How to Fix Corrugated Roofing Sheets

How to Fix Corrugated Roofing Sheets

One of the most affordable and versatile materials used today in construction is a profiled sheet or corrugated roofing sheets. It is widely used in the construction of household buildings, fences , wall cladding and roofing. Due to the ease and ease of installation, lay flooring can and lay. Let’s try to figure out how to cover the roof with a corrugated roofing sheets with your own hands. Photo examples of roofing work will help to understand this issue.

What is a corrugated roofing sheet and how do they cover the roof

Thanks to the development of advanced technologies, new materials have appeared in construction with high operational characteristics and an affordable price. High-tech building materials include corrugated roofing sheets – galvanized corrugated metal sheets of different sizes with a polymer coating or without it.

Corrugated roofing sheets of various colors and with different corrugation heights
Corrugated roofing sheets of various colors and with different corrugation heights

From the outside, the profiled sheet consists of the following layers:

  • galvanized sheet – the basis of the profiled sheet;
  • anticorrosion coating;
  • polymer coating;
  • protective mounting film.

From the inside, the sheet can also be protected by an anti-corrosion layer and a protective varnish.

The advantages of using professional sheets in construction

Due to its high protective characteristics and aesthetic qualities, the corrugated roofing sheets is simply indispensable in the arrangement of the roof. Ease of use of this material also lies in the fact that wall cladding, installation of fences and roofing with a profiled sheet can be done by yourself. On numerous specialized sites there are video and photo instructions on how you can cover the roof with flooring from professional sheets.

High strength, anti-corrosion properties and rigidity, combined with a variety of sizes and low weight, made corrugated board popular in the construction of various types of premises.

The main advantages of using a corrugated roofing sheets include the following:

  • durability;
  • corrosion resistance;
  • rigidity;
  • light weight;
  • universality;
  • ease of self-installation;
  • availability of components;
  • convenience of transportation and storage;
  • low price;
  • wide selection of sizes;
  • high aesthetics of the coating.
Corrugated roofing sheets is not subject to corrosion
Corrugated roofing sheets is not subject to corrosion

The use of a corrugated roofing sheets accelerates the time and total construction costs with your own hands. A small number of joints provides reliability and tightness of the structure, and the low weight allows you to fasten the corrugated roofing sheets even to beginners.

How to cover the roof with a corrugated roofing sheets with your own hands. Photo examples of work performed

After entering the construction markets of corrugated roofing sheets, roofing with this material has become much faster and easier. A large amount of information, photos and videos on how to cover the roof with a corrugated roofing sheets with your own hands, allow you to learn how to fix the roof from a corrugated board yourself.

Like many repairs, it is best to cover the roof with a corrugated roofing sheets together. First you need to clarify the size of the area that you need to cover with corrugated board, make sure that the ramps are rectangular and check their plane with the help of the level. Then determine the color, shape, thickness and grade of the profiled sheet, as well as select the necessary tool and accessories.

Types of corrugated roofing sheets, selection and marking of corrugated board

A variety of types, shapes and a wide range of sizes of profiled sheets for the roof make it possible to find the right material for any roof.

Profiled sheet with capillary groove
Profiled sheet with capillary groove

Profiled sheets are distinguished by the height of the corrugation, the presence of a capillary groove and the variety of colors of the polymer coating. The shape of the corrugation of the corrugated board is trapezoidal and sinusoidal, less often a sheet of rounded and rectangular shape is found.

A capillary groove is necessary to remove moisture from the roof when joining overlapping profiled sheets, and a polymer coating provides a protective and aesthetic function. Due to the variety of colors, you can mount your own roof of any color, giving a particular personality to the home.

Important! All data on the corrugated roofing sheets is reflected in its marking. For roofing, corrugated board with the letterH- carrier is used, and the next series of numbers means a number of characteristics.

For example, corrugated board is marked H-60-0.7-840, which means:

  • professional flooring for a roof;
  • corrugation height 60 mm;
  • thickness of metal profiled sheet 0.7 mm;
  • mounting width of the sheet is 840 mm.

The choice of a profiled sheet is made depending on the purpose of the building under construction and the climatic conditions of the area. Unheated rooms, sheds , hangars and other utility buildings can be covered with inexpensive galvanized corrugated board without a polymer coating. Residential buildings, where the angle of inclination of the roof is more than 10 °, must be covered with a profiled sheet with a polymer coating, a large thickness of metal and high corrugation.

For fastening profiled sheets, use self-tapping screws to match the color of the roof
For fastening profiled sheets, use self-tapping screws to match the color of the roof

Important! When choosing a professional sheet, pay attention to its appearance. The surface of the material should be smooth, without cracks and scratches, with an intact protective film.

An important parameter when choosing a grade of profiled sheet is the angle of the ramp. The larger the slope angle, the larger the roof surface, the higher the windage, but the lower the snow load, since snow easily rolls off a sloping roof. In order to avoid deformations, the roof of a small slope needs to be covered with a profiled sheet of greater thickness.

Necessary tools and materials

 Before you cover the roof with a corrugated roofing sheets with your own hands, you need to decide on the tool and purchase the appropriate materials. For self-installation of roofing from corrugated board, you must have the following:

  • cordless screwdriver ;
  • construction stapler;
  • electric shears and hacksaw for metal;
  • building level;
  • roulette wheel;
  • markers of different colors;
  • gun with sealant;
  • drill with a set of drills;
  • self-tapping screws with sealing washer;
  • skate for joining sheets;
  • a metal brush for removing chips;
  • wind bar from rainwater;
  • roof holders made of profiled sheet.
Tools for installing professional sheets: 1 - screwdriver, 2 - hammer, 3 - rubber hammer, 4 - brush for metal, 5 - tape measure, 6 - rail, 7 - marker, 8 - water level, 9 - scissors for metal , 10 - pliers
Tools for installing professional sheets: 1 – screwdriver, 2 – hammer, 3 – rubber hammer, 4 – brush for metal, 5 – tape measure, 6 – rail, 7 – marker, 8 – water level, 9 – scissors for metal , 10 – pliers

Work stages and material calculation

 The main stages of roofing with your own hands using professional sheets are:

  • roof design;
  • lathing installation;
  • determination of the size and quantity of the profiled sheet;
  • determination of components and accessories;
  • installation of a profiled sheet on the roof;
  • installation of wind bars, ridge and snow retainers.

Before covering the roof with a professional sheet, you need to decide on the project. This can be done with the help of specialized construction programs or can be calculated independently. If you have to cover a complex roof with many slopes at different angles, it is best to use ready-made programs or contact architects. With a simple design, the question of how to cover the roof with a corrugated roofing sheets without a special program is solved by conventional mathematical calculations.

Roof prepared for laying corrugated sheets
Roof prepared for laying corrugated sheets

Material calculation

The basic formula for calculating the number of profiled sheets to cover a simple roof is as follows:

N=D/L,

Where N is the number of profiled sheets for laying the horizontal row, D is the length of the slope of the roof, L is the useful (installation) width of the sheet. In the final calculation, the parameter N is rounded up.

Important! Speaking about the dimensions of the corrugated roofing sheets for the roof, it must be borne in mind that the calculationsdo nottake into account the general, but the working, i.e., the useful sheet width. In this case, the overlap of the material is equal to the difference between the total and useful sheet width.

For a simple roof, the number of required profiled sheets can be calculated independently
For a simple roof, the number of required profiled sheets can be calculated independently

The size of the horizontal overlap depends on the angle of the slope and is determined by a special table:

Ramp angle Up to 15 degrees 15 – 30 degrees More than 30 degrees
Nakhlyost 20 cm and more 15 to 20 cm 10 – 15 cm

The vertical overlap depends on the brand of the selected corrugated board and it needs to be covered with an overlapping wave.

The brand of corrugated board plays an essential role in determining the size of the overhang: the greater the height of the corrugation, the longer the overhang should be. With a short overhang, leakage of water under the roof can occur.

After determining the number of horizontal profiled sheets, you need to calculate how many such rows are needed to cover the roof. This value is calculated based on the length of the slope of the roof, eaves, roofing sheet, the size of the overlap, as well as taking into account additional elements.

How to mount a corrugated roofing sheets on the roof. DIY installation features

Before you start fixing the corrugated board with your own hands, it is advisable to view the appropriate training videos and photo materials. Roofing of the roof with a profiled sheet should be started after installing the end boards, from the bottom row, with an expectation of the size of the overhangs. Afterwards, you need to attach the end plate of the profiled sheet (wind corner) to the upper end board. Then, using self-tapping screws, install the cornice strip.

Important! The installation of the cornice strip should be made below the waterproofing carpet. Then the condensate formed will fall into the catchment or on the blind area .

You can cover the roof with professional flooring in two ways: cover the previous sheet with the next, or put it under the bottom. You need to fasten the profiled sheets to the crate with self-tapping screws with EPDM gasket to protect against moisture. The number of screws is calculated based on the formula: 5-7 pcs. on 1 sq.m of a roof. For fastening profiled sheets, screws are screwed into the upper profile wave with a step of 0.5 cm.

Useful advice!  To avoid deformation of the gasket, try to tighten the screws carefully and without additional effort.

It is important to screw the screws into the corrugated board correctly
It is important to screw the screws into the corrugated board correctly

You can fix corrugated roofing sheets in a four-block or three-block way. In the first embodiment, the installation sequence is as follows:

  1. The first sheet of the first row.
  2. The second sheet of the second row.
  3. The second sheet is the first row.
  4. The second sheet of the second row.

In the second embodiment, you need to fasten the sheets according to the scheme:

  1. Two sheets of the first row.
  2. One sheet of the second.

Installation of additional elements. Snow retention

 After installing the corrugated board, it is necessary to install those additional elements that were not fastened during the roofing: ridge, ebbs, angle strips, snow retainers, etc.

Given our climatic conditions with harsh and snowy winters, snow retention is an important element of the roof. Due to the high heat capacity of the corrugated roofing sheets, flooding of the lower layer of snow occurs and there is a danger of an avalanche-like descent.

DIY installation of snow retainers allows you to evenly distribute the load on the roof, ensuring safety and increasing thermal insulation due to snow cover. Snow retainers also protect the profiled sheet from damage by solid particles contained in the snow.

Snow retainers will protect in winter from the removal of snow mass from the roof
Snow retainers will protect in winter from the removal of snow mass from the roof

Useful advice! Considering the cost of snow retainers, you can mount them not over the entire roof surface, but in the most important places: above the paths and entrances to the building.

Snow retainers have different sizes and designs, the choice of which is determined by the average height of the snow cover of the area, as well as the features of the roof. It should be remembered that the installation of snow retainers does not exempt from the regular release of the roof from snow.

Based on the information received and the videos presented, you can easily and quickly create a beautiful roof of your own home yourself.

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