When arranging a roof, it is important not only to choose the right roofing material, but also additional elements that allow you to design roof joints, edges and kinks, and organize proper drainage of rain and snow flows. It is thanks to these additional products that the functionality of the roof significantly increases. They make the roof complete, individual, protect it from any negative influence from the outside, give it solidity and attractiveness. There are a lot of additional elements used, one of them is a cornice strip for a galvanized metal profiled sheet.
Purpose of the cornice additional element
The roofing product is indispensable for protecting the roof from the penetration of various insects and precipitation. Without this element, the roof looks unfinished and defective. Initially, the lathing is carried out, and then comes the turn of installation. cornice strip, whose functions are concentrated in the following:
- During heavy rainfalls or heavy melting of snow masses, the frontal board may become wet. To prevent this from happening, this element is fairly well protected from moisture damage;
- The roof truss system and the under-roof space also need serious protection from getting wet and moisture accumulation, which is why an additional eaves element is needed;
- diverts water flow into the gutter from the slopes roofing;
- reliably hides waterproofing, unattractive places rafter system, giving the roof an attractive appearance. Therefore, the eaves strip is also a roofing accessory.
According to their geometric design, additional cornice elements are divided into straight and figured. Products of the first type are ordinary planks made in the form of a corner. Elements of the second type, as a rule, are equipped with several stiffening ribs, which makes it possible to strengthen the edging of the roof, as well as increase its decorative effect.
Additional cornice products are represented by narrow sheets of metal having one or several longitudinal ribs. Thanks to the eaves strips for profiled sheets, it is possible to create a reinforced roof overhang that is sufficiently protected and perfectly resistant to corrosion. These products are fastened to the sheathing outlets.
Installation of additional eaves for corrugated sheets
The planks are made from similar materials as corrugated sheets and have the most similar color scheme, anti-corrosion coating. They are fastened using self-tapping screws. They also have this color shade, which most closely matches the roofing and lath. The products are also coated with anti-corrosion coating and are ready for long-term use.
Roofers never forget that they work at height, so they prepare the necessary equipment, bags for tools, and take all necessary safety precautions in advance. To install the additional strip, they will need a hammer, a construction level, a screwdriver, metal scissors, a tape measure with a pencil, and galvanized self-tapping screws.
Before installing the additional cornice element, it is necessary to install drainage system. When everything is ready, the planks are attached to the front board. They are always mounted with an overlap. It is not allowed to place the products end-to-end, and there should not be even the slightest distance between them. This product ensures that the roof turns out to be very beautiful, as well as durable, reliably protected from any adverse external influences. More details - .
When constructing roofs made of corrugated sheets, a huge role is played by the so-called additional elements, which occupy a negligibly small place in the total roof area (up to 3% in the most complex roofs). But the service life of the roof as a whole largely depends on them.
It is clear that not all of the additional profiles presented in the photo affect the service life of the roof, but the eaves and wind strips discussed in this article, along with the ridge, are the main additional elements of any roof made of corrugated sheets.
Why these? Yes, because most roofs made of professional metal have the simplest configuration, because... using it for complex broken roofs, taking into account the large amount of waste in these cases, is at least unprofitable, and taking into account all the components of the characteristics and cost of a particular type of coating, it is hardly justified. Of course, there are exceptions, but they rather only confirm the rule. 
Functions of wind and cornice strips, materials
All roofs, in most cases, are sheathed along the contour with front and end boards. This is done both to form a single roofing pie, and to prevent moisture from getting under the finishing roof covering, wind blowing, which can tear it off the sheathing during large gusts, and even preventing birds from nesting and the colonization of the under-roof space by animals such as martens.
The wind and cornice strips, in turn, protect these boards from moisture flowing under them and water drainage on their surfaces, which radically increases their service life. Sometimes, along with the windshield and cornice, they also install the so-called frontal strip so that the board is completely protected by metal. 
A wind strip for corrugated sheeting is often also called an end strip, based on the location where it is attached to the roof. The eaves and wind strips have a slightly different configuration from each other, but are usually made of the same material as the roof deck. Most manufacturers initially have standard additional elements in their product range, at least for the main colors roofing sheets. Or if you choose a custom color, they can custom make them for you. The same applies to cases with non-standard sizes these planks.
Also most large construction stores sell bent metal profile basic color range, which can be used as wind and cornice strips.
Most types of corrugated sheeting for roofs and additional elements for them are made of galvanized metal and covered with a polyester or plastisol coating. Sometimes with the addition of basalt chips or stone powder.
Installation of cornice strips
Installation of the eaves strip in most cases is carried out after installing the drainage system, if provided, and before installation roofing material. This is done in this sequence because ideally the bottom edge of the eaves strip should be pressed against inner surface drainage system gutters. If this is not the case, then in some cases a separate drip is installed, the upper edge of which must be covered by a cornice strip. The standard dimensions of the cornice strip 100 x 69 x 2000 mm are not always suitable for solving this problem, so they are often made to individual sizes.
Mandatory when metal roofing the hydrobarrier film on the outer board, to which the cornice strip is attached, is removed from under the sheathing and laid on top of the strip. Thus, the moisture condensed under the surface of the corrugated sheet will flow down the eaves strip directly into the gutter of the drainage system, or will fall off the drip line in its absence and is guaranteed not to fall on wooden structures roofs.
The cornice strip should be secured either with nails or self-tapping screws with a cone-shaped head, pressing them down so that the top edge is flush with the metal of the strip. The overlap when joining two elements should be at least 50 mm.
Installing a wind strip for corrugated sheets
The wind bar is one of the last to be mounted on the roof. Later, only ridge profiles are installed. The plank must completely overlap the two waves of the roof covering profile and either completely cover the end board, or have a capino on the lower edge to drain water from the surface of the board. Her standard sizes have a length of 2000 mm, and dimensions top shelf can be 135 or 145 mm, depending on the profile roofing sheet and an end shelf from 800 to 100 mm with a capinosal of 15 - 20 mm. The top shelf can also have a slight bend of 15 - 20 mm with rolling.
The element is not difficult to manufacture and can be bent at almost any sheet bending machine, in the same place where ebbs are bent; any company that installs windows will tell you the addresses.
The plank is fastened in two planes using the same self-tapping screws with a rubber (or better yet, polyurethane) washer that were used when installing the entire roof with a pitch of 300 - 500 mm. In the plane of the roof, the plank is screwed through the second wave from the edge. It is advisable to attach to the end board center line shelf adjacent to it, although the latter is purely for aesthetic reasons. The overlap of two elements must also be made at least 50 mm, and it is imperative that the element located above covers the one located below. Installing fasteners at the junction between two metals is desirable. Upper joint of end strips gable roof covered with a ridge element. Sometimes, for greater joint tightness, they use double sided tape or other sealing elements.
Often, if the wind and cornice strips meet at corners at different angles, the gap between them is closed either by cutting out and bending one of them, or by inserting an easy-to-manufacture corner element from the same metal. Make sure that there are scraps of it when ordering all the material and additional elements for the roof. 
Sometimes used as end strips plastic corners appropriate sizes, but personally I doubt the feasibility of this.
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Any, even the most simple roof, involves the use of special elements that form its joints, kinks, junction points of slopes and areas adjacent to walls and gables.
- She protects against getting wet front board cornice during precipitation;
- Prevents moisture from entering under the roof and in the interior;
- Gives completeness attractive appearance the entire structure;
Sectional diagram
Design and principle of operation
Cornice strips form a metal protective edge with anti-corrosion coating, protecting the frontal or cornice boards from moisture getting on it.
Looking at the roof first, it may seem that this longitudinal element is brought under the edges of the roofing. In fact, its installation is carried out even before laying or. Only after it has been strengthened on the frontal or cornice board will it be possible to begin laying facing materials.
Usually, made from the same material as the cladding, it is painted in a color similar to it and protects not only the eaves or front board from getting wet, but also prevents water from entering the under-roof space itself.
Cornice device
Drip rail and cornice strip - what are the differences?
Many people mistakenly believe that the cornice strip and drip 
represent the same thing.
In reality, they are two different bars that perform two different functions.
- The cornice strip protects the front board of the cornice from getting wet, and the drip line is used to remove water, namely condensation from the waterproofing, away from essential elements roof structures into the gutter or directly onto the ground. It is especially important in autumn and spring when high humidity air and frequent rains;
- protects the facade of the house from the formation of fungus, mold and leaching construction mixture from brickwork, as well as from wood rotting, while the eaves strip protects the roof itself;
- The drip cap strengthens the roof and protects it from air masses, and the cornice strip protects it from aggressive external influences;
Both additional elements can be installed together or separately, but they cannot replace each other.
Cornice strip: dimensions
The strips protecting the roof are made of galvanized steel profiles. Manufacturers use the same thin sheets of steel for their production, the thickness of which varies from 0.4 to 0.5 mm, as well as for the production of metal tiles.
They are covered with the same polymer materials, for example, polyester or plastisol, which, in turn, coats metal tiles. When using composite metal tiles, the planks are covered with basalt chips. The approximate length of the element is vaped within 50-60 cm.
Because the plank is, as it were, “planted” on the base of the roof, the required footage is collected from its individual parts.
Installation of cornice strips
Installation of additional elements attached to the cornice, carried out on an already prepared frontal board, which is nailed with galvanized steel nails to the end parts of the rafter system. If the front board is level, attaching the plank will be much easier.
Installation of cornice strips is carried out in the following order:
- The frontal area of the roof base is hemmed with tongue and groove boards. You can use siding or corrugated sheets for these purposes;
- Then on the wall of the house support beam is installed, serving as a safety support when hemming the eaves overhang;
- Right before the event finishing works cornice the drainage system is equipped with brackets or hooks by attaching them to rafter legs or to the cornice board. In them, further, the gutters of the drainage system will be folded. If the distance between the rafters is the same, it is better to attach hooks to them;
- Lower the first hook or bracket below the continuation of the slope line by 2 cm in order to ensure that water from the roof is guaranteed to enter the gutter.
- Next comes the turn of fixing the cornice strip over the gutter fastenings to the front board. It is nailed down with screw spacing of at least 30-35 cm in a checkerboard pattern.
- The planks cannot be attached end-to-end or with gaps between them. Each subsequent plank must overlap, namely, go about 1 cm onto the already fixed element. The last bar is adjusted to size by a neat cut.
- Having completed the installation, you can begin cladding the roof or. And after finishing laying the roofing materials, you should start installing other additional roof elements.
Photo of installation of cornice strips
Attaching the cornice
Additional elements
We invite you to familiarize yourself with other types of additional roofing elements:
- used as a decorative component to mask the joints of roof cladding with corrugated sheeting. They protect ventilation gap under-roof space and joints from seepage and water retention;
- End strip protects sheets of metal tiles or corrugated sheets, covering them at the ends, from strong wind, penetration of water under the roof in the area where the roof adjoins the gables, and also prevents insects or birds from entering under the roof;
- Wall strip used in areas adjacent to walls or other vertical planes.
- Wall straight protects the joint without grooves with additional sealing;
- Wall bottom is attached under facing material, metal tiles or corrugated sheets in the area of attachment to a wall or other surface located vertically. At one edge of the additional element there is a fold that prevents the drainage water from overflowing over the edge.
- directs water flowing from the roof, mainly performing decorative role masking the internal areas of the joint of sheets of roofing material.
- Lower endova- an element used in areas where negative angles meet. It protects the junction of sheets of metal tiles or corrugated sheets from water seeping under the roof;
- Low tides- an element designed to protect the joints of the window and the walls of the building from water penetration;
- used on various roof fractures. They protect the joint from the penetration of water under the roof space;
- protect against unexpected avalanche-like snow masses, as well as unintentional falls components roofs;
- Internal and external corners — decorative elements, used to mask the joints of internal and external corners facing material roofs;
- Ridge aerator- a product used to get rid of excess moisture in the area under the roof;
- Ridge cap- an important component that prevents dirt and moisture from getting under the roof.
Additional elements
The work of all additional roofing elements together is aimed at maintaining the integrity of the roof and increasing its service life. The absence of any element can, although imperceptibly, have an extremely negative impact on the design of the house as a whole.
Useful video
Do-it-yourself installation of the eaves strip in the video below:
Metal eaves strip is one of the important components of the roof, which is made from steel sheets up to 2 meters long and attached to the edge of the eaves (ramp). Its main purpose is to provide a holistic view of the entire roof and its reliable protection from damage.
Despite small area installation of the strip, it performs a number of important functions:
- Protection of the frontal board of the cornice from exposure to precipitation and moisture ingress interior space roofs (under tile sheets). Thus, the floor materials are maintained in a dry state: seals, insulation materials, etc.
- The direction of water flows after rain and melting snow directly into the drainage system along the bend of several sides of the eaves plank, excluding getting into the rear, that is, the front eaves board of the roof. That is why this bar is additionally called a dropper.
Features of the design of metal cornice strips
This element is usually made in a standard design, which differs only in the angle at which its shelf is located. The exact dimensions of the cornice strip, including the width of its vertical plane, directly depend on the design of the rafter system.
From us you can buy eaves strips for roofing made from galvanized corrugated sheets, onto which protective layer polyester in the desired color. Such products are not subject to the destructive effects of corrosion and precipitation, and they are also quite lightweight and durable, which simplifies the installation process.
The length of this additional element is usually from 1.5 to 2.5 meters, and the width of the fastening shelves is from 15 to 30 cm. The thickness of the sheets is from 0.4 to 0.5 mm. But if necessary, you can increase or decrease the edges of the planks. We are ready to produce additional elements to order according to the customer’s dimensions. The cost of the cornice strip depends on the selected parameters.
Such steel elements have a number of advantages:
- high degree of rigidity and strength;
- resistance to harmful effects weather conditions and temperature changes;
- the average service life of steel slats is from 15 to 25 years, that is, approximately the same as that of metal roofing tiles;
- attractive appearance of the planks and the roof as a whole;
- eaves strip for metal tiles is sold at an affordable price.
The importance of using curtain rods
Installing a roof without eaves and windshields leads to exposure to rafter frame moisture and wind and, as a result, accelerated wear of roofing materials. Despite the fact that additional elements in the roof make up 2–5% of the total area, they perform important functions:
- 01
Protective.
The main task of the eaves strip is to prevent moisture from precipitation and cold wind from getting under the roofing material. Because of high humidity the wooden frame can become damp and rot, which reduces the lifespan of the roof. Also in attic room can blow in cold air, which increases the cost of heating the building.
- 02
Decorative.
Installation of planks allows you to aesthetically and neatly sheathe the front board and thus hide the “filling” of the rafter system from view. At the same time, the additional elements are matched to match the color of the metal tiles, so outwardly the slopes have a holistic and harmonious appearance.
How to install a metal curtain rod
The planks are mounted on the eaves board before covering with roofing material. Before installing the slats, brackets for the gutter are driven into the eaves. After that, the cornice strip is overlapped by 10–15 cm and secured to the cornice board using self-tapping screws or nails in increments of 30–50 cm. It is important that the joints between the strips are airtight and do not allow water to pass through. To do this, they need to be treated with a silicone-based sealant.
A properly designed roof is the key to protecting the upper part of the facade from winds and rain. An important role in this matter is played by the wind bar. It is this that limits the intensity of exposure to winds and prevents the penetration of cold air, rain and snow under the cladding and sheathing. But the special role of this additional element is to decorate the roof and its ideal combination with the facade cladding.
The service life of a roof directly depends on how reliably it is protected side cuts(ends). This task is performed by long and fairly narrow slats: wind bars. The cross-section of these elements can be different and depends on the type of corrugated sheet, the width and height of its waves. The main differences between the planks different types consist in the presence of bends of various configurations intended for attaching the additional element to the roof.
But in any case, the wind strip is a panel curved at a right angle. The standard length of the product is 2 m. The width of the side panels varies from 40x60 mm to 90x300 mm. Narrow strips are used for roof cladding made of relatively flat corrugated sheets, with a minimum depth of waves.
Types of wind strips for metal tiles and corrugated sheets
The wind strip can be called differently: end, front or pediment. These shaped elements may also be called not “slats”, but “slats” or “boards”. Some manufacturers of corrugated sheets may have one name for components, while others may have another name. But the functions and sizes of the products are always the same. The color scheme is also identical. The most popular colors are: blue, cherry, brown, green. The wind strip should be painted to match the tone of the main roofing material: corrugated sheeting or metal tiles.
Types of wind slats coatings
Additional elements for roof cladding are made from the same material as corrugated sheeting: galvanized metal. The protective coating of the components is also identical. It can be of the following types:
- polyester (consisting of organic-based polymers);
- pural;
- plastisol;
- containing polyvinyl fluorides and acrylic resins: PVDF.
The latter is the most reliable, as it is resistant to mechanical impact, dirt-repellent ability, resistance to ultraviolet radiation. It is recommended to purchase additional elements from the same manufacturer as the main material. In this case, guaranteed perfect combination colors and accuracy of connections of all components.
Types of wind strips for corrugated sheets
Due to the variety of names of this product and the many companies involved in its production, end rails are presented on the market different forms and sizes. For example, wind slats of the RAL brand have a rectangular cross-section and curves at the ends, while the Aquasystem brand is relatively flat.
Manufacturers of roofing materials offer their own systems for lining roof overhangs, so the shapes of shaped elements can be different. For roofs made of corrugated sheets, end strips are most often chosen rectangular section. One of the side panels of these products is curved to drain water from the walls of the house. The second has a more complex bend, which serves to attach the strip to the roofing material. One edge of this product must be laid directly on the corrugated sheet, the second must cover the end cut of the roof slope and the outer cut of the soffits.
There are end strips, the shape of which forms a right angle, without any protrusions or bends. Such products are most convenient for covering the ends of roofs made of relatively flat corrugated sheets.
Technical characteristics of wind strips for corrugated sheets
Installation of the wind strip
Installation of wind bars is simple. Even a non-professional can cope with this task. But despite the ease of the process, you need to know the rules for installing components for corrugated sheets.
Before installing the plank, you must remove the thin transparent film from it. If this is not done, protective coating will begin to peel off on its own under the influence of sun, wind and moisture. This will lead to the appearance of unsightly waves and bubbles that will spoil the appearance of the facade.
Selection of fasteners and rules for their use
When covering roof overhangs, observe important rule: top part The wind strips in contact with the corrugated sheets are secured with ridge screws, and the bottom ones with roofing screws. What is the difference between these fasteners (hardware)?
To install corrugated sheets, self-tapping screws with EPDM gasket are used. These are self-tapping screws equipped with a hex head, painted in the color of the base roofing material.
There are three main types of such screws.
- For fastening to a wooden base.
- For installation of corrugated sheeting, the operation of which will be carried out in conditions characterized by intense wind loads (roofing).
- For installation of ridge additional elements (ridge).
The latter are longer and thinner, which allows you to securely fasten wind bar, despite the wave height of the corrugated boards and the thickness of the sheathing boards. Therefore, the top panel of the end rails is secured with ridge screws. The head of any of the listed fastening hardware must be painted the same color as the corrugated sheet. In this case, the attachment points will be invisible.
The length of roofing and ridge screws is selected depending on the characteristics of the main roofing material and the thickness of the sheathing slats. Optimal choice: roofing screws 28 mm long (for side fastenings) and eaves screws 80 mm long.
Roofs can have simple and complex end sections. They may be lined with front boards or not. Sheathing systems for eaves overhangs can also be different. But despite all the variety of types of finishing of the upper part of the facade, you should be extremely careful when installing wind strips. The fact is that these additional elements are always in plain sight and all installation flaws will be visible on them. For example, dents from improper installation of screws. All these recesses will be clearly visible in sunny weather.
It is extremely important to follow the rules for installing components recommended by corrugated sheeting manufacturers. The following applies to wind strips: the step between the fastening elements must be at least 40 cm and no more than 50 cm. Otherwise, waves may form due to the influence of expansion forces on the additional element (when the roof is heated) and compression (when cooled).
Tools for work
To install the wind strip, you will need the same tools as for installing the corrugated sheet.
- Screwdriver equipped with battery.
- Metal scissors or a grinder with a metal disc, which will be needed for trimming components.
- Construction level.
- Hammer.
- Galvanized nails.
- Tape measure and marker (or pencil).
Wind board installation work is carried out at heights, so all safety precautions must be observed. It is recommended to use special belts with bags for storing tools. This will greatly facilitate installation work.
Wind bar installation technique
Step 1. A board with a thickness of at least 2.5 cm is nailed to the vertically located ribs of the sheathing. The width of the lumber should correspond to the width of the side flange of the wind strip. The work is carried out using a hammer and galvanized nails, or a screwdriver and galvanized flat-head screws.
The board should be positioned perpendicular to the roof cut. The wood is pre-treated with a compound that protects it from rot and insects.
Step 2. Work begins from one of the corners of the roof. A wind strip is applied to the nailed board so that its corner is aligned with the outer upper end cut of the board.
Plank (dropper)
Step 3. Start attaching the top flange of the wind strip. Stepping back 2-3 cm from the edge, screw in the first galvanized self-tapping screw. Next, hardware is installed in increments of 40-50 cm. When installing the end strip along the waves of the corrugated sheet, the fixation points of the additional element may coincide with the wave of the sheet. In this case, choose longer ridge screws. If the installation of the wind strip is carried out across the waves of the corrugated sheet, fastenings are made at the points of contact between the wind strip and the waves of the roofing material.
Step 4. Attach the side shelf of the wind strip to the board. Use a screwdriver and shorter roofing screws.
Step 5. Apply the next wind plank to the board so that it (the plank) overlaps the already installed one by 4-5 cm. This additional element is attached in the same way as the previous one.
The correctness of the work is monitored using a building level. If the roof is complex, measure the length of the overhang that needs to be covered with a wind strip. Then use metal scissors to cut the strip to the required length.
Attach the bar using the technique described above.
Video - Installation of cornice and end strips