This element allows you to give the work a finished look, and if plaster is used as finishing, then the corners smooth out the transitions between different types of material.
All existing elements can be divided into several groups according to their properties.
To understand how to choose the right corners for PVC windows, it is recommended to pay attention to their characteristics, as well as instructions for self-installation.
What are they?
A corner for slopes of plastic windows is a type of fittings that is installed after installing a double-glazed window on the slope of a window.
Corners perform not only a protective function, but also a decorative one .
This element is made from various materials and protects slopes from wear.
It often happens that unprotected slopes are constantly worn out for various reasons: you can accidentally touch the slope while passing by, animals can climb on the window sills and also damage the corner itself, which was finished with plaster, putty or other materials.
Note. The slope corner will protect the surface and extend the life of its finishing.
Purpose
Corners have several main functions :
- Protect corners from wear. This was mentioned above, we just need to add that the wallpaper pasted on the wall will be well protected from defects at the corner.
- Hides unevenness. If, during the repair process, unscrupulous craftsmen performed poor quality finishing of the slopes and did not remove defects, then such an element of fittings will perfectly hide them.
- Universal function. Using such corners, made of plastic, aluminum or other material. You can seal transitions and irregularities on almost any surface that has corners. For example, if one surface does not fit tightly against another at a corner, you can easily use this type of fittings.
The elements are colored, so they can easily be used as decoration and diversify your home interior in this way.
What are they?
All corners for slopes can be divided into several groups according to different properties: by material of manufacture, by place of use, by design . Once you understand the types of these accessories, you can purchase them yourself in the store.
According to the material of manufacture
Traditionally, manufacturers of window fittings produce the following types of corners for slopes:
- metal;
- plastic;
- wooden.
Aluminum is most often used in metal products. This is a durable material that is lightweight.
Important. Aluminum corners are used in places where increased rigidity is needed and a plastic corner cannot cope.
Metal corners can be solid or perforated.
They are available in different colors and are well suited for hiding the joints of slopes with drywall.
Such products are mounted using glue; if the corner is perforated, then after installing it, the element must be covered with a layer of putty.
Plastic corners for window slopes are considered the most common. Here are a few of their advantages :
- light weight;
- different shapes and colors;
- easy to cut;
- Fixes perfectly with glue, putty or self-tapping screws;
- hide all the irregularities on the wall;
- have a long service life;
- have low cost.
Corners of this type can be used without further finishing . They are sold in pieces or pieces of a certain length, which you can cut yourself.
Wooden corners for slopes protect them or act as decoration. They can be internal or external, but both options can be used, since the wood has the same pattern on both sides. Installation is carried out using adhesives or self-tapping screws. Wooden fittings are made from pine, alder, linden or oak.
By place of application
According to the place of application, all corners for slopes can be divided into 2 groups :
- for internal;
- for outdoor.
This difference is determined by the type of finishing work. The outer corners have 90 or 105 degrees. If the angle is 90 degrees, it is fixed so that only one part of the edging is visible. If the turn is 105 degrees, then the fittings are attached with both shelves to the top.
Note. Internal elements make it possible to hide all unevenness at the joints between surfaces.
By design
Angles for slopes are distinguished by design. For example, we can highlight the following :
Equilateral . They are often used to make window slopes even, as well as strengthen them and add rigidity to the corners.- F-shaped . They will help give the end a decorative look, as well as level the overall plane. Used for finishing window openings.
- Removable . Equipped with a latch to facilitate repairs. One of the advantages is that you do not need to remove the slope profile.
- Non-equilateral . One side of such fittings has a smaller height than the other. If the window is of an arched type, then an unequal angle can handle such a slope.
- T-shaped . To hide the joints between an uneven wall and a slope, this type of fittings is used.
The corner design is selected depending on the requirements of finishing work and the structure of the window opening.
When to apply
The corner part of the wall is covered with decorative elements in several cases:
- If the corner has visually noticeable defects: curvature, “dimples” or protrusions that were not corrected with plaster;
- When the protruding part obstructs the passage or is located next to the “pedestrian” area. Accordingly, it will constantly be touched, erased, scratched. Over time, mechanical damage will become noticeable and negatively affect the sensitive wall finish and its appearance;
- If without them the interior does not look complete;
- To prevent the destruction of the outer corner of the building and give the exterior a neat appearance.
The installation of elements usually completes the renovation: they literally become the finishing touch in the design.
How to choose?
To independently select fittings for the slopes of a plastic window, you should pay attention to the following nuances :
- bend angle of each side of the slope;
- side size;
- budget for corners;
- product color;
- material of manufacture;
- type of finish.
Knowing the bend angle of each side of the window slope, you can decide on the design of the fittings. For example, if the corner is too large, then external corners for windows will do. The size of the side is also important; this determines all the dimensions of the fittings. It is necessary to take into account the cost of the corners in advance, because elements of different materials will have different costs.
Note ! Plastic products will be much more affordable than aluminum or wood.
The color of the product is selected according to the interior design, but most often they prefer to install traditional white models of fittings.
Sometimes the apartment owner chooses wood if the double-glazed window itself is also framed in a wooden frame .
Metal corners are more suitable for windows made of aluminum profiles - they will be in harmony with each other.
Average prices in the Russian Federation
Corners for framing window slopes can be purchased at any construction market in our country at the following average prices:
White plastic products – from 30–70 rubles. for 1 p.m.- Plastic products with wood lamination – from 50–110 rubles. for 1 p.m.
- Wooden corners made of pine, oak, birch, larch - from 150–300 rubles. for 1 p.m.
- Galvanized steel corners with powder painting - from 150–450 rubles. for 1 p.m.
- Chromed stainless steel products - from 450–500 rubles. for 1 p.m.
The cost of these elements depends not only on the material and size, but also on the quality of the finishing coating, which affects the service life of the product.
Main characteristics
Among other characteristics, such as fastening method, material of manufacture, manufacturer, color and weight, special attention should be paid to the dimensions of the fittings. Corners for slopes come in the following sizes :
- 10x10;
- 20x20;
- 25x25;
- 30x30;
- 40x40;
- 50x50.
All dimensions are indicated in mm, so it’s easy to figure out which length is best to choose for your window. The smallest ones are suitable in those places where you just need to strengthen a corner, and those that have dimensions of 50x50 mm will already allow you to hide serious imperfections in the finishing.
Manufacturers also produce corners with dimensions of 60x60 mm. The entire size range is available in both plastic, aluminum and wooden models. Wider elements are often used for exterior decoration.
Important! The Russian market has corners of local production and foreign production. They are supplied in 2700mm lengths and can also be sold to order.
How to glue the corner?
To install fittings on a window slope, you need the following materials :
- glue;
- self-tapping screws;
- masking tape.
Self-tapping screws are often used when the corner is made of wood. Often, wooden fittings are attached with glue, but when it is necessary to securely fasten an element, self-tapping screws are more often chosen.
Masking tape is used to prevent any remaining adhesive from getting onto the finished surface. The choice of glue is approached responsibly . For example, the best adhesive option is liquid nails.
When selecting glue, you should pay attention to what the glue is intended for.
If you have to work with a plastic corner, then the adhesive composition should be designed for PVC products.
Liquid nails work well for the job . This material does not lose its performance characteristics over time; it does not turn yellow like sealant.
By the way, the sealant can also be easily washed off with water over time, which does not add practicality to this material.
Important. Liquid nails create a single monolithic structure with a corner; it is even possible to stick a window sill on them.
Briefly about the main thing
Plastic corners come in different colors, sizes and cross-sectional shapes. They are intended for decorating external and internal corners, end edges of sheet finishing, and installation joints in one plane.
To glue the fittings, liquid nails, adhesive-sealant, polyurethane glue or liquid plastic are used. The compositions differ in technical characteristics and color.
According to the technology, installation is carried out in 3 steps: preparing the base and corners (cleaning, cutting), applying glue, fixing the planks.
Step-by-step instruction
To fix the corners on slopes yourself, it is recommended to consider step-by-step recommendations: for each type of corner they will be the same, the only differences are the material of manufacture and the installation location. Using plastic fittings as an example :
- Attach the products to the wall and make the necessary marks for height and width.
- Use metal scissors to make cuts: for the inside, cut at a right angle, for the outside - at an angle of 45 degrees.
- Apply glue to the inside at intervals of 1-1.5 cm.
- Press the product against the slope and hold it for several minutes; you can fix it with masking tape for a while.
If wooden corners are used, they can be attached to wooden surfaces with self-tapping screws. Often an adhesive composition is also used. But here it is important to understand: before work, the wooden element must be treated with an antiseptic to prevent the appearance of mold.
When working with metal corners, if they are perforated, they are attached to putty. If they are decorative, then the fixation is carried out with glue.
Important! Particular attention should be paid to the slopes in the arched window. Here, 3-meter sections are used, which must be carefully laid along the arch. The upper arch is glued starting from the central part of the arch. Then the sides are laid, all joints are cleaned and leveled.
Learn more about how to glue corners to slopes in the video:
Options for installing corners on walls
Before gluing the corners, decide on the installation method. There are two of them.
- To the wallpaper.
This option is suitable for wallpaper with shallow relief, but be careful when finishing slopes with deep embossing, as due to the loose fit of the corners, cracks may form in which dust collects.
- With cutting a strip on the wallpaper to apply the glue directly to the wall. To do this, follow this action plan:
- Attach a corner to the installation site, level it and press it to the wall surface;
- using a sharp knife, cut off the wallpaper on both sides of the overlay;
- Apply glue to the plastic corner and install it in the intended place;
- secure the corners with tape designed to set the adhesive;
- After 24 hours you can remove the tape.
If you are not sure of the accuracy of cutting the blanks, you can first try on the part for the finishing area, and mark the place of the cut with a pencil.
Marking
Possible difficulties and errors
One of the mistakes is the wrong choice of mounting adhesive . Often, when doing the work independently, they do not pay attention to the composition of the glue and its purpose. As a result, over time, the glue begins to move away from the structure and wears out.
Another mistake is using corners that are not suitable for the design: you need to choose only those fittings that are specifically suitable for the given case.
also not recommended to apply glue too liberally to prevent excess of it.
Pros and cons of use
The main advantages of using such fittings:
- Lightweight - the material is light in weight.
- Possibility to choose color and material.
- Availability.
- Easy cutting and processing - everything is done with metal scissors or a file.
- Convenient fastening with adhesive compounds.
- Ensuring slope rigidity.
- Hiding joints between planes.
- Possibility of independent installation work.
Among the disadvantages, we can highlight the features of the materials : for example, plastic and wood will be flammable, and low-quality fittings can be fragile when cutting.
