Finishing exterior slopes on the windows

Finishing of external slopes is the last and necessary moment in the installation procedure of a metal-plastic window. At the final stage it is necessary to hide the rough surface of the walls, fixings, foam. It is not necessary to postpone this important moment "for later". Facing the slopes from the outside gives the window and the entrance group a visual appeal and completeness. It masks the unsightly stripes of foam and cracks formed during installation, and more importantly, it helps protect the structure from the street from destruction. Preserves its original properties, ensures durability.

Functions and the need to finish the external slopes

In addition to the purely decorative component, external slopes perform the following tasks:

  • provide additional insulation of walls and windows;
  • protects the layer of foam from exposure to sunlight, moisture penetration and temperature shocks. Moisture-saturated foam collapses when it freezes and loses its insulating and noise-insulating properties;
  • prevent condensation in the frames and the formation of fungus;
  • serve as additional protection against external noise.

Do not delay the execution of these works for the long term. During this time, irreversible changes may occur in the design, which will entail the need for repairs and even replacement of windows.

Materials for slopes

For finishing the external slopes on the windows use a variety of materials. The most popular facing:

  • plaster;
  • plastic;
  • polystyrene foam;
  • metal;
  • vinyl siding;
  • drywall;
  • natural stone;
  • sandwich panels.

Each of these options has certain advantages and disadvantages. Therefore, before making a final decision, it is necessary to get acquainted with their characteristics.

Plaster

Plastering is the most economical way to trim slopes. For exterior work, special formulations are recommended for facades with thermal insulation additives. The material is applied to the prepared surface in several layers, each of which must be allowed to dry well. The mortar must completely cover the mounting foam and reach the frame. The thickness of the layer can not exceed 2 cm. Therefore, this material is suitable for relatively flat slopes. The resulting coating is carefully polished and painted.

The advantages of this type of finish include:

  • fire resistance and strength of the material;
  • low cost plaster mixes and necessary tools;
  • the possibility of independent work.

Minuses:

  • the process takes a long time - 3-4 days;
  • the coating quickly gets dirty, cracking is possible;
  • this type of finish has low thermal insulation properties;
  • performance of work associated with the formation of large amounts of dust and dirt.

Plastic

The use of plastic sheet allows you to perform finishing work as quickly and accurately as possible. The panels have an aesthetic appearance, they are durable and practical. They do not need additional finishing, as they are ideally combined with frame material and form a harmonious and complete solution in tandem.

Pluses PVC slopes:

  • long service life;
  • extensive color palette;
  • low thermal conductivity;
  • no condensation;
  • resistance to moisture and mold.

Weaknesses of plastic:

  • need for replacement in case of damage - can not be restored;
  • low noise and thermal insulation properties.

Siding

Vinyl siding is ideal for facing external slopes. It is presented in the form of hollow plastic panels that are attached to each other using special locking systems. The material allows in a short time to create an aesthetic coating with a certain level of insulation and soundproofing. Slats do not require additional decoration and complex care. As an additional insulation, the space between the siding and the wall is recommended to be filled with mineral wool or foam, and the joints should be decorated with decorative corners.

Advantages of vinyl siding:

  • DIY installation is possible;
  • slopes are easily cleaned from dust and dirt;
  • plastic does not appear fungal formations;
  • many color options;
  • long serve with careful handling.

Disadvantages:

  • may change color when exposed to intense ultraviolet radiation;
  • insufficient shock resistance.

Drywall

Another inexpensive option - plasterboard. Typically, this material is used for interior work, due to insufficient moisture resistance. But it is quite suitable for sheathing external slopes in the event that the windows overlook a glazed loggia, balcony or terrace. For these purposes, suitable moisture-resistant drywall. It allows you to quickly create a perfectly flat surface that facilitates the process of applying plaster.

Before mounting the plates it is necessary to thoroughly treat the surface with an antibacterial composition.

Advantages of drywall finishing

  • Reasonable material price.
  • Easy installation.
  • Low weight, which facilitates the work.
  • Good thermal insulation.

Disadvantages:

  • Low strength - even a not very strong blow can lead to the formation of potholes, dents and chips.
  • Low moisture resistance.

Sandwich panels

For lining slopes used three-layer plastic panels, 10 mm thick with a "filling" of foamed or extruded polystyrene. They have low thermal conductivity and do not require additional finishing. The plastic used as the outer layers is similar in color and appearance to the window profile. Fixed panels must be protected from moisture by a plastic corner. This will not only preserve the integrity of the material and will not allow it to delaminate, but also give the structure a complete and aesthetic appearance.

Pros sandwich panels

  • Long service life - in the region of 25 years.
  • Easy care.
  • Quick and easy installation - in 1 day.
  • Low weight.
  • High moisture resistance.
  • Resistance to ultraviolet and high temperatures.
  • Good soundproofing ability.
  • High thermal insulation characteristics - additional insulation, for example, mineral wool, as is the case with conventional plastic panels, are not required.
  • A wide selection of different colors, as well as surfaces with imitation of natural wood or stone.

Minuses:

  • with prolonged exposure to high temperatures may change the color of the product.
  • difficulties in transportation due to the impressive size of the panels.

Styrofoam

The slopes covered with foam plastic will save heat in the house and protect it from external noise. And it is not at all necessary to reinforce the plates, cover them with several layers of plaster and paint. It offers buyers a modern material with a waterproof coating of marble chips and acrylic binder components. This layer has sufficient strength and flexibility at the same time. The covering does not crack and is not showered. The material is produced in the form of ready-made thermo-chassis - corner elements, 2 cm thick. The corners can be used for insulation in conjunction with thermal panels or separately. You can independently bend the plates to form corners with the help of special devices for cutting polystyrene.

Foam slopes protect against:

  • street noise and cold;
  • dampness and mold;
  • the need for frequent repairs - thermocouples have rounded smooth corners, which do not appear chipped.

The undoubted advantages of the material are the ease of its installation, the simplicity of calculations of the number of elements necessary for finishing, the originality of the appearance of the window composition.

Thermal angle with the addition of flexible clinker is perfect for the design of window and doorways of a private brick house.

Metal slopes

The choice of metal as a finishing material for exterior window slopes is a reliable, aesthetic, durable solution. This is a durable coating, which is not afraid of any moisture or sudden changes in temperature. Iron perfectly protects from cold and noise, and thanks to a special anti-corrosion coating will serve for many years. The variety of the proposed shades will allow you to choose a harmonious frame for any window that will successfully fit into the facade of any color.

Advantages of metal slopes:

  • Possess unsurpassed resistance to influence of an atmospheric precipitation.
  • Serve as reliable protection against mechanical damage to walls.
  • Differ in thoroughness and aesthetic appearance.
  • Quick and easy to install, and do not require complex care.

The disadvantages of such structures can be attributed only to their relatively high cost. But during the operation it is not necessary to regularly invest in their repair.

Slopes of natural stone

Natural stone trim is a flawless, stylish and sophisticated appearance of slopes, unsurpassed durability and guaranteed durability. The variety of materials offered - shell, sandstone, limestone, dolomite, wild stone provides ample opportunities for the implementation of a variety of design ideas. The stone for many years retains its original immaculate appearance. It is very easy to maintain and does not require additional investments.

Stone products are not afraid:

  • sharp temperature changes;
  • exposure to direct sunlight;
  • interactions with aggressive chemical compounds;
  • mechanical effects.

Minus this type of finish only in its high cost. But if you count the amount of time that a stone covering will last, its acquisition will seem like a more than practical and cost-effective step.

The need for warming - what and how to warm

Insulation of the slopes helps to preserve heat in the room, prevents the increase of humidity inside the room. Consider the possible options for insulation, which is advisable to apply in this case:

  • mineral wool - is moisture resistant, provides insulation windows and reliably protects against the penetration of external noise. Insulation must be fixed on a special grid, which is glued to the wall;
  • foam - has good heat and sound insulation properties, easy to install. You can buy ready-made slopes of foam. Mounted on metal profiles;
  • Expanded polystyrene - waterproof cellular material with high thermal insulation properties;
  • sandwich panels - option for finishing, endowed with insulating properties - the middle layer is made of extruded polystyrene foam.

Self-finishing of slopes with plaster

Plastering exterior slopes should be immediately after hardening of the mounting foam. It is necessary to completely exclude the possibility of impact on its integrity of environmental factors.

Materials and tools

The speed and efficiency of work depends not only on the skill of the master, but also on the availability of all the necessary materials and tools. Therefore, prepare them in advance so that they are all at hand.

You will need:

  • capacity for the preparation of plaster mixture;
  • construction mixer or drill with a special nozzle for mixing components;
  • set of spatulas of various widths. You will also need a corner option;
  • Master OK;
  • building level;
  • gon;
  • wide brush with soft bristles;
  • plaster grater;
  • building mixture for facade work;
  • putty for exterior work;
  • decorative plaster;
  • fiberglass reinforcing mesh;
  • primer solution.

Selection and preparation of plaster mix

As a basic material for plaster, you can use the usual sand-cement mixture. However, such a composition does not differ in durability and does not possess "insulating" properties. Therefore, for such works, a special facade plaster is better suited, preferably “warm”. In addition to cement and gypsum, reinforcing components, loose insulators of natural origin and plasticizers are added to the composition of such materials.

Such mixtures have good waterproofing and noise insulation characteristics. Ready-made compounds have good adhesion. Due to the homogeneity and fine consistency of the solution perfectly adheres to the surface. Of course, such a mixture is more expensive than a concrete solution, but not so much is needed for the design of slopes.

If gypsum is present in the composition of the material, careful adherence to the instructions for preparing the mortar is a prerequisite for preserving the characteristics of the material. In addition, the plaster quickly hardens, so kneading the mixture is better in small portions.

Step by step plastering process

  1. We clean the slopes of the old plaster. It is advisable to completely get rid of the remnants of the coating, which later may crack.
  2. If the cleaned surface is too smooth, it is necessary to increase its adhesive characteristics with the help of notches.
  3. Remove dust from the surface.
  4. Apply the first - starting plaster layer and align it with the rule. It is recommended to apply several thin layers on the upper slope.
  5. We form a beautiful corner with an angular spatula.
  6. Glue the reinforcing mesh.
  7. Smooth the surface with a putty and apply a primer.
  8. Apply the final layer of material and paint. You can use decorative plaster.

Master class finish slopes polystyrene foam

Finishing the slopes of polystyrene foam allows you to simultaneously align and insulate the openings. To do this, use the plate thickness of 15-20 mm. When working with this material, it is necessary that the surface is as flat as possible, Styrofoam does not differ in plasticity, but on the contrary, it has increased rigidity and brittleness. Therefore, on significant bulges, it can crack or even break. The advantage of this method of finishing is that it is not necessary to have deep construction knowledge to perform it and installation can be done by hand.

For the work will need:

  • knife for cutting polystyrene plates;
  • mixer for the preparation of tile glue;
  • a set of variegated spatulas;
  • construction square, ruler;
  • level;
  • foam thickness of 15-20 mm;
  • tile adhesive suitable for outdoor use;
  • plaster grid;
  • metal perforated corners.

Finishing steps:

  1. Properly prepare the surface - cleaned of dust and cement mortar residues, gloss over existing cracks and crevices with a putty or cement.
  2. We cut out the details of future slopes from foam and connect them together with glue.
  3. Apply glue to the surface and fix the prepared parts. Do not save glue, since voids can form between slopes and polystyrene foam. It is better to remove the excess composition with a rag. In the process of gluing, we check the installation with the help of a level. After the glue dries, you can additionally secure the material with dowels. It is better to drill holes in advance or a couple of hours after gluing the plates. The main thing - to prevent the displacement of the foam.
  4. We glue the surface on which the window sill will be installed.
  5. The next stage - we apply the starting layer of putty, qualitatively gloss over all the joints and gaps. We superimpose the painting grid serpyanka.
  6. We mount the perforated corners and apply the finishing layer of putty.
  7. After drying, the surface can be painted with paint for the facade. Apply it should be in several layers.

Before applying the paint, glue the glass along the contour with masking tape. This will save the window from getting paint, and save you from the tedious rubbing of the spray.

Features of finishing slopes with drywall or sandwich panels

The technique of finishing the slopes of these materials is similar. The difference lies in the fact that drywall requires finishing, and sandwich panels do not need it. Therefore, they are ready for operation immediately after installation.

For work are required:

  • sandwich panels or sheets of drywall (moisture resistant);
  • L-shaped profile - metal or plastic;
  • glue;
  • outer perforated corner or F-shaped profile for decorating the protruding angle of the slopes;
  • construction knife - for cutting panels;
  • level;
  • screwdriver or drill;
  • ruler;
  • construction square;
  • marker.

Stages of installation of sandwich panels

  • Clean the surface. Remove dust, fragments of loose plaster, drops of mortar. Ground the surface and treat it with antibacterial composition. It is possible to use means two in one. It is necessary to wait until the surface is completely dry.
  • The starting profiles are fixed to the frame, in which plastic or plasterboard panels will be installed later. Installation of the profile is carried out around the perimeter of the window with self-tapping screws. Fasteners are installed in increments of 20-25 cm. Depending on the material chosen, the required width of the profile is selected.
  • A wooden rail is mounted along the outside corner of the slopes. Its width is 10-12 cm, thickness - 1 -1.2 cm. This lath acts as a leveling bar on which the external profile is fixed. It will hide the distance between the wall and the finishing material, as well as hide the unsightly edge of the panel. The profile consists of two elements.One of them is mounted on a wooden rail, the second - on the end of the plate. They are connected using the locking system - thorn-groove. In the case of drywall, you can set the usual corner.
  • We install insulation - mineral wool is fixed on the adhesive in such a way that its thickness changes. Closer to the frame have a thicker material, and along the outer border - thin. If foam is used as insulation, apply it directly to the panel before installation.

It is important not to overdo it with the amount of foam - it can be too much and then it will inflate. And if it gets on the outside, removing it will be difficult.

  • At the upper end of the side parts, with the help of a sealant, we fix the inner corner profile. It serves to connect horizontal and vertical panels.
  • Install the side plates.
  • Apply a layer of foam on the upper horizontal panel, insert it into the slots of the corner profiles and press it well.
  • We make the end of the upper plate using an F-profile or a decorative corner.

Installation of plasterboard panels

It is even easier to sheathe slopes with plasterboard plates, since there are several options for mounting them:

  • on the batten - with a sufficient slope width;
  • on a special profile;
  • straight to the wall - if the latter has a relatively flat surface.

When installing the screws are screwed straight through the plate. Their caps do not need to be disguised, as the material in any case will require finishing. Layers of putty and paint reliably hide joints and fasteners. If you plan to make "warm" slopes, mineral wool fits on the same principle as in the previous version. Foam can be wound through holes that are drilled after installing the panels. Drywall needs to be reinforced, so it is reinforced with a painting grid at the filling stage.

Problems associated with improper trim slopes

The main rule, the observance of which will allow to avoid problems during the operation of a plastic window and doors - timely finishing of external slopes. It is unacceptable to leave permanently open seams. Under the influence of moisture and ultraviolet foam crumbles, collapses and as a result - loses its insulating properties.

There are a number of installation errors that can lead to undesirable consequences.

The most frequent errors:

  • excessive removal of foam from the seam;
  • too rigid fixation of the panels to the profile;
  • application for facing the opening of unsuitable materials.

What consequences can the above-mentioned defects entail?

Mistakes can cause the destruction of the foam, the shedding of the wall and, as a result, the penetration of moisture and the formation of fungus despite regular ventilation. Some problems may appear within a few days, and you will learn about others only after a few months. It is impossible to determine the exact cause of their occurrence without disturbing the integrity of the slopes. But some signs that mistakes are made during the finishing of the opening can be determined by education:

  • condensate;
  • ice in winter time;
  • whistling and howling wind.

Conclusion

To maintain a comfortable microclimate in the house, modern windows are necessary. And the first thing to do after installing them is to properly arrange the external slopes.

Watch the video: How to Replace a Rotted Windowsill (March 2024).

Leave Your Comment