How To Cut Sheets Of Gvl

Where is GVL sheets used

The material has a number of qualities that allow it to be used in various fields. In this regard, manufacturers offer a wide selection of sheets that differ in thickness and size. The most popular material options are slabs with a thickness of 10 and 12 mm. Most often they are bought in the amount of 1200 x 2500 mm. The actual GVL format corresponds to drywall.

The material is used in the decoration and construction of residential, industrial and administrative premises. It can be used to level walls and ceilings. The high strength of the material allows it to be laid on a sub-floor, and then used as a base for flooring.

Cutting material

GVL sheets are very easy to cut. For this, it is possible to use various tools:

  • Specialized knife.
  • Circular saw.
  • Jigsaw.
  • Angle grinder with special disc.

How To Cut Sheets Of Gvl

The most popular cutting method is the use of a specialized knife. This allows you to cut sheets without noise and dust. Hand cutting requires the use of a metal ruler or aluminum rule. The blade of the knife goes deeper into the material to a depth of 1-2 mm. During movement, the blade should rest against the end of the ruler. This is necessary to make a cut to obtain an even mowing line. The fact is that the presence of cellulose makes it difficult to guide the knife evenly, therefore, without a guide, you can make an incision on the skew.

Next, you need to break the letter along the mowing line and cut it. If a smooth edge is required, then it can be processed using a roughing planer. It has a surface similar to a float, thanks to which it quickly removes protruding material.

External differences between GVL and GCR

The closest competitor to gypsum-fiber writing is drywall. This is due to the same size, thickness, and the material used to produce them. GVL sheets have a homogeneous structure, and gypsum plasterboard is layered. Its core is made of plaster and is surrounded on all sides by cardboard. The latter, with inaccurate installation, can be accidentally ripped off, thereby violating the integrity and reducing resistance to mechanical stress. GVL does not have a multilayer structure. The material is obtained by mixing gypsum with wood pulp. A homogeneous mixture is placed on a conveyor, compressed and dried. Due to the presence of reinforcing fibers around the entire perimeter of the sheet, it receives increased resistance to fracture.

With an external comparison of gypsum plasterboard and gypsum plasterboard, it can be noted that drywall has a paper surface. When looking at the letter from the back side, there is a noticeably glued fold of cardboard. The surface of the plasterboard letter is more like plaster.

GVL characteristics

How to work with GVL when decorating walls and ceilings

GVL sheets are an excellent material for leveling walls and ceilings. It can also be used to create interior partitions. To fix the GVL, it is required to create a frame from a rail or a metal profile. The lathing is assembled with a step of 600 mm. Thanks to this, each standard sheet 1200 mm wide will be simultaneously fixed on 3 profiles. In this case, it is necessary that the GVL overlap the extreme rails by half. Thanks to this, it will have a common base with the next slab.

To provide sound and thermal insulation, gypsum fiber board is usually used together with a heater. Mineral or basalt wool is suitable as it. It is laid between the elements of the frame, after which it is completely hidden by letters. Direct fastening of GVL to the frame is performed with self-tapping screws. They are installed in 30-60 cm increments.

The joints between the sheets are covered with putty, after which serpyanka grids or a special paper tape are glued to it. After setting, the entire surface is putty. It is not allowed to paste over GVL with wallpaper without putty. Its use will allow you to get a snow-white base, as well as to facilitate further dismantling.

Features of sheets GVL

Gypsum fiber has a number of unique characteristics that are inaccessible to most building and finishing materials:

  • Simple installation. Renovation and finishing work with the introduction of gypsum fiber excludes the use of labor-intensive wet technologies.
  • Structure. Unlike drywall, GVL sheets (slabs) have a homogeneous structure with no outer shell. This advantage is due to the increased strength of gypsum fiber, its ability to withstand the ultimate load.
  • Environmental Safety. Gypsum fiber. Environmentally friendly product, the level of its natural radiation is 3 times lower than in bricks.
  • Frost resistance. The material can withstand 15 freeze-thaw cycles, while drywall after 4 begins to crumble and crack. Thus, GVL sheets can be used in the decoration of non-heated premises (attics, basements, garages).
  • Soundproofing. Gypsum fiber perfectly insulates the room from extraneous noise. Its sound insulation performance can reach 35dB.
  • Moisture resistance. The use of gypsum-fiber boards in rooms with a high level of humidity (bathrooms, kitchens) provides for the use of their special type, which has increased moisture resistance. GVLV.
  • Resistance to open fire. Due to the absolute incombustibility of the material, the installation of GVL is recommended for premises with special fire safety requirements.

Gypsum fiber boards can be used for cladding walls or floors, arranging suspended ceilings, interior partitions, creating decorative structures and sound-absorbing screens. Gypsum fiber sheets can also serve as a fire retardant coating for rooms with normal humidity conditions.

Along with the use of GVL boards for finishing walls and ceilings, this material is often used when installing a dry floor screed. Any floor can be laid on it. Durable gypsum fiber will provide a completely flat, reliable surface. To perform such work, it is not at all necessary to hire professionals, the sheets can be laid independently and very quickly.

Characteristics, application, installation and finishing of GVL sheets

Gypsum fiber. A relatively new, but already very popular, material for interior decoration. It is produced in the form of sheets, the characteristics of which are similar to drywall boards, but surpass them in many respects. The composition of gypsum-fiber letter (GVL) includes building gypsum, reinforced with loose cellulose, which mine from ordinary waste paper. Today, this material is less known than its older brother. Drywall, as it costs somewhat more than its counterpart.

GVL installation options

The installation of gypsum-fiber boards, although it does NOT require the use of special skills, must be carried out strictly in stages, it is the observance of a certain order of actions that will ensure the required operational characteristics of the structure. Surface finishing can be started only after all preparatory work has been carried out, including cleaning, leveling, elimination of defects and priming.

Installation of GVL for walls, floor or ceiling is distinguished by its characteristic features. For example, laying the dry version of the screed will significantly raise the floor level, which will require sawing the doorway. If we are going to lay slabs directly on a wooden floor, we must securely fix its elements and remove all rotten parts.

The first method of installation work is as follows: you need to lay sheets of gypsum fiber on a special glue, using self-tapping screws for gypsum fiber board as fasteners. Stronger slabs around the perimeter, observing the following technology: material thickness. Up to 12.5 mm, length of self-tapping screws. 40 mm, step. 400 mm. The caps of the self-tapping screws must be sunk 1.5-2.5 mm deep.

The second installation option is the frame method. To perform this type of work, only the most common tools and materials are needed:

  • Plumb line, level, chopping line;
  • Drill, angle grinder, screwdriver;
  • Dowels, screws for GVL and metal.

The lathing of the structure can be made of wooden beams, but the best material for its manufacture is a galvanized metal profile. It is more reliable and durable. The frame must be assembled in such a way that its elements are at a distance of no more than 400 mm from each other.

Carrying out installation work, many novice craftsmen ask the question: what is the best way to cut GVL? There are several options for solving this problem, it all depends on your capabilities and preferences. Some craftsmen recommend cutting the sheet with a knife, others use a circular saw or angle grinder. We believe that the best way out of this situation is to use a jigsaw with a built-in vacuum cleaner. Its work eliminates the formation of a large amount of dust.

Finishing

As materials for the finishing of the coating, you can use any kind of wallpaper, paint or tile. Let’s talk about tiled cladding. First, you need to determine a phased scheme for the implementation of work, which should consist of processing and marking the surface of the preparation of the tile and adhesive composition, the actual laying, as well as the subsequent grouting.

  • Before laying tiles on gypsum plasterboard, it is required to treat the sheets with a special primer and wait for it to dry.
  • It is necessary to determine the required amount of tiles Based on the length and width of the surface to be trimmed. Knowing the size of the products, taking into account the width of the seams, you can calculate their total number.
  • Now it is necessary to apply the adhesive composition to the surface, distribute it evenly with a spatula.
  • When laying tiles on gypsum plasterboard, it is necessary to press down slightly in order to increase the reliability of the fastening. Many experts advise using a rubber hammer from Kiev for THESE purposes.
  • You should leave the same gaps between the tiles, carefully cleaning them from the adhesive mass. After a day (for wall cladding) or 48 hours (floor), the joints between the tiles must be wiped off using special compounds. All this time, the room needs to maintain a minimum level of humidity.

A well-known manufacturer of GVL. KNAUF company. Recommends to use only high-quality materials for finishing and consistently perform all stages of the technological process. German experts advise using a special FLIESEN branded tile adhesive in work, ready-made in small portions, sufficient to process a surface area of ​​1 m2.

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That’s all, let’s hope that our article will help a novice home craftsman to decide on the option to decorate his favorite room. If an experienced craftsman honors us with his attention, then we ask him to share his experience and tell how best to cut GVL, how it can be trimmed, and most importantly. How to avoid mistakes when performing such work.

Finishing

GVL can be installed without a frame. It is preferable to install the installation before laying the finishing floor covering. For two to three days, the sheets are kept indoors at a temperature of 10 and higher, the thermal regime must be maintained during the entire operation. It is also important to avoid moisture changes.

Assess the condition of the walls. If the surface does not flake off, partially or completely remove the plaster, depending on the area of ​​the problem surface. Putty is applied, allowed to dry. Whether the wall is putty or not, it is checked for unevenness. A ruler is applied in different places and the depth of the depressions is measured. Their presence or absence determines how the material will be attached.

Installation of GVL on glue

If the irregularities are less than 4 mm, fix it with plaster putty. It is applied with a notched trowel along the edges of the slab, then the gypsum fiber is glued to the wall. For unevenness up to 20 mm, use glue for gypsum fiber board. It is applied over the entire sheet, starting from the edges, after 30 centimeters. If the irregularities are up to 40 mm, installation becomes more difficult.

Before finishing, surface preparation is carried out with the main purpose. Close up the joints. They, as well as the inner corners, are reinforced with a special paper tape. Some masters do NOT recommend reinforcement. A little universal putty is applied to the seams, a tape is applied on top and a little pressed.

After drying, the seam is covered with a layer of putty and aligned with the base. The screw heads must be putty too. At the outer corners, a perforated corner made of aluminum is attached with putty. Then this place is also leveled and reduced to the level of the main plane.

Now the putty is prepared in a plastic bucket with a mixer and applied to the surface. A day later, when the putty is dry, they start grouting the walls with an abrasive mesh or emery. The abrasive material is fixed in special graters. Its grain size depends on the finishing material. For painting, an abrasive NOT below size 240 is suitable, for dense wallpaper 60 is enough.

Gypsum fiber. A relatively new, but already very popular, material for interior decoration. It is produced in the form of sheets, the characteristics of which are similar to drywall boards, but surpass them in many respects. The composition of gypsum-fiber letter (GVL) includes building gypsum, reinforced with loose cellulose, which mine from ordinary waste paper. Today, this material is less known than its older brother. Drywall, as it costs somewhat more than its counterpart.

The installation of gypsum-fiber boards, although it does NOT require the use of special skills, must be carried out strictly in stages, it is the observance of a certain order of actions that will ensure the required operational characteristics of the structure. Surface finishing can be started only after all preparatory work has been carried out, including cleaning, leveling, elimination of defects and priming.

Installation of GVL for walls, floor or ceiling is distinguished by its characteristic features. For example, laying the dry version of the screed will significantly raise the floor level, which will require sawing the doorway. If we are going to lay slabs directly on a wooden floor, we must securely fix its elements and remove all rotten parts.

The second installation option is the frame method. To perform this type of work, only the most common tools and materials are needed:

  • Plumb line, level, chopping line;
  • Drill, angle grinder, screwdriver;
  • Dowels, screws for GVL and metal.

The lathing of the structure can be made of wooden beams, but the best material for its manufacture is a galvanized metal profile. It is more reliable and durable. The frame must be assembled in such a way that its elements are at a distance of no more than 400 mm from each other.

Important to remember. Using the first (frameless) method of surface cladding, it is necessary to observe a certain width of the gap between the plates (6-8 mm), seal the joints with a special gypsum putty and use a special glue for gypsum plasterboard.

It is widely used in the cladding of premises and buildings. Here are industrial to residential.

They are also sheathed:

  • Bal-Kons, attic, attics. Required condition. A good ventilation system for THESE premises;
  • It is a replacement for dry screed;
  • Premises with high levels of humidity: bathrooms, kitchens, dressing rooms and others. Due to its moisture resistance, the material provides a high-quality and durable coating;
  • Outbuildings, where there is no heating to prevent freezing of the walls. GVL perfectly retains heat.
  • It is used in the decoration of sports halls due to its special strength;
  • Industrial premises, because it is resistant to fire and does NOT allow it to spread.

As materials for the finishing of the coating, you can use any kind of wallpaper, paint or tile. Let’s talk about tiled cladding. First, you need to determine a phased scheme for the implementation of work, which should consist of processing and marking the surface of the preparation of the tile and adhesive composition, the actual laying, as well as the subsequent grouting.

  • Before laying tiles on gypsum plasterboard, it is required to treat the sheets with a special primer and wait for it to dry.
  • It is necessary to determine the required amount of tiles Based on the length and width of the surface to be trimmed. Knowing the size of the products, taking into account the width of the seams, you can calculate their total number.
  • Now it is necessary to apply the adhesive composition to the surface, distribute it evenly with a spatula.
  • When laying tiles on gypsum plasterboard, it is necessary to press down slightly in order to increase the reliability of the fastening. Many experts advise using a rubber hammer from Kiev for THESE purposes.
  • You should leave the same gaps between the tiles, carefully cleaning them from the adhesive mass. After a day (for wall cladding) or 48 hours (floor), the joints between the tiles must be wiped off using special compounds. All this time, the room needs to maintain a minimum level of humidity.

That’s all, let’s hope that our article will help a novice home craftsman to decide on the option to decorate his favorite room. If an experienced craftsman honors us with his attention, then we ask him to share his experience and tell how best to cut GVL, how it can be trimmed, and most importantly. How to avoid mistakes when performing such work.

Experience of interior finishing works 21 hours.

Installation of GVL for walls, floor or ceiling is distinguished by its characteristic features. For example, laying the dry version of the screed will significantly raise the floor level, which will require sawing the doorway. If we are going to lay slabs directly on a wooden floor, we must securely fix its elements and remove all rotten parts.

The first method of installation work is as follows: you need to lay sheets of gypsum fiber on a special glue, using self-tapping screws for gypsum fiber board as fasteners. Stronger slabs around the perimeter, observing the following technology: material thickness. Up to 12.5 mm, length of self-tapping screws. 40 mm, step. 400 mm. The caps of the self-tapping screws must be sunk 1.5-2.5 mm deep.

  • Plumb line, level, chopping line;
  • Drill, angle grinder, screwdriver;
  • Dowels, screws for GVL and metal.

Carrying out installation work, many novice craftsmen ask the question: what is the best way to cut GVL? There are several options for solving this problem, it all depends on your capabilities and preferences. Some craftsmen recommend cutting the sheet with a knife, others use a circular saw or angle grinder. We believe that the best way out of this situation is to use a jigsaw with a built-in vacuum cleaner. Its work eliminates the formation of a large amount of dust.

Refining the resulting surface can be carried out in various ways, but always after preliminary preparation:

  • Joints between adjacent panels are closed. For this, the seam is treated with a primer and filled with an elastic filler. If work is carried out in a recently erected building, then the sections are reinforced with reinforcing tape. This will avoid future cracking.
  • The seams are rubbed to level. Possible unevenness.
  • The surface is completely covered with a primer and dries well.
  • Before laying tiles on gypsum plasterboard, it is required to treat the sheets with a special primer and wait for it to dry.
  • It is necessary to determine the required amount of tiles Based on the length and width of the surface to be trimmed. Knowing the size of the products, taking into account the width of the seams, you can calculate their total number.
  • Now it is necessary to apply the adhesive composition to the surface, distribute it evenly with a spatula.
  • When laying tiles on gypsum plasterboard, it is necessary to press down slightly in order to increase the reliability of the fastening. Many experts advise using a rubber hammer from Kiev for THESE purposes.
  • You should leave the same gaps between the tiles, carefully cleaning them from the adhesive mass. After a day (for wall cladding) or 48 hours (floor), the joints between the tiles must be wiped off using special compounds. All this time, the room needs to maintain a minimum level of humidity.

What is the difference from GCR

Gypsum fiber differs from gypsum board: GVL is particularly durable, moisture resistant and fireproof. The price is above average. GCR is easy to cut, has low insulating properties. GVL is the opposite. Difficult to install and cut, but it dampens noise and retains heat.

Choosing a tool for cutting slabs

The base of the boards is gypsum. A rather fragile material, therefore, cellulose and reinforcing additives are additionally used to increase strength during production. GVL for walls differs from drywall: no cardboard coating is carried out during its manufacture. The strength of GVL is much greater than drywall.

Among other advantages of GVL, they note increased fire resistance. Coating walls made of wood with gypsum fiber boards increases their fire safety. There are no impurities harmful to human health in the material. Fungi, mold DO NOT find a nutrient medium in them, they are also not interested in rodents. The products are very durable, warm to the touch, well isolate sounds, prevent heat loss.

GVL comes in standard and small-format sizes. Standard 2500 × 1200 mm, 10 or 12 mm thick. Small format make 1500 × 1000 mm the same thickness. They are convenient in small spaces: bathroom, toilet. On the reverse side, a marking is applied indicating the properties of the product. The letter A in the marking indicates high quality.

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Among other advantages of gypsum fiber boards, the following should be noted:

  • Construction defects and communications are hidden under them;
  • Pressed sheets are very strong and tough, nails and screws are reliably attached to them;
  • The material lends itself to processing with carpentry tools like wood;
  • The surface is painted, pasted over with wallpaper, tiled.

GVL can be used in any room, regardless of the condition of the surfaces, the material used. It is an alternative to wet plaster: environmentally friendly, durable, beautiful, requiring a minimum of time and effort to install.

A metal profile or wooden slats are used 75 × 25 mm. First, prepare the walls, remove the peeling coating. The use of the frame method makes it possible to exclude the preparation of walls from the preliminary operations. Many experts, however, advise to pre-fill the walls.

Installation of GVL on a metal frame

Applying a building level, a plumb line, markings are applied indicating the location of the profile. Vertical posts and lintels are installed at the joints and in the intervals between them with a step of 40 cm. The metal frame is preferable to wooden slats. Profiles are installed on brackets, fastened with self-tapping screws or dowels. The racks are pasted over with sealing tape, which will increase sound insulation. The length of the risers is minus 10 mm from the height of the room.

Gypsum-fiber material begins to be fastened from the corner in a run along the perpendicular. Fix with 40 mm self-tapping screws for GVL, if the material thickness is standard. In any case, the screws must fit into the body by 20 mm. The hats are recessed by 2 mm. A small gap of 5-7 mm is left between the sheets. The space between the gypsum fiber board and the wall can be insulated by using, for example, mineral wool.

List of tools for home use:

  • A hacksaw designed for this kind of material. It is equipped with teeth of a special shape, located at a certain angle. This makes it possible to cut slabs without a lot of dust.

Thin gypsum-fiber writing can be cut with a standard hand-held drywall hacksaw, for thicker material you need a special tool, for example, hacksaws are great for foam and aerated concrete

A construction knife with a sharp and sturdy blade. Cutting with such a tool will require much more time and effort: the sheets are rather brittle for bending, so the break line must be emphasized much more. It is advisable to use a knife when a perfectly smooth edge is NOT required or there is no time for rework.

Construction knives for dense materials Should have a powerful, reinforced handle, but such products dissolve much faster and with less labor costs hook with transverse re-sharpening

Angle Grinder. This device belongs to the most effective. Allows you to spray large quantities of material in a short time. But work should be carried out only in a separate well-ventilated room. The fact is that in the process a lot of dust is released, which settles on all surfaces and complicates the event. It is also necessary to prepare a respirator and goggles.

On a note! If an angle grinder is not available, a circular saw can be used as an alternative. But both options can only cut in a straight line with the mowing line.

It is convenient to work with an angle grinder with a diamond disc or a circular saw, but too much dust is produced when dissolving

  • Electric jigsaw. For large-scale work, it is recommended to provide for the possibility of connecting to a vacuum cleaner, which is capable of capturing fine suspended matter. The presence of a simple dust collector will NOT keep dust away. It is necessary to work in a protective mask and goggles. It is important to choose the right pollen: the options for the small toothed tree have worked well, but it is allowed to experiment with this.
  • It is possible to cut GVL with an electric jigsaw, but for such work, high-strength blades with a medium tooth are used

    You can also cut GVL with other tools: for example, an ordinary hand saw for wood. But the result will not always be necessary, so you should proceed from the specific situation.

    Gypsum fiber has a number of unique characteristics that are inaccessible to most building and finishing materials:

  • Simple installation. Renovation and finishing work with the introduction of gypsum fiber excludes the use of labor-intensive wet technologies.
  • Structure. Unlike drywall, GVL sheets (slabs) have a homogeneous structure with no outer shell. This advantage is due to the increased strength of gypsum fiber, its ability to withstand the ultimate load.
  • Environmental Safety. Gypsum fiber. Environmentally friendly product, the level of its natural radiation is 3 times lower than in bricks.
  • Frost resistance. The material can withstand 15 freeze-thaw cycles, while drywall after 4 begins to crumble and crack. Thus, GVL sheets can be used in the decoration of non-heated premises (attics, basements, garages).
  • Soundproofing. Gypsum fiber perfectly insulates the room from extraneous noise. Its sound insulation performance can reach 35dB.
  • Moisture resistance. The use of gypsum-fiber boards in rooms with a high level of humidity (bathrooms, kitchens) provides for the use of their special type, which has increased moisture resistance. GVLV.
  • Resistance to open fire. Due to the absolute incombustibility of the material, the installation of GVL is recommended for premises with special fire safety requirements.

Along with the use of GVL boards for finishing walls and ceilings, this material is often used when installing a dry floor screed. Any floor can be laid on it. Durable gypsum fiber will provide a completely flat, reliable surface. To perform such work, it is not at all necessary to hire professionals, the sheets can be laid independently and very quickly.

Do-it-yourself installation of gypsum-fiber sheets on walls can be done using two methods: frameless and frame. In the first case, the GVL plates are glued to the surface in the second, first, a special frame is installed with their own hands, to which the sheets are screwed. Let’s take a closer look at both styling methods.

Stages of laying GVL on the floor

For GVL sheets, the frameless method is rarely used, but for the walls of residential premises, it is gypsum fiber boards that are the most preferred option. Installation by this method is carried out in the following sequence:

  • If the unevenness of the walls is up to 4 mm, the sheets must be glued directly to the surface of the walls using gypsum putty, which is applied in longitudinal ridges with a rather thin layer along the perimeter of the gypsum board, after which the letter is glued to the wall.
  • If the irregularities are 4-20 mm, the sheets are laid using special glue, for example, Perflix. The composition is applied to the surface of the gypsum fiber board in the middle and along the perimeter of the slab in increments of 30-35 centimeters.
  • If the irregularities are very large, from 20 to 40 mm, then the installation is more difficult. First, with the help of special glue, strips of gypsum fiber board with a width of 100 mm are glued to the surface of the walls with their own hands, and only then the boards themselves are glued to them with the help of gypsum putty.
  • The installation must be carried out before the final floor covering is laid. The room temperature must be between 10 C. The sheets themselves should be kept in the room where the installation will take place for two to three days before work. The humidity and temperature regime must be maintained for the entire installation period; for very humid rooms, such as bathrooms, it is better to use plasterboard moisture-resistant boards.
  • If necessary, the walls must be prepared, cleaned from the remnants of the old coating. If the surface delaminates, reinforcement measures should be taken. The wall is putty, it should dry, after which you can proceed with the installation.
  • After the puttying is completed, the verticality of the walls and the presence of irregularities should be corrected with the help of the building level (the choice of laying method depends on this). The marking of the location of the plates is applied to the surface. If necessary, the walls are treated with a primer.
  • GVL plates are cut out, holes are cut into them for switches, sockets. The height of each piece should be such that there is a gap of 8-12 mm at the bottom. After the installation of large slabs, small sections are installed below, overlapping the gaps. For security, the sheets can be screwed to the wall surface with self-tapping screws.
  • The GVL boards themselves are glued to the wall using Special compounds according to the selected method. This is done with a calibrating notched trowel, after applying the mixture, the letter is leveled with a mallet. If you plan to mount any furniture on the surface of the wall, then glue must be applied to the entire surface of the gypsum fiber board.
  • The adhesive should be applied in an even layer, constantly monitor compliance with the same level of installation. This is usually done with a taut thread. The DIY installation itself starts from the corner. Gradually, the entire room is pasted over along the perimeter. For cladding a wall made of wood, all sheets are additionally fastened with self-tapping screws or roofing nails with very wide heads.

Advantages of GVL

Many manufacturers are engaged in the release of this building material, but the most popular is the one manufactured by the company Knauf GVL called Superlist. If we continue to compare gypsum fiber with drywall of the same company, we can see that they ideally complement each other. And the use of THESE materials in finishing work will simultaneously only benefit the repair.

Despite the fact that any box can be made from gypsum plasterboard, and the walls will be strong and non-flammable, nevertheless this material cannot be bent like drywall. This means that it will not work for the installation of complex structures with rounded shapes.

  • They DO NOT break.
  • DO NOT pass the cold.
  • Creates a perfectly flat surface.
  • Moisture resistant gypsum fiber boards withstand humidity up to 70%.

What makes GVL dusty: how to cut GVL at home

To answer our question, you need to figure out what this material is. Gypsum-fiber sheets, like drywall, are made from gypsum plaster. But that’s where the similarities end. The main features of GVL are:

  • Reinforcement with loose cellulose.
  • Complete material homogeneity.
  • Lack of top cover.
  • Incombustibility.
  • High density.

Many manufacturers are engaged in the release of this building material, but the most popular is the one manufactured by the company Knauf GVL called Superlist. If we continue to compare gypsum fiber with drywall of the same company, we can see that they ideally complement each other. And the use of THESE materials in finishing work will simultaneously only benefit the repair.

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Despite the fact that any box can be made from gypsum plasterboard, and the walls will be strong and non-flammable, nevertheless this material cannot be bent like drywall. This means that it will not work for the installation of complex structures with rounded shapes.

But on the floor, in dry screeds with expanded clay (technology KNAUF-SUPERPOL), gypsum fiber sheets are unmatched. Using them in the construction of a subfloor will give guaranteed positive results. Floor elements glued from two sheets of GVLV with a total thickness of 20 mm have the following useful properties:

  • They DO NOT break.
  • DO NOT pass the cold.
  • Creates a perfectly flat surface.
  • Moisture resistant gypsum fiber boards withstand humidity up to 70%.

Many who independently prepared for installation and installed drywall mistakenly believe that they work in a similar way with gypsum plasterboard. But here an unpleasant surprise awaits them. Gypsum-fiber sheets, with all their strength properties, when you take them for a break, turn out to be brittle and easily break. By the way, that’s why it is impossible to bend them like drywall.

Tools that cut gypsum fiber sheets at home:

  • Sharp construction knife with a thickness of 12 mm. Blades will have to be changed frequently as they dull quickly.
  • A special hacksaw for gypsum board, which can dust this material almost without dust.
  • Use an angle grinder or circular saw only in a well-ventilated area and provided that the end justifies the means. This is the fastest way and also very dusty. If you decide to choose this tool, you will have to stock up on respiratory and eye protection.
  • A jigsaw with a built-in vacuum cleaner is ideal if you install a saw on wood with a 4 mm tooth pitch. But there will still be a lot of dust, so you should work in protective goggles and a respirator.

With any method of cutting, remember to be careful and careful when handling gypsum fiber boards. If it is decided to use cutters or a special hacksaw for work, then you need to proceed as follows:

  • On the sheet of GVL we make the necessary markup.
  • We apply a flat bar to the mowing line. You can also use the rule.
  • We carry out the knife as many times as necessary so that the depth of the cut is at least 2/3 of the sheet thickness.
  • We put the rail under the fishing line cut.
  • With a sharp upward movement, gently break.

Before cutting it, it is better to additionally look at how to properly cut the sheet.

In GVL, even edge edges and problems with joining usually DO NOT happen. But if for a number of reasons there is a need for a small fit, then a roughing plane is suitable for this purpose.

But the seam is most convenient to do with a boot knife-cutter or a chisel. For large volumes, you can use cutters. A groove cutter of 3-4 mm will allow you to perform the necessary work in 2-3 passes.

Advantages of GVL

Gypsum fiber sheets and the already familiar drywall are united by the fact that both materials are based on gypsum plaster. The features of GVL include:

  • Using fluff pulp as a reinforcing material.
  • Homogeneous structure.
  • Lack of outer cover.
  • Absolute incombustibility.
  • Higher density than drywall sheets.

Gypsum fiber sheets are ideal for arranging dry floor screed using expanded clay. Here they show their qualities perfectly:

  • The floor is able to withstand significant loads.
  • Good thermal insulation.
  • Perfectly smooth surface.
  • Ability to withstand up to 70% humidity.

When finishing work, gypsum-fiber writing or gypsum fiber board is very often used. This material was born much later than drywall, as a result of which it did not gain such wide popularity as in gypsum plasterboard. However, due to its composition, gypsum fiber sheets have strength and fire-fighting characteristics much higher than that of drywall.

How to cut knauf SUPERPOL. What makes GVL dusty: how to cut sheets at home

When finishing work, gypsum-fiber writing, or GVL is often used. This material was created much later than drywall, so He did not gain such wide popularity as GKL. However, thanks to the special composition, these boards have outstanding strength and fire-fighting characteristics with indicators much higher than that of drywall. Therefore, GVL is indispensable for the installation of bulk floors, rough finishing of walls and ceilings, as well as for the construction of all kinds of boxes. The only question that arises when working with these building materials. How to cut GVL from Knauf.

How to cut GVLV knauf. Features of gypsum fiber sheets

Tools needed to work with GVL

Many who independently prepared for installation and installed drywall mistakenly believe that they work in a similar way with gypsum plasterboard. But here an unpleasant surprise awaits them. Gypsum-fiber sheets, with all their strength properties, when you take them for a break, turn out to be brittle and easily break. By the way, that’s why it is impossible to bend them like drywall.

Tools that cut gypsum fiber sheets at home:

  • Sharp construction knife with a thickness of 12 mm. Blades will have to be changed frequently as they dull quickly.
  • A special hacksaw for gypsum board, which can dust this material almost without dust.

Some craftsmen claim that it is convenient to cut GVL with special cutters, which are used by shoemakers.

  • Use an angle grinder or circular saw only in a well-ventilated area and provided that the end justifies the means. This is the fastest way and also very dusty. If you decide to choose this tool, you will have to stock up on respiratory and eye protection.
  • Ideal with a built-in vacuum cleaner if you install a wood saw with a 4 mm pitch. But there will still be a lot of dust, so you should work in protective goggles and a respirator.

Specificity of GVL

Gypsum-fiber letter, like gypsum plasterboard, is made on the basis of stucco. But the similarity of these materials is limited to this. Unlike drywall, GVL has the following characteristics:

  • Salty homogeneity of the inner mass;
  • Lack of outer cover made of thick paper;
  • Availability of cellulose fiber reinforcement;
  • High degree of strength;
  • Zero flammability;
  • Withstand humidity up to 70%.

With all the strength characteristics, the material practically does NOT bend and is rather brittle to break. With the wrong tool, you can simply crush the slab. That is why you need a special tool to cut it.

Gypsum fiber cutting process

With any method of cutting, remember to be careful and careful when handling gypsum fiber boards. If it is decided to use cutters or a special hacksaw for work, then you need to proceed as follows:

  • On the sheet of GVL we make the necessary markup.
  • We apply a flat bar to the mowing line. You can also use the rule.
  • We carry out the knife as many times as necessary so that the depth of the cut is at least 2/3 of the sheet thickness.
  • We put the rail under the fishing line cut.
  • With a sharp upward movement, gently break.

Before cutting, it is better to look additionally

In GVL, even edge edges and problems with joining usually DO NOT happen. But if for a number of reasons there is a need for a small fit, then a roughing plane is suitable for this purpose.

But the seam is most convenient to do with a boot knife-cutter or a chisel. For large volumes, you can use cutters. A groove cutter of 3-4 mm will allow you to perform the necessary work in 2-3 passes.

How to putty GVL knauf. DIY frameless installation

Stages of laying GVL on the floor

For GVL sheets, the frameless method is rarely used, but for the walls of residential premises, it is gypsum fiber boards that are the most preferred option. Installation by this method is carried out in the following sequence:

  • If the unevenness of the walls is up to 4 mm, the sheets must be glued directly to the surface of the walls using gypsum putty, which is applied in longitudinal ridges with a rather thin layer along the perimeter of the gypsum board, after which the letter is glued to the wall.
  • If the irregularities are 4-20 mm, the sheets are laid using special glue, for example, Perflix. The composition is applied to the surface of the gypsum fiber board in the middle and along the perimeter of the slab in increments of 30-35 centimeters.
  • If the irregularities are very large, from 20 to 40 mm, then the installation is more difficult. First, with the help of special glue, strips of gypsum fiber board with a width of 100 mm are glued to the surface of the walls with their own hands, and only then the boards themselves are glued to them with the help of gypsum putty.

Installation by frameless method is carried out as follows:

Drywall fixing scheme for glue.

  • The installation must be carried out before the final floor covering is laid. The room temperature must be between 10 C. The sheets themselves should be kept in the room where the installation will take place for two to three days before work. The humidity and temperature regime must be maintained for the entire installation period; for very humid rooms, such as bathrooms, it is better to use plasterboard moisture-resistant boards.
  • If necessary, the walls must be prepared, cleaned from the remnants of the old coating. If the surface delaminates, reinforcement measures should be taken. The wall is putty, it should dry, after which you can proceed with the installation.
  • After the puttying is completed, the verticality of the walls and the presence of irregularities should be corrected with the help of the building level (the choice of laying method depends on this). The marking of the location of the plates is applied to the surface. If necessary, the walls are treated with a primer.
  • GVL plates are cut out, holes are cut into them for switches, sockets. The height of each piece should be such that there is a gap of 8-12 mm at the bottom. After the installation of large slabs, small sections are installed below, overlapping the gaps. For security, the sheets can be screwed to the wall surface with self-tapping screws.
  • The GVL boards themselves are glued to the wall using Special compounds according to the selected method. This is done with a calibrating notched trowel, after applying the mixture, the letter is leveled with a mallet. If you plan to mount any furniture on the surface of the wall, then glue must be applied to the entire surface of the gypsum fiber board.