Review of the material: composition and main sizes of roofing panels

It’s critical to comprehend the sizes and composition of roofing panels when selecting the appropriate roofing material for your house. There are many different types of roofing panels, each with special qualities and advantages. Making an informed decision that suits your needs and budget can be aided by being aware of their materials and the standard sizes that are available.

A variety of materials, such as metal, asphalt, wood, and composite materials, can be used to make roofing panels. Different degrees of toughness, resilience to weather, and visual appeal are provided by each variety. For example, asphalt shingles are well-liked for their low cost and simplicity of installation, while metal panels are renowned for their durability and ability to withstand severe weather.

In your roofing project, the size of the roofing panels is also very important. Standard sizes vary based on the manufacturer and the material, but they are usually made to cover large areas quickly and with minimal effort during installation. For example, standard metal roofing panels can reach up to 12 feet in length, whereas asphalt shingles are typically offered in more manageable, smaller sizes.

Knowing the sizes and makeup of roofing panels guarantees that you choose the best solution for your particular requirements and aids in project planning. Knowing these details will help you make the best decision, whether you’re looking for something that provides excellent protection against the elements or a material that blends in with the style of your home.

"Knowing Roofing Panels: Examining Composition and Important Measurements" This article explores the fundamental features of roofing panels, including information on their composition and main measurements. We will reveal the various compositions—from metal alloys to composite materials—that are utilized in contemporary roofing panels, emphasizing their special qualities and advantages. We’ll also explain the important measurements and sizes that affect these panels’ efficacy and suitability for different types of roofing projects. Whether you’re a professional in the construction industry or a homeowner organizing a renovation, this review seeks to offer clear guidance on selecting the best roofing panels for your requirements.

The composition of the roofing sandwich panel

Sandwich panels for roofing only have three layers. As the name suggests, there are three layers to it:

1. External cladding from a profiled sheet with a great depth of profiling, which provides the material with a high bearing capacity.
2. Warming layer in the center.
3. Internal cladding from a steel sheet with a minimum profile height to create a relatively flat inner surface and saving on metal.

The roof sandwich panel’s composition also includes two layers of polyurethane two-component glue, which is used to bind steel sheets together with insulation.

No matter how big the roofing sandwich panel is, its lock is under an overlap, which typically takes up two thirds or even the entire wave. This results in a very tight connection.

The sizes of roofing sandwich panels according to GOST

Unlike the same corrugated board, the roofing sandwich panel’s dimensions are not as strictly standardized. GOST 32603-2012 is the sole regulatory document that governs their characteristics. However, it only relates to sandwich panels with a core made of mineral wool.

This GOST specifies that the roofing sandwich panels’ working width should be 1000 mm and their length should range from 2 to 14 m. Furthermore, even under the norm (paragraph 4.5), it is permissible to produce longer panels in consultation with the customer. They will still be regarded as GOST-compliant materials in this situation.

Furthermore, the GOST displays the external cladding of the roofing sandwich panel’s profile size. The drawing below depicts them.

The profile shape, wave height, and lock dimensions of the roofing sandwich panels are all specified in the standard. Additionally, the profiling step is given indirectly because it is simple to calculate because the panel’s working width (1000 mm) has four waves of profiles. Nonetheless, the manufacturer’s technical specifications (TU) are the only factors that affect the intermediate stiffness rib’s measurements.

The internal cladding of roofing panels is profiled in GOST as well, but not in terms of dimensions. The manufacturers still have the final say over them.

The GOST states that a roofing sandwich panel with a mineral wool filler has a thickness of between 50 and 300 mm. However, this thickness is conditional; that is, it is a multiple of ten when rounded to a value. The table below displays the roof panels’ nominal (actual) thickness.

The maximum deviation in width and thickness should be limited to 1.5 mm and 1 mm, respectively.

And if the roofing sandwich panel is not made according to GOST?

Sandwich panels for roofs with insulation have non-standard profiles and sizes that differ from those of mineral wool. This implies that the length, width, and thickness of the panel that is released are all up to the individual manufacturers. However, this is just theoretical.

In reality, manufacturers follow the GOST specifications to the letter, at least when it comes to the width of the roof panels. This is required because many rapidly vegetating buildings’ frames in standard projects are precisely designed for a 1000 mm width. Although they are typically made to order, panels with varying widths are also produced.

The length of the roofing sandwich panels is another factor. Actually, the only thing limiting it is the technical capacity of the production lines. Although roofing sandwich panels can typically be up to 14 meters long, some manufacturers offer materials that are 15, 16, and even 18 meters long. This significantly improves the roof’s dependability by enabling you to block extremely wide spans without the need for transverse joints. Its step is typically 200 mm, and the minimum length is just 0.5 m.

The thickness of roofing sandwich panels

The heater being used determines this parameter. For the purpose of insulating sandwich panels from heat, they also use:

• polystyrene foam;
• polyurethane foam;
• Penopolyazocyanurate.

Take a closer look at these insulation types.

Foam polystyrene

Inexpensive insulation that resists moisture. It is typically used to produce roofing panels that are the same size as the material as specified by GOST, with a maximum thickness of no more than 200 mm. This is because polystyrene foam performs better as insulation. Since there are so few climates in which using sandwich panels with a thickness of 250 or 300 mm is appropriate, this material is only available upon request.

Poliuretan foam

Insulation even more effective than polystyrene foam. Furthermore, even under extreme heat, it does not support combustion or release harmful substances. It is typically only made in the following six thicknesses: 40, 60, 80, 100, 120, and 150 mm. Sandwich panels with "filling" made of polystyrene that is at least 200 mm thick are uncommon.

Penopolyazocyanurate

This insulation is closely related to foam made of polyurethane. These two materials have very similar qualities; the only notable distinction is that one is fire resistant. Buildings that require higher fire safety standards are constructed using roofing sandwich panels that include penopolyazocyanurate as a filler because it is a member of the G1 combustibility group. When building warehouses for combustible materials, for instance.

Sandwich panels for roofing that have fenopolyazocyanurata as a filler have the same thickness as panels that have polyurethane foam.

Profile of roofing sandwich panels

Sandwich panels for roofing are more varied than other features, the profile claims.

The purpose of the material determines the height of the wave on the external cladding sheet. Wave heights in panels intended for roof installation on small buildings, like garages, typically don’t go above 30 mm. It is typically even less—22–25 mm.

When discussing roofing sandwich panels for industrial buildings, the external cladding wave height ranges from 30 to 45 millimeters. Additionally, there are deep-profiled specialty roofing panels made specifically for use in northern climates with heavy snowfall. Their external clad wave height is potentially greater than 50 mm.

Generally, each sheet has four complete waves. Three waves on panels featuring a deep profile.

Anyone working on a roof construction or renovation project needs to understand the dimensions and composition of roofing panels. These panels act as the roof’s outermost layer of protection and are commonly composed of metal, asphalt, or composite materials. They are available in a range of sizes and shapes to suit a variety of architectural designs and functional needs.

Known for their strength and resilience to weather, metal roofing panels are frequently composed of steel, aluminum, or copper. These materials have a long lifespan and need little upkeep. Panel dimensions can differ greatly; standard widths usually fall between 12 and 36 inches, while lengths are subject to change according to project requirements and manufacturer specifications.

Another common option are asphalt shingle panels, which are made of layers of fiberglass or organic materials covered in ceramic and asphalt granules. They are more lightweight than metal panels and are typically 12 inches wide by 36 inches long. These panels offer good insulation and weather protection, and they’re simple to install.

Composite roofing panels improve both performance and appearance by combining multiple materials. Although they are lighter and more durable than natural materials like slate or wood, they frequently have a similar appearance. Depending on the manufacturer, sizes can differ significantly; standard dimensions are made to fit most roofing applications.

Selecting the appropriate roofing panel necessitates taking into account elements such as climate, financial constraints, aesthetic tastes, and structural requirements. Every size and type of material has benefits and perfect uses. Homeowners and contractors can ensure long-lasting and efficient roof solutions for both residential and commercial buildings by being aware of these factors and making educated decisions accordingly.

Video on the topic

Installation (docking) of roofing landwalls of panels more than 12 meters long

Installation of wall sandwich panels | The first panel

Installation of roof sandwich panels. Warehouse 1000 m.sq.

Installation of roofing panels

Installation of roofing sandwich panels "120". Length 12 meters

Overview of roofing panels.

The secrets of the installation of roofing sandwich panels. How to make the right seams?