Standards for partitions according to the unified Knauf classification. Installation of plasterboard partitions Knauf Expansion joint in a plasterboard partition
Drywall is the most popular material for building partitions, decorative structures, niches in walls, openings, arches and much more. But all this requires reliable supporting structure. They can be made from either wood or profile. Today, Knauf partitions are very popular. This is a plasterboard structure, the frame of which is made exclusively of a metal profile. At the same time, all sorts of nuances are observed that can harm the integrity and overall reliability.
What is Knauf technology?
Knauf technology plasterboard walls lies primarily in the use of high-quality and reliable materials:
- screws;
- putty, mesh, etc.
The advantages of the Knauf profile include the fact that when connecting the rack to the guide, no irregularities or protrusions are formed on the surface of the wall. And this is a definite advantage, because it allows you to save money on finishing mixtures.
Knauf drywall installation technology involves the use of proprietary moisture resistant sheets. Materials from this manufacturer also have increased resistance to both mechanical factors and moisture. The range of this type of product includes sheets of 5 standard sizes, which greatly speeds up the installation process. And it is used exclusively as insulation and sound insulator.
Heat and sound insulation Knauf Knauf fasteners and hardware are made from durable types of plastic, and metal products undergo anti-corrosion treatment.
The company produces a huge number of products, so almost everything needs to be used from this brand.
What are the advantages of Knauf technology?
The main difference between Knauf products is their high durability and excellent quality. Therefore, Knauf technology for installing drywall must be performed at the appropriate level. Technology does not allow negligence and poor quality work. When starting to build partitions using this technology, you should adhere to all its principles:
If the installation instructions for Knauf drywall are fully followed, the partition will be reliable and durable.
Types of Knauf partitions
According to the structural structure of Knauf, partitions can be of several types, depending on the number of skins:
- with single-layer cladding;
- with two-layer cladding;
- with three-layer lining;
- with single-layer sheathing made of Knauf supersheets, moisture-resistant sheets on single frame;
- with combined, on the one hand, and two-layer, on the other;
- with three-layer sheathing made of moisture-resistant sheets and intermediate steel sheets.
Also, using Knauf technology, partitions with channels for communications and ventilation are made. These include designs of grades C 386.1 and C 386.2.
The type of partition installed depends on the purpose of the room and the degree of its sound insulation.
Knauf partitions are also divided according to the type of frame:
- double;
- single.
Single structures are used in places where thorough sound insulation is not required, and no additional load will be applied to the walls. Double ones are used to create a strong and reliable wall, on which you can hang heavy furniture or some household appliances.
Knauf partition design
Let's look at some Knauf plasterboard partitions made using the following technology:
Why is it important to follow technology and common mistakes?
Anton Tsugunov
Reading time: 4 minutes
Drywall is widely used in apartment renovations. It is used to level walls and ceilings, construct niches and boxes, modernize doorways, and perform many decorative elements. There are certain rules for installing these structures that must be followed. Leading drywall manufacturers have developed entire kits for the convenience of consumers. Knauf technology has gained particular popularity in our country.
Benefits of using technology
Knauf produces a whole line of ready-made kits, varying depending on the type and size of the structure.
The main advantage of Knauf kits: they include everything necessary for installing a wall or partition, from drywall to fasteners. This gives the consumer several advantages, including:
- Use only guarantee quality materials. This is facilitated by a strict proprietary control system designed for minimum tolerances in the manufacture of gypsum boards and other elements.
- Ease of calculating the consumption of drywall and other parts of the structure. A simple online calculator, available on many websites, is sufficient. You need to enter the dimensions of your wall or partition into it, indicating the number of doors and windows, and it will display full list everyone necessary elements indicating their quantity.
- Each kit is supplied by the manufacturer detailed instructions assembly, thanks to which even an untrained person can carry it out.
- By purchasing materials separately, you may forget some details. Using the kit solves this problem.
Installation procedure for Knauf kits
Required preparatory work: alignment and marking. After this, a partition is placed:
- Guide profiles are attached to the dowels.
- Vertical posts are installed at selected optimal intervals. It is recommended to fix them using a cutter with a bend.
- Horizontal jumpers are installed.
- If necessary, communications are extended and insulation is installed.
- The gypsum board frame is sheathed with special branded screws.
- Conduct finishing corners and joints of sheets.
Installation features
The system for assembling walls and partitions using this technology has its own nuances that must be taken into account to achieve an optimal result:
- To ensure high strength, individual frame elements are reinforced by nesting one profile into another.
- The guides are attached to dowels at at least three points. The profile plane adjacent to the base is preliminarily covered with damper tape.
- Often it is necessary to join elements of metal structures that are not long enough. In this case, the connection points should be spaced, for example, placed in a checkerboard pattern. This will reduce the likelihood of vibrations or various deformations of the structure.
- The racks are placed at a distance of 600 mm from each other. Thus, each sheet will be fixed on three profiles. If necessary, the step between the racks can be reduced.
- The profiles are fastened together using a cutter or branded self-tapping screws. Crab connectors are used at intersections.
- Sheathing elements made of gypsum plasterboard are attached end-to-end with the necessary gaps to compensate for the thermal expansion of the material. Subsequently, they are filled with a special composition produced by the same Knauf company.
- When constructing gypsum plasterboard partitions that have window niches or doorways, it is prohibited to join the sheets above them. Otherwise, there is a risk of seams coming apart due to vibrations that occur when using windows and doors. The elements are joined closer to the corners of the room.
Types of structures provided by Knauf
The sets differ from each other in the number of skins, thickness and frame design. All partitions use proprietary insulation based on mineral wool. The following kits are available:
- C 111 - with single layer cladding. Minimum thickness and instability to loads do not allow such a structure to replace a full-fledged wall; its function is decorative and zoning.
- C 112 – sheathing in two layers on each side on a single frame.
- Sets C 121 and C 122 are similar to the two described above. The difference is that instead of profiles they use wooden beams for lathing.
- C 115 is a set with a double frame, lined with two layers of plasterboard. This allows, by increasing the thickness of the partition, to place a double layer of mineral wool in it. In terms of its characteristics, this design is close to an ordinary wall.
- C 116 - also performed on a double spaced frame. Internal cavities, remaining inside it, allow for hidden installation of communications. Two-layer cladding set away from the wall is implemented in kit C 626.
- C 113 or C 367 - sets with triple skin. Designed for cases where it is necessary to use drywall different types: Moisture resistant, fire resistant and regular in many combinations.
- C 118 – used for especially strong walls and partitions. In it, sheets of galvanized steel 0.5 mm thick are laid between layers of plasterboard.
- C 361, C 362, C 363 - sets on a single frame, sheathed in 1, 2 or 3 layers, respectively, with Knauf gypsum-fiber supersheets. From 365–369 – modifications of partitions with gypsum fiber on different frames.
- C 386.1 and C386.2 - kits that provide for the laying of ventilation or other communication ducts.
Various combinations of frames and skins are possible. All of them are presented in the Knauf product line.
A single frame is used when you do not plan to hang anything heavy on the wall, and also if significant insulation or sound insulation is not required. But in order to attach heavy weight household appliances to the wall, you will have to make a double frame with reinforcement.
Features of the formation of corners from plasterboard
The corners play an important role in the construction of a plasterboard structure. If they are assembled incorrectly, then after a short time cracks will appear in these places, and the fastening of the sheets will be unreliable.
Gypsum plasterboard structures can have both internal and external corners. To form each of them, their own techniques are used. First of all, the frame is assembled.
External corners are made as follows:
- Two vertical posts forming an edge are installed in the guides so as to form a single angle. It is unacceptable to install them offset: in this case, there will be a void under the joint of the drywall sheets.
- The racks are fixed in the guides with a pair of screws at each fastening point. Professionals prefer to use a cutter: such a connection does not contain any bulges that interfere with the tight fit of the plasterboard.
- Fragments plasterboard sheathing screwed end to end, so that the plane of one element overlaps the end of the other, and are reinforced with a special corner profile. You can fix it with putty or PVA glue.
Curvilinear ribs are reinforced with a flexible plastic corner.
Internal corners are formed slightly differently:
- On initial stage a corner is made from the profile by twisting two posts so that the side back of one is attached to half the back of the other. In this case, LB19 mm self-tapping screws or similar ones are used. Fastening is done every 25–30 cm.
- This structure is inserted into guides on the floor and ceiling and fixed with metal screws.
- Before installing the drywall, chamfers are made with an inclination of 45˚; they will make it easier to putty the corner.
- The internal rib is glued with reinforcing mesh and puttied. After drying, it is treated with a drywall primer.
HELPFUL INFORMATION: Putty for sealing drywall joints: which one to choose and which one is better
Complete system KNAUF for the dry method of finishing premises includes:
- basic materials: plasterboard sheets, metal profiles;
- Additional materials– putty mixtures, reinforcing tapes, primers, screws, etc., as well as
- tool and technical information about designs and production methods.
This series contains instructions for selecting the type and design of framed and frameless wall cladding made from plasterboard sheets, as well as working drawings of wall cladding units.
Types of system cladding KNAUF
Note: weight of one sq. meter of cladding is calculated for the case of using plasterboard sheets with a thickness of 12.5 mm.
Depending on the properties and scope of application, sheets are divided into the following types:
- Regular plasterboard sheets (GKL)– plasterboard sheets, used primarily for interior decoration buildings and premises with dry and normal humidity conditions.
- Moisture-resistant plasterboard sheets (GKLV)— plasterboard sheets with reduced water absorption (less than 10%) and increased resistance to moisture penetration; used in rooms with dry, normal, humid and wet humidity conditions in accordance with current standards for building heating engineering.
- Plasterboard sheets with increased resistance to open flame (GKLO)- plasterboard sheets that have greater fire resistance than ordinary ones; used in areas with increased fire hazard.
- Moisture-resistant plasterboard sheets with increased resistance to open flame (GKLVO)— plasterboard sheets that simultaneously have the properties of gypsum board and gypsum board sheets.
When using GKLV and GKLVO sheets in rooms with humidity and wet conditions, it is necessary to provide exhaust ventilation, ensuring normal air exchange in accordance with current building codes for heating, ventilation and air conditioning (See KNAUF AutoCAD nodes below).
Humidity conditions of buildings and structures in winter period depending on the relative humidity and internal air temperatures should be set according to Table 1 of SNiP II-3-79* “Construction Heat Engineering”
Plasterboard sheets are produced with various types longitudinal edges
Sealing of gypsum board joints with edges of the UK and PLUK types is carried out using reinforcing tape.
The PLUK edge, in addition, allows you to seal gypsum board joints without reinforcing tape, which reduces the number of operations, consumption and range of materials.
The PC edge serves mainly to form the second skin layer in the C626 cladding.
The end edges are rectangular in shape.
Metal frame made of galvanized metal profiles according to TU 1111-004-04001508-95
Metal profiles KNAUF are manufactured in accordance with TU 1111-004-04001508-95 and are long elements made by cold rolling of thin steel strip with a thickness of 0.55-0.8 mm on modern equipment.
Standard profile length KNAUF is 2750, 3000, 4000, 4500 mm.
The maximum length of profiles is 9000 mm.
Rack profiles (PS) are C-shaped and serve as vertical racks frames intended for plasterboard cladding. The rack profile is mounted in pairs with a guide profile of the appropriate size.
PS profiles KNAUF Available in the following section sizes:
It is allowed to connect rack profiles along the length (1.073.9–2.00.1–9). When installing in areas of overlap, a rivet connection, a connection with LN9 type screws or using a cutter - the “notch with bend” method is used.
Guide profiles (PN) They are U-shaped and serve as guides for rack profiles, as well as for arranging jumpers between them in cladding frames. Mounted in pairs with a PS profile of the appropriate size.
Mon profiles KNAUF Available in the following section sizes:
(PNP 28×27) has a U-shape and serves as a guide for the ceiling profile, as well as for installing jumpers between them in the C623 cladding frames. Mounted in pairs with the appropriate size ceiling profile(PP 60×27).
Ceiling guide profile (PNP 28×27) is produced with ready-made holes F 8 mm in the profile wall with a pitch of about 250 mm. for attaching it to the supporting base.
Ceiling profile (PP 60×27) has a C-shape and serves as vertical posts of frames intended for cladding plasterboard sheets. Mounted in pairs with a ceiling guide profile of the appropriate size (PNP 28×27).
Soundproofing and thermal insulation materials
As a soundproofing and heat-insulating layer in plasterboard cladding systems KNAUF products made of mineral and glass fiber with a synthetic binder and other materials included in the “List of polymer materials and structures approved for use in construction by the USSR Ministry of Health" - M.1985 and having a certificate fire safety and a hygienic certificate for use in premises of the appropriate purpose.
Fasteners
To fasten gypsum boards to the cladding frame and fasten the cladding frame elements to each other, the following types of fasteners are used:
a) for attaching gypsum boards to the frame:
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