How to fix drywall to the wall without profiles

Plasterboard has recently become one of the most popular materials for the repairs in the flats.Large in size, flat and smooth surface of the sheets allows to quickly eliminate the curvature of the walls, to prepare the room for subsequent finishing.In addition, if the FCL are attached to the carcass structure, it becomes possible to further insulate and soundproof walls and ceiling.

How to fix drywall to the wall without profiles

But the creation of the framework may not in all cases, since such a structure essentially "steals" valuable floor space.Therefore, for the owners of city apartments, planned to carry out repairs, often becomes more useful information about how to fix the drywall to the wall without profiles to loss of space in already crowded conditions, was minimal.

There are several methods like fixing drywall.But for any of them requires some training wall.

Preparations

Any work begins with the preparation of a set of necessary tools and acquire the materials.

Materials and tools

A. From the Tools needed:

• knife for cutting drywall.
• Carpenter's level, a plumb, a cord, a tape measure, a long ruler or rule, pencil or marker - for the pre-marking and maintaining constant control over the vertical surface in the mounting plates.
• Rubber and normal hammer.
• spatula or trowel
• capacity for mixing glue.
• screwdriver, electric drill with paddle-mixer.
• roller with a long handle and a soft brush.
• planer for cutting bevel

B. Materials for the work:

• sheets of drywall.Plasterboard, water-resistant gypsum plasterboard, and if gets off the wall near the stove or fireplace, the required fire-resistant - - Depending on the room can be used by ordinary GKLO.The number of sheets is calculated by taking into account the area of ​​the room's walls with a net area of ​​her window and door openings, and making the supply of approximately 15%.

number of sheets of drywall will quickly and accurately calculate calculator located below.

calculator for calculating the required number of drywall

• adhesive composition of cement or gypsum based.It may also, depending on the specific conditions to be used polyurethane foam or mastic.
• primer for pre-treatment of the wall.The particular type of primer, its consumption depends on the material and the quality of the surface of the walls.Detailed information can be found in the instructions from the manufacturer of compositions.
• Self dyubeli- or "fungi" - depending on the surface, which are attached lists.

Surface Preparation

Cleaning the walls and sealing defects

To plasterboard well fitting to the wall, and in the potential is still there is a gap between them does not appear mold colonies, or fungi, the surface should becarefully prepare.Do not neglect these measures, since they determine the life of the finish and integrity framework.

• If the wall has an old plaster, which is sometimes peeled off, it must be removed completely or partially, in the field of defects, as it will reduce the adhesion of materials to each other.

the presence of thick plaster "coat", consisting of several layers deposited at different times, it is recommended to remove completely.It may at any time begin to keep up with the basics, and with it go away, and sheets of drywall.

Thin-quality plaster layer does not become a hindrance for mounting plasterboard, so it can not be removed.

• After cleaning the walls of the old plaster on the surface may show up cracks or "shell."They need to be repaired, otherwise there may be collected condensate, which will contribute to the development of mold.

To repair cracks must first be to cut

Cracks must first expand.This is to ensure that the sealing material is reliably held inside.Advanced cracks and sinks definitely need a good clean up of small particles of sand and plaster with a soft brush, and then process the abundant primer composition.

approximate scheme of cutting cracks and crevices

• For filling surface imperfections is recommended to choose the repair compound, close to the base material, or the one that will have a high adhesion to it.If a crack wide enough and pass through most of the surface, they can be filled with foam.

gaps of small width, can be filled with a sealant that is flexible and will take the form of a crack during its expansion or contraction.

• Once the primer is dry, all the defects completely filled with the maximum density of the repair composition and are displayed in the general plane of the wall.If you show up on the surface of the protruding ledges, they just knock or brushes to a common level.

Further, the walls must be primed antiseptic deep penetration of the composition.

What a primer suitable for interior work?

The quality of the applied soil depends largely on longevity of the finish coat of walls.How to choose the right primer for walls under the wallpaper or a different type of finish - in a special publication of our portal.

This material is applied on the surface in one or two layers, each of which must dry thoroughly.The process is carried out using a soft roller and the inner corners and hard to reach areas are further processed by brush.

to ground Complete drying time indicated on the package structure, and it should be followed, since the installation of drywall should be carried out only in clean and dry wall.

marking surfaces

Once the walls are primed and dry, you should do layout.To do this it is best to use a laser level, but if it does not, then it is possible to do a standard set - a plumb line, a common building level, long ruler (the rule), a tape measure and a square.

preferred to carry out marking laser level

• When marking the wall is necessary to consider expansion gaps which must be left at the junction of plasterboard with a floor and ceiling.When shrinkage at home they will not be allowed to damage the sheets more rigid surface.

gaps should be between the surfacing material sheet and the ceiling 3 ÷ 5 mm, and the floor is raised GCR 8 ÷ 10 mm.On top of that bounces to control the horizontal line, and on the floor, these gaps will be easier to comply with, enclosing under plasterboard pieces of the desired thickness of plywood.Later, after curing the adhesive and secure fixing sheets, these supports are removed, and the gaps at the top and bottom webs filled with foam.If

• plasterboard sheet completely covers the height of the wall, in this case, the two lines will discourage - adjustment entire sheet and the top of the wall.This site will be closed cut from whole leaf fragment size.These elements can complement a single sheet only from above, but many masters professionals recommend distribute them in "staggered", ie alternately from above and below.

angles in the rooms is not always even, so with the help of a plumb vymeryat and accurately bounces vertical line along the junction of two walls.It is necessary to install and fix it on the first sheet, so that it was perfectly straight.On how he will be exposed and recorded, all depend on the evenness of the series.

Which glue should I use?

Installation of drywall sheets on the wall without a frame carried on by different degrees of surface roughness.Therefore, various adhesives may be used for the job.

can be divided into three main options:

• mounting on a flat wall;
• fixing on brick surface;
• pasting on the wall with large irregularities.

adhesive flat surface

For flat surfaces include concrete monolithic stone and plastered walls.Of course, they do not always have a perfect smoothness, but typically do not require a significant correction in alignment.You may need to exhibiting beacons of plasterboard or plaster mixture, if the surface will show a small bias in one direction or another.

on a flat wall or correct drywall stuck on any glue - it can be a part of gypsum or cement-based and polymer sealant or expanded foam.However, the most simple and fast installation option is sticking canvases onto the mounting foam.

adhesive foam, perfect for plasterboard

If the surface is completely flat and smooth, you can use glue, produced in the form of pastes, which are sold in special plastic tubes, cartridges and squeezed by a construction of the syringe or gun.

Clay as a viscous putty

adhesive cement or gypsum-based are made in dry form and require dilution with water immediately prior to installation process.The proportions of their breeding on the packaging, and they need to strictly follow.If you are using a cement or plaster composition before installing the wall paintings recommended lightly sprinkle the surface with an atomizer.

installation features a brick wall

Align plasterboard accounts and brick walls.If the quality of brick masonry and smooth, the installation of the GCR it is slightly different from fixing it on a flat surface.But be that as it may, such a wall assumes the existence of certain defects in the form of drops, and joints between the bricks.This suggests that the adhesive on the surface to be unevenly distributed, so - plasterboard web can be fixed firmly.In this case, the brick surface preparation is carried out as follows:

• With the help of a plumb line is determined by the vertical wall.If you find differences, which make up more than 20 mm, it is necessary to make the support of plasterboard bands - their width should be 100 ÷ 120 mm.Smooth bands may be secured vertically from floor to ceiling or parallel to these surfaces, depending on where the detected irregularities.These pieces of drywall will be "beacons" to secure the large canvases.

Glued strips become beacons To install drywall sheets

• Sometimes, instead of flat bands used rectangular pieces cut from the same drywall - their size may be approximately 100 × 150 mm.They are pasted on the wall at a distance of 150 ÷ ​​250 mm from each other, depending on the need.

aligning sheets of a brick wall, you can use any adhesive, but the most economical and reliable option is to use a composition of gypsum or cement base.If you apply a polymer paste or assembly foam, then these materials require too much, and not the fact that the fabric will be fastened securely.

One of adhesives for the installation of drywall

necessary to consider one more thing - the material from which made the bricks.If the clutch is made of red bricks and concrete blocks, you can use any glue - good adhesion is ensured.Cinder blocks and silicate material require special treatment, so they do not have a sufficiently high adhesion to certain compositions and must be strengthened.Ready glue dry mixes like are considered universal, but this is not always borne out in practice, so many masters of their upgrade by adding additional components in them.For example, 10 kg of cement-based composition can be made of PVA and 0.5 L of 1 kg of gypsum and gypsum-based mix 10 kg is added only 0.5 liters of PVA glue.

Anyway plasterboard fixed on a brick wall with glue, it is recommended to fix dyubelyami- "fungi".

Mounting on an uneven surface

In this case, the best would be to use glue, produced in dry mixes, because it will require quite a large number.Surface mounted with the big differences is similar to fixing sheets on the brickwork.Only in some areas of the wall will have in place a single layer of substrate-rectangle of plasterboard to glue two or even more.This alignment method requires more time, as each of the layers of the substrate must be completely dry before it is pasted next.

Curves walls need a very reliable fixation to the surface of the canvas with the help of dowels and dense filling of the space between the wall and the drywall, especially at the edges.

When used for walls leveling substrates, they can be mounted on the wall mounting foam and for bonding the main blades have to apply glue zameshenny of dry formulations.

Installation Drywall without frame

techniques applying different types of glue on the drywall sheets differ.

Installation of dry adhesive mortar

The most common material for fixing plasterboard on the wall - it is the glue on the basis of plaster.Often applied cementitious composition.However, both the first and the second are applied to the web on the same principle.

• Along the edges of the wrong side of the adhesive sheet is applied long dotted stripes or solid, as you need to when pressed to the wall structure is completely filled the gap between the substrate and finishing material.