For recent years installation skylights has become widespread. This is due to the benefits that people receive when they decide to remodel. attic space and make it a place of comfortable relaxation.

A roof window is a structure installed directly into the roof. As a result of this, the attic turns from a dark and dusty room into a room filled with light, where you can retire from the hustle and bustle and relax.

Installation of roof windows is possible when the roof is tilted from 12 to 90 degrees. Modern manufacturers When manufacturing our products, we took into account such conditions as strong wind, high humidity, possibility of use, regardless of the complexity of the roofing system configuration.

Installing a window requires a lot of responsibility, because compared to ordinary windows, it is exposed to strong influence of precipitation, since it is located on the roof of the house. Therefore, the structures being installed must be strong, airtight and durable.

Price for installing a roof window

We strive to make the cost of window installation as affordable as possible for our customers. We care about quality and guarantee that the structure we install will reliably protect you from rain, snow, wind and low temperatures. From us you can order turnkey work of any complexity!

Installation work	Prices for work in rubles	Units of measurement	Explanations
Installation of a window into a finished opening without roofing	3600	pcs.	Preparing the opening, installing the window, leveling the width and height, installing waterproofing and protective flashing.
Window installation in finished roof covered	5900	pcs.	Preparing the opening, installing the window, leveling the width and height, installing waterproofing and vapor barrier, protective flashing, covering with flexible tiles.
Installation of a window into a roof made of	6000	pcs.	Preparing the opening, installing the window, leveling the width and height, installing waterproofing and vapor barrier, protective flashing, installing metal tiles around the window.
Installation of a roof window in	8500	pcs.
Installation of a roof window in a roof made of	6000	pcs.
Balcony arrangement	15500	pcs.
Removing old windows	1300	pcs.
Covered with anti-mosquito net	1700	pcs.
Electric blinds	3200	pcs.
Electric roller shutters	3400	pcs.
Electric awning	3400	pcs.
Insulating a skylight	1200	pcs.

The products of these companies have slight differences. For example, on Fakro the opening handle is located at the bottom, while on Velux it is at the top. Choose Fakro when you need to place the window opening at the top, and Velux when you need to place the window opening at a lower location.

On average, the price of products from these two manufacturers is the same. Delivery is fast enough without delays.

Dormer windows are a roof element whose installation requires a professional approach. Especially if the roof is already covered roofing material. A small mistake or assumption will lead to leaks during the operation of the roof. Therefore, in this article we will talk about how to correctly install a roof window in a finished metal roof. We will tell you the entire sequence of operations, outline the nuances of the installation process and draw your attention to some subtle points on which the quality of the final result depends, plus we will show popular ones that will allow you to carry out its proper arrangement.

Source promobud.ua

Choosing an installation location

Let’s immediately make a reservation that roof windows are installed only between the rafters roofing structure Houses. In this case, the width of the window product is chosen so that there is a gap of 8-12 cm between the outer ends of the frame and the rafters. If the space between the rafters does not allow installing a window with such gaps, that is, the installation step is small, then it is recommended to install not one big window, but two small ones. Fortunately, the standard size of roof windows is quite wide, in addition, manufacturers offer the service of manufacturing custom windows to the required parameters.

If the roof is built with a large angle of inclination, then it is better to install dormer windows at the bottom of the slope. If the roof is assembled with a flat structure, then in the upper part. On steep roofs, window structures are installed on minimum height from the cornice within 10-12 cm, if the fittings for the attic window are located in the upper part. And at a height of 12-15 cm, if the fittings are located below.

Source budprom.com

Dormer window installation technology

We will assume that the attic has been in use for a long time, that is, it is insulated, covered with roofing material and even finished from the inside. There was not enough light in it, so the owner of the house decided to install a couple of skylights.

First of all, you need to find a place between the two rafter legs. To do this, you will have to remove the skin on one section of the slope from the inside. Usually this is plywood, OSB or chipboard, and plasterboard is often used. All these slab materials are attached to the sheathing or rafters with self-tapping screws, so the latter are simply unscrewed and the sheathing sheet is removed.

Behind the cladding there is a thermal insulation cake, which is covered from the inside with a waterproofing membrane. It is usually attached to the rafter legs, so that it will be clearly visible where the elements are located rafter system, and the opening between them. This is what is needed to install a skylight.

It is very important to trim correctly waterproofing material, making an opening in it. Firstly, a gap is left between the rafter legs and the frame of the attic window, which was mentioned above. There is also a section left along the entire perimeter of the window opening, 20 cm wide. These strips of waterproofing on each side will subsequently close the joint from the inside.

Source dog.gadites.ru.net

A rectangular section of the waterproofing membrane is cut with a knife. The heat-insulating layer is also cut out, plus vapor barrier film, which is located between the insulation and the roofing.

The next stage is cutting the opening in the roofing material. Since this is a metal tile, there is no need to cut it cutting disc installed on an angle grinder. Because high speed when the tool comes into contact with metal, it begins cutting at high temperature. And this is burnout protective layers, with which the roofing material is processed. That is, the cut site becomes open to moisture, which immediately begins to negatively affect the metal. The latter begins to corrode, reducing the service life of the roofing covering.

That's why metal materials To cover roofs, they are cut with metal shears: manual, mechanical or hydraulic. But the difficulty lies in the fact that the metal tiles have already been installed, and it is difficult to get to the edge of each element. Therefore, you will have to make a small cut with a cutting disc, literally 10 cm long. This is enough to insert the scissor blade into the slot. And after this it is necessary to carry out cutting along the perimeter of the opening metal roof. It is recommended to subsequently treat the cut area with the disk with paint.

Source sense-life.com

A small nuance that concerns the sheathing. Surely, one of its elements will fall into the opening area. It will also have to be trimmed, but with one condition: so that the ends of the boards or battens of the sheathing protrude beyond the rafters inward by 20 cm.

On our website you can get acquainted with the most popular designs of houses - two-story and - from construction companies, presented at the exhibition of houses “Low-Rise Country”.

Fastening the mounting beam

Installation of skylights begins with the formation of an opening for the frame. To do this, you need to create a perimeter. There are already two rafters, all that remains is to install the limiting element, also known as the mounting beam, at the top and bottom. To do this, use the lumber from which the rafter legs are made. They are mounted across the rafters, aligned strictly horizontally. The distance between the mounting beams is the height of the attic window.

As soon as the two beams are installed, vapor barrier and waterproofing are attached to them using metal staples and a stapler. The insulation should fit snugly to the outer ends installed elements. That is why all layers of the thermal insulation cake are trimmed with a margin.

Source blues-dev.ru

It should be noted that the attic window in assembled form It is impossible to install into a roof opening. Therefore, it is disassembled, that is, the doors are removed. After which the frame is installed in the opening so that it rests against the mounting beams, to which it is attached with long wood screws. The length of the fastener is equal to the width of the frame profile and the thickness of the beam. The screws are screwed in through the mounting holes that the manufacturer makes in the factory in the frame of the window product.

Source avalon-ltd.ru

The next operation is to insulate the attic window from the rafter side. Since part of the thermal insulation cake remains, it is often used to seal the gap between the frame and the rafters. But, as practice shows, this is not enough, so it is recommended to buy a small piece of insulation that was used on the roof and cut two strips from it. They are placed in the resulting gap, no matter how small it is.

There is another option for installing a roof window frame. A box made of boards 40-50 mm thick is made to fit its dimensions. It is installed at the place where the window opening is formed, secured to two adjacent rafter legs with self-tapping screws or perforated steel profiles. And the frame is installed in this box, secured with self-tapping screws through the mounting holes. The photo below shows just such an option.

Source handmaster.ru

Note! Please note that gaps are sealed with polyurethane foam from a can; you can use a special foam sealant. This option is easier than sticking pieces of foam or plastic into the gap. mineral wool.

Waterproofing a roof window

The windows come with special elements called aprons. These are corner elements made of galvanized steel sheet, painted to protect against moisture, or a special waterproofing material.

Attention! To install skylights, you must use only those aprons that come with the kit or are recommended by the manufacturer of the window structures. Even a small discrepancy, which is hardly noticeable at first glance, can lead to big troubles during the operation of roof windows.

Aprons are installed around the entire perimeter of the frame or box, and are attached to them with self-tapping screws. During installation, the main thing is that the upper apron overlaps the upper edges of the side elements with its edges. And the latter, with their lower edges, overlapped the edges of the lower apron. This is how complete tightness of the joints is achieved.

Source roofvrn.ru

One more thing. With part of the plane of the lower shelves, the apron should be located on the sheathing, covering the thermal insulation layer of the roof at the junction with the attic window. After assembling the roof covering, part of the plane of the aprons will be covered with metal tiles.

Assembly of metal tiles and installation of flashing

If a section of the roof was cut from the inside, then the assembly of metal tiles is reduced only to filling the space between the window and the roof covering. And this is a small strip around the perimeter of the window. To do this, you do not need to purchase new metal tiles. Can be covered with strips of painted galvanized steel sheet. It is better if the sheet is covered with a polymer layer. The main thing is to choose a color that matches the color of the metal tiles. The strips are attached to the sheathing.

If the option of partial disassembly of the roof covering from the outside was used, then it will be necessary to carry out reassembly using standard technology.

And salary installation. This is an element of a dormer window that forms protection at the bottom of the window opening and on the sides. Essentially, this is the same apron that is laid on top of the metal tiles located below and on the sides of the window structure. The flashing is attached to both the sheathing and the frame.

Source delbor.ru

Installation of sash and slopes

And two last stage, which ends the process of installing a roof window in a finished roof. The method of installing the sash is the opposite of removing it.

Video description

The video shows how to properly disassemble a roof window and the process of removing the sash:

But as for the slopes, here large number options. But there are two important points in this event:

Upper slope must be installed horizontally, A lower - vertically. This is the only way to achieve effective blowing of double-glazed windows. If this is not taken into account, condensation will collect on the glass.

Slopes necessary atkeep warm. For this, you can use any thermal insulation material. But foam sealants are better. It is better not to use polyurethane foam.

Video description

In the video, the master explains how to properly install a roof window in a roof covered with metal tiles:

Conclusion on the topic

Installation of a roof window in soft roof roofing, covered with metal tiles, corrugated sheets or any other roofing material, is carried out using the same technology. Of course, each manufacturer has its own subtleties and nuances, but in general the sequence of operations is the same. But we must remember that a roof window is a rather complex mechanism, therefore, in order for yours to be correctly implemented, it is better to trust the installation to professionals.

In a private house, the attic is another room. To turn the attic space into a full-fledged living space, you need to install windows. It is better to do this immediately at the stage of roof construction.

Installing a roof window in a finished soft roof is more difficult: for installation you will have to cut out large plot covering, backing plywood, roofing pie and even rafters, if they are installed at small intervals.

The technology for installing a roof window in a soft roof depends primarily on the design of the windows themselves. Manufacturers have different installation requirements. For example, Velux models can only be attached to the rafters, while FAKRO and ROTO are often attached to the sheathing.

Let's consider general rules installation

Scheme and choice of model for installing a roof window in a soft roof

When choosing a model and determining required quantity windows are based on the calculation of 1 square meter of translucent structure per ten square meters of attic area. It is recommended to draw up a window placement plan in advance.

• for steep roofs, the window is installed so that its lower cut is located at a height of one to 1.4 meters;

• if the slope is within twenty degrees, you can place the window higher - the illumination will be better;

• The minimum installation height is 80 centimeters, the maximum is ninety meters.

The height is also affected by the design of the block itself. More precisely, the location of the handle:

• if the handle is on top, the window is placed no more than 1.1 m from the floor;
• if in the middle - 1.2-1.4 meters;
• When the handle is in the lower position, if there are children in the house, you cannot place the window low. Not less than 1.3 meters.

The window is installed between the rafter legs. The width of the model is selected so that there is about two centimeters between the frame and the rafters on both sides. Insulation will be located around the perimeter of the frame; the width of the gaps between the frame and the rafters depends on its thickness.

Our works

Installation procedure

1. If the roof is already ready, you need to cut an opening in it for the window frame. The opening is made along the cut of the rafters: between the edge and the frame the same gap is left as between the frame and the rafters. This is how all materials are cut with the exception of the waterproofing layer: you need to leave an extra 20-25 centimeters of film for overlap.

2. If the ceiling is lined with plasterboard or clapboard from the inside, it will be difficult to determine the location of the opening. It is recommended to have a rafter layout diagram on hand, otherwise you will have to dismantle some of the panels. Before cutting out the entire opening in the drywall along the contour, you should make several through holes to relieve stress.

3. Transverse bars are nailed to the rafters at the top and bottom of the opening. Their installation is required if installing a window requires removing a section of rafters. If not, it is still recommended to nail the bars: this will hold the window stronger.

4. A drainage tube/gutter is placed on top of the finished opening at a slight slope to remove condensate and secured to the sheathing. The length of the gutter is equal to the width of the opening. The slope is necessary so that the water does not stagnate, but spontaneously flows into the ventilation gap of the roof.

5. Remove the sash from the window. If the window is blind, remove the glass unit.

6. Attach the box to the rafters and cross beams with angle brackets. One shelf is screwed with self-tapping screws to wooden element, the second - to the window frame. The lower edge is fastened tightly; the screws on the upper edge are not fully tightened.

7. Adjust the structure according to the level. Serious distortions are corrected plastic corners. It is recommended to return the sash to ensure proper fit. After adjustment, the sash is removed again and the fasteners are tightened.

8. Place waterproofing and insulation around the window. The edges of the waterproofing apron are placed, on one side, under the waterproofing layer of the roof itself, and on the other, under the condensate gutter. The edges of the roof waterproofing are fixed to the frame. Fastening with galvanized nails.

9. Close assembly seams flashing strips from the window kit. Place the bottom part first, then the rest. All strips must be placed under an elastic seal.

10. From the inside, the cracks along the perimeter of the frame are sealed with heat-insulating or sealing material, a vapor barrier is laid and the slopes are treated. The lower slope should be horizontal, the upper slope should be vertical.

11. Return the sash to its place.

You can slightly change the installation sequence: first sheathe the opening thermal insulation material, and then install the frame. The insulation strips are attached to the rafters and beams with a stapler.

Installing roof windows on a soft roof is an energy-intensive task and requires high precision.

Poor installation of an inclined window on the roof will result in the attic being constantly flooded with rain, and condensation, rain and snow moisture will begin to accumulate under the roofing. All this will accelerate the wear and tear of the roof and the entire house.

Contact us at STM-Stroy: our experience roofing works For more than fifteen years, we will install roof windows for you quickly, inexpensively and in full compliance with technology.

A roof window is a very important part of the roof structure. Incorrect installation or weak waterproofing will negate all efforts to build a roof, jeopardizing a comfortable existence not only in attic floor, but also throughout the house.

That is why beginners take on self-installation Skylights are not recommended; it is better to contact specialists. For those who already have experience construction work, if you follow the instructions and the rules outlined below, this task will be completely within your power.

Tool set

Before starting work, the home craftsman should stock up on the following tools and materials:

• Hammer
• Plumb
• nail puller
• Hacksaw
• Drill
• Screwdriver
• Construction stapler
• Level
• Marker
• Nails
• Self-tapping screws
• Edged board, the cross-section of which corresponds to the cross-section rafter leg

Part of the tools for installing metal roof windows

Installation location and window dimensions

The maximum permissible width of a roof window should be 80 - 120 mm less than the opening between the rafters. If the rafter legs are located with a small step, install two windows in adjacent niches or through one.

The installation height of the window is determined based on the method of opening it and the angle of inclination of the roof. In steep roofs it is better to place it in the lower part, in flat roofs - in the upper part. Windows with lower fittings are installed at a height of 1200 - 1300 mm, with upper ones - at a height of 1000 - 1100 mm.

Work order

Preparing the opening

Installation of a roof window should begin after installation roofing pie, but before it is executed interior decoration premises.

First of all, the boundaries of the future opening should be marked with a marker on waterproofing film. In this case, at least 40 mm should be retreated from each rafter leg, and if possible - 60 mm or more.

When the boundaries of the installation are drawn, 200 mm are retreated from them and only now a cutout is made. This leaves a 20cm margin on each side of the hole. It should be bent inside the room.

Securing the mounting beam

The mounting beam is made from the same board from which the roof rafters are made. It is attached between the rafters under the window opening, and the gap between the beam and the sheathing should be 80 - 100 mm.

The mounting beam must occupy a strictly horizontal position, so the correct installation is controlled using a building level.

After securing the beam to it using a stapler, nail the bottom edge waterproofing film.

Frame installation

Before you begin installing the frame, the side edges of the waterproofing film should be pulled out, and its upper edge should be stapled to the sheathing above the opening.

The frame is freed from the sash and flashing, after which a piece of mineral wool insulation is nailed to its upper part with a stapler. A fragment of heat insulator intended for insulating the lower part of the window must be secured to the mounting beam. Now the frame can be installed in the opening, following the instructions provided by the manufacturer.

Tip: When installing the frame, leave the top brackets slightly loose. In the future, this will make it possible to correct its position.

After installing the frame, the insulation attached to the mounting beam must be pressed tightly against the opening and secured with a stapler.

Sash installation

The procedure for installing and dismantling a window sash is described in detail in the instructions from the manufacturer.

After installing the sash in place, check how well it fits to the frame. Detected distortions are eliminated by adjusting the position of the frame, after which all brackets are securely fixed.

At the final stage, insulation is laid and secured on both sides of the opening, and the side fragments of waterproofing are nailed to the frame, removing excess material.

External waterproofing

At the top of the window opening, the sheathing is removed so that a drainage gutter can be installed in the free space. Pre-cut roof waterproofing is placed under it. If everything is done correctly, then in rainy weather the water from the section of the roof located above the opening will flow from the waterproofing into the gutter without getting onto the window.

Tip: use only those accessories that are designed specifically for your window model. Even minor inconsistencies, unnoticeable at first glance, can lead to leaks in the future.

The apron is attached to the frame with a stapler, then it is brought inside the attic and attached in the same way to the rafters, mounting beam and sheathing. The top edge of the waterproofing apron should be under the drainage gutter.

The finishing touch is to restore the roofing at the bottom of the window.

Salary setting

Installation of the flashing begins with the installation of the lower corrugated apron, which is fastened around after that. Then the same apron is installed on top and only then on the sides. When everything is ready, the covers are attached to the window. All flashing elements should be attached to the sheathing and frame.

This operation largely depends on the design of the window and frame, so its implementation should be coordinated as closely as possible with the manufacturer’s instructions.

Tip: to seal the gaps between the frame and the opening, use only special roofing sealants. Regular polyurethane foam quickly deteriorates under the influence of UV radiation, thereby losing its waterproofing qualities.

Installation of slopes

From the correct installation of slopes inside attic room circulation depends warm air in the window area.

The lower slope should be positioned vertically, that is, perpendicular to the floor. The top one is horizontal.

If the technology is violated, the window will not be blown with a stream of warm air, which will lead to the formation of condensation on the glass. After installation, the slopes should be properly insulated.

Advice: insulation of slopes should be quite effective; it is best to use a good layer of mineral wool for this. Novice craftsmen often underestimate this point, preferring to make do with materials such as penofol. This can also trigger the process of moisture condensation on the surface of the slopes.

As you can see, installing a roof window does not involve any highly complex operations. The main rules remain the same: thoroughness, accuracy, lack of haste and compliance with all points of the instructions. Stick to them, and your attic will always have enough light, warmth, and therefore comfort.

After installing the roof window, you can move on to installing other elements. Mandatory. Because it is a significant element of the roof that provides roof ventilation.

Next, it is necessary to install snow guards on the metal tiles. The installation process is described. Snow guards on the roof ensure safe snow removal. They are also necessary to prevent the roof from deforming under the mass of icy snow.

Video about installing a roof window in metal tiles

Two videos. The first shows the installation of a window in a finished roof, the second shows installation instructions step by step.

Specifics of installing a roof window may seem complex and accessible only to experienced professionals. But that's not true. Like the construction of the attic itself, this operation is also not unique and requires special construction skills. You can correctly install a roof window on a roof with flexible tiles yourself, even alone.

So that everything works out correctly and quickly, the entire sequence of operations and nuances of the process can be viewed in the instructions - in the installation video instructions window openings in the TECHNONICOL roofing and in the instructions of the manufacturers of roof windows.

Work begins indoors. Mark (approximately) the center of the future window. Then a small hatch with dimensions of about 20 x 20 cm is cut out in the cladding. It is needed to accurately determine the location of the rafters. Next, we more accurately mark the outline of the future window opening.

Dormer windows are a factory product with standard sizes. For example, for rafters with a pitch of 60 cm, a window from one of the famous manufacturers with dimensions of 55 x 68 cm. It is worth noting that the roof window is most optimally installed on a roof with insulation and a slope of at least 15 degrees.

It is important to consider the location of the window itself: the top of the window should be located at a height of 185 to 220 cm from the floor, and the distance from the bottom of the window to the floor is recommended in the range of 90−140 cm.

According to the applied markings A window opening is cut out in the ceiling cladding, which should be about 4-6 cm wider than the window itself. Insulation will be placed in this gap.

Next you need to cut out the vapor barrier and remove the insulation from the structure. The diffusion membrane located on top of the insulation is cut crosswise and wrapped inside the room. After which the sheathing is cut out and trimmed flexible tiles. It is more convenient to do this from outside the roof. The membrane is attached to the sheathing with a construction stapler, and its excess is cut off. By the way, before doing this, you need to make sure that there is sheathing around the perimeter of the opening. Otherwise, it will need to be done additionally, since the window frame will subsequently rest on the sheathing.

The first stage has been completed– the opening is ready for window installation. Manufacturers of roof windows have taken care of the ease of installation of their products, providing the kit with all the accompanying materials and details: a thermal insulation contour on a rigid frame, waterproofing aprons, seals and, most importantly, instructions. So, it all starts with the insulation loop, which is assembled according to the window manufacturer’s instructions.

Further work will be required on the roof. Here, in order to tightly connect the roof to the window frame, it is necessary to remove part of the tiles around the window. There should be 5 cm from the edge of the tile to the window frame. Next, the contour of the window is installed in the opening so that the contour goes under the tile.

After unpacking the structure it is necessary to separate the turning frame and the window frame. They are installed one by one.

Mounting angles are attached to the window frame. They have their own standard mounting points, pre-marked on the frame.

Next, the box is placed in the insulation circuit. Fasteners (mounting angles) are located on the outside of the roof. From the inside, the gap between the rafters and the frame should be within 2-3 cm - for laying slope insulation.

After this operation, the window is leveled in the lower part, the box is adjusted from the sides and then the entire structure is fixed with screws to the roof. Next, you can insert a rotating sash, followed by adjustment of the frame and the sash itself.

It is necessary to provide a gap between the tiles and the window frame. It should be approximately 5 cm. Therefore, we cut off the excess tiles. And to ensure the tightness of the window, a special waterproofing apron is used, which is capable of releasing moisture from inside the structure and keeping it out from the outside. It comes included and is tailored to fit the window. An apron is placed around window frame. It is fixed using a self-adhesive strip located on the back side. The edges of the apron go under the tiles. Moreover, its upper part is additionally placed under the lining carpet, providing reliable protection from leaks.

The next stage is the installation of a gutter system, or window frame. It is necessary for the effective drainage of water and precipitation from the structure and ensures a tight connection between the window and the roofing. The flashing is assembled in the following sequence: first, the lower element is mounted, then the side parts and then the upper element. To install the lower element of the flashing, clamps are nailed on top of the apron (included in the kit). The bottom of the gutter snaps onto them. The cover itself is attached to the frame. Here, along the perimeter of the window, a “snow+” seal is mounted on the upper edge of the gutter for additional sealing of the window in winter. Next, the entire structure of the gutter and seal is pressed against the top with a lining.

Special linings isolate the junction flashing elements to the window frame and protect its wooden parts from moisture and negative influences sun rays. Next, the upper part of the flashing is mounted. To prevent the outer edge of the flashing from puffing up under the tiles, it is pressed using clamps.

The final stage of work on the outside of the window– using “FIXER” mastic. Afterwards, all that remains is to install the insulation of the slopes from the inside and restore the vapor barrier film.

Don't forget about safety precautions when carrying out work outside the roof. All processes must be performed with a special safety system for working at height.