Grain is a Russian manufacturer of window structures

Grain is a domestically produced profile that is adapted for use in our climatic conditions. The range of systems allows you to assemble windows with different costs and thermal characteristics. These structures are designed for glazing residential, commercial and municipal buildings. Grainne's profiles began to be released in 2008. A plant for these purposes was built in Ufa with the direct participation of Austrian specialists. Over the 10 years since its opening, the company has increased its production capacity almost 4 times. This fact indicates the demand for systems from the Grain brand on the Russian market.

The Grain company supplies systems to all regions of the Russian Federation, where 30 of its dealerships operate, as well as to Belarus and Kazakhstan. The Ufa plant for the production of plastic profiles is one of the ten largest enterprises in Russia that produces components for PVC windows. In the production of Grain systems, Italian PLASMEC mixers and German Krauss Maffei extruders are used. To date, all the main stages of profile production have been automated, which has reduced the influence of the human factor and increased the quality of products from the Grain brand.

Grain profile systems

The Grain profile is represented by four series: Prestige, Nordprof, Lider and Vektor.
They differ in the thickness of the outer and inner walls, as well as thermal characteristics. These parameters determine their cost. The Nordprof and Vektor series consist of two systems with installation depths of 58 and 70 mm. Lider also includes two types of profiles, but their depth is 58 and 102 mm. The Prestige series is presented in a single version - a 70mm system with 5 cameras. For the manufacture of all listed profiles, a PVC mixture with a special recipe is used. Experienced specialists from the world famous Kronos, OMYA, BASF, Baerlocher, Reagens, Arkema and Sachtleben were involved in the development of the plastic composition. For storing the mixture, conditions have been created that eliminate the possibility of condensation. Feeding absolutely dry raw materials into extruders helps improve the quality of profiles. Thanks to the balanced composition of the mixture and adherence to technology, Grain windows have several important advantages:

• frost resistance up to -60°C;
• the ability to maintain a snow-white color for decades;
• high wall strength, exceeding GOST requirements by 2-4 times;
• maintaining the hardness of the plastic when heated to +80°C.

For the assembly of complex-shaped structures from Grain profile systems, auxiliary (additional) elements have been developed. The kit includes expansion, connecting, corner, bay window and stand profiles. The listed elements are universal - they were developed for the Lider system, but are also compatible with other Grain profile systems. Thanks to this, manufacturers can solve complex construction problems and glaze openings with any geometry.

The strength of welds in all series of profile systems from the Grain collection is 2.5 times higher than the regulatory requirements from GOST. Thanks to this, mechanical damage to structures in areas of rigid connection of window elements is almost completely eliminated. The reliability of structures assembled from Grain systems is facilitated by special protrusions inside the profiles. They help to better hold the fittings and increase the reliability of the fastenings.

The Lider and Prestige systems are complemented by body-dyed profiles in brown and caramel colors. In addition, it is possible to laminate the entire Grain collection with RENOLIT EXOFOL films, which protect the plastic from overheating when exposed to direct sunlight.

Declared features of Grain profiles

The entire range has a number of common qualities, which allowed the company to occupy one of the leading positions in the Russian PVC profile market. These include:

1. Resistant to temperature changes. The variability and unpredictability of the Russian climate place special demands on the thickness of the front walls and heat transfer resistance. Grain profiles perform their functions without compromising their safety margin both at -60 and +80 degrees.
2. Soundproofing. Even with the smallest number of double-glazed windows among the proposed profile types, the noise level will be reduced to 26 dB.
3. Sealing. The profiles are coated with thermoplastic elastomer, a seal that is highly resistant to UV radiation, ozone and most common chemicals.
4. Safety. Any window profile from the assortment exceeds the requirements of Russian GOST in terms of characteristics at least 2 times, and in the maximum configuration - 4 times. Special protrusions, the distance of the fitting groove and the thickness of the profile will become quite a serious obstacle when trying to dismantle or damage the profiles.
5. Reliability. Grain guarantees 40 years of service without the need for replacement.

Check out the section: Insulation of balconies: what are the advantages of turning to professionals?
According to reviews from those who have installed Grain profiles in their homes and offices, their products are perfect for those who want the maximum “European” quality at the maximum “Russian” prices.

Profile Grain-Prestige 70 (Grain-Prestige 70)

This universal 5-chamber system is perfect for assembling windows that can be used in all regions of Russia (with the exception of the northern regions).
Although a class “A” profile with an installation depth of 70 mm can withstand frosts down to -60°C, the energy efficiency of structures assembled from it is not sufficient for very harsh winters. But for the center and south of our country, the Grain-Prestige 70 system is the best option. The internal chambers of Grain-Prestige profiles have additional partitions. They not only increase the rigidity of structures, but also increase the level of heat conservation. Due to the small optical height (112 mm), windows assembled from these systems have good light transmittance. To ensure tightness, the developers limited themselves to 2 sealing contours, since the excellent rigidity of the profiles reduced the likelihood of blowing through the valves to a minimum.

Technical characteristics of Grain Prestige

The thermal insulation of the Grain Prestige profile is significantly improved through the use of five internal chambers in all profiles, including the impost. Thanks to this, the heat transfer resistance coefficient is over 0.80 m2 oC/W, which allows the profile to be classified as category “A”. This guarantees amazing thermal insulation properties.

The number of cold bridges has been reduced thanks to additionally reinforced partitions and technological protrusions in the internal chambers of the profile. Thanks to the special universal design of the internal frame, it is possible to install closed reinforcement. At the same time, it becomes possible to manufacture non-standard structures, guaranteeing their safety and durable operation.

The profile width is 70 mm and the optical height is 112 mm. At the same time, the distance of the fitting groove is 13 mm, which makes it possible to use almost any fittings (for example, Siegenia-Aubi Favorit or Titan), including anti-burglary fittings.

The thickness of the double-glazed window can be up to 40 mm, which allows the use of three-chamber double-glazed windows that guarantee high thermal insulation.

The table below shows the main certifications and technical characteristics of the Grain Prestige profile.

Profile Grain-Lider 102 (Grain-Leader 102)

Because so much heat from windows is lost into the walls, Grain engineers created a wide-frame system.
Its installation depth is 102 mm, which helps to increase the energy efficiency of the rest of the structure. The Grain-Lider 102 system was developed for use in northern latitudes. It is also recommended for use when assembling windows intended for use in temperate climates. Grain-Leader 102 windows reduce heat leakage to a minimum and help save on heating costs. In terms of the thickness of the plastic walls, they belong to class “A” profile structures and can be equipped with burglar-resistant fittings. To make the cost of the Grain-Lider 102 system accessible to a wide range of buyers, the developers resorted to a trick. They created a 5-chamber profile for the frame, and a 3-chamber profile for the sashes. In this way, it was possible to insulate the most problematic area of ​​the windows - the frame, because in fixed and active sashes the energy efficiency of double-glazed windows is more important. Moreover, the chambers in the frame were additionally divided by a horizontal internal partition - in fact, this profile has 10 internal cavities. Thanks to this distribution, the frame has double protection, preventing heat leakage from the windows into the walls. This technique increases the level of energy saving of profile structures by 20%.

Profile Vektor 58 (Vector 58)

This 3-chamber system is actively used not only for glazing loggias, country houses, warehouses and industrial premises. Vektor 58 profiles are used for assembling windows intended for installation in residential and office premises. However, given that the energy efficiency of structures made from this system is almost 20% less than that of frames and sashes from Grain-Prestige 70, its scope of application is limited to the southern regions. In severe frosts, structures made from Vektor 58 systems lose too much heat, so maintaining a comfortable temperature in the interior requires more resources. Vector 58 windows are only good for mild winters.

Grain plastic window product lines

There are 5 main models of the “Grain” profile. And for each they promise a “life” of 40 years.

Grain Prestige 70

Anti-burglary fittings can be installed on Grain windows

This is a five-chamber profile with internal reinforcement (reinforcing metal frame), 70 mm wide. Therefore, the heat transfer resistance of class A is 0.80 m2 °C/W. The thickness of the profile walls is 3 mm – an indicator of the highest quality according to the generally accepted system.

We also note that the model has a Eurogroove where you can install anti-burglary fittings. And a double sealing circuit, which will be enough in the middle zone. The double-glazed window can be double-chamber, single-chamber, or simply one glass instead of a double-glazed window.

The model is recommended for residential and office buildings. The average price in Moscow (from resellers) is 4,200 rubles.

Grain Leader 58

The profile has only 3 cameras. But it is claimed that it is warm

The Grain Lider 58 window system has only 3 chambers. However, manufacturers claim that its resistance to heat loss is the same as the previous one. And what is his secret?..

Glazed with single glass (4 mm) or single-chamber glass (24, 32 mm). Otherwise, its characteristics are the same as those of the Prestige.

The average price is 3,500 rubles.

Grain Leader 102

102nd Grain - the PVC profile is the same as its analogue.

Only thicker, five-chamber. Grain Lider 102 five-chamber frame only. The combination of the classic Grain-Lider profile with a wide five-chamber window frame allows you to increase the heat efficiency of the entire window structure by 20%. In addition, a wide frame with an increased installation depth provides improved thermal insulation of slopes and an aesthetic appearance of the building facade. This is an ideal solution for cottages and country houses.

Our readers can familiarize themselves with the options for insulating balconies. See in what places to insulate it and with what. How to prepare a balcony for winter? You can also find out about ways to temporarily insulate it on the website.

So that you do not freeze on the loggia even at -25, we recommend installing a warm electric floor there.

Vektor 58

Three-chamber systems that are designed for mass housing and industrial premises. Inside the profile there is always a metal closed skeleton - it can withstand a lot of weight. So the windows of this model are very large.

This model is cooler - heat transfer resistance 0.70 m2 °C/W. The groove for fittings is either regular – 9 mm, or with a “euro” prefix – 13 mm.

Vektor 70

Used for glazing of houses, apartments, offices, etc. in the middle zone. Heat loss resistance – 0.72. Number of cameras – 5.

And it’s hard to imagine how the “Leader” model with a thickness of 102 mm should protect from the cold!

Model Vector 58 is designed for industrial premises

Five-chamber profile Vektor 70 for the middle zone

Profile Vektor 70 (Vector 70)

The Vector five-chamber system has a reduced thickness of the outer walls, so, with other parameters being the same, it is slightly inferior in energy efficiency to the Grain-Prestige profiles. The difference in this parameter is about 6%, so it is often ignored by buyers when they need an economical option regarding warm windows. The inexpensive Grain 70 series is a profile whose characteristics are completely suitable for the southern regions and partially for the central ones. Such structures cannot be used in northern latitudes. Vektor 70 systems are used to make bright and safe windows, since the profiles are compatible with burglar-resistant fittings.

Profile Nordprof 58 (Nordprof 58)

The Nordprof 58 system is the most affordable of the entire line of Grain profiles. It is presented in two versions - with a groove for regular or reinforced fittings. Inexpensive three-chamber Nordprof windows with an installation depth of 58 mm are most often ordered for glazing unheated areas. Also, such systems are recommended for assembling office partitions and other structures intended for use inside buildings. If you decide, in order to save money, to use Nordprof 58 windows for external glazing of residential or office premises, you must definitely use energy-efficient double-glazed windows to complete them.

Profile Nordprof 70 (Nordprof 70)

The profile of this 70 mm series is designed for the production of inexpensive 5-chamber windows. This is one of the most affordable options for glazing residential and office premises on the Russian market. When choosing such a “B”-class system, you need to be prepared that it will be 20% cooler than the popular Grain-Prestige 70 profiles. Nordprof five-chamber burglary-resistant windows are ordered in cases where you need to save money and there is no need to conserve energy. It is recommended to equip such profile structures with selective double-glazed windows, which will help to avoid too much heat loss.

Comparison table of parameters

The significant difference in the main parameters of Grain profiles is an important advantage that allows you to reduce costs when ordering windows. For example, glazing a balcony or non-residential summer house does not require a 5-chamber system with high energy efficiency. But a private house with large openings requires a profile that can retain maximum heat. To make it more convenient to choose a suitable system, we recommend using the table with the main parameters of Grain profiles.

Grain range of plastic profiles

The uniformity, width, thickness of PVC profiles, as well as the number of air chambers, double-glazed windows and the design of the fittings are the main parameters of the profiles that you should focus on. According to the magnitude of these characteristics, all profiles are divided into classes A, B, C.

The brand offers 6 types of window profiles, 2 of which belong to class A and 4 to class B. The numbers in the designation of each type determine the width of the profile in millimeters. So:

• Prestige 70 (A)
• Leader 58 (A)
• Vektor (Vector profile) 70 (B)
• Vektor 58 (B)
• Nordprof 70 (B-economy)
• Nordprof 58 (B-economy)

As can be seen from the width of the profiles, all classes are fundamentally not very different and, in general, all important characteristics are quite standard. The main difference lies in the nuances associated with the individual needs of the client, the requirements for the strength of the profiles and the parameters of the window openings themselves, and the type of building. That is, each of them can perfectly cope with the basic functions, both in an office and in a residential building, but someone may certainly need the “ideal” one, some have a specific design of window openings, while others need maximum quality at the lowest price .

The Grain range consists of options that are designed to meet the widest possible range of customers and their needs.

Feedback about Grain's profile

For glazing, you can safely use the Grain profile, reviews of which clearly indicate that these systems are highly appreciated in the Russian Federation.
Grain windows today are successfully used in apartment buildings, private cottages and commercial or municipal institutions. Depending on the circumstances, customers choose different types of profiles, but they respond best to the Grain-Lider and Grain-Prestige systems. These premium series are not inferior to similar products from European manufacturers. Vladimir Semenovich (entrepreneur):
“To replace windows in the office, I chose the Russian Leader system with a wide frame and conventional three-chamber sashes. I think this combination is the most reasonable. After all, good double-glazed windows protect you from the cold from the street, but windows on the side of the walls are the most vulnerable. The numbers speak about the effectiveness of this system. After installing new Grainne windows, I reduced my heating payments by 15% and literally in 2-3 seasons I will get back the money spent on an improved profile.” Valentina Germanovna (teacher): “For the new windows I chose the Grain profile, reviews of which influenced my final decision.
At first I thought of giving preference to some well-known and popular brand, but at the same time I wanted to save money. Ultimately, after some thought and questioning, I ordered windows from Grain Prestige profiles. I'm glad I made this decision. New windows look great, retain heat for a long time and keep out noise.” Grain is a PVC profile that is manufactured in strict compliance with the specified parameters. Stable quality indicators mean that the actual characteristics of the systems fully correspond to the parameters declared by the manufacturer. The customer is only required to correctly choose the optimal model and regularly care for the plastic structures and fittings.

Image source – Grain official website

Where is it recommended to use

• Glazing of balconies and loggias.
• Glazing of dachas and cottages.
• Production of balcony doors and plastic windows.
• Object construction.

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