The laying of corrugated board on the roof – Instruction

Because of its affordability, adaptability, and durability, corrugated metal roofing is a popular option. A weather-tight and durable roof depends on knowing how to lay corrugated metal sheets correctly, whether you’re building a new building or replacing an old one. You will be guided through the necessary steps to install corrugated metal roofing panels correctly by this guide.

First and foremost, a successful roofing project depends on preparation. To start, take precise measurements of the roof’s dimensions to estimate the number of corrugated sheets you’ll need. Make sure you have easy access to all required safety gear, including gloves and safety glasses. Make sure the roof surface is structurally sound and free of debris before applying the new roofing material.

The first corrugated sheet should then be laid, starting at one corner of the roof. To ensure adequate drainage, place it so that it overhangs the roof edge by approximately one inch. To fasten the sheet to the roof structure, use rubber washer-equipped roofing screws. To provide a stable fit while allowing for thermal expansion, place screws every other corrugation.

Follow the manufacturer’s instructions and overlap each sheet with the one before it as you work your way across the roof. Rainwater is guaranteed to flow off the roof smoothly and not seep into the supporting structure thanks to this overlap. Cut sheets with tin snips or a saw fitted with a fine-tooth blade to fit around vents, chimneys, and other obstructions.

After every sheet is firmly in position, finish the roof’s ridges with ridge caps to add more weather protection and a polished look. Ridge caps are fastened with screws and are made specifically to fit over corrugated sheets. Make sure they properly overlap to stop water from seeping in.

Lastly, make sure all of the roof’s seams are correctly sealed and that all of the sheets are firmly fastened. Make sure there are no gaps or loose screws that could let water in. When installed correctly, corrugated metal roofing not only improves the look of your home but also offers dependable weather protection for many years to come.

Preparing the Roof Clean the roof surface thoroughly, removing any debris or old roofing materials.
Installing Underlayment Begin by laying down roofing underlayment to provide a moisture barrier and improve insulation.
Measuring and Cutting Measure the dimensions of the roof and cut the corrugated boards accordingly, allowing for overlap.
Fixing the First Sheet Start at one corner of the roof and secure the first sheet of corrugated board using roofing nails.
Overlapping Sheets Overlap successive sheets by at least one corrugation to ensure proper water drainage.
Securing and Finishing Continue fixing sheets, ensuring they are tightly secured, and finish by trimming any excess material.

Features of the material

Known by various names such as metal profile or profiled sheet, corrugated board is a relatively thin steel sheet with a flat geometric shape corrugation and a polymer covering for protection. It is produced using specialized profile-based machinery using the cold method. The substance is meant to be used in the building of different kinds of structures. Depending on the kind, it can be used to decorate walls, build fences, make formwork for working with the foundation, and decorate roofs.

The composition of polymer-coated corrugated board

The corrugated board roofing’s dimensions

There are several ways that the profile is superior to other roofing materials. ABOUTN robust, dependable, long-lasting, flame-free, richly colored, and suitable for any home design. This material can have roofs covering it that are single-sided, have two or more slopes, or have an unusual shape. The material is convenient and practical when cared for, and installation is fairly straightforward.

The sizes of corrugated board can vary. A single sheet can range in length from 2 to 12 meters and in thickness from 0.35 to 1.2 mm. However, if you and the manufacturer agree, you can order sheets in accordance with specific needs.

Prices for corrugated board

Corrugated board

Requirements for work

To arrange roofs, it is recommended to buy corrugated board with a complex polymer coating. It is several layers, where the lowest is represented by galvanizing and chrome, then there is a primer layer, and after that a paint and varnish polymeric composition is applied. Due to such a coating, the material does not rust, but it is important to remember that when cutting a profiled sheet, this layer is damaged, so you will have to process the seats with protective compounds, otherwise the roof will quickly rush. Also, for this reason, you need to move around the profiled sheet only in soft shoes and very carefully so as not to spoil the coating.

Corrugated board roof

Corrugated board from various brands can be used for the roof, but typically a universal or wall with the label C, NS is used. Simultaneously, when purchasing materials, it is crucial to consider the height (21-35 mm), the thickness of the steel sheet, and the shape of the corrugation (a wave or trapezoid is ideal for roof arrangement).

Speaking of which, Purchasing profiled sheets with a 7 mm thickness is advised for the roof.

The future roof’s angle of inclination, the kind of manufactured crate, and its attributes all have a significant impact on the type of coating that is selected. Additionally, the profiled sheet’s length should ideally be such that the roof will be tighter when the slope from the skate to the cornice closes.

Installing a roof made of corrugated board

Corrugated board can be assembled on top of a wooden crate; however, the tree needs to be sanitized first. A metal crate made of steel runs can also be used; however, in this instance, the height of the metal profile’s corrugated portion must not be less than 4 cm.

Make sure you take the time to install the sound- and water-proofing layers. In any case, the latter is required, particularly if a residential building has corrugated board siding because the metal coating makes a lot of noise when it rains. Waterproofing is necessary to prevent water from seeping under the material, even in the event of minor installation errors or heavy precipitation. The vapor barrier will guarantee that corrugated board is less affected by condensation that forms in homes and builds up beneath the roof. In order to prevent the resulting moisture from building up beneath the roof, you also need to consider how the subcutaneous space is ventilated.

System of roof insulation

For homeowners wishing to take on this project, we offer step-by-step instructions and helpful advice in our extensive guide on "The laying of corrugated board on the roof." Our post includes all the information you require to guarantee a successful installation that improves the long-term stability and visual appeal of your house, from priming the roof surface to fastening the corrugated sheets."

What is required?

You will need to rent or buy a number of tools in order to install corrugated board on the roof; otherwise, the work probably won’t get done at all. Thus, a screwdriver, metal-cutting scissors, a jigsaw or hacksaw, a hammer, a building level, and measuring tools are required.

Implementation instruments for corrugated board

Among the supplies, corrugated board itself, as well as early components and fasteners, must be purchased. Remember to include materials for building crates, insulation layers, waterproofing, etc. D. In addition, a sealant is purchased to ensure that water cannot penetrate the joints.

The corrugated board is fastened with special self-tapping screws that have rubber seals. The height of the corrugated portion of the sheet determines their dimensions, and the roof’s sewing area determines their quantity. D = p1 + in + p2, where P1 is a thread that is included in the crate (about 2.5–3 cm), B is the height of the corrugated part, and P2 is the thickness of the washer and seal (about 4 mm), is the formula used to calculate the length of the screw D. There are roughly 5-7 screws per square meter.

Screws that self-tap for corrugated board

How to tighten a corrugated board self-tapping screw

Corporal Table.

Retention of snow on a corrugated board roof


For many homeowners, installing corrugated metal roofing can be a cost-effective and long-lasting solution. It is a well-liked option because of its portability and simplicity of installation. It is essential to properly prepare the area before beginning the installation process. Make sure the roof is sturdy enough to bear the weight of the corrugated sheets.

To start, mark and measure the roof to decide the exact location of each sheet. Correct sheet overlap is essential to ensuring water runoff and preventing leaks. When handling the sheets and tools, wear the proper safety gear, such as gloves and safety glasses.

Use screws made especially for corrugated metal roofing to secure the corrugated sheets. To ensure a firm hold, these screws need to be inserted into the corrugations’ crests. Observe the instructions provided by the manufacturer regarding the positioning and spacing of the screws.

Check the roof for any gaps or loose screws that might jeopardize its integrity once the installation is complete. When properly cared for, a corrugated metal roof can offer your house decades of protection as well as visual appeal.

Video on the topic

Installation of corrugated board on a hip roof / roof of one -story house

Installation of a profiled sheet (corrugated board) on the roof with your own hands

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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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