Snip installation of window structures. Technical recommendations for the installation of window and door blocks made of polyvinyl chloride profiles in the external enclosing structures of residential and public buildings. Preparing the window opening

Carpentry work

Composition of operations and controls

Technical requirements

SNiP 3.03.01-87 clause 5.6

The surfaces of window blocks adjacent to stone and concrete walls, must be antiseptic and protected with waterproofing materials.

The gaps between the frame and the masonry of the external walls must be sealed with thermal insulation materials.

Each vertical block of the box must be fastened in at least two places, the distance between fastenings should not exceed 1 m.

Acceptance of window blocks mounted in openings must be accompanied by checking the tight fit of window frames among themselves, correct installation and fastening of sealing gaskets, glazing of light openings, installation of hardware, platbands with the drawing up of an inspection report for hidden work on fastening frames, their thermal insulation and protective treatment.

Requirements for the quality of materials used

GOST 23344-78. The windows are steel. General technical conditions.

GOST 23166-99. Windows and balcony doors are wooden. General technical conditions.

GOST 25097-2002. Wood-aluminum windows and balcony doors.

General technical conditions.

The types and nominal sizes of windows and their elements must correspond to the customer’s drawings.

The moisture content of the wood parts should be:

Boxes - 12 ± 3%;

Bindings - 9 ± 3%.

The gap in the rebates should be 2 mm.

Windows must have the correct geometric shape. The presence of flaws and defects in wood processing is assessed visually.

Maximum deviations from the nominal dimensions of products and their assembly units must not exceed the data given in the table:

Instructions for carrying out work

SNiP 3.03.01-87 pp. 3.73, 3.74

Window plugs should be secured with screws or steel brushes driven into antiseptic wooden plugs.

Insulation of joints between window blocks and quarters in openings of enclosing structures should be carried out by applying non-hardening mastic to the surface of the quarter before installing the block, or by injecting mastic into the gap between the blocks and enclosing structures after fixing the blocks in the design position.

The junction of metal window sill drains to the frame should also be insulated with non-hardening mastic.

When insulating joints between window units and enclosing structures with openings without a quarter panel, a sealing gasket should be installed before applying mastic.

The completion of work on insulating joints must be recorded in the work log.

Sagging at the ends of tenon joints is not allowed. The flatness tolerance of products and their elements should not exceed 2 mm along the length and diagonally. Window sashes must be hung on 2 hinges. Window blocks must be oiled. The surface of the box adjacent to the wall must be antiseptic or painted.

Each batch of blocks must be accompanied by a quality document.

Dear editors, your magazine publishes materials about various technologies, including the production and installation of windows. I may have looked through it, but I have never seen any material about regulatory documentation. Can you list the documents regulating the production and installation of window structures and tell us about the rules for their operation?

The main regulatory documents for modern window structures are GOSTs and SNiPs. GOSTs regulate technical requirements to the windows. SNiPs contain requirements for the use of windows as finished industrial products in buildings for various purposes. In 1999, the Interstate Scientific and Technical Commission for Standardization, Technical Regulation and Certification in Construction (INTKS) adopted 9 new standards related to the window industry. Fundamental among them is GOST 23166-99 “Window blocks. General technical conditions”, which puts forward requirements for windows at the modern level. According to the definition of this document, “Window is an element of a wall or roof structure designed to communicate interior spaces with the surrounding space, natural lighting of the premises, their ventilation, protection from atmospheric and noise influences, and consisting of a window opening with slopes, a window block, a system for sealing assembly seams, window sill boards, drainage parts and cladding. A window block is a translucent structure designed for natural lighting of a room, its ventilation and protection from atmospheric and noise influences. The window block consists of assembly units: frames and sash elements, built-in ventilation systems, and may include a number additional elements: blinds, shutters, etc.”).

Standards and SNiPs regulating the production and installation of window structures
GOST 11214-86 Wooden windows and balcony doors, with double glazing, for residential and public buildings. Types, design and dimensions
GOST 12506-81 Wooden windows for industrial buildings. Types, design and dimensions
GOST 16289-86 Wooden windows and balcony doors, with triple glazing, for residential and public buildings. Types, design and dimensions
GOST 21519-84 Windows and doors for balconies, showcases and stained glass from aluminum alloys. General technical conditions
GOST 23166-99 Window blocks. General technical conditions
GOST 21519-99 Window blocks from aluminum profiles
GOST 23166-78 Wooden windows and balcony doors. General technical conditions
GOST 23344-78 Steel windows. General technical conditions
GOST 24699-81 Wooden windows and balcony doors with double-glazed windows and glass for residential and public buildings. Types, design and dimensions
GOST 24700-81 Wooden windows and balcony doors with double-glazed windows for residential and public buildings. Types, design and dimensions
GOST 25097-82 Wood-aluminum windows and balcony doors. General technical conditions
GOST 26601-85 Wooden windows and balcony doors for low-rise residential buildings. Types, design and dimensions
GOST 27936-88 Wood-aluminum balcony windows and doors for public buildings. Types and design
GOST 30673-99 “Polyvinyl chloride profiles for window and door blocks. Specifications»
GOST 30674-99 Window blocks from PVC profiles
SanPiN 2.1.2.1002-00 Sanitary and epidemiological requirements for residential buildings and premises.
SNiP 3.04.01-87 Insulating and finishing coatings(window sills, slopes, external drains)

About the rules for installing window structures
Usually, problems with poor-quality installation appear during operation. The assembly seam is the final link of the window structure. The thermal parameters of the structure mainly depend on the quality of installation.
The main requirements for installation seams of a window structure are:
sound and thermal insulation properties;
vapor permeability from the side outer wall;
air and vapor tightness from the room side;
resistance to temperature influences and UV irradiation;
hydro- and/or moisture-proofing properties (depending on the installation location);
resistance to deformation, the ability to maintain long-term elasticity;
compatibility with building materials (adhesion to concrete, brick, wood, etc.)
durability - preservation technical properties and parameters for a long time;
ecological cleanliness and safety.
Failure to comply with one of these points leads to destruction of the assembly seam and significant heat loss (up to 40%). Often, when windows are installed in violation of accepted standards, window joints are filled with polyurethane foam without additional protection. In this case, already in the 2nd or 3rd year of operation, cracks appear at the line where the window joins the slope, condensation forms, which subsequently leads to freezing of the seam with its subsequent destruction. The criteria for a quality seam are the basis of the new Regulatory Act Russian Federation for the installation of windows - GOST 30971 “Installation seams of junctions of window blocks to wall openings.”
Using one material, it is impossible to meet all the requirements for a window installation seam. Therefore, the installation standards for window structures provide for the use of a three-layer insulating system:
vapor barrier (protection of the “internal zone” of the installation seam);
heat and sound insulation layer (“middle zone” of the assembly seam);
vapor-permeable, hydro- or moisture-proof insulation (from the street side).
Using this comprehensive window joint sealing system allows you to avoid many problems.
An example of a comprehensive window joint sealing system in accordance with the requirements of GOST 30971
This wiring diagram window opening ensures high reliability and long-term operation of the assembly seam, significantly reduces and prevents heat losses from the room, creates comfortable conditions and reduces energy costs for heating it.

Technical problems: causes and consequences
Emergence technical problems occurs from improper assembly, installation and operation of window structures.
If the spacers under the glass unit are larger than the supporting ones, this leads to sagging of the sashes.
If the fittings on the frame do not correspond to the locations of the moving pins on the sash, the fittings on the sash are not joined correctly. At best, this will lead to a loose fit of the gaskets. In the worst case, hardware parts on the sash or frame will break. This applies to all types of windows: plastic, wood and aluminum.
An incorrectly selected or incorrectly installed reinforcement in a PVC profile or its absence leads to deflection of the bars of the window block, loose seals, and sagging of the sashes. The same result is caused by the discrepancy between the width and height of the sash and the capabilities of the profile system.
When producing wooden windows from low-quality wood, the tenon joints of the sashes are often glued in violation of the technology. This leads to deformation of the bars of the window block, loose fit of the transom to the frame, breakage of fittings, as well as sagging of the sashes and separation of the bars.
When installing windows by non-professionals, the vertical bars of the frame may deviate from the vertical or bend the vertical bars. This will cause “grinding” of the sash, pressing the sash away from the frame when closing, a loose fit and breakage of the fittings.
Deviation of horizontal bars from the horizontal, bending of horizontal bars, in addition to the above consequences, will lead to the accumulation of rainwater in the drainage gutter and its flow into the room. Deflection and skew of the box will also cause a smaller (than installed) number of fasteners.
To destruction foam insulation, freezing of slopes is caused by the lack of vapor barrier and self-expanding vapor-permeable tape on the insulation between the frame and the wall.
When hit construction waste in the horizontal lock on the top bar of the sash, the horizontal lock and the corner switch break, as well as the fasteners come loose.
The adjusting mechanisms of the lower hinge should not be puttyed or painted over. This will lead to the impossibility of adjusting the fittings and sagging of the sash.
Breakage of parts - corner switch, main lock gear, handle, jamming of fittings occurs from irregular lubrication of moving parts of fittings.
Poor care behind the seal will lead to premature aging of the seal and depressurization of the window structure.

Window care
Window care includes not only repairing and painting, but also maintaining window structures, locking mechanisms and sealing systems.
Preventative work includes:
— lubrication of all moving parts of window fittings;
— checking the sealing gaskets for damage (if necessary, they should be replaced);
- updating, if necessary, the surface of wooden windows using paints, varnishes, etc.
Cleaning of plastic window profiles is carried out using cleaning agents based on surfactants. It is necessary to wash not only the glass, but also the frame. For washing use ordinary liquid detergents, containing no solvents or abrasives.
Seals, like any materials, are subject to natural aging. In order for the seals on windows and doors to retain their performance properties longer, they must be wiped twice a year or more often with silicone grease.
Sealing profiles between sashes and frames and seals of double-glazed windows are not painted. If paint gets on them, it must be removed immediately, because seals may lose their elasticity.
If the window handle is loose, you need to lift the decorative strip located under it and, pulling it slightly towards you, move it out of vertical position to horizontal. Using a screwdriver, tighten the screws located under the trim strip.
Each window has drainage holes to remove moisture that accumulates inside it. They need to be cleaned from time to time. You can find the holes by opening the window sash and looking at bottom part frames with internal and outside.
To open the sash vertically (if the option is installed), you need to turn the handle 180 degrees upward from the closed position and smoothly pull the sash towards you. Top part The sash moves away from the frame by 5-10 cm. The sash should be closed in the reverse order.
Bringing the sash to any other position is possible only after the sash is completely closed (pressed against the frame). When closing the sash, you need to make sure that it is pressed tightly against the frame, and only then turn the handle to fix it. Additional load on the open sash is unacceptable. This can lead to deformation of the hanging fittings.
Plastic windows provide hermetic isolation of the apartment from the street. In order to excess moisture, which is formed in a living room, goes outside, it is recommended to ventilate the room for 10-15 minutes. twice a day, even in winter.
The window sill of a plastic window must have such a width that warm air from the battery can freely rise up along the plane of the window, ensuring normal circular air circulation in the room.
The formation of condensation (moisture) on the glass from the room side can be caused by increased humidity due to poor ventilation, because plastic windows themselves do not contribute to the formation of condensation
The humidity in the apartment should not exceed 40-50%, which corresponds to normal conditions human life activity.
The apartment must be in good order exhaust ventilation. You can check its serviceability using a sheet of paper, leaning it against the grille. With properly functioning ventilation, the draft holds the sheet.
Windows facing south need more frequent maintenance. They must be inspected annually. In this case, it is especially important to check the condition of the lower bar window frame and binding, where more moisture accumulates. Windows facing north, west and east require preventive measures once every 3-5 years.
Having installed wooden windows with double-glazed windows, do not under any circumstances renovate the premises in winter. Condensation falling on double-glazed windows wets the wood and leads to deformation of frames and sashes, as well as damage to the paintwork.
After installing PVC windows, remove them from protective film, otherwise after some time you will have to soak it for a long time and clean it with a solvent. When conducting finishing works Wrap the opening sashes with plastic film so that dust does not get into the locking fittings, especially in the upper part of the sashes.
If the entire list of window installation works was not included in the contract, then you must independently:
install drainage cornices;
trim the foam protruding beyond the plane of the window on the outer and inner surface windows and insulate its free surface;
treat the joint between the window and the perimeter wall from the outside;
veneer or plaster internal slopes.
Failure to comply with these conditions may lead to the destruction of the polyurethane foam and the appearance of moisture on internal slopes and wall surfaces.
It is unacceptable to partially or completely remove polyurethane foam, which acts as insulation, from the gap between the frame and the wall of the building when performing finishing work.
Maintenance of roof windows. The frames of the skylights should be cleared of leaves and debris once or twice a year so that water can drain freely. Lubricate every few years window hinges. Paint wooden parts periodically dormer window. To avoid condensation, it is necessary to ensure free circulation of warm air. To do this, make the lower slope of the window vertical, and the upper slope horizontal, and install a heat source (radiator) under the window. Ventilate the attic space regularly.

Prepared by A. Svatkov

Until 2003, the installation of PVC windows and balcony blocks was not regulated by the state. Window installation specialists were guided by the technology proposed by the manufacturers of these structures. Whether she was wrong or not is difficult to judge. But the number of complaints about freezing, blowing and leaking frames exceeded acceptable limits. In order to eliminate these problems, GOST 3071-2002 was adopted at the beginning of March 2003, and the installation of windows in accordance with GOST became mandatory.

What is installation of a PVC window according to GOST

The introduction of a document regulating the installation of window joints and connections at one time caused a lot of controversy and disagreement. Companies specializing in window installation were unhappy with the upcoming procurement costs additional materials and increased labor costs.

The fact is that the state standard has approved several standards requiring the use in installation of materials that were not previously used, or were used reluctantly. This entailed an increase in the cost of the work of the performers and, accordingly, the consumer. Which, it was believed, could lead to a decrease in demand for window services.

But the worries were in vain. It was consumers who were the first to appreciate the benefits of GOST. Which is not surprising, since the document is entirely focused on improving the operating conditions of window and balcony units. What are these improvements?

1. Installation plastic windows according to GOST with vapor and waterproofing of gaps. The document provided a definition of an assembly seam, indicating the materials required for its construction. Now correct seam should consist of three layers: outer, waterproofing and vapor-permeable.
2. Recommended clearance parameters are indicated.
3. Requirements for surface preparation have been determined.
4. Acceptance rules have been established.
5. The maximum permissible distances between attachment points are indicated. For plastic profile this is 70 mm.
6. A list of actions for testing the quality of structures is given.
7. The maximum service life of the materials used is indicated: at least 20 years.

We didn’t ignore this one either important element window design, like low tide. According to GOST, it is now protected from below with diffusion tape made of polyester. This ensures strong fixation of the metal sheet to the wall and frame. The presence of a tape on the lower ebb plane significantly reduces the noise from raindrops.

Application of standards in practice

Since March 2003, installers began to work in accordance with accepted standards. But for a consumer unfamiliar with the intricacies of this work, the question inevitably arises: what does it mean to install a window according to GOST? Knowing the answers will help you track the correctness of the installation and ensure its quality. The first thing you need to know is that all seams of the window unit should now consist of three parts.

1. The central one is made of polyurethane foam, which has high frost and moisture resistance.
2. The outer one is made of waterproofing tape.
3. The inner one is made of vapor barrier tape.

The basic principle of installation can be explained as follows: inner part The seam must have low thermal conductivity, and the side seams protecting it must have vapor permeability. In this case, if moisture penetrates the polyurethane foam, it will freely escape in the form of steam and will not cause harm to the insulating layer (spray foam).

Advantages of installation

Advantages compared to conventional professional installation, some. But they are all so important that it is unwise to ignore them.

1. Subject to compliance with all Gosstandart standards, freezing and leakage of seams is excluded. Consequently, and window frames.
2. The possibility of mold and mildew formation is excluded.
3. The insulating layer (spray foam) is protected from moisture and will not collapse prematurely. If installed incorrectly, without protective tapes, yellowing of the foam can be observed. Under the influence of moisture, its structure becomes loose and destruction processes begin. Such foam loses its thermal insulation properties with all that it entails: the windows begin to freeze, leak, and are no longer reliable barrier for the wind.
4. The ebb is connected to the wall more tightly by the frame, which provides an additional thermal insulation effect and increases the service life of the window unit.

There is another important advantage of complying with the requirements of Gosstandart. If the consumer remains dissatisfied with the quality of installation and orders an independent examination service, the company that installed this window will, at best, face re-installation. And the worst thing is considerable expenses.

Materials required when installing windows

Among installers of plastic windows, GOST 3071-2012 is called “tape”. This is due to the fact that, in accordance with the requirements of this document, it is necessary to protect the seams with “ribbons” - narrow-width products: vapor barrier, self-expanding and diffusion.

Materials for installing plastic windows according to GOST:

• PSUL tapes (self-expanding sealing);
• GPL (vapor barrier), made of butyl rubber or aluminum foil, For internal protection seams;
• diffusion polyester for external protection.

PSUL tapes are a self-expanding material and are sold in rolls. During installation, it is extremely important to choose the degree of increase in the volume of the tape. This indicator is always indicated on the packaging. So, for gaps 10 mm wide, you need to choose a tape with an expansion range of 30-40 units. The most popular brands of tapes are Profband, PSUL-EUROBAND, Liplent, Robiband.

Polyethylene tape GPL (water vapor barrier) is made on the basis of foam rubber. On one side there is an adhesive base, in the middle there is a vapor-permeable material, on the other side there is a laminated base and inserts made of metallized material (foil). The purpose of these tapes is to reflect heat back into the room and protect the polyurethane foam from moisture. Popular brands: TYTAN Professional, KLEBEBANDER, “Germetic-Abris”.

Diffusion tapes are laid under the tide to protect the seam from moisture on the outside of the window. These materials are also made from butyl rubber, but they have two adhesive bases: on each side. Therefore, the protective material is firmly glued to both the ebb and the opening. Popular brands: HAUSER, Robiband, Ultima, WS.

Installation technology according to GOST

Installation of plastic windows in accordance with GOST 30971-2012, the step-by-step technology of which is proposed, can be done independently.

Step 1: Use a stiff bristle brush or paint brush to sweep away dust and debris.

Step 2. The seams between the bricks are leveled with moisture-resistant putty.

Step 3. Cover the putty with a layer of primer.

Step 4. Open window unit and remove the sash.

Step 5. Remove the stand profile from the bottom of the frame.

Step 6. Glue the PSUL at the junction of the frame and the stand profile.

Step 7. If you are installing a balcony block, remove the connecting profile from the outside of the frame. At the junction with the opening, PSUL tape is glued along the entire perimeter. If you install a window, immediately glue the tape around its perimeter.

Step 8. Take a simple pencil and a tape measure. Mark the attachment points on the PVC profile. In accordance with the requirements of the standard, the distance between these points should not exceed 70 cm. The hole should be 150-180 mm from the corner of the frame.

Step 9. Drill holes. The diameter of the drill must be smaller than the diameter of the bolt or self-tapping screw.

Step 10. Support blocks are installed on the opening, which will be located under the frame.

Step 11. Insert the frame and fix it with self-tapping screws.

Step 12. From the street side, mark the places where the PSUL is attached.

Step 13. Remove the frame and, with a shift of 0.5 cm from the markings, glue the PSUL.

Step 14. Install the starting profile for the slopes on the frame.

Step 15. Cover the frame with GPL tape on the inside.

Step 16. Install the frame and level it. Drill holes in the wall for dowels and perform final fixation.

Step 17. Install the sashes.

Step 18. Fill the seam polyurethane foam.

Step 19. After 15-20 minutes, the GPL tape is aligned along the slopes.

Step 20. GPL is installed under the window sill.

Step 21. Install the window sill.

Step 22. A diffusion tape is installed under the ebb.

Step 23. Attach the ebb.

Installing a window according to GOST, the instructions for which are given above, is a simple task. If you comply with all the requirements of Gosstandart, the window openings will be reliably insulated and sealed.
P.S. And for dessert, I suggest watching a video: Window installation according to GOST

When purchasing a window, we plan that it will be able to serve well for many decades. However, this is only possible if the window is installed correctly. Almost all specialists have their own methods and secrets, but there are also special fixed standards - GOST and SNiP. It is the installation of PVC windows in accordance with GOST that can give the highest quality results.

Regulations

Installation of PVC windows in accordance with GOST will guarantee its long and trouble-free service. Today, all types of work related to this area are regulated by four main standards:

• GOST 30674-99. It contains general information on the issue and basic requirements for windows. There is practically no mention of the installation process itself in this GOST.
• GOST R52749-2007. This standard focuses on the process of installing windows using vapor-permeable, self-expanding sealing tape.
• GOST 30971-2012. This document contains the most detailed information on the issue. It also contains exact requirements for window sizes, device parameters and joint filling materials, methods of fastening structures and similar information. The requirements for regulatory documentation are also described here, some warranty obligations contractor and General requirements to perform the work. This standard was introduced at the beginning of 2014 and replaced the outdated GOST 30971-2002 for window installation.
• SNiP 02/23/2003. The standard sets the parameters for thermal protection of premises. Suffice it to mention that it requires the installation of a 3-chamber double-glazed window for most climatic zones of Russia and a 5-chamber double-glazed window for Siberia.

All of the above regulatory documents are valid, but not mandatory. The only exception was various requirements related to safety in one way or another.. Compliance with GOSTs only helps to achieve highest quality window installations.

Preparing for installation

The installation of plastic windows according to GOST is not much different in general outline from conventional installation of PVC windows. The main differences lie in the nuances and compliance with a number of requirements. The technology for installing plastic windows is as follows:

Measurements

Before starting work, a number of measurements should be taken. The dimensions of the window are set as follows: the width of the window is the width of the window opening, from which twice the width is subtracted installation gap(which will be on both sides), the height is the same. According to GOST, the minimum width of such a gap is 2 cm, and in calculations the figure most often used is 2.5-3 cm.

If we are talking about installing a window in an opening with an external quarter, then all measurements should be made from the outside. The width will be the distance between the quarters, increased by the size of the frame plant per quarter, which ranges from 2.5 to 4 cm. The height is determined in the same way.

Preparatory work

After the windows have been manufactured and delivered to the customer, work should not begin immediately. It is recommended to first prepare the room: clear the space near the window for convenient work, remove unnecessary things and furniture, cover the walls and remaining objects with film or thick fabric. The doors are removed from the frame, and the cavity of the stand profile is filled with heat-insulating foam. It is recommended to do the latter one day before installation.

Particular attention should be paid to the opening itself - it must be cleaned of dirt and dust in advance. If there are noticeable irregularities, they are leveled with putty.

Fastening

GOST stipulates two main types of window fastening. The first is done in the mounting plane - self-tapping screws are attached directly through the frame. This option is used most often, but requires that the door leaves and double-glazed windows be removed from the frame in advance. The advantage of this method is the ease of installation in the opening.

The second option is based on the use of reinforcement mounted in the frame during production. The entire structure can be mounted. It should be noted that its weight will be quite large, so the process will require certain efforts and skills.

Installation work

Installation of plastic windows according to GOST provides one important point: The frame is not installed on a bare brick or similar base. Instead, small wooden blocks impregnated with solutions are placed. They will help in aligning the window.

After this, either a separate frame or the entire structure is placed on them, which depends on the preferred type of fastening. For greater stability and reliability, the supports are left as part of the structure, and wedges are knocked out between the window and the wall on top for fixation. After this, the frame is attached from the sides in the same way. By controlling the process with a level, the frame is leveled, and adjustments are made by adding substrates.

The frame can be fastened, according to GOST, through pre-drilled fasteners. You should start from the bottom, gradually moving higher. To top it off, the structure is additionally checked for horizontalness and all screws and anchors are tightened.

Drain installation and window assembly

Most often, a special groove is provided on the outside of the window into which the drainage system is mounted. GOST states that during installation it must be foamed. If you need to create a more durable structure, the drainage system is additionally secured with screws.

Upon completion, another control check of the entire structure is required: for strength, verticality and horizontality. After this, all that remains is to assemble the window. The assembly process takes place in the reverse order of disassembly: during the process, stops, handles and other accessories are returned to their places.

Filling gaps

GOSTs pay special attention to filling gaps. This procedure is almost always performed using polyurethane foam-based polyurethane foam. This material has been tested over years of work, but still has a number of disadvantages. First of all, its resistance to impact environment and ultraviolet radiation leaves much to be desired. That is why GOST standards require maximum insulation of all seams on all sides - this will avoid destruction of the insulation, which can result in loss of tightness, fogging of windows and the penetration of cold from the street into the house.

The insulation procedure is as follows: glue on the inside around the entire perimeter waterproofing tape for PVC windows. The tape must also have vapor-tight properties. A strip of foil is glued at the bottom, which will subsequently end up under the window sill board. In a similar way they pass through outside. Adhesive strip PSUL (moisture-resistant and vapor-proof). This membrane film can allow steam to pass out.

Both mentioned materials are characterized not only by the fact that they can be found on construction market won't be difficult. They also differ in accessibility, that is, the final price of the work will not increase that much, but the quality will increase significantly. In addition, the structure mounted in this way will last several years longer.

To fill the gap when installing PVC windows according to GOST, the strips are slightly bent and the surface is wetted from the inside. Apply the composition using a pistol. The filler is foam intended for use all year round. According to GOST, ordinary foam can also be used, but only at temperatures up to 30 degrees below zero. Considering the conditions in most regions, such seam insulation in Russia turns out to be of little use.

Window sill installation

At the last stage of the work, the window sill is installed. This process It is considered quite simple - you just need to adjust the size and, if necessary, trim the finished window sill so that it fits perfectly under the frame. According to GOST 30971, it is allowed for the window sill to extend onto the walls at a distance of 5 to 10 cm. Pegs are used to create a level, after which the cavity under the board is sealed with polyurethane foam or mortar. Experts recommend making a slope of 1-2 degrees towards the room during installation.

To decorate the window sill, plastic panels are used, which are attached to the initial profile using a clip. The casing, which wraps around the corner, is secured with self-tapping screws and covered with decorative film on top. All that remains is to put on the end caps and seal the seams with sealant.

Many construction companies interpret GOST and SNiP standards as they want and can simply ignore them, but what are the consequences? incorrect installation, there is no need to say it again. There are two ways out: either carefully monitor the installation process and immediately notice violations, or install windows according to GOST on your own.