The roof of the metal: structural features and installation procedure

If you have not yet decided on the kind of roofing material, The roof of the metal may be the best option. This roof is relevant for any region and has a number of advantages. Offer to meet with the structural elements and the order of the installation work to the installed system will serve you as long as possible.

Types of roofs of metal, depending on the form

The design of the pitched roof may differ materially. Its configuration depends on the number of planes (ramps) and their position relative to the horizon. Depending on the design, the roof can be divided into:

• Shed. The easiest option, assuming that the different height of the structure walls act as support. Such a roof can hardly be called attractive, but because it most often choose to commercial buildings;
• gable, Sometimes called gable. The most common species in demand in the country and private construction. As a support for the bottom of the ramps are the walls. The upper are joined together, forming a strong point;
• roof. Such transformed from a gable roof, but has the characteristic kinks. Due to this, it was possible to increase the internal space under the roof. If desired, it can be used for arranging living room;
• hipped. The design has additional ramps (hip) in contact with the ridge. If the hips do not reach the ridge system is called poluvalmovaya. For hip roof characterized by visual appeal and high resistance to wind loads;
• tent. This roof looks very similar to the many-sided tent, consisting of triangular faces that converge at a single point. Differing reliability, it is quite difficult in the apparatus;
• mnogoschiptsovye. The design is relevant to a complex architecture project.

Tip! Choosing a suitable option, examine photos of finished buildings.

What is in the roof of the metal: the structural elements

High performance characteristics of the metal roof can only be achieved with careful observance of the requirements of the installation work. We offer to meet structural design elements, their function and characteristics.

The base of the roof

As the base of the roof, the basic operational load sensing, act wall. Uniform distribution of the applied forces is provided by mauerlat - timberTo be placed directly on the wall of the house.

Loft or attic

Before installation should define the purpose of roof space. This can be an attic or loft. It depends on this kind of suits the roof. For the first embodiment sufficiently cold roof, consisting of a metal and waterproofing. Roof - suggests device thermal insulation cake.

truss system

From the strength characteristics and the geometric accuracy of performance of roof system depends on the life of the mounted roof of metal. Required calculation is performed taking into account the main elements of a subsequent load. metal or timber can be used for manufacturing the chassis.

For private homes we recommend to choose the second option. Especially if the installation work is scheduled to perform with his own hands. Wood is well processed by cutting and better meet environmental and regulatory requirements.

Comment

Mikhail Starostin

Team leader repair and construction company "Home Premium"

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"The slope of the roof should be more 14º.»

Sheathing and kontrobreshotka: step under the metal

As the base, for mounting metal used sheathing. wooden bars used for devices such sheathing or boards. They are placed across the predetermined distance - lathing step under the metal chosen taking into account geometrical parameters of roofing material. The elements of the flooring it should be mounted in places that exclude its deformation during operation.

To sheathing was able to withstand the operational load and the weight of the metal, it must:

• mounted in increments of 30-50 cm. The second strap is fastened with a short step to be able to properly secure the sheet metal;
• made of wooden elements treated flame retardants and antiseptic compositions;
• reinforced in places of fastening of the ridge profile, the valley and snow guard.

Comment

Mikhail Starostin

Team leader repair and construction company "Home Premium"

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«The smaller the angle of inclination of the roof, the more can be lathing step. "

Kontrobreshotka attached directly to the elements of the truss system. In most cases, used for its manufacturing timber the size of 50 × 50 mm².

Mounting sheathing can be seen in the following video:

Thermal insulation cake warm roof of metal

The apparatus thermal insulation cake is carried out in the following sequence:

• vapor barrier;
• lower sheathing forming the gap between the heater and vapor barrier;
• insulator;
• waterproofing layer:
• sheathing;
• kontrobreshotka;
• metal.

The type and characteristics of the thermal insulator are selected taking into account the climatic conditions in a particular region and the characteristics of the building. Typically, the thickness of at least 15 cm. More often than not, the choice is made in favor of the extruded Styrofoam, Basalt and glass wool, expanded clay and foam.

metal

This type of roofing material is a sheet 0.45-0.5 mm thick, which is coated with a protective and decorative functions. As a basis, most often a steel flat products. However, manufacturers are offering material on a copper and aluminum base.

The characteristics of the protective coating may vary. Choice can be made between the zinc and alyumotsinkovym. The second type is preferable, since it allows to provide a higher level of protection, but will cost much more expensive.

Attention! Available colors will pick up metal roofing with the desired shade.

Protective and decorative covering can be:

• polyester. The most common type, thanks to an affordable price. May be glossy (PE) and matte (MPE) surface composed of administering a quantity of Teflon. Differing resistance to UV and corrosion, bad resist mechanical stress, and therefore, it is not the best option for regions with heavy snowfalls;
• Plastisol (PVC), Which is based on PVC. At a low resistance to UV light, good resistance to external influences;
• pural with a basis of polyurethane and a number of polymers. Manufacturers offer a matte (MatPUR) and high gloss (PUR) products. A long service life;
• polidiftorid. the coated substrate is polyvinyl fluoride, to which is added a certain amount of acrylic. Good resistance to external shocks due to the increased flexibility. Presented in a variety of colors. With long service life is the highest cost.

View Profile metal is important. The geometry of the sheet influences its operational load. If the wind loads in the region are large enough, the choice is made in favor of the material with a wave height of more than 50 mm, having the highest stiffness. The normal procedure is to choose metal roofing with a small wave.

Attention! Sheets differ not only in size but also on the configuration. The wave can be symmetrical and asymmetrical.

Additional elements of metal roofing

Extend the service life of the roof of metal and give it a finished appearance to help additional elements. They may have various sizes and configurations, ensuring a tight abutment elements of the system and making its operation more safe and convenient. We offer to meet with them.

Horse and flagon

Horse used to protect the metal on the ridge and the outer roof fractures from external adverse factors. The product can be flat and semi-circular, which allows you to choose the best option for a particular roof. In the presence of the ridge there is no fear that in the roof space falls moisture or dirt, and metal sheet picks with a strong gust of wind.

valley strips can be upper and lower. The first type is used when you need to close the fractures on the inside of the roof sections of roofing material. Lower - helps prevent moisture from entering under the roof due to the timely removal of excess water from the junction of two stingrays.

Wind strip: end and curtain

Wind strap represents Area performing a decorative and protective function. For its manufacture uses the same material as that for the metal itself. Maybe it ends and eaves.

Edge strip prevents moisture on the extreme elements of the roof, and also reduces the amount of wind load. In the presence of eaves strap manages direct rainwater flows in the gutter, thus protecting the frontal sheathing boards and base from excessive moisture.

Enclosing and snow stop elements

The need for protecting cells occurs when the structure height exceeds 7 m. When present, people can avoid falling off the roof. Are attached to the crate through the metal roofing.

In terms of safe operation of the roof, it is a mandatory installation of snow guards. These additional elements to help prevent a sharp drop in the big snow volume, thereby protecting bystanders from injuries, and drainage system from excessive snow loads. May be:

• tubular. Suggest the presence of two tubes and brackets. Used for manufacturing galvanized steel, which can be applied to the polymeric coating in the color of metal;
• leaf. A more economical alternative. For manufacturing a bent sheet member is used.

Design features of the main components of the roof of metal

Some sites require special clearance. In order not to disturb the technology works, we suggest to familiarize with design features.

Cornice

Curtain system is used to drain rainfall from the walls of the house. Overhang is mounted so that between its extreme point and the wall was 0.4-1.5 m. It can be part of the elongated roof system or generated separately using 40 thick boards mm.

contiguity places

The roof of town houses, most often, is forward and backward bends. Straight closed by forward extension of the sheet metal, or by use of coupling elements. desired effect is achieved by means of a sealing layer.

If the reverse bend in the strap abutting used as a coupling element to a wall or pipe. She placed closer to the bottom of the slope with a layer of sealant.

Ventilation and communicating elements

Proper installation of antennas, ducts and a number of other elements is performed using:

• ventilation issue. For good ventilation is mounted in each the span trusses. If there neuteplonnogo triangle directly under the roof, you can use one output to 50 m². Mounted on screws the opening in the metal tile;
• sewage outlet, compatibilizing with the riser by means of corrugated pipe;
• release for antennas and electrical cables.

Attention! docking sites require mandatory sealing.

The order and installation of the roof of metal technology

The order of assembly work depends on the type of system selected. We offer the features and meet the installation work order at the device of the cold and warm roof.

thermal insulation

Installation work is performed in the following sequence:

Illustration	Procedure
	Starting at the bottom, to the rafter system, by means of staples, attached waterproofing material. Its lower edge should go on dropping the bar. Waterproofing should sag 2-2.5 cm. Subsequent layers are laid with overlaps of at least 15 cm, and the connection point is sealed by a special tape. For attaching the membrane to drip use stainless or galvanized screws.
	Set kontrobreshotki bar. In most cases, for this purpose, section bars of 50 × 50 mm². They nailed directly to the elements of the truss system with nails. Leave gaps between the bars, placing them in a checkerboard pattern.
	By kontrobreshotke a predetermined pitch is secured sheathing. Fasteners used must be galvanized or stainless steel, and three times the length of the slats. Overlapping stack of metal sheets
	Install eaves lath. Starting at the bottom, mounted metal roofing. Reliability for fixing, fastening in the first row is performed in each wave.

warm roof

If you decide to equip mansard roofIt requires the installation of a warm roof. Detailed instructions are provided in the following video:

How to properly care for the coating of metal roofs: editorial recommendations

To form the roof lasts long enough, it is necessary to care for her properly. To the list of the main works should include:

1. Clear snow. 10 cm thick layer can already be considered excessive. In the presence of tubular snow guard, to remove excess snow tube is removed from the bracket;
2. scavengery. Each year, the roof should remove the organic debris. Typically, this is done by hand in rubber shoes. You can use soft brushes.
3. Removing contamination. Typically, all the accumulated dirt is washed off by the rain, but if desired, the roof can be washed.
4. Checking and fixing broach. Control the degree of tightening of screws is recommended to carry out every year. Their attenuation can cause the appearance of water in the roof space.

Share your opinion in the comments of the roof of metal, whether you like the look of this roof and its performance.