Trade
NORTIA PRODUCTS s.r.o. has a specialized staff dealing with consultancy and sale of materials used for roofing.
We work with the largest producers, we deliver the highest quality materials at the lowest possible prices. We have specialized in sheet metal, titanium-zinc and aluminum. In our offer you will also find all roof accessories, such as: roof windows, gutters, roofing membranes or many other necessary elements needed to build the roof.
Sheet metal coatings are increasingly appearing on roofs.
They are characterized by lightness (even ten times smaller weight than covers made of traditional ceramic tiles), easy and quick assembly, relatively low price and the possibility of obtaining any shape. The sheets can be laid on roofs with very different slopes (in the case of steel and corrugated aluminum, the interval is 3-90 degrees). For comparison, ceramic tiles can be laid on roofs with an inclination within a much smaller range (31-45 degrees).
Nowadays, newer technologies are being introduced, which improves the quality of tin roofs.
Their popularity is also increased due to their greater durability than ever, as well as due to the improved appearance, because the aesthetics of the roof is very important.
The materials used for light metal roofing materials are:
Roofing is most often made of steel.
There are steel coatings on the market: galvanized (usually both sides), galvanized coated (pural, plastisol, polyester or PVDF), aluzinc (steel combined with an alloy of aluminum, silicon and zinc), as well as coated steel coated with mineral powder. Aluminum makes the steel resistant to corrosion.
The introduction of coatings significantly increases the corrosion resistance of steel, which is most important in the case of sheet metal coatings. In addition, the coatings protect against the harmful effects of the environment (mainly UV radiation), and also have a significant impact on the durability of the material (increase resistance to mechanical damage, such as scratches or cracks). An important advantage is also the appearance of coated steel. The coatings protect against fading coverage and increase aesthetics.
The highest durability and quality, and at the same time the price is characterized by the sheets with sprinkles - mineral or ceramic.
An important advantage of this material is good acoustic protection, which is of great importance during heavy rain. Matt and rough surface in the winter prevents snow from sliding off the roof, while the finishing layer composed of rock aggregate, covered with acrylic resin with the addition of fungicides, protects the roof from overheating in the summer and against moss growing on the roof, algae and fungi. Cupcakes with sprinkles usually resemble ceramic pigments, wooden shingles or stone slates.
Their thickness, varies from 0.5 to 0.6 mm, while their weight ranges from over 4 to about 7 kg / m2
(steel roofing is more than 10 times lighter than roofing made of ceramic tiles).
Due to the fact that the durability of a steel sheet is only about 30-50 years, special protective coatings are used. It can be concluded that coatings made of raw steel do not exist.
They can be easily formed and their processing is quick and easy.
A very important advantage is that copper sheets do not need to be maintained and cleaned. Over time, the sheet is covered with a natural patina of green color, which makes the roof look interesting. However, unfortunately, high quality combines with high prices. It should also be noted that copper enters unfavorable chemical reactions with various materials. Therefore, when installing additional elements, such as gutters, one must remember that copper should not be combined with with zinc, titanium or aluminum.
Copper sheets are the most durable of all materials intended for roofing.
They can fulfill their functions even 300 years, because they are very resistant to harmful weather conditions, i.e. Corrosion. Their thickness is about 0.55 - 0.65 mm, while the mass oscillates around 5.0 kg / m2. In addition, copper sheets are characterized by flexibility and plasticity.
MIt can be combined with aluminum and lead elements, as well as with galvanized steel, while contact with bituminous materials and with copper is not recommended.
It should be mentioned that zinc-titanium sheets are characterized by a relatively high price and a shortage of qualified fitters, so they are used quite rarely.
The titanium-zinc sheet is resistant to corrosion and its durability is estimated at approx. 80 years.
The thickness of zinc sheets is about 0.5-0.7 mm, while the weight ranges from 4.5 to about 6.0 kg / m².
The sheets for roofing materials differ not only in the material from which they were made, but also in the shape.
Flat plate is usually made as zinc, galvanized steel, aluminum, zinc-titanium or copper.
In the case of the first three, previously used sheets in the raw form, however, due to their limited durability, currently used materials coated with protective coatings (polyester, acrylic, pural, plastisol, PVDF). Flat sheet is sold mainly in the form of sheets with standard dimensions of 1000 x 2000, 1250 x 2000 and 1500 x 3000 mm, as well as in the form of coils with a width usually in the range from 500 to 1000 mm.
The sheets of this type are laid on the formwork and connected between each other to single or double seams (usually in the so-called standing seam, formed from the curl of the sheets). They are attached to the roof plating using special handles (embroidery, frogs, scales). These elements ensure a slight displacement of the sheets, so that no stresses occur in the cover, which may include deform sheets.
Currently, flat sheets are used for roofing relatively rarely, however, the roofs are formed on roofs with a slope of 10 to 90 degrees. They are usually used as a material for flashing (elements that complement roofing).
The covers made of aluminum sheets are the lightest of all tin roofing materials.
Their maximum weight is only about 3.0 kg, while the thickness varies from 0.6 to 0.7 mm. They are characterized by ease of machining, resistance to corrosion and mechanical damage. An additional polyester coating increases the resistance to negative UV rays.
Profiled (extruded) sheets are used for roofing more often than flat sheets.
One of the reasons is their aesthetics, because the embossing makes the roof look more interesting. Extruded sheets usually appear on roofs in the form of roof tiles or trapezoidal sheets.
The main advantages of profiled sheets are their increased stiffness compared to flat sheets,
and thus greater resistance to deformation, as well as increased resistance to thermal elongation.
Roofing tiles create elegant coverings that combine modern technologies with tradition, as they usually resemble traditional ceramic roof tiles.
There are also those that are embossed on the pattern of wooden or bituminous shingles. Their aesthetic appearance, lightness and low price make them very popular. However, the higher price and weight make them less frequently used.
Typically, roofing tiles are used on roofs with a slope of more than 9 degrees, if they are made of large sheets, while panels, which shape resemble one row of tiles (so-called jednomodułówki), can be laid on roofs with an inclination greater than 17 degrees. The maximum slope of the roof is 90 degrees, so roofing sheets can be used, for example, to cover the side walls of dormers.
Roofing tiles are usually made of galvanized steel sheet, with Aluzinc and covered with plastic (polyester, pural, PVDF, plastisol).
There are also those that are covered with mineral or ceramic coating. Their task is to significantly improve the durability of the material. Embossments in this type of material are in the range of 37-57 mm (the greater the depth of pressing, the greater the stiffness of the covering).
The high stiffness makes the folded sheets mostly placed on large industrial buildings. These coatings do not require a complete roof decking.
They are placed on a wooden or possibly steel grid, but fastened with screws, screws or hooks. The folded sheets are made in the form of sheets with a standard width of 0.9-1.1 m and a length of 1.25-3.0 m. It is worth noting, however, that sheets made of durable acrylic have a length of up to 7.0 m.
The corrugated (folded) sheet is characterized by lightness, easy assembly and aesthetic appearance.
Usually it is made of galvanized and coated steel, zinc or aluminum sheet.
The trapezoidal sheet is an example of a corrugated sheet, the embossing of which has the shape of a trapezium.
Covering of this type of material has an aesthetic appearance, is the easiest to assemble, requires the use of a relatively small amount of material, allows the use of thermal insulation, and is durable, so you can stack them on the grate (do not require full boarding).
Therefore, these types of materials are recommended as roofs with a large surface area, less often as coverage of small single-family houses. It should be added that trapezoidal profiles are used in the roof or façade version, intended for wall cladding.
It is usually made as galvanized or coated.
The depth of pressing trapezoidal sheets varies in the range of 18-115 mm, thanks to which they can obtain very high stiffness and resistance to deformation.
Nortia Products s.r.o.
Holandska 878/2Brno headquarters
Holandská 878/2, 63900 BrnoBranch Kuřim
Blanenská 1997/103a, 66434 Kuřim