the technology for installing sandwich panels were fully observed during the creation of the roof.
Material Feature
Ideal for roofing, sandwich panels are incredibly easy to install. When arranging a roof with their help, the customer is faced with a huge selection of plates, which differ from each other by many factors.
Thermal insulation boards are:
- polyurethane foam,
- polystyrene,
- polyisocyanurate,
- from mineral wool.
Perhaps the main advantage of sandwich panels for roofing is their light weight, but their main purpose is to perform the function of the final coating and insulation material. The best indicators for thermal insulation can be provided by models with basalt wool.
Very thin but durable sheet material The case is covered with a polymer coating that performs not only decorative, but also additional protective functions. Strong corrosion protection also provides the opportunity to choose different color variations of the roof.
What does the roof sandwich panel consist of:
- galvanized steel with a polymer coating - 0.5-0.7 millimeters,
- transparent polyethylene film, which performs a protective function,
- trapezoidal insert made of expanded polystyrene,
- a labyrinth-shaped locking connection designed to drain water from the joints, so that the joints remain hermetically insulated,
- two-component adhesive, polyurethane, with extremely high adhesive properties,
- lamella, consisting of mineral wool, which is created on the basis of basalt fibers.
Thanks to all the perfectly matched components, a roof made of sandwich panels is an advantageous choice in all respects.
Choosing the right angle of inclination
The minimum slope when creating a roof is used quite often, but all joint venture installers must know the norms of degrees as unshakable dogmas, otherwise they become simple workers from masters.
Important! During the creation of roof drawings and the planning of work, it is necessary to take into account the future slope of the roof in order to correctly calculate the amount of material required.
According to the norms established by SNiP, the roof from the joint venture should have a minimum slope of 5 o.
This rule is valid only under the following conditions:
- the installation of the roof was carried out without joints and in length with solid panels,
- no skylights,
- there are no additional structures or decorative, functional elements that can affect the perfect integrity of the final layer.
Otherwise, the installation will be carried out in violation of the technology, and this will lead to the fact that the roof will not last for a long time or will leak.
If one of the points is violated, minimum angle roofs, mounted from sandwich panels, must be at least 7 o.
When planning the roof structure, at what angle the slope will be erected, first of all, the climatic features characteristic of the region in which the building is located are taken into account.
- in areas with frequent rains, the slope of the roof under the joint venture should be at least 40 °,
- dry and hot regions allow a minimum slope - from 5-7 to 25 o.
If in an area with high humidity make the roof a minimum slope, excess water will accumulate on it, which will negatively affect the entire roof as a whole. These residues become ice in frosty time, and this can damage protective covering and destroy the shell.
A slope exceeding an angle of 15 ° requires the installation of additional supports, otherwise the joint venture may move down.
Mounting Features
In the process of creating the smallest angle of inclination of the roof from the joint venture, no additional elements fastening the base material to wood, reinforced concrete or metal structure. In the case of laying panels on a frame with a degree of inclination above the minimum, additional connecting fasteners are required for installation.
Despite the fact that the joint ventures are laid according to the technology from the lower corner to the upper, the method of forming the roof should not be laid horizontally, but vertically along. Otherwise, the integrity of the roof is at risk. In addition, it is easier to plan the progress of work in this way, and less material is used.
Important! The heater in the joint venture is mineral wool, which requires the mandatory use of a respirator by the installer.
It is also worth noting that during the lifting of the JV onto the roof, it is not recommended to put the plates on the lock, otherwise it may deform, which will render the entire element unusable.
For roofing work, you should contact only experienced specialists who are competent in the installation of sandwich panels, since this material needs an individual laying technology.
The minimum slope of the roof of sandwich panels
Minimum slope of roofing sandwich panels Due to its simplicity, the installation of roofing sandwich panels is very popular. But it is the strength and durability of the material that depend
