Pros and cons of metal and ondulin - determined in the choice

The final stage of the erection of the roof - covering it with roofing materials. Currently, the choice of these materials is extremely large - from the cheapest to the elite and very expensive. However, the most popular are the roofing materials of the middle price category. When choosing a roof covering, buyers often have a question: what is better, metal or ondulin?

Both these materials are durable enough, they have a smart appearance and are easy to install. Due to these qualities they are very popular among developers, and the choice of "metal tile or ondulin" depends only on the characteristics of the structure and personal preferences. Both metal and ondulin have a number of features that can influence the choice of roofing. Below are their features, advantages and disadvantages.

Features of metal tile

Metal tile is a roofing profile made of sheet iron, imitating the shape of traditional ceramic tiles. A sheet of iron with a thickness of 0.45-0.55 mm is passed through rolls of a special shape, after which they are first coated with zinc and then with a polymer dye. As a result, the metal sheet has a double protection: zinc provides anodic protection of iron, shifting the process of electrochemical corrosion to itself, and the polymer coating protects against zinc damage itself. This double coating is resistant to small scratches and in case of damage it is easily repaired by applying an aerosol paint of the appropriate color.

The width of a sheet of metal tiles is usually about one meter, and the length can be ordered as standard - 6 meters, and cut along the length of the slope. This greatly simplifies installation and shortens the time for adapting the sheets. In addition, when ordering sheets in the size of the slice of the metal tile is covered with a protective film, which increases the service life. Lay the metal on the wooden crate and fastened with special screws in the tone of the coating. Self-tapping screws have a sealing washer, ensuring the tightness of the roof. When covering the roof of a complex shape, the metal can be cut using a jigsaw or metal scissors. Use for these purposes, the bulgark can not be - in the place of the incision the polymer coating burns, and the sheet soon begins to rust.

The advantages of metal tiles include:

• High strength to snow and wind load, which allows it to be used on roofs with almost any angle of the ramp;
• Durability - the service life of high-quality metal tiles is from 25 to 50 years;
• Smart appearance and bright colors, not fading in the sun, a wide range of colors;
• Resistance to corrosion, provided that the coating is preserved;
• High fireproof properties - metal roofing does not burn and can withstand an open fire load for 1 minute without the risk of damage to wooden structures and crates;
• Metal tile does not change its properties at any temperature;
• Thanks to its smooth surface, it is easy to clean from snow.

Disadvantages of metal tile:

• High degree of sound transmission: the noise of falling drops during rain will be clearly audible in the attic floor;
• Propensity to form condensation and frost when insufficient roof insulation;
• Installation of metal roofs on the roof of a complex shape is rather complicated and requires carefulness, as well as the use of a large number of additional elements, planks of junctions;
• Deep scratches, as well as large damages to the polymer coating, can cause corrosion. They must be filled in time with special paint from the can. You can buy paint from a metal tile manufacturer.

Features of ondulin

Ondulin is a profiled roofing material made of cardboard impregnated with high pressure bitumen with the addition of dye, plasticizers and reinforcing fibers. As a result, wavy sheets are obtained, in shape resembling slate and having high hydroprotective properties, plastic, easy to assemble. Ondulin has several color solutions, shades - soft and muffled, not reflecting light.

Mounted on a wooden crate with special nails with a sealing head in the upper wave. Due to the low weight of the ondulin, the lath can be carried out in 50 cm steps. If necessary, the ondulin can be easily cut with a conventional hacksaw, and its flexibility makes it easy to attach it to the roof of a complex shape. In the cold, the ondulin becomes brittle, its mechanical strength decreases, so it is not used for roofs with a small angle of slope due to the possible large accumulation of snow.

Advantages of the ondulin:

• The durable and durable material, the warranty period is 15 years, the service life with proper installation and operation is from 25 years;
• The velvety surface and soft shades make it possible to give an attractive appearance to the roof of the ondulin;
• The material is resistant to microorganisms, it has high waterproofing properties even in places of small damages due to bitumen impregnation;
• Ondulin is absolutely ecological, unlike slate containing asbestos;
• Ondulin has high noise-absorbing properties, excellent dampening of the noise of droplets, so it is often chosen to cover the roof of houses with a mansard floor;
• Does not form condensation.

In this case, the ondulin has drawbacks:

• Bitumen, which is part of ondulin, is combustible, therefore the material does not have fireproof properties;
• On the cold, the ondulin becomes brittle, it softens on the heat, which makes its installation and maintenance impossible in the cold and hot season;
• In the sun, ondulin fades over time, loses its brightness;
• The velvety surface holds up snow, dust, debris from trees, so the roof should be cleaned from time to time, otherwise moss and lichens grow on the surface.

The choice of roofing

After considering the features of these materials, it is possible to draw conclusions:

1. Ondules are not recommended for roofs with a slope angle of up to 15 degrees in regions with a lot of snow. It is better to cover such roofs with metal roofing.
2. The roofs of buildings that have a mansard floor, it is better to cover with an onduline, on the roof of the metal roof, you will hear the sound of drops during the rain.
3. When using stove heating, the roof made of metal tiles will provide the best fireproof properties.
4. On the roofs without insulation at a low temperature on the underside of the metal tile, condensate and ice will form, and in spring, when it thaws, water will flow to the attic. In this case, it is better to choose ondulin, it does not have this disadvantage.
5. Mounting of metal roofs of a complex shape requires skill and the presence of an electric jigsaw. Ondulin in this case is easily cut with a hacksaw and slightly bent.

In all other cases, these materials will provide equally good protection against precipitation and wind, so their choice is determined only by personal preferences. When buying any of these roofing coatings, you need to make sure of their quality and authenticity in order to avoid forgery.