Currently, roof structures made from metal profiles are considered quite popular. They are excellent for covering industrial, utility, garden and country buildings. Below we will talk about such a roofing unit made of metal profiles as a wind strip for corrugated sheeting.
Why do you need a wind bar on the roof?
A wind strip is an additional element used during the construction of a corrugated roof. This is a special corner in which one fastening shelf is fixed to the sheathing, and the second is designed to protect the roof overhang from strong winds, rain and snow precipitation. Wind slats for the roof are made from galvanized steel High Quality, covered with pural or polyester. A number of manufacturers sell shaped elements coated with stone chips.
This roofing unit serves the following purposes:
- Protection of roofing and gable overhang from moisture. External part The roof is protected by the roofing covering, but water quite often gets onto the rafter system from below. As a result, the supporting structures along with the sheathing become wet and become damaged, even if the wood is treated with an antiseptic. Wind bar retains water, thereby increasing the service life of the roof and its wooden elements.
- Protection from gusty winds. Strong crosswinds in regions with severe climatic conditions Quite often it tears off and damages the roof covering. Excessive load on the roof at such a moment causes the edges of the corrugated sheeting to break without protection. The wind strip helps to avoid damage to the roofing material, as well as cold wind blowing under the sheathing.
- The roof structure takes on a complete and elegant look. The planks chosen to match the roof covering hide all the unevenness of its edges. In addition, later it will be possible to produce high-quality and even lining of the overhangs with soffits or siding.
It is worth noting that to make a wind strip, you can take a cheaper bent metal profile, which can be found in any hardware store, but there may be problems when choosing shade and sizes.
Technical characteristics and types of elements for corrugated sheets
Guided by building regulations during the construction of a roof made of corrugated sheets or tiles in mandatory wind slats must be installed. They are installed along the entire perimeter of the roof to prevent precipitation from falling on the rafters and sheathing and from blowing strong winds.
There are the following types of roof wind slats:
- Frontal. It is made in the form of a corner, in which one fastening shelf is made straight, and the second duplicates the wavy relief of the corrugated sheet. This strip is attached to the roof overhangs, which are installed on the gable side. This unit covers one or two waves of corrugated board and the entire end board. Some models have a hood to remove moisture.
- Cornice. This strip is installed on the roof sheathing along the entire length of the overhang to the roof covering and installation of the drain. The cornice strip is made in the form of a galvanized corner with a polymer coating, with straight fastening shelves.
- Skate. To organize protection between the joints of the corrugated board, where the slopes connect, a ridge strip, which can be oval, rectangular or straight, is installed to ensure waterproofing. In addition, there are models with ventilation gaps that facilitate normal circulation air in the roof structure.
Wind shaped devices for corrugated sheeting have a length of 200 centimeters, however, their useful length is only 190-195 centimeters, since they are installed with a gap of 50-100 mm. Planks are manufactured with dimensions of 40×60 and 90×150 mm.
Experienced roofers advise attaching a 40-60 mm windshield strip to flat roofs, and in areas with low winds. The wide bar can be used for pitched roofs with any slope.
How to attach a wind deflector to a roof
The windproof strip for the roof can be installed on your own, since this stage does not require special construction skills or special tools from the master. For installation you will need roofing screws with rubber seals - 5-6 pieces for each strip; screwdriver; hacksaw for metal; sealant.
The sequence of fastening the units will depend on the location of assembly:
- Installing a cornice strip. It is mounted on the eaves of the roof before laying the roofing material using self-tapping screws with 40 cm indentations, while the overlap should be 5-10 cm. During the fastening process, the waterproof film covering the sheathing is lifted and spread onto the slats. In order for the design to be of high quality, the wind cornice must be pressed against the inside of the drain. In some cases, you may need strips made to special sizes.
- Installing a gable strip. Its installation comes last. Next, you just need to arrange the roof ridge. The dimensions of the upper fastening flange are determined based on the profile and height of the roof covering waves - as a rule, it is 13.5 or 14.5 cm. This unit is fixed in the upper part through roofing material to the sheathing every 30-50 cm. You can use self-tapping screws with a rubber washer as fasteners.
It is worth noting that sealants, sealants or construction tape can be used as additional insulation of the joints between the roofing and wind slats. According to allegations experienced craftsmen, the most effective seal is the one that duplicates the relief of the corrugated sheet, because it has an unlimited service life.
We hope that our material on how to attach a wind strip to the roof was useful to you, and that you will complete all roofing work correctly.
The main task of additional roofing elements is to protect the places most vulnerable to the penetration of moisture and wind. These include:
- joints of roof slopes;
- junction of roofing materials to walls, chimneys;
- ends, roof overhangs.
In addition to the protective function, the finishing elements are designed to strengthen the structure and decorate the joints. And if previously additional elements had to be made during the roofing process (often painted to match the roof), today they have been replaced by ready-made factory-produced products.
Features and purpose of finishing elements
Skate bar. It is mounted on the upper joints of roofing slopes covering the ridge girder. The cross section is angular (flat ridge) or radial (round ridge). To prevent blowing in and moisture from entering from the gables or overhangs (for a hipped roof), the round strip is closed with a ridge cap: simple or conical.
Valley planks. They are mounted on the internal joints of roof slopes of complex configuration: the lower strip is under the roofing material, the upper (decorative) is on top of it. Designed to seal and increase the efficiency of drainage of rain and melt water.
End strips. Prevents the wind from tearing off the roofing material fasteners from the side of the gables. They protect the under-roof space from precipitation and hypothermia, and prevent weathering of the insulation.
Cornice strips. Protects eaves overhangs from wind, slanting rain, and rising liquid in gutters drainage system.
Adjunctions. They are used for sealing and decorating joints between roofing and walls, and for organizing an apron around chimneys. They include lower and upper strips, which are installed before and after installation of the roofing, respectively.
Internal and external corners. Corner strips are used as auxiliary elements when filing pediments and eaves overhangs, organizing corner connections wall panels with spotlights, etc.
Snow guards. Planks mounted on top of the roofing material and designed to prevent avalanche-like snow masses. Reduce the likelihood of damage to gutters, minimize the risk of injury and damage to property from falling snow and ice.
Additional items For metal roofs, whose shapes and sizes differ from standard ones, can be made independently. To do this, the manufacturer suggests purchasing a flat steel sheet with a polymer coating, the color of which matches the shade of the roof and standard additional elements.
Installation subtleties
- Under ridge strips It is recommended to install a seal: universal or matching the shape of the roof covering. The planks themselves are mounted with an overlap of 10 cm.
- Installation end strips preceded by the installation of gutter holders.
- The sheathing under the valley must be continuous. Additional waterproofing will not be superfluous. The planks are mounted overlapping, the joints are sealed.
- The lower strips of junctions are installed in grooves, previously organized in the walls and chimneys, and sealed. Under the lower apron, drainage sheets with sides are installed, directed towards the valleys or overhangs. The upper strips are mounted to the walls, the upper apron - to the pipes.
- Snow retention strips are installed above the eaves overhangs. Planks over skylights will significantly reduce snow load on translucent structures.
Assortment of standard finishing elements in Moscow
Standard finishing elements of the Metal Profile Company are full set sheet steel products needed to put the final touch on roofing work. High dimensional accuracy makes it much easier installation work. A variety of available shades - a roofing solution in a single color scheme.
When installing the roof covering, give the structure proper tightness, reliability and harmonious appearance using finishing elements. Standard finishing elements for roofing from the Metal Profile Company: worthy companions to the best roofs.
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 it comes time for 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 wetting and moisture accumulation, which is why an additional eaves element is needed;
- diverts water flow into the gutter from the roofing slopes;
- 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 matches roofing and plank. 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 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 eaves element, a drainage system must be installed. 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 - .
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 the effects of precipitation and moisture ingress inner 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 you can apply 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 life 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 sheathe aesthetically and neatly 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 sealed and do not allow water to pass through. To do this, they need to be treated with a silicone-based sealant.
Among additional roofing elements special place occupied by a cornice strip. This element occupies a small amount of space on the roof area, but the main protective function and preservation of the integrity of the roof from moisture falls on the eaves strip. What do you need to know when installing this element so that the “bar does not sink”?
What does a cornice strip look like?
The cornice strip is manufactured industrially using sheet bending equipment. In most cases, the plank has a standard configuration, differing only in the angle of the shelf.
The width of the vertical plane and the dimensions of the eaves strips depend on the design of the rafter system, and logically repeat the angle of inclination of the roofing sheet.
Length finished product can reach two to three meters, and the dimensions of flat shelves and edges are 80x60x10 mm or 100x60x20mm, the thickness of the plank sheet is 0.4-0.6 mm.
It is along the bend of the two planes of the plank that water freely drips into the drainage system, bypassing the reliable rear - the front eaves board of the roof. Let us remind you that the bar has a second name - a dropper.
The design of the end strip and the cornice strip should not be confused. The differences between the planks are in the method and location of attachment.
The end strip protects the side edge between the eaves of the house and its ridge.
Traditionally, drip strips are installed under the waterproofing layer on the sheathing with an overlap and the hanging edge is inserted into the gutter.
Each type of roofing sheet has its own installation technology, but the design of the eaves strip for soft roof and metal tile roofs are the same.
Installation of eaves strips for various types of roofing
corrugated roof plank
The installation of a roof made of corrugated sheets begins with the installation of a strip. Required condition When installing the eaves strip for corrugated sheeting, its location is below the waterproofing carpet. In this case, moisture or condensation running down the waterproofing film, must hit the bar and then fall into the drainage system.
Initially, end boards are installed on the roof slopes. Most top board install above the sheathing and attach the plank to this board. Additionally, a breathable seal is installed under the corrugated sheeting for natural removal of water vapor. The planks are installed overlapping and secured using self-tapping screws or galvanized bolts.
Useful tips
metal roof strip
Installation of the eaves strip for metal tiles is carried out before laying the sheets. Initially, the frontal (eaves) boards are installed at the ends of the rafter system.
The cornice board can be installed in special grooves for galvanized fasteners.
Then prepare the support for filing the overhang. Hemming is carried out using tongue-and-groove boards and support beams. The next stage is installing the attributes of the drainage system. The cornice strip is installed between the sheets of flooring on top of the drainage fastening.
The fastening elements are self-tapping screws that are screwed into the front (cornice) board in increments of 30 cm.
More detailed information on the design of the drainage system and drip line are presented in the video.
roofing strip made of soft materials
The eaves strip for a soft roof can have a bend of 100-130 degrees. Therefore, it is selected depending on the slope of the roof slopes. The drip line is mounted along the edge of the roof in a vertical downward direction.
This condition applies to all types of soft roofing: roll, flexible tiles or roofing membranes.
The under-roof space of the sheathing is equipped with openings for ventilation and air passage through aeration channels. The base of the eaves strip for the tiles is secured to the sheathing and the gable protective strips are installed on the edges of the sheathing. Then they process and install the carpet under the valley, having previously coated the edges with bitumen mastic.
Recommended on set bar glue soft roofing material, and then lay ordinary tiles. Position soft tiles it is necessary so that the tiles of the first row “capture” most of the roof. Follow-up ordinary tiles laid with a shift. The edges of the tiles at the ends are glued especially carefully.
The plank for a soft roof is mounted with an overlap (with a minimum edge width of 2 cm) and fixed in a zigzag manner. Roofing nails are used for fastening; the fastening pitch reaches 10-15 cm.
How to install a drip line on tiles yourself is shown in this video.
Useful tips
When applied to a roof made of corrugated sheets or metal tiles, the base of the plank is secured to the sheathing. The lower edge of the plank is directed onto the installed drainage box or gutter vertically or at an angle. The radius of drops falling from the wall plane can be 45 degrees.
After pouring water onto the bar and visually tracing the passage of the drops, the placement of the drip is selected according to the output of the water drops. You can slightly lower or shorten the slope and location until the drip is completely secured.
Drip aprons
A healthy alternative to metal eaves when constructing a roof made of soft coverings are decorative drip aprons, which are a twisted coating of a development. The outer layer of the aprons is galvanized steel polymer coating 0.7 mm thick.
Installing such a drip is a real pleasure: I glued it with a special mastic, unfolded the “self-assembly” and laid it out at the mounting location. Perhaps these promising materials will find their fans when installing a “capricious” plank.
Thus, the process of installing drip line for any type of roof can be done independently.