External plasterboard: how to finish the facade

Hi all! Today I want to talk about such a material as external drywall. Recently a friend asked me if it was possible to sheathe a façade with it. I said that aqua panels would be more reliable, and that drywall, even moisture-resistant, should not be used for exterior decoration. It copes with humidity, but only in buildings and rooms. If you still bought drywall, then make the facade in 2 layers, and treat the joints with silicone-based putty. It is also possible to increase resistance to moisture by painting. But you also need to buy silicone-based paint. Let's take a closer look at how to carry out all the steps of the process.

What is the difference between external drywall and regular drywall?

Special sheets are used to decorate the façade of a house with plasterboard. They are treated with hydrophobic impregnation. GCR has the following properties:

• energy saving - heat remains in the house, cold does not enter the room;
• moisture resistance – this drywall does not allow moisture to pass through. Fungus and mold do not appear on the interior walls of the room;
• sound insulation – noise from the street is practically inaudible in the house;
• façade plasterboard does not deform under the influence of weather conditions.

On the practical side, there are the following properties:

• the smooth surface of the plasterboard makes the facade beautiful and attractive;
• there are a lot of finishing options;
• working with plasterboard does not take much time;
• the insulation laid between the walls and drywall is not exposed to external influences of temperature and moisture;
• façade plasterboard is safe for people and the environment;
• at low temperatures, drywall does not deform or burst.

With all the positive properties there are some disadvantages:

1. The facade of the house cannot be covered with any other type of plasterboard, except for façade gypsum plasterboard.
2. If drywall is constantly exposed to water, it will become deformed.
3. If the drywall sheets are constantly exposed to high temperatures, the structure will collapse.
4. GCR is fragile and breaks easily, so work should be carried out carefully and carefully.

When a set of deficiencies occurs, it is necessary to handle the gypsum board accordingly.

How to properly store GVL?

Store GVL

should be done in rooms with dry or normal temperature and humidity conditions. The manufacturer guarantees that the quality of the sheets meets the technical specifications provided that the consumer complies with the conditions of transportation and storage. The shelf life of the sheets is one year from the date of manufacture.

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Which profile to use when sheathing a house with plasterboard on the outside

To prevent the profile from rusting, use an aluminum type.
For exterior finishing, use a special aluminum profile coated with an anti-corrosion compound. It is produced by pressing. There is a profile of normal and increased strength.

Properties of aluminum profile:

1. The weight is light.
2. Durability – able to withstand a certain weight.
3. Rigidity – does not bend during installation and operation.
4. Aluminum profiles are available in different sizes.
5. The frame made of profile lasts a long time.
6. Using this profile it is possible to manufacture curved structures.
7. Working with this building material is simple and easy.
8. Aluminum profiles do not contain toxic substances and are therefore safe for health.

When creating a frame from a facade profile, it should be taken into account that the fasteners must be treated with an anti-corrosion compound. After installation, the space should be filled with thermal insulation material. This is mainly polystyrene foam or construction wool.

If the house is made of natural stone, the frame is not mounted. After fixing the heat-insulating material, the sheets are attached to the wall with special fasteners.

Cladding the facade of an adobe house

You can sheathe an old façade using both expensive and more affordable materials. Moreover, modern building materials used for the exterior decoration of a private house make it possible to carry out this amount of work in a short period of time. In addition, the facade cladding will not only perform a decorative function, but also serve as an additional thermal protective layer for a worn-out structure.

Facade cladding

Here it is worth immediately making a reservation that external finishing made of brick or cinder block will strengthen the house. This is very important for heavily worn-out buildings (with a wear rate of more than 40%).

Materials for covering a house with external plasterboard

Primer. To treat the surface outside, a soil mixture is used:

• façade primer – anti-corrosion. Prevents rust;
• antiseptic – prevents the appearance and spread of fungus and mold, fights the appearance of beetles and other pests;
• primer with deep penetration - for greater adhesion of building materials;
• hydrophobic composition – prevents the penetration of water and moisture;
• universal primer - has many properties and is widely used in outdoor work

Putty. It has the main task of withstanding temperature changes and alternating high humidity and dryness.

Putty can be of 3 types:

• starting – base;
• finishing – main. With its help, the surface is leveled and prepared for subsequent decoration;
• universal - can be used as a base or finishing finish.

When finishing exteriors, it is important to choose the right plaster.
The qualities that universal putty has: elastic, frost-resistant, durable, breathable, quick-drying, does not contain toxic impurities. This putty is easy to work with and sands well. The composition of putty mixtures is:

Which is better: heated floors or radiators?

Warm floorBatteries

• polymer – suitable for outdoor use;
• cement – ​​there is shrinkage;
• polyurethane - universal composition;
• gypsum - not recommended for street work, because does not tolerate moisture well.

With the right choice of building materials, finishing the facade of a house with plasterboard will not be difficult and will not take much time.

How to properly use drywall for exterior use

To create a beautiful individual house facade, you will need to create a metal frame. Elements must be galvanized to prevent rust. Before installing frame parts, you should prepare the surface. The facade must be clean and without hanging finishing materials. If there is a “belly” in the plaster or “fur coat” of the house, it should be removed. It is also necessary to remove the old whitewash. There should be no dust, cobwebs or dirt.

The surface is primed to prevent the occurrence of fungus and pests. After the primer has dried, this process is quick in the open air; markings should be made. Stretch the fishing line and hang plumb lines (to make the surface even). Installation of profiles begins along the perimeter of the wall, do not forget about windows and doors. After fixing the guide profiles, you should work on the vertical posts and horizontal struts. Each mounted element is checked for evenness with a level.

The metal frame should be made under the very roof and with a slight approach to the foundation line. Once the roof is sheathed, the top edge of the plasterboard wall will be hidden. Below, when insulating the foundation, the lower edge of the facade trim is sealed.

After installing the metal profiles, a corrugated wire is laid on top to illuminate the street. The entire surface is insulated with insulating material.

Reconstruction of an old house: arguments in favor

Choosing the option of demolishing a building requires the preparation of appropriate documents, which in itself is expensive. In addition, it entails a lot of costs.

To build a new house you will need:

• Demolition of the old building, followed by removal of construction waste;
• Permission to build a new one, purchasing a project for a new house and other paperwork, accompanied by a waste of money and vital energy;
• Making a foundation, pouring a screed, erecting a box, a roof and other labor-intensive processes;
• Connecting main communications (in this case, it is necessary to very accurately calculate the permissible load on the power cable, determine the correct slope of sewer pipes, etc.);
• Internal lining of all surfaces of rooms.

Reconstruction of an old house

All this work sometimes takes years to complete. And not everyone can afford such a luxury, while repairs can be completed in the shortest possible time and the walls can be covered with high-quality materials, investing significantly less money.

So, for reconstruction we need:

• Cladding the façade;
• Carry out interior finishing;
• If necessary, replace the old roofing material with new one;
• Carry out cosmetic repairs to the walls of the premises.

How to install drywall on exterior surfaces

Drywall is attached to different surfaces:

1. Tree (log house).
2. Brick walls.
3. Concrete walls.
4. Cement board.
5. Cinder block surface.

Almost any building material from which the house is laid out is made of a metal frame from galvanized profiles. After creating the frame, the strength and evenness of the surface are checked. Sheets can be fastened both longitudinally and transversely. Drywall sheets should be attached first to the corner of the house.

Fastening occurs according to the rules:

1. Fasteners must be galvanized or have a special anti-corrosion coating. The hardware is screwed in by hand.
2. Self-tapping screws should have a sharp tip and a semicircular head.
3. Fasteners are installed every 20 cm.
4. The screws should be turned in a level position.
5. There are 15 hardware for 1 square meter.

Knowing these rules, attaching drywall to the frame will not be difficult.

Installation of gypsum boards on a metal profile

When cladding external walls, waterproof plasterboard sheets are often fixed to a steel frame. The fasteners are self-tapping screws with a semicircular head. If the thickness of the guide parts and posts exceeds 0.7 mm, it is worth using fasteners with a special drilling end.

The screws must be 2.5 cm long or more, with a diameter of 3.5 mm. It is extremely important that the self-tapping screws used to fasten the GLK material have a protective coating. It will prevent the occurrence of corrosion processes.

When attaching facade plasterboard, a certain step should be observed: in the center of the slab - 30 cm, along the outskirts - 20 cm.

Attention! When screwing in the screws, you need to make sure that they penetrate perpendicularly into the frame profile.

Moisture-resistant plasterboard for exterior use is best mounted on a steel frame Source i1.wp.com

How to cover external wooden walls with plasterboard

This type of interior work is carried out using the frame method of installing gypsum boards on the walls, and you can choose either a wooden or metal frame. It all depends on the complexity of the design. After installing a frame made of wooden mounting strips or a galvanized metal profile, sheets of drywall are installed on it using standard self-tapping screws.

The advantages of such finishing can be considered the usual list - ideal alignment of the walls, simple and quick installation, the ability to lay communications into the thickness of the wall, elimination of complex preparatory work, relatively low cost of the process, installation by yourself is quite possible.

How to build a plasterboard wall yourself?

Materials for the construction of plasterboard walls

After drawing up a project or drawing based on the dimensions taken from the location of the wall, it is necessary to make a list of all the necessary materials so that during the work it does not turn out that something is missing and you do not have to interrupt work and run to the nearest hardware store.

Tools for installation

Without the necessary tools, as you know, it will not be possible to carry out any construction work. To erect a plasterboard wall, you will need a minimum tool kit, which includes:

Some nuances of installing plasterboard partitions

Before moving on to a step-by-step examination of the process of constructing a plasterboard wall, it is necessary to consider the features of some of the work so as not to return to these issues further.

• The frame for plasterboard sheathing can be made not only from galvanized metal profiles, but also from ordinary wooden beams. The second option will cost a little more, but the strength of the structure will, perhaps, be even higher.

If timber is chosen for the frame, then the horizontal jumpers are attached to the vertical posts with metal corners, of which four pieces (two on each side) are required to fix one part. For reliability and stability, they must hold the block both above and below.

Prices for popular models of screwdrivers

An example of a detailed diagram of the installation of a wooden frame under plasterboard sheathing.

1. Frame trim parts (frame) fixed to the permanent surfaces of the room.
2. The vertical posts of the frame are necessarily made from solid timber.
3. Horizontal frame jumpers that give rigidity to the structure.
4. The jumpers are secured to the vertical posts and trim beams using metal corners fixed with self-tapping screws.
5. Fastening the frame to permanent surfaces - dowels and nails.

• When attaching adjacent sheets of drywall, the edges of the two sheets are fixed to the boundary part of the frame, forming a joint. If each vertical or horizontal row of drywall consists of several l

  
  The joints of the plasterboard sheets should be spaced according to the principle of bandaging in masonry.
  ists, then the joints of different rows should be spaced apart. The seams between the sheets must necessarily fall either on a vertical post or on a horizontal jumper. Hanging joints are not allowed.

The recommended pitch between the centers of vertical posts is 600 mm.

• Due to the fact that the standard width of a plasterboard sheet is 1200 mm, and it must be fixed along at least three lines, along the edges and along the center line, the vertical posts are positioned so that the distance between their axes is 600 mm.

The head of the screw slightly pierces the outer cardboard layer and plunges into the sheet by about 2 millimeters.

• Fixing gypsum board sheets to the frame is done using special screws for metal or wood (depending on the material of the frame). The head of the self-tapping screw, after screwing it in, should be recessed into the drywall by 2÷3 mm - special bits for a screwdriver with a “skirt”-limiter are convenient for this.

When screwing in a self-tapping screw using such a bit, the limiter will rest against the surface of the sheet and will not allow you to accidentally “rip” the sheet through.
The screw head will be exactly at the depth required by the technology. The space above the cap is left to be filled with putty - this way the fastener will become completely invisible. The sheets are fixed to all posts and lintels of the frame, screws are screwed in in increments of 150÷200 mm.

Prices for waterproof drywall

waterproof plasterboard

Cutting drywall is a simple process, however, it requires accuracy and precise movements.

• It is very important to cut drywall correctly: if you do not know how this process is performed, you can ruin the material. A broken or even slightly cracked sheet is no longer used for installation on the wall as a whole. True, from its entire part it will be possible to subsequently cut out the necessary parts of smaller sizes.

To obtain an even fragment of gypsum board of the required size, you must first mark it on a whole sheet. A line is drawn along the marked points. Then, applying a metal ruler to it, a cut is made along it with pressure with a sharp knife.

A break in a cut sheet of drywall along the cut line.

At this stage it is important to cut the top layer of drywall. After this, the sheet is laid so that the cutting line is on the edge of the table. Light pressure is applied to the area protruding beyond the tabletop with your hand, due to which the gypsum layer breaks exactly along the cut line. All that remains is to cut the bottom layer of cardboard with a knife.

Cutting the edge of drywall - forming a chamfer for subsequent puttying.

• If you have to join two pieces of sheet that do not have a factory chamfer, then you need to make cuts along their edges with a knife or a special plane. The total width of the cuts should be approximately 10 mm. This groove is necessary to fill it with putty, which, together with the reinforcing tape, will bind the sheets together.

Doorway in a plasterboard wall.

• If a doorway is planned to be installed on the wall being built (and this is most often the case), it should be reinforced with timber. This is done in different ways:

- instead of a galvanized profile forming an opening, you can immediately use timber;

— wooden parts can be inserted into the internal space of a metal profile;

- instead of one metal post on each side of the opening, two are installed, at a distance of 50 mm from each other, and a wooden door frame is then installed in such a reinforced doorway.

• Experts recommend attaching two layers of plasterboard to the installed wall frame - this will increase the strength and soundproofness of the structure.

Cuts on the metal profile and the possibility of subsequent bending.

• If it is necessary to form parts with corners from a metal profile, cuts on its walls must be made at an angle. It is easier to carry out this process with metal scissors, but you can also make cuts with a grinder, taking the utmost care.

To ensure an even bend in the metal, the cuts on both side walls must be identical.

The lower part shown in the figure is often made, for example, to form the lintel of a doorway.

The gap between the floor surface and the bottom edge of the plasterboard sheathing.

• When installing plasterboard sheets on the frame, it is necessary to leave a deformation gap of 10÷12 mm wide between the plasterboard and the floor surface. To simplify this task and make the gap even, several scraps of the same drywall can be laid on the floors before installing the sheet in place. After attaching the sheet to the frame, these liners are removed. And the gap, depending on the type of room, is filled either with sealant (for example, in a bathroom) or with polyurethane foam (in rooms with normal operating conditions).

These were general recommendations, and now let's look at an example of how a plasterboard wall can be erected.

Construction of a plasterboard wall - step by step

The table below will show you step-by-step the process of constructing an internal plasterboard wall.

How is a plasterboard wall prepared for finishing?

The instructions in the table only touched lightly on the operation of preparing the sheathed wall for finishing. And this is an important issue that requires considerable skill and deserves separate consideration. Therefore, we invite the reader to go to the instructional article on our portal “Puttying drywall under wallpaper .

* * * * * * *

So, erecting a frame partition wall and covering it with plasterboard is a completely doable task even for a novice builder. Feel free to get down to business - and if you try, everything should work out!

Let’s conclude the article with a video in which craftsmen share their secret of constructing a partition with soundproofing capabilities.

External plasterboard: installation on a brick facade

All that is needed to start work is to choose the method of installing drywall, tools and materials, the correct dimensions and markings of the walls.

In this case, it is possible to finish the walls with plasterboard without a frame, if the difference in its plane is small and it is possible to use the adhesive method. If the difference is slightly different from the permissible one, you can always level the transition with special beacons made from pieces of plasterboard. If the difference is large, or the wall has significant defects, then it is better to use a frame.

Try to follow the algorithm, accurately take measurements and mark the wall for the frame and drywall sheets, install the structure efficiently and do not forget about the final finishing.

Drywall for external facade finishing

Exterior walls take on a stylish look.
A popular trend in cladding materials in construction is various façade panels. Plasterboard systems are a practical and modern way of finishing a facade.

Plasterboard panels for facades are an acceptable and optimal option for insulating external walls

buildings, reliable, highly effective protection from winds and moisture. Drywall for facade work has a unique, special structure that resists moisture, ensuring the moisture resistance of the material.

Features and technological data of external drywall

Due to hydrophobic impregnation, drywall for facing work outside the house becomes a reliable protective screen from natural, weather and climatic influences. Such slabs for external use are a productive energy-saving coating that is used for water and thermal insulation, leveling the effects of wind and air currents.

The material prevents the blowing out of fibers of heat-insulating materials, heat loss from the heat-insulating layer, and the penetration of moisture into the insulation.

Operating data of gypsum boards for external work:

• Aesthetically attractive appearance of facade finishing;
• Individuality of finishing;
• Resistant to moisture absorption;
• Long service life;
• Simplicity of exterior arrangement;
• Wind protection for any wind rose;
• Wear resistance;
• Resistance to temperature changes;
• Prevents the insulation from drying out;
• Environmental Safety;
• Frost resistance;
• Thermal insulation abilities.

Drywall for facade finishing is a means of wind protection. It adjusts the air pressure without reducing its vapor-permeable qualities.

Installation of drywall on a wooden frame

If the basis for a moisture-resistant gypsum board is a wooden frame structure, then when installing the material it is important to follow the following recommendations:

• Fastening is carried out using self-tapping screws, nails, staples. The use of the latter requires the use of special pneumatic tools.
• Metal fasteners must have a protective anti-corrosion layer.
• The recommended distance between fasteners along the edges of the panel is 15 cm, in the middle - 20 cm.
• You need to start the process of fixing the sheet from opposite corners.
• Depth of insertion of fixing parts: nails - 12 diameters, staples - 15, screws - more than 2 cm.

If, during fixation of gypsum boards for external work, the fastening element is deformed, then it must be removed. In this case, further fastening is carried out at a distance of 5 cm from the previous place.

The wood for the frame must be dried to 20% humidity, otherwise the timber will move and the structure will warp over time Source ob-otdelke.ru

Disadvantages of drywall for outdoor use

Despite all sorts of advantages, advantages and affordable cost, plasterboard has a number of limitations in its use for outdoor work:

• Facade cladding is performed exclusively with material specialized for this type of work;
• Prolonged contact with water leads to deformation of the sheets;
• Prolonged exposure to elevated temperatures leads to destruction of the structure of the slabs;
• Installation work and processing of gypsum boards is carried out carefully, due to its fragility.

Features of façade gypsum boards

Facade plasterboard panels serve not only to give an aesthetic appearance, but also to insulate buildings, protect against wind and exposure to atmospheric moisture. Therefore, facade gypsum boards have a special structure - the outer cardboard layer is impregnated with a special hydrophobic composition, due to which moisture does not penetrate into the cardboard.

In addition to protecting the house from the effects of precipitation and air currents, plasterboard sheets serve as an energy-saving coating that prevents warm air and insulation fibers from blowing out. Particular attention should be paid to the beneficial performance characteristics of this building material:

• treating the walls with plasterboard makes them perfectly smooth;
• contains only natural ingredients, which is why it is considered environmentally friendly;
• not exposed to temperature changes;
• We are vapor permeable, which prevents moisture from accumulating in the insulation;
• easy to install;
• fireproof material;
• serves for many years without repair;
• does not require special care during operation;
• affordable.

When choosing a gypsum board you need to know:

• For façade cladding, only special moisture-resistant boards are used;
• prolonged contact with water leads to destruction of the slabs;
• cuts well and is highly flexible.

Exterior finishing with plasterboard

Installation work involves the construction of a frame. The façade material and base are marked. This type of drywall is easy to cut and can be processed; it is installed on the surface:

• Wood and lumber;
• Covered with siding;
• Brick walls;
• Cement slabs.

Installation of slabs is possible in the longitudinal and transverse directions to the sheathing of the metal frame. Installation of sheets begins from the corner of the house. In this case, make sure that the vertical joint above the door frame or window is above the opening, and not the vertical post that limits it. With the longitudinal installation method, the vertical seams are shifted by one step of the frame posts. To achieve the highest possible air permeability, joints along the horizontal axis are avoided. To do this, attach drywall as long as the height of the wall.

A non-hardening type of sealant is applied to the joints. This measure will protect the core of the sheet from moisture and increase breathability. With high-strength masonry walls of the house, drywall is attached directly to the wall with screws.

A few words about installation

Facade gypsum plasterboard has its own fastening features:

• Facade plasterboard is mounted on a finished frame, which can be cement slabs, brick walls, lumber and wood, or a specially prepared metal frame. The slabs can be installed both lengthwise and crosswise.
• The installation should begin from the corner of the house so that the vertical joint does not fall above the vertical post of the doorway. Therefore, before starting work, markings are carried out on the base and gypsum board slabs.
• To ensure tightness, the joints must be sealed with non-hardening sealant.
• The slabs are fastened to the base using galvanized hardware or screws that have an anti-corrosion coating. You can carry out the work manually or use a special tool.

Drywall is also successfully used for interior decoration. We talked about this here.

How to use drywall for exterior work

Fastening is carried out with galvanized hardware or screws coated with an anti-corrosion compound. The size of the screws is selected in accordance with the thickness of the structure frame. Hardware is screwed in manually or using a pneumatic tool. Features of external work on covering the frame with plasterboard:

• Self-tapping screws with a sharp end and a semicircular head are used;
• The head of the screws should not damage the integrity of the cardboard;
• The step for attaching the slabs to the frame slats is 20 cm;
• The screws are screwed in at an angle of 90 degrees;
• The approximate consumption of hardware is 15 pieces per square meter of gypsum plasterboard.

Façade profiles: for external mounting

For external work, an aluminum anti-corrosion profile is used. It is made by pressing. The composition includes aluminum and its magnesium alloys.

The strength of the product depends on the chemical composition of the alloy. By indicator:

• Normal strength;
• Increased strength.

Performance characteristics of aluminum profile:

• Ease;
• High load-bearing strength;
• Sufficient rigidity;
• Large selection of sizes and models;
• Durability;
• Versatility;
• Plastic;
• Resistance to aggressive environments;
• Does not accumulate static charge;
• Possibility of implementing designs of any complexity;
• Smooth surface;
• Easily amenable to all types of processing;
• Easy installation;
• Thermal conductivity;
• Does not deform under the influence of temperature changes;
• Fire safety;
• Not high cost;
• Environmentally friendly material.

Moisture resistant exterior drywall

A moisture-resistant analogue for facade finishing (GKLV) is widely represented on the construction market by various manufacturers. The material is not afraid of water and has high water-repellent properties. GKLV for external work differs:

• Contains antiseptic components;
• Reinforced with fire-resistant properties;
• Huge range of standard sizes;
• Versatility of use;
• Sufficient plasticity;
• Simplicity of installation work;
• Thermal insulation qualities.

Moisture-resistant boards are installed in a double layer. The first layer is attached with dowels, the second is glued. For additional protection, they are coated on both sides with a hydrophobic spray. The joints are filled with a hydrophobic insulator.

Finishing the balcony with external plasterboard

The cladding of the open-type balcony is made with moisture-resistant plasterboard. The balcony is pre-insulated and protected from atmospheric influences. Double-glazed windows are installed, taking into account the following factors:

• A frame is built under the glazing and secured to the load-bearing wall of the building;
• Insulate the balcony floor;
• The glazing must be airtight.

Sequence of work:

• Lay electrical wiring for lighting;
• Install the frame sheathing under the insulation and on the ceiling;
• All cracks, seams and joints are filled with polyurethane foam that does not contain toluene;
• Drywall is installed, fastening is carried out with self-tapping screws;
• Seal the seams;
• Treat with primer and putty the surfaces;
• They begin to carry out the final decorative finishing work.

Decorative columns made of external plasterboard

Drywall for facade finishing is flexible, easily takes the desired shape, so its scope is varied. Owners of private housing construction can experiment and look for non-standard ways of exterior design.

Facades with columns are always an impressive type of decoration. Gypsum plasterboard columns perform an exclusively aesthetic function. They visually increase the height of the building. Types:

• false columns are a decorative design to give your home an individual style. They are hollow inside, this space is used for original lighting, water pipes and other communications are hidden in them;
• Support columns are unattractive concrete products that are sheathed with plasterboard.

Tips for decorating residential buildings:

• Several columns are installed - one column is not acceptable, the symmetry of the elements is important;
• The style is maintained by the columns in the same style that was used to decorate the entire house.