Clay, stone and metal - By: Professor Tiratsyan

Consumer properties of rigid roofing materials often vary greatly. Today we'll discuss these properties, as well as updates in this market segment of building materials.

Metal

We begin with an overview of the metal seam roof, which still retains the enduring popularity among homeowners. Standing seam roof of the call sheet or rolled galvanized steel and roofing made of nonferrous metals, in which individual elements are connected with the cover seam.

Once upon a time to create a seam roof was used non-galvanized (black) steel. However, the black steel roof is a very significant drawback: it is exposed to corrosion, and therefore requires a regular, every two to three years of painting. So now the black steel roof is almost never used. But the galvanized steel is used very widely.

The first thing to say about the availability of the roofing material, which can be attributed to the economy class, because it costs amount to only a small share of total construction costs. Another positive feature galvanized steel - Easy to install. This material allows you to cover the roof of any complexity, securely close the skate and valley, to circumvent the issues of chimneys, etc. And the galvanized steel can be used not only as a roof covering, but also to create a drainage gutters, downpipes, eaves and other additional elements. Although I must say, it must deal with professionals. In theory, upright, recumbent, single and double folds are simple but in practice the quality of their run could only professional roofers.

gutter heaters

Galvanized sheet steel is produced in sheets or rolls. Steel sheet with both sides covered with a layer of zinc, which protects the material from corrosion. The first class of the zinc coating has a thickness of 18-40 microns, the second - 10-18 microns. The thickness of the sheet of galvanized steel ranges from 0.45 to 1 mm. For roofing is most commonly used steel 0.5 mm thick. For eaves and gable overhangs, as well as details of gutters is recommended to use a thicker steel - 0.6-0.7 mm. Galvanized steel is usually supplied sheets of 2-3 square meters. m The approximate cost of galvanized sheet direct area of 2 square meters. m at a thickness of 0.5 mm - 300 rubles. per sheet.

For additional protection against corrosion of galvanized steel using special polymer coating. This sheet has a layered structure: steel, a layer of zinc primer, protective paint on the inside of the sheet and a layer of colored resin on the outside. To increase the stiffness of the sheets of galvanized steel roof is subjected to profiling, these sheets are called profiled. Produce corrugated sheets of galvanized steel with polymer coating as well as without.

For installation of a steel standing seam roof, use fasteners: nails, screws, capping. These details should also be made of galvanized steel, or they will quickly rust, which will contribute to leakage.

But the copper roof can be safely attributed to the elite roofing materials. Copper and looks noble, and is used for many decades, and is worth a lot. However, the relative high cost of copper roofing over the years paid off, since, as calculations show that operating costs for this roof are the lowest. Copper roofing pays for itself in comparison with other materials in 30 years, while it is 150 years or more. With good ductility, copper roof arrangement is suitable for any degree of complexity. In particular, it is good for roofs with a slight bias, as the roof of a little snow layers formed.

The basis of the amount of copper roofing sheets, which are held together by folding, and are attached to the base by moving capping, which increases the reliability of the roof. This method of installation does not involve cutting holes in the case of nails, and therefore protected from the weather becomes more reliable. Protection against aggressive external environment also provide copper oxides formed on the surface: they create a patina, that everything else looks noble and stylish.

In the past, produced a classic copper roof with a yellow shiny finish. Over time, cover darkened, becoming oxidized copper-brown color, and then took on a noble shade of malachite after the formation of patina. In the future, the patina protects the roof from corrosion, but its appearance had to wait a long time, years 10-15. Now the consumer has to choose between the classic, oxidized, patinated copper and tin for the roof.

Copper roofing is highly resistant to atmo-sphere rainfall and other factors. It is easily amenable to stretching and bending. The service life of the roofing is often higher than the life of the building. Finally, it should be said about the full environmental safety of this material, from which, as we know, are still manufactured household items, including utensils. Available in copper roof thickness of 0.6-0.8 mm, mostly rolls 600 mm wide. Cost per square meter of the material depending on the thickness of 1500-2000 rubles.

In addition, the market offers a variety of new roofing, copper-based, in particular roofing tiles made of copper, which does not darken with time and is not covered by patina, and for many years on the roof shines like new. This is achieved by coating tiles special polyurethane varnish film which protects the copper from weathering, and hence from oxidation. The form of the copper roof tiles may be varied: square, rectangular, etc. The price of this tile roof is about 25-40 euros per square meter.

Popular styling

It seems that now only the babies do not know what metal - it is a clever pastiche classical ceramic tile. Nevertheless, every year this stuff is becoming more popular, and for good reasons.

In comparison with natural metal tiles are much easier - a square meter weighs approximately 4-5 lbs. So, it's easier and rafter system, that is a step rafters can be increased significantly, and thereby save on wooden building materials. The cost of metal is also lower than ceramic: 250-400 rubles. per square meter (subject to quality).

The basis metal is galvanized steel, painted the back of the sheet of protective paint, and applied to the front color coated (polyester, plastisol or pural). Polymer layer in this case serves as a protective and decorative function, and a variety of colors there are dozens. The richness of colors can be attributed to the undoubted advantages of the metal. The advantage can be considered and that the metal sheets are easily cut, and into small pieces, so to cover the roof of the complex form (note, however, that with this installation is always a lot of waste, so the cost of the roof rises, sometimes dramatically). The lack of metal - its noisy in the rain. In principle, this effect can be eliminated by properly arranging underlay the cake, but, of course, will inevitably rise in the roof structure.

Metal roofing is available in sheets of a width of 1.1 m (length may vary). Mounting plates for long pitched roof rather complicated, and if from the ridge to the eaves for more than six meters, it is recommended to use instead of one long two short sheet.

As for new products in this area, we can mention that appears on the market a few years ago, composite metal. Its principal difference is the coating of steel alyumotsinkovoe profile page. Alyumotsink - an alloy consisting of 55% aluminum, 43.5% zinc, 1.5% silicon in performance is 3-4 times more ordinary galvanized steel. After his application sheet apply a prime coating, applied over the acrylic adhesive layer, granular basalt, as well as clear acrylic coating that promotes self-cleaning of the roof from dust and dirt. Among other things, this design provides reliable protection from the noise of rain. And composite shingles are six times more slowly corrode than metal tile from galvanized steel.

Classic set

In this set of properties has a ceramic tile. Yes, this is an expensive roofing material: the cost of ceramic tiles from European manufacturers may be 70-80 rubles. one sheet. And as to cover one square meter of roof required from 10 to 15 tiles, it is up to 1,000 rubles. and more expensive.

A distinctive feature of the natural tile is its heavy weight. One can not argue that this disadvantage - after all the heavy stuff, and partly from the hurricane insured, and mechanical influences. But the fact remains that under the ceramic tile is needed reinforced truss system. In practice, this step is expressed in the rafters of 0.6-0.9 m, which leads to greater consumption of building materials. With a slope of 10-20 degrees should pave the double waterproofing, and for laying tiles on a roof with a complex profile requires a large number of additional elements, which also increases the cost of construction.

And yet many homeowners do not stop the big spending, as a natural ceramic tile looks solid, but is a long time. In some homes in Europe, tiled roof and over a hundred years, the durability of this material is exceptional. Yes, and repair in which case such a roof is quite easy - just replace the damaged items.

In principle, all of the above applies to the cement-sand tile, which was once considered a novelty, but now had become, we can say it is a traditional roofing material. New technology is primarily affected the diversity of shapes and colors, which is expanding all the time. Clay has led to natural terra cotta tile color. But since the standard "paint" is not satisfied with all manufacturers began to produce ceramic (as well as cement-sand tiles) of different colors that can satisfy any request.

Another innovation - tiles, porcelain tiles manufactured by technology. Porcelain tiles are ceramic materials by compression under high pressure, followed by firing. They are strong like granite (hence the name). This roof tiles is not inferior to the characteristics of the porcelain facade tiles, but differs in size and shape: it is either a rectangular 40 cm 25% or 40% of a square centimeter of thickness 40 cm. What is important - ceramic granite tiles from the roof is easier than from a natural or cement-sand tile. The disadvantages include the fragility of the material during transportation and the difficulty in handling and cutting. But with the right and professional approach to working with them easy to handle.

Slate, but the other

Actually, in Russia, called the slate roofing material, which is a non-metallic corrugated sheets, usually asbestos. Translated from the German Slate (Schiefer) means the shale. Over time, appeared non-asbestos slate, evroshifer on the asphalt, metalloshifer and slate roofing slate, which we want to say a few words.

Slate tile is a different shapes and sizes. High quality and durable, it opens up great possibilities for the design because of the natural structure and a soft matte luster. Its range of colors - from gray to black, and from dark brown to dark green. A slate roof can serve more than one century.

Slate Slate has a good sound insulation, no noise when wind and rain, is not deformed by changes in temperature and humidity and protects the roof from the weather. It is frost resistant and environmentally safe material, because a hundred percent is composed of natural materials. That's just it can not be called cheap. For example, 40% tile 30 cm can cost 3-4 euros per share, that is 25-35 euros per square meter. On the other hand, this roof looks very stylish and original - that's why more and more oil shale can be seen on the roofs of modern houses.

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