Supply and installation of seam roofing.
INSTALLATION OF SEAM ROOF
Our company carries out roofing work of any complexity, we implement various projects on a turnkey basis. The material base allows you to launch several projects simultaneously. Availability of mobile folding machines, sheet bending machines and special professional hand tools allows you to perform the assigned tasks efficiently and in the shortest possible time. Tin roofing work (the work of a tinsmith roofer) is exactly what manufacturers of seam roofing work were previously called.
Seam roofing is a metal sheet with a characteristic seam shape. What pros and cons does it have?
Key Features. The design of a seam roof assumes that the sheets are fixed to each other without fasteners, which means that there are no corresponding holes that are necessary when installing most other materials. Under the influence of temperature changes, they often change in size, which can cause leaks. Seam roofing is not subject to this problem.
It is also durable. As a rule, sheets are made either from galvanized steel or from various non-ferrous metals (aluminum, copper, and so on). All materials are highly resistant to external negative factors. The service life of a seam roof often reaches 30 years or more. In addition, the sheets of material are light in weight and do not place a strong load on the foundation of the building.Also among the advantages of seam roofing is fire resistance. The sheets are not subject to combustion, therefore they are considered completely fireproof.
A specialist visit is free!
When installing a seam roof, it is necessary to carry out preparatory work, namely:
- arrangement of the rafter system (or alignment of the rafter legs);
- installation of lathing (either continuous or thinned (stepped) lathing);
- installation of roofing panels on a prepared base (fixing with clamps);
- installation of a seam roof ridge or a ventilated ridge;
- cornice device, with possible installation organized drainage of water (gutters);
- With correct, qualified installation - guaranteed tight connection (no leaks)
Roofing panels are attached to the sheathing (to a solid base or step sheathing) using movable or fixed clamps. Seam roof covering with their help it makes the roof durable.
The order of numbers when assessing the installation of a seam roof
| Types of jobs | Unit | Cost of standing seam roofing |
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| gable roof | hip roof | complex roof | copper/titanium-zinc roofing | ||
| Installation of seam panels | sq.m. | 550-600 | 600-850 | 850-900 | 950-1200 |
| Installation of connections to the wall | linear meters | 350 | 350 | 350 | 650 |
| Installation of junction drip line | linear meters | 180 | 180 | 180 | 250 |
| Installation of skates, hips (spinal skates) | linear meters | 250 | 250 | 350 | 700 |
| Installation of seam roof valleys | linear meters | 450 | 450 | 580 | 700 |
| Installation of end strips | linear meters | 250 | 250 | 250 | 400 |
| Installation of cornice strips | linear meters | 150 | 150 | 150 | 200 |
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Installation of connections to pipes and ventilation shafts, as well as to dormer windows |
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installation of seam roofing price per m2,seam roofing price, zinc-titanium roofing
Photos of installation of seam roofing of various materials:
1. Installation of a seam roof made of galvanized steel.
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Copper roofing
2. Repair and installation of seam roofing made of copper (copper seam roofing). Do not forget that when installing a copper roof it is necessary to use copper fasteners or fasteners made of of stainless steel. Roofing copper for standing seam roofing. Copper roofing- roof covering, which is made of copper sheets with a thickness of 0.55 to 1 mm. Certain grades of metal are used for their manufacture:
2. M2 - no less than 99.7%.
3. M3 - no less than 99.5%.
The most expensive material is the M1 grade. It is made to order. Typically, copper products of grades M2 and M3 are used. The quality of the future roof is influenced by the size and thickness of the workpieces. Their values should be the same, which will create an ideal coating.
Copper, due to its chemical properties, over time becomes covered with a layer of oxide film, which prevents the destruction of the surface. At first the roof is red-yellow in color. Under the influence of the environment, the metal begins to darken, approaching a bronze hue, then the color changes to dark brown. After 15 years, a dark green patina forms, which protects the metal from further oxidation.
Currently, there are technologies that allow you to preserve the coating in its original color (oxidation), gain a matte gray coating (tinning) or a greenish tint (patination). It acquires a light shade after applying a varnish coating.
To create a copper roof, different starting materials, which determine the appearance:
1. The seam method is used on large areas. Copper paintings are cut directly on site, avoiding the creation of transverse joints. Fastening to the rafters, when done correctly, creates an airtight surface. The remaining copper scraps are used for castings, drainpipes and etc.
2. Flake coating is suitable for roofs with a slope of 30 - 60˚, having complex shape, domes, etc. Individual elements made from copper sheets 0.6 - 0.7 mm thick.
3. Roofing tiles are made from rolled sheets with a thickness of 0.6 to 3 mm.
4. Soft copper roofing consists of two types of materials connected to each other. A thin (70 micron) layer of copper foil is applied to the elastic bitumen base.
5. Roof underneath beautiful name"Spanish Dune" is very similar to clay tiles. The elements are connected to each other with locks.
The advantages of a copper roof are:
1. Light weight.
2. Durability.
3. Easy repair in case of damage to integrity.
4. Ability to create coatings of various configurations.
5. Resistant to temperature changes.
Disadvantages of copper coating: high price, high heat dissipation, noise effects. Heat loss can be reduced by laying insulation, and extraneous sounds will be dampened by a layer with effective noise absorption.
And here is the installation of a copper seam roof in the photo:
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Metal roofing
3. Roofing work on installation of a seam roof made of galvanized metal with polymer coating(polyester, pural). It is often called painted metal. When installing a seam roof, a special hand-held roofing tool is used.
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Titanium-zinc roofing
Titanium-zinc- modern roofing material, environmentally friendly because it does not contain carcinogens. It is also a more economical building material because it is cheaper than copper. An improvement over its earlier predecessor, the material has become widespread in the construction and restoration of buildings and structures around the world for both roofs and facades. Due to its ability to form a protective oxide film (patina), zinc-titanium ceilings have a long service life. Patina formation begins immediately after the first contact with environment and lasts about 5 years. At the end of the coating process, the surface of the zinc-titanium roof becomes uniform grey colour. It should be noted that artificial zinc-titanium aging technology has successfully undergone factory conditions in many European countries. The natural tint of zinc-titanium varies from almost white to dark gray, depending on the number of additional alloys. Any other color, including black, is the result of artificial turf. Roof installation zinc-titanium.
“Artificial aging” - (the effect is achieved over several years, when, under the influence of climatic effects, zinc restores the natural protective layer of patina), losing its metallic luster. Technology " artificial aging"metal developed relatively recently. It is clear that it is not easy to speed up procedures that usually take several decades.
If a roof covered with a zinc-titanium alloy is damaged, it can be easily restored, and the repair area will quickly return to its natural color (with the exception of the use of materials coated with an artificial patina).
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When working with roofing materials such as standing seam roofing, we can say the following. Metal roofing is a roofing covering of a flat sheet with standing ridges, a double standing seam (or seam) that is either snapped or rolled. The length of the roof covering can be almost any - thanks to this, side overlaps and horizontal folds can be completely eliminated (the only possible place for leaking roofs with a slight slope). Roofing sheets are attached to the sheathing using brackets, which will not damage their integrity (they are hidden under the ridge). A double standing seam with a height of 25 to 30 millimeters guarantees the tightness of the roof.
This roof and the roofing on it offers unsurpassed quality indicators for the use of all materials, galvanized steel (including polymer coatings), copper roofing, almost legendary material, the service life of which has been valued for centuries, as well as zinc-titanium (zinc titanium seam roofing).
Cover the roof with a seam roof- our task, solved by professionals.
Installation of complex and seam roofs is considered one of the most reliable roofs in our time.
The main materials in the manufacture of the roof are galvanized steel, polymer-coated steel and zinc-titanium and copper sheet.
Folded roofing patterns (a wide strip with standing L-shaped ridges) are made on mobile roofing machines and installed on the base using hidden fasteners (roofing clips).
When installing roof fasteners, special tools (bending and bending edges, edge bending, etc.) and mechanisms, including electromechanical ones, are used. Specialists StroyGarant-2002 have specialized skills and most of the work is done manually.
Before you study information on how to correctly install and arrange a seam roof, you should familiarize yourself with the basic terms of such a design.
Seam roofing is a special modern covering where compound adjacent structural parts made using special folds.
The painting is one of the elements of modern roofing, in which all the edges and edges are previously prepared for arranging a seam connection.
Among the main advantages of the roof can be noted possibility of long-term use of the coating, based on the presence of a modern anti-corrosion coating.
The folded covering elements are lightweight and have a smooth surface. Thanks to this, snow and water do not linger on the surface.
In this article we will look in detail at how to make a seam roof from iron sheets and how to properly prepare the sheathing for the roof using special technology.
The installation of a seam roof begins with the choice of fastening - the seam. The folds can be standing or lying, but they differ in that with the help of horizontal folds you can effectively connect all the elements that are in the same position. Standing elements can be used to connect the roof along the entire length of the slope.
Rebates are characterized by different types of joints produced, which can be single and special double. In the first case, there is one classic bend; a double bend is distinguished by its ability to ensure maximum tightness. Such folds are used in those areas of the roof where there is a danger of moisture accumulation due to leakage, which is typical for gutters.
Types of castles
Seam roofing tool
For proper installation, you may need many tools, different attachments for them and other elements. Before installation, you should prepare the following roofing tools for standing seam roofing:
- All possible measuring devices - plumb line, level, levels.
- A tool for identifying the difference between the height of all surface points in relation to a particular set level. Equipment is required to measure possible increases in levels.
- Manual and more modern electric scissors, which are needed for cutting and neatly cutting out roofing elements.
- Nibbler for carrying out the operational sharpening process.
- Hacksaw and construction jigsaw for efficient sheathing.
- Standard grinder.
- Household drill and hammer drill.
- Fastening gun for pressing out. Rubber and wooden mallets.
Rebate panels can be cut using angle grinders. The main thing is that all untreated areas should be carefully protected from sawdust, and the cut areas should be treated with special anti-corrosion compounds.
Tool for installing seam roofing
Roofing pie
The seam roofing pie is characterized by a special multi-component system, which, in addition to the roofing itself, consists of various other elements. This also includes quality. Hence the name roofing pie - it consists of a large number of layers. If the pie is arranged correctly, a large number of different problems can be avoided. This is an ideal opportunity to prevent the appearance of icicles, the accumulation of condensation and heat loss.
NOTE!
Arrangement of the pie requires special attention, since errors in the design process of a particular layer will seriously reduce general indicators strength, as well as the durability of the structure.
Competent roofing is of great importance in the process of designing and installing a roof. She takes out all the roofing pie excess moisture. To drain water through the membranes into the equipped ventilation, it is worth leaving several holes in the roof during the installation process. Wooden sheathing will cope with this process perfectly.
Roofing pie
What is a clamp and why is it needed?
In the process of installing seam roofing, fastening devices such as clamps are used. In fact, This special device, which is intended for fastening roofing sheets. You don’t have to use nails, which can disrupt the integrity and complete tightness of the coating.
The use of a clamp greatly simplifies the process of installing the roof covering and ensures the overall durability of the system. Finishing the roof with similar elements makes it aesthetically pleasing and as airtight as possible.
Sheathing for standing seam roofing
The fastening of the seam roof is carried out strictly in advance installed sheathing. This will help prevent sagging of the steel sheets, but only if the required pitch range is fully observed.
The following materials are used as lathing:
- Galvanized metal profile.
- Eco-friendly wooden beam 50 to 50.
- Board 100 by 32.
These elements are attached strictly from below and upward, that is, from the eaves to the roof ridge. If you are installing metal sheathing or loose wood sheathing, you should use a high-quality anti-condensation film before installing it along the rafters. When using a special continuous sheathing or other completely continuous base, a special film of the category will need to be laid over the entire flooring.
Lathing pitch - 20 centimeters, it is allowed to use a step in the range of 20-40 centimeters.
The material provides the following advantages:
- Installation of a permanent ventilation duct, which will remove condensed moisture appearing on the back side of the roof made of metal;
- Effective preventing destructive corrosion metal elements, as well as rotting of wood elements;
- Significant reduction of noise from precipitation.
Where roof assemblies are installed - valleys, roofing cornices, as well as connections and abutments to various protruding elements of the structure, the second lathing profile element is installed. This gives increased strength and rigidity to the installed panels.
Additional elements
The design of the sheathing is made smooth; the presence of recesses and various protrusions is unacceptable. Roofing ribs and standard ridges are mounted straight, and the lowest board is also straight.
If the sheathing is made of wood, preference should be given to wood species such as aspen, spruce, fir, and pine. The humidity of the boards should not be more than 12%. To give the wood strength and durability, the material should be impregnated with special antiseptics.
Lathing
You can significantly increase the service life of wooden sheathing by coating it with drying oil. A structural vapor diffusion film is laid on the finished sheathing. Its durability, as well as the quality of the entire roof as a whole, depends on the proper arrangement of the sheathing. Even relatively A slight deflection of the sheets can weaken the density of the mounted folds.
If an insulated roof is installed, high-quality ventilation must be provided. In this situation, a counter-lattice is first installed, a special hydro-windproof membrane is mounted under it, and only then the lathing itself
Seam roof slope - optimal and minimal
In the process of installing a seam roof, it is important to observe the slope of the roof. It can be optimal or minimal. The choice is made based on the architectural and planning features of the building.
The optimal slope is on average 10-15 degrees of inclination.
Builders move ordinary living quarters to the higher part, and utility rooms and bathrooms to the lower part. The optimal roof slope may be steeper, then The angle of inclination can be 20-30 degrees.
As for the minimum slope of a seam roof, they are recommended for certain categories of roofing coverings. The design features of such a roof make it possible to cover roofs of any size without any problems, as long as they are flat.
Roof angle
In this case, the angle of inclination does not go beyond 15 degrees. The type of material used directly depends on the slope angle. Suitable for 20% roofing. Ideal for roofs with a 5% slope. In all cases, small overlaps must be taken into account when installing the coating. A special sealing tape must be placed at the joints.
Seam roof waterproofing
When installing the roof it is important Special attention pay attention to connecting seams. This is one of the most important indicators, which has a direct impact on ensuring the sealing of the roof and seams.
If you use a special covering equipped with a self-locking fold, as well as a double standing fold, you can ensure a high level of tightness.
It is equally important to use a high-quality fastening element, that is, nails, screws and a clamp for a seam roof, made of high-quality galvanized steel.
They are playing important role in ensuring sealing, the longer they will maintain their quality, preventing leaks.
Proper installation of hydro- and thermal protection under the roof completely reduces the risk of rapid wear of the roof covering. High levels of tightness will remain for decades.
Installation of seam roofing - instructions
The construction of a structure from a professional point of view must be carried out with careful observance of certain conditions, as well as the sequence of actions established by professionals.
Do-it-yourself seam roofing:
- Production of special paintings, which will be used to cover standard slopes and other parts, for example, overhangs and roof gutters. For this purpose, blanks or paintings are produced according to a previously prepared drawing and diagram.
- The edges of these parts must be bent, that is, they are prepared for use with seam joints.
- Raising previously prepared paintings onto the structure, connection with special standing seams. Pre-installed paintings are securely attached to wooden sheathing clasps. One side is inserted into the rebate, the other is connected to the beam of the mounted sheathing.
- On final stage Aprons are installed on all existing holes made from high quality steel.
- If you still have questions about installing the coating, we recommend watching the video below.
Rebate clamp
Fold tie
CAREFULLY!
When using sheets 10 meters long, it is worth attaching them securely to the sheathing installed on the roof, using special floating type clasps. This is the only way the roof will not lose any high level tightness even with temperature changes.
Installation of snow guards
The work of installing the roof involves the installation of special 
fencing. It's the kind that's able to decide great amount different tasks.
By means of fences you can reduce the flow of snow from the roof. This will completely prevent the possibility of damage to health and property. It is possible to protect growing plantings near the building.
Fences seriously improve working conditions during work related to roof maintenance. Snow guards effectively prevent possible damage to the gutter.
It is important to carry out such roof fencing in full compliance with the requirements officially recorded in SNiP 21-01-9. The documents indicate that fences must be present on roofs with a slope angle of 12 degrees and with a total eaves height of 10 meters.
Snow guards for standing seam roofing should not only be reliable and durable, but also attractive in their external characteristics. It is advisable to ensure that the design is fully consistent with the overall style of the house. For this purpose special profile pipes or similar materials. All parts of the fence should be painted with a special polymer paint on a special powder base.
Installation of snow guards
Useful video
Detailed installation of seam roofing in the video below:
Conclusion
If the work is carried out strictly in compliance with the listed rules and conditions, seam roofing can rightly be classified as a durable and at the same time unpretentious coating during operation. Roofing can be installed without problems in private buildings, as well as in public buildings.
In contact with
How to make a seam roof correctly. Advantages and disadvantages. Repair tips. Construction technology and necessary tools.
In order for a seam roof to serve for a long time and its reliability to be beyond doubt, it is necessary to have certain knowledge. Advantages and disadvantages of seam roofing. What materials exist for standing seam roofing? Nuances roofing structure. Rules for installing seam roofing.
Installation technology. Features of the work. Cost of standing seam roofing. Installation work order. Repair tips.
Advantages of seam roofing
Seam roofing is the most reliable way roof arrangement. The seam method provides the most airtight connection of metal sheets. In addition, metal roofing is beautiful and durable.
A seam is a seam by which sheets of metal are joined to each other. Seam connections are absolutely tight. Thanks to this technology, a seam roof is the most reliable and durable type of roofing for a home. This fact is recognized by both construction specialists and ordinary consumers.
- The main advantage of a seam roof is its tightness, which is achieved by installing a seam seam. The peculiarity of this seam is that the technology for installing a seam roof does not allow the presence of holes in the canvas roofing material, and, accordingly, completely eliminates the penetration of moisture into the structure;
- The small mass of roofing sheets with a thickness of 0.5-0.6 mm significantly reduces the load on the foundation and rafter system buildings;
- A smooth surface facilitates the rapid removal of rain and snow, protecting the roof from damage;
- Fire safety. Seam roofing is metal, so it cannot burn or melt;
- Durability. If the installation of a seam roof is carried out efficiently, its service life reaches 60 years or more.
Disadvantages of seam roofing
- Difficult to install. A seam roof can be installed with your own hands only if you have the skill to work with metal;
- The need to construct a lightning rod due to the ability of the roof to accumulate electrical voltage;
- High resonating properties. The sound of raindrops is quite noticeable, which requires additional sound insulation measures.
Disadvantages also include the high cost of a roof with a special coating to give a more aesthetic appearance to the structure, since the simplest version (galvanized steel) does not look very presentable.
Pictures and folds
Metal has been used as a covering for roofing for a long time - it is durable, non-flammable, ductile and easy to use. Modern technologies have significantly expanded the range of metal coatings: for seam systems today they use rolled and sheet galvanized steel, steel with a protective polymer coating, etc.
Seam roofing gets its name from a special method of fastening metal sheets of roofing material to each other. A special joint system guarantees absolute tightness without rubber seals, adhesive seams, and most importantly, through holes that can cause leaks. In addition, the stiffening ribs obtained during the folding process give the roof additional strength and expressiveness.
In order for the seam roof to be a continuous covering along the entire length of the slope, individual sheets are joined into pictures using a seam lock, and they, in turn, are fastened to each other. What is a picture and a fold?
Expert opinion
Filimonov Evgeniy
Professional builder. 20 years of experience
Ask a question to an expertThe picture is a roofing element whose edges are prepared for connection. fold - special kind a seam formed when joining sheets of metal roofing material.
There are several types of folds: single, double, recumbent and standing. Lying seams are used for horizontally joining roofing sheets, and standing seams are used for fastening vertical (side) strips of roofing material.
The folds are made (rolled) manually special tool or in a more modern way - electromechanical seaming devices. Self-locking seams hermetically connect roofing sheets without the use of tools. But the double standing seam is considered the most reliable. It is this type of seam that is most often used on seam roofs abroad.
Modern equipment for rolling seams allows you to make pictures of any shape: conical, radius and others, so seam roofing is suitable for roofs of different configurations. In this case, the seam can have a thickness of 5 mm and a height of 30-70 mm, depending on the slope of the roof.
We wrote about how to choose a material for a seam roof, as well as what types of seam joints are considered the most reliable. Today we will talk about the design features of metal roofing and the technology of its installation.
Guaranteed protection of the seam roof from condensation, deformation and depressurization will help ensure certain rules concerning the arrangement of the roofing pie, the features of laying the roofing itself and the sequence of its installation.
In this article we will consider the following questions:
- What elements does a seam roof pie consist of?
- How to arrange the eaves overhang of a standing seam roof.
- Sequence and technology of installation of seam panels.
- Arrangement of valleys and abutments of seam roofing.
If the construction of a house begins from the foundation, then the installation of a seam roof begins with the creation of a roofing pie that protects attic space from condensation and cold. At the same time, the roofing pie serves as reliable protection against noise arising from precipitation.
Pavel T. User FORUMHOUSE
If the roof insulation is 250-300 mm (I have 300), then no noise is heard (unless, of course, there is hail the size of an egg). The only place where I can hear the rain (and even then weakly) is in the bathroom, which has a suspended ceiling.
To ensure that the thermal insulation is of the required thickness, the insulation can be laid in several layers (between the rafters and under them).
The roofing pie of a seam roof consists of several layers:
Let's take a closer look at them.
Support sheathing – lower wooden slats, on which a vapor barrier film and insulation are placed.
Vapor barrier film is a special material that does not allow moisture from the room to penetrate into the insulation.
Rafters – wooden beams cross section 200x50 mm. The distance between the rafters is 1.2...2 m.
Mineral wool is most often used as insulation. The insulation is laid between the rafters directly on vapor barrier film, which, in turn, is supported by the lower sheathing.
Waterproofing is a special film that allows moisture to pass through only in one direction (from bottom to top). Waterproofing prevents under-roof condensation from penetrating into the insulation, but allows moist air to pass through, accumulating in the layer mineral wool. Waterproofing film is a diffusion (breathable) membrane that is sold in hardware stores.
berd80 User FORUMHOUSE
You can lay out a diffusion membrane, you can use a special bulk membrane (but it costs a lot). There was no consensus on this issue.
Waterproofing spreads across the rafters in the direction from bottom to top (starting from cornice strip, towards the ridge). The film is attached to the wooden rafters with staples (using a stapler). Individual strips of the waterproofing membrane are laid overlapping (the overlap width is at least 100 mm). On gable overhangs it is necessary to ensure the overhang of the film (overhang width is approximately 150 mm).
The film should not be in a tense state, and the permissible sagging of the membrane between two adjacent lags is 35 mm.
Under no circumstances should you use the same material as a vapor barrier and waterproofing. Moreover, you cannot swap them. All this will lead to the accumulation of moisture in the insulation or, conversely, in the room. Mold development and subsequent destruction building structures in this case – guaranteed.
Counter-lattice is a 50x50 beam that is nailed to the rafters on top of the waterproofing film. The counter grill allows you to create air gap between waterproofing and seam covering.
A special sealing tape is placed under the counter beams, which ensures tightness at the nail joints and protects the insulation from moisture.
Sheathing - transverse strips nailed to the counter-lattice at a certain distance.
Arhios User FORUMHOUSE
A 50x50 block (counter-lattice) is nailed along the rafters, and on them (across) - 100x25 planks with a spread (lattice).
The counter-lattice provides ventilation of the under-roof space, which eliminates the condensation that forms there. In order for the counter-lattice to be guaranteed to fulfill its functions, the eaves overhang of a seam roof must be made according to the following scheme:
The sheathing must be strong, rigid and even. The maximum clearance between the sheathing and the control batten 1 meter long should not exceed 5 mm.
Effective ventilation of the under-roof space is ensured by a ventilated ridge.
And also a ventilation mesh tape made of PVC, which is stretched between the sheathing and the front board of the eaves overhang.
Thanks to these two elements, constant ventilation of the under-roof space is ensured.
The pitch of the sheathing deserves special attention - the distance through which the transverse strips are nailed. In accordance with the set of rules for the installation of metal seam roofing (SP 17.13330.2011), the distance between individual sheathing strips should not exceed 200 mm. This allows the foot of a person walking on the roofing to rest on two boards at once, which protects the metal from deformation.
Along the edges of the roof (in areas of roof overhangs), as well as in the gutters, a continuous boardwalk with a width of at least 700 mm is created.
Some users of our portal recommend making a continuous sheathing over the entire area of the seam roof, which, in general, is not a mistake (especially if this coincides with the recommendations of the manufacturers of seam roofing). For example, according to technological requirements The continuous sheathing is necessarily “spread” under the zinc-titanium roof.
Continuous sheathing is a relative concept. A small gap (no more than 10 mm) must be left between each transverse plank of the sheathing, which will compensate for the thermal expansion of the wood.
More details can be found by visiting the corresponding FORUMHOUSE section.
Procurement of materials
If you decide to make folded pictures from rolled or sheet metal, then you cannot do without the use of sheet bending and folding machines. Purchase similar equipment for personal construction - impractical. But this does not mean that metal should be bent by hand.
vasilpolt User FORUMHOUSE
It is better to use the service of a team that has a machine for rolling pictures. The quality of the roof in this case will be better than if you bend the rolled products by hand. There is even separate service- “Picture rental.” Virtually every roofing company that has necessary equipment, offer it to their clients. Try searching in your area.
Also, using sheet bending equipment, you can produce the necessary additional elements. What kind of extras will be needed for construction - it depends on design features roofs.
The photo shows typical profiles, the geometry and dimensions of which may differ depending on the characteristics of a particular roof.
Construction and installation of a curtain rod assembly
Installation of a seam roof begins with the installation of eaves overhangs. We immediately draw your attention to the fact that the eaves overhangs have different designs. It directly depends on the design of the drainage system. Gutter systems, in turn, can have suspended or wall-mounted gutters.
The eaves overhang with a hanging gutter does not have transverse folds, making the roof more airtight and easier to install. Considering that snow and ice can easily damage a suspended drain, roof surfaces with long slopes must be equipped with additional elements for snow retention.
A system with wall gutters and flat top flashings has more complex design, and it is better to trust its installation to experienced tinsmiths. The rigidity of a system with wall gutters is an order of magnitude higher than that of its counterpart with hanging gutters.
Roofer1959 User FORUMHOUSE
Regarding gutters: if they are made correctly, then any are good. The wall-mounted one is more reliable in terms of rigidity, and I can vouch for its safety. But there is a weak point - the liner of paintings (especially if the fold is single). The suspended one does not have this disadvantage, but its rigidity under certain operating conditions can be called into question.
There is no consensus on which drainage system should be installed in conjunction with a seam roof. But no matter which option you personally like, the cornice assembly will have to be arranged according to the same principles.
Installation of the cornice assembly begins with the installation of drips and ventilation tape.
The lower eaves profile – the “drip tray” (through which the condensate formed in the under-roof space will flow) – is mounted on the rafters and covered with a waterproofing membrane. This is done at the stage of arranging the roofing pie.
A thin layer of adhesive or roofing sealant should be applied between the waterproofing and drip line.
Sometimes the bottom drip is not used at all: for example, if the under-roof space is well ventilated (with the help of a ventilated ridge on top and a ventilation tape on the bottom). But it is better if it is installed after all.
nekorsakov User FORUMHOUSE
First of all we installed plastic mesh for the gap between the sheathing and the front board. Eaves strips were placed on top of the mesh, which were fastened to the sheathing with galvanized roofing nails, driving them in a checkerboard pattern. The planks were mounted along a cord stretched along the eaves, and the mesh was simply attached tightly along the edge.
PVC mesh protects the under-roof space from insects and debris. The distance between the cornice strip and the ventilation mesh must be at least 2…3 cm.
If you plan to use suspended gutters as part of the roof, you need to think in advance about how to install eaves hooks for the drainage system. Thus, long curtain rod hooks, which are attached to the top sheathing, are inserted directly under the curtain rod. Under each hook it is necessary to make a recess in the surface of the sheathing. Otherwise, the seam paintings along the edge of the overhang will go in waves.
To give the eaves overhang additional rigidity, metal roofing spikes are installed under the eaves strip.
The crutches cut into the flooring flush with the surface of the sheathing (similar to drainage hooks) and are attached to it with self-tapping screws.
The distance between two adjacent crutches is 60…70 cm.
Standard crutches are commercially available, but you can easily make them yourself. For the manufacture of crutches, a steel strip of 40x4 mm is most often used. Blanks of the required size are welded together, after which they are drilled and subjected to anti-corrosion treatment (treated with a primer).
Fasteners for galvanized roofing (including crutches) must be made only of galvanized steel.
A standard T-shaped spike for an eaves overhang has a width of 100 to 200 mm, and its length depends on the design features of the roof.
Crutches are used to strengthen eaves overhangs, as well as other roofing elements. Therefore, they can have different geometries, which depend on the intended purpose of the product.
Seam connections themselves are already stiffening ribs. Therefore, on roofs with suspended gutters, roofing spikes may not be used, but can be replaced with strips of galvanized or painted metal. They are installed along the overhang. Steel strips are placed on top of the cornice strip or placed under it, depending on the geometry of the cornice profile.
nekorsakov
Before installing the rebated paintings, it was necessary to install additional strips of metal, reinforcing the rigidity of the overhang and forming a protrusion (50mm), for which the curved edges were then secured and crimped.
Seam roofs equipped with wall gutters and flat flashings must be reinforced with roofing studs.
Having completed the arrangement of the cornice assembly, you can move on to the next stage of work. But first, let's talk a little about construction tools.
Tools and accessories for mounting folded pictures
A mallet (plastic, wood or rubber) and a hammer are tools for forming bends and other elements of a seam roof.
Shlazen (mandrel, mandrel-blade) - a device that serves to form ridges and arrange locks at junctions (valleys, bypasses ventilation ducts and chimneys, etc.).
Straight and corner pliers (large and small) for forming seam bends and other complex elements and roofing.
Crimping roofing frames – used for crimping L-shaped and double seams. Essentially, both frames are used to close a double seam, because the folding is carried out in two passes: the L-frame closes a single standing seam during the first pass, and the frame to close a double seam is used during the second pass.
There are also frames for bending roof overhangs. They are used when installing various paintings (including self-latching ones).
Set of metal scissors with different cutting angles.
You cannot cut panels with a grinder or other abrasive tool! It's destroying protective covering material.
Installation of roof slopes using the example of a gable roof
Installation of roof slopes begins with the installation of the starting panel. The key difference between the starting panel and the ordinary panel is the special geometry of the profile, thanks to which you can attach the picture to the sheathing on both sides at once.
The pitch between adjacent fasteners (clamps) is 40...50 cm.
The clasps must completely repeat the geometry of the bends that are on the side shelves of the folded paintings. Such fasteners can be made independently, or can be purchased on the construction market.
If the length of the roof slopes exceeds 6.5 meters, experts recommend using movable clamps, which allow you to compensate for possible deformations from thermal expansion of the panels.
After installing the starting picture, the rest of the roof is installed.
nekorsakov
Next to the laid and fixed picture, the next one is laid, which overlaps (with a curved edge) covering the nail flange of the previous panel. Both pictures are crimped into a lock together with already installed (hidden) clasps. The result is a very reliable and airtight connection, because all fasteners are covered with sheets of metal.
Crimping of seam joints is carried out in a standard sequence. First, using a frame to close the horizontal lock, the first crimp is performed. A second crimp is then carried out using the double fold closure frame.
The finishing picture is cut to size (so that it does not protrude beyond the gable overhang), folded and secured with clamps to the sheathing. The gable overhang is subsequently covered with a special profile.
Foamed soundproofing tape, which can be placed under the seam panels along their entire length, additionally protects the room from noise generated during rain. The tape is cut to size and stapled to the sheathing.
We have described the installation sequence of paintings produced on folding equipment according to custom sizes. Installation of a self-latching roof has its own nuances.
For example, when installing self-locking panels, instead of clamps, roofing screws are used, which are screwed into the nail strips of seam panels. The nail strips have oblong holes that help compensate for thermal deformation of the panels.
To attach clasps and self-locking panels to wooden sheathing, use roofing nails or galvanized self-tapping screws with a press washer (for wood) that have a flat head.
To prevent the self-locking roof from waving in hot weather, the screws must be screwed exactly into the middle of the oblong hole. In this case, after screwing the self-tapping screw completely, it should be unscrewed about a quarter of a turn (so that the panel can move slightly under the influence of thermal expansion).
Design of the roof in areas of eaves overhangs
The ridges of folded paintings, located in places where the eaves overhang, should be trimmed (literally by 2...3 cm).
After this, the remaining (protruding) part of the picture will easily bend under the eaves overhang, forming a reliable and airtight eaves overhang.
It is not necessary to completely remove the outermost part of the ridge. It can be folded, forming a neat decorative plug at the end of the fold.
Installation of side end strips
We present the installation diagram for the side gable profile.
- The beam on which the wind strip is attached (the dimensions of the beam are selected based on the geometry of the wind profile).
- Roofing screw “metal-wood”.
- Side end strip.
- Start/finish seam roofing panel.
- Self-tapping screw with press washer.
- Klyammer.
At the junction of the roof slopes, the end strips are connected as follows.
Installation of a ventilated ridge
The main elements of a ventilated ridge are: the upper ridge profile, ventilation grille and supporting elements.
nekorsakov
I decided to place the lower (support) strips between the sheathing and the picture, without securing anything else. I mounted the upper planks on top of them (with some overlap). The support strip is ultimately held not by individual screws, but by an entire roofing sheet, fixed with clamps and pressed together with adjacent sheets. In this mounting option, the perforated wall of the support strip turned out to be pushed deep from the edge, which seemed to me both aesthetically and functionally better (away from the “aggressive” external environment with its sediments).
Pipe bypass
Chimneys and ventilation shafts are protruding elements, the bypass of which when installing a seam roof requires certain skills in performing tin work. Let's consider standard option bypass using the example of a self-latching roof. Any non-professional roofer can install it.
Pieces with locks are cut off from standard seam panels (indicated in red in the diagram). They are used to form abutment strips (side aprons), which on one side are adjacent to the pipe wall, and on the other, snap into place with adjacent panels. The space between the side aprons is closed with junction strips (top and bottom), which do not have a latch. A hook is made on the top bar, on which the picture fits to the chimney from above rests. The bottom bar with a hook rests on the bottom picture.
The junctions of the aprons with the pipe walls are sealed with roofing sealant.
Panels that are rolled with a double seam are mounted in the same way at the pipe bypass.
All four aprons, in this case, are connected to the adjacent paintings using recumbent and standing seams.
Valley device
Let us immediately pay attention to the requirements for arranging the base for the valley plank: the base here will be a solid wooden sheathing.
The design of metal junctions should ensure maximum tightness of the roof at the junction of two slopes. Therefore, the valley strip must be secured to the sheathing with clamps (in no case with self-tapping screws), and the junction of the paintings to the valley should be closed with a double fold.
The owner of the sofa
Not The best decision- make holes in the paintings (and at the same time in the valley) with self-tapping screws. It is more correct to make a fold (fold) on the edge of the picture and place it on the corresponding fold of the valley. The result is a recumbent fold. The overlap size is approximately 30 millimeters. The endova, in turn, is attached with clamps to the sheathing.
These rules are relevant for folded pictures and profiles made from sheet or rolled products using sheet bending/folding equipment. When installing junctions on a “self-latching roof”, you should follow the instructions and recommendations of the roofing panel manufacturers.
Wall connections
The connection to the wall is a structural element without which no complex roof can do. Similar connections have simple design and are performed using a special profile.
You can find out more in detail, as well as about the technological aspects associated with its installation, in the corresponding section of our portal. You can get information by reading an article based on recommendations FORUMHOUSE users. For those readers who want to see a visual master class on installing a seam roof, we have prepared a short thematic video.