How to fix roofing on the roof - step by step video and

Roof of profiled metal is considered affordable, simple to perform, but reliable construction, often used in private housing, construction of industrial premises. The ease of installation, which does not require a specialized tool, makes this option of roofing attractive for those who are engaged in construction independently. However, inexperienced craftsmen often do not know how to properly fix corrugated roofing. As a result of non-professional actions, the life and moisture-proof properties of the material are significantly reduced. In this article we will describe how to properly perform the installation of corrugated board, as well as what fasteners to use.

Characteristics of the material

Professional sheet (professional flooring) - the relief sheet of metal which is received by method of cold hire. It is made of high-quality galvanized steel, which is applied a protective polymer coating of Pural or polyester. Professional sheet produced in the form of sheets of standard sizes, in the form of a profile resembling a traditional slate. This versatile material is used to overlap the roof, wall cladding, construction of garages, the construction of temporary and permanent fences, due to the high mechanical strength, environmental friendliness, resistance to corrosion. Professional sheet is divided into the following types:

• Wall. It is intended for wall cladding, light fencing and removable formwork. The height of the corrugations of a professional flooring wall grades is only 8-44 m, and the thickness of this material is less than that of the universal or carrier. Wall professional sheet is cheaper, but rarely used for roofs.
• Carrier. This type of sheeting is distinguished by reinforced stiffening ribs, which make the coating hard, durable. It is used for the construction of hangars, for the construction of a capital roof. The height of the wave bearing profiled is 57-114 mm.
• Universal. The profiled sheet of the universal type has an average thickness and height of the profile wave. This multifunctional material is often used during roofing work.

Note! Fastening of corrugated roofing begins with the choice of the right material. Skilled craftsmen recommend using material with a corrugation height of 20-60 mm in accordance with the climatic conditions of the construction region. And the thickness of the coating is determined by engineering calculation in the design of the roof truss frame.

Fasteners

Not knowing exactly how and how to strengthen the corrugated board, beginners make many mistakes that negatively affect the quality and durability of the roof. The main slip, which is typical for non-professional roofers, is the wrong choice of fasteners. To fix each sheet of corrugated sheet on the crate requires 11-12 screws, each of which is a gap in the waterproofing layer of the roof. Therefore, the installation of corrugated board is carried out using special fasteners:

1. Galvanized screws with a wide cap. These fasteners are made of galvanized steel, which is highly resistant to corrosion. If you fasten a sheet of roofing material to the crate using a conventional screw, the fastener will come out of a standing before the professional sheet. The wide cap prevents moisture from penetrating into the hole made, but experienced craftsmen additionally use rubber pads for this.
2. Self-tapping screws with rubber or polyurethane press washer. Special roofing screws, equipped with a washer of sealing material, perfectly protect the roof from moisture penetration in places where the fastening of the coating to the crate was carried out. Fixing corrugated roofing screws is more expensive than using simple galvanized self-cutting screws. Painted fasteners that match the color of the profiled sheet are very popular.

Important! Manufacturers and professional roofers that need to fix the professional sheet on the crate need self-tapping screws. For fixing sheets of this material can not be used welding machines or nails. Welding damages the polymeric coating of corrugated flooring, exposing the metal vulnerable to corrosion. Nails are not recommended to use, as they do not withstand strong gusts of wind, which leads to a breakdown of the roofing material.

Fastener rules

Before you mount the roofing on the roof with your own hands, you need to study the recommendations of manufacturers and professional roofers to work with this material. The quality of installation of roofing depends on the life and reliability of the roof. Profiled sheets are laid on the stingray of the slope overlapping with mixing between the rows in order to prevent the formation of long vertical seams that can pass moisture. At fastening of a professional flooring the following rules are observed:

• If the slope of the roof slope is 15 degrees or less, a horizontal overlap between the sheets should be at least 20 cm. For shallower roof structures, you need to increase the overlap by 5 cm and also treat the joints with silicone or thiokol sealant.
• If the roof has a slope of 15-30 degrees, then the professional sheet is laid with an overlap of 15-20 cm. This angle of inclination of the slope is optimal for sheeting.
• For roofs with a slope of more than 30 degrees, an acceptable horizontal overlap between the sheets is 10-15 cm.

According to the instructions for working with corrugated sheet screws screwed at right angles to the bottom of the wave. Fastening of the material through the crests of the wave is allowed only when mounting the ridge profile.

When fixing corrugated screws, you need to pay attention to the length of the cutting part of the fastener. It should not exceed the thickness of the professional pack bundle by more than 5 mm. The optimum diameter of the roofing screws - 4.8-6.3 mm, and length - 19-250 mm.

Mounting technology

Roof pie made of corrugated roofing consists of 3 layers: vapor barrier, waterproofing and coating directly. Waterproofing material stripes fit on the rafter legs without tension and fixed with nails or construction stapler. The professional sheet is laid on a continuous or lattice crate with a step between the slats of 15-25 cm in the following order:

1. The eaves of the roof slope are leveled so that it forms a flat horizontal line.
2. Laying sheets start from the bottom row from the eaves of the roof with a mix of 5-20 cm downwards for the visor equipment.
3. Sheets of a professional flooring raise ropes so as to avoid damage. From two wooden bars or an inverted long staircase they equip peculiar runners with which you can conveniently and carefully move the roofing material.
4. The first sheet is set so that the first is not a wave, but a groove to prevent moisture from leaking inside the truss frame.
5. Sheets are laid with an overlap of 1-2 waves to prevent melting of thawed and rainwater in the connecting seams, fixing each blade with 10-11 self-tapping screws.
6. Fasteners размещают по периметру листа профнастила, посередине, а также в местах соединительных швов.
7. Torah is a series of corrugated flooring scrapping with the overlap of the first 15-30 cm. This technology prevents the formation of long seams that are vulnerable to moisture penetration.

Masters who are wondering how to properly fix the profiled flooring often also don’t know that it’s impossible to use grinders to cut sheets of this material in size. Since this abrasive tool makes the edges serrated, it damages the polymer coating. It is recommended to cut a professional sheet using an electric jigsaw, scissors or a hacksaw for metal.

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