Interpretation Of Designations And Markings Of Gypsum Plasterboard Sheets, Brands And Sizes Of Drywall And Profile

2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54

• GKL characteristics
• The main advantages and disadvantages of the material
• About qualifications and tools
• Assembly of walls and partitions
• A few words about the profile
• Suspended ceiling

What is drywall and designation (GKL) what markings are used to designate sheets. Types of both edges and the main standard size, this will be discussed in detail. Gypsum plasterboard is a three-layer composite material consisting of a layer of gypsum grade G-4, pasted over from the outside with durable cardboard.

It is produced in the form of gypsum plasterboard sheets of various types: conventional (GKL), fire-resistant (GKLO), moisture-resistant (GKLV), moisture-resistant and fire-resistant (GKLVO).

Produced for ordinary rooms and rooms with high humidity.

Differs in color: gray drywall for ordinary rooms, drywall for wet rooms is green, fire-resistant drywall is painted pink.

Knauf gypsum plasterboard is reinforced with fiberglass to increase strength.

GKL characteristics

GKL is widely used in the manufacture of suspended ceilings, internal partitions, wall cladding.

The material is easy to work with and does not require special professional skills and tools.

Standard dimensions of plasterboard:

Length of sheets 2.5 m;

Width 1.2 m;

Thickness 12.5 mm.

The weight of a standard sheet does not exceed 30 kg.

For suspended ceilings, sheets with a thickness of not more than 9.5 mm are used, the weight of which does not exceed 25 kg.

Our online calculator will help you to calculate in detail the required amount of material for a drywall wall.

The main advantages and disadvantages of the material

The light weight of gypsum plasterboard sheets allows them to be used in old houses without creating unnecessary load on the floors.

Drywall has increased strength. Each point mount is capable of supporting a load of up to 12 kg.

The material does not require the use of cement-based and water-based solutions, which reduces the formation of debris and allows for "dry" assembly.

Plasterboard partitions are lighter and cheaper than brick, block, tiled partitions.

GKL is widely used for the manufacture of arched structures.

Plasterboard sheets have no smell, they are not electrically conductive, absorb excess moisture and release it in dry indoor air, they are able to "breathe".

With the help of plasterboard sheets, ideal surfaces are created that do not require additional leveling.

With the help of cuts from the sheets, you can get various curvilinear shapes, make columns.

The main disadvantage of drywall sheets is that the useful space of the room decreases due to the installation of the frame.

Plasterboard sheets are used for the manufacture of suspended ceilings, the design of curved surfaces, when zoning space.

The Russian construction market offers a large selection of gypsum plasterboard sheets from various manufacturers.

The lion's share of the market is occupied by the products of Knauf and Gyproc. The Russian company Knauf-Gips is a subsidiary of the German company Knauf, and the company Gyproc is from England.

Gyproc drywall is more expensive than its competitor, since it is produced in the EU countries.

The material under the Gyproc brand is mounted on a metal profile of the Russian manufacturer Alumasvet. It is recommended to use Rigips material (England) for sealing joints.

Knauf plasterboard is mounted on a metal profile developed by Knauf specialists.

Moisture resistant sheets are marked with the letters GKLV (moisture resistant gypsum plasterboard) and painted greenish.

To ensure high-quality work during the installation of drywall, it is recommended to use the accompanying materials specified by the gypsum board manufacturers.

About qualifications and tools

It is not necessary to have experience and skills in working with drywall. It is important to have hard work, perseverance, perseverance.

Of the tools, you cannot do without a puncher, a screwdriver, a plumb line, a rule or a building level, metal scissors. You will also need a pencil, hammer and knife.

Of the related materials, you will need a galvanized metal profile, self-tapping screws, dowel-nails, drills.

Assembly of walls and partitions

Getting acquainted with drywall is easiest to start with leveling the walls. This type of work can be done independently, without the involvement of assistants.

The most crucial stage is the installation of a galvanized profile frame. For this we will use Knauf's technology.

The system is a galvanized metal frame sheathed with plasterboard sheets.

A few words about the profile

A rack-mount profile "PS" is used, with a cross-section reminiscent of a channel. Serves as vertical posts. Profile size 28 × 27 mm. The import marking of the rack profile has the CW index.

The guiding profile "PN" of a similar sectional shape plays the role of a guiding base for the "PS" profile and the bridges between the rack profiles. Profile dimensions 60 × 27 mm. Marking of the western analogue of CD.

Corner profile "PU" provides fastening of external corner joints of gypsum plasterboard sheets.

The standard profile lengths are 3.0 and 6.0 m.

To mount the frame on the wall, markings must be applied, holes are drilled and dowels are installed. The step of drilling holes is selected from 0.4 … 0.6 m.

The markings are applied depending on the dimensions of the plasterboard sheets used.

Sheets should fit with their edges in the middle of the frame profile.

Before attaching the sheets, make sure that the required communications are installed: electricity, heating, water, sewage, etc.

The installation of plasterboard sheets should be started on walls without openings.

It is recommended to install the sheets in a checkerboard pattern, fasten them around the perimeter and in the center.

The sheets should be fastened with self-tapping screws, screwed in strictly at right angles, maintaining a distance of 10 … 15 mm from the ends of the sheet. In this case, the heads are necessarily recessed by 1 mm.

It is recommended to use glass wool, cork, isover, polystyrene as heat or sound insulation, laying between the supporting frame.

When installing drywall on walls with openings, follow the rule: the joints of the sheets are mounted at a distance of at least 200 … 300 mm from all corners of the opening.

Suspended ceiling

Installation of a false ceiling is carried out with an assistant and consists of several stages:

• The marking of the ceiling level is made;
• A horizontal line is drawn from the top of the ceiling along the entire perimeter of the room;
• A guide is attached along the horizontal line with dowel-nails in increments of 0.5 … 0.6 m;
• In the grooves of the guide, ceiling profiles are inserted, cut to size;
• It is recommended to maintain a distance between the axes of the profiles: for moisture-resistant gypsum board 0.4 m, for ordinary 0.6 m;
• The profiles are additionally fastened with hangers with an attachment pitch of 0.5 … 0.6 m.

Learn more about the installation of the ceiling and see the video. The online calculator calculates not only the number of drywall sheets required.

For greater rigidity of the ceiling frame, transverse inserts are installed between the longitudinal profiles using devices called "crabs".

Proceeding to lining the ceiling with sheets of plasterboard with subsequent finishing should be done only after electrical installation and other work.

Conclusion:

The main advantage of drywall is that if any part of the product fails, it can be easily replaced or repaired by hand.

Video:

Video: