Metal siding under a bar: selection rules and instructions for finishing the facade

Metal siding under a bar is one of the types of facing materials that allow you to completely change the appearance of the facade walls. It is used both during the renovation of old buildings and in the construction of new ones. For the price it is considered one of the cheapest ways to finish buildings, in terms of quality it meets the modern requirements of developers.

Metal siding under a bar: selection rules and instructions for finishing the facade

Metal siding under a bar

Metal siding under a bar: selection rules and instructions for finishing the facade

Decorating a house with metal siding under a bar

Advantages and disadvantages of metal siding

Like every material, siding has not only advantages, but also disadvantages. Let's start with the benefits.

  1. Low cost of installation work. The overall financial loss is much lower than with traditional facade wall finishing technologies. In addition, the time is significantly reduced.
  2. Manufacturability . With the correct calculation of the amount and adherence to the installation technology, the amount of unproductive waste tends to zero.

    During installation, there is no need to use complex tools and special equipment. Works can be performed by specialists of average qualification.

  3. Versatility . Metal siding under a bar can be used in all climatic zones of our country without exception.
  4. Easy to maintain.

    Mosses and lichens do not grow on the surface of the coatings, they are easily washed from dust with water from a garden hose.

  5. Durability. External coatings provide the original appearance of the facade walls for several decades. Innovative additives and new materials make them resistant to harsh UV rays.

Metal siding under a bar: selection rules and instructions for finishing the facade

Siding Panel

But there are also disadvantages.

The main ones are low mechanical strength and the impossibility of repair in case of mechanical damage. True, the indicators of physical strength largely depend on manufacturers, from which materials they make their products. Pay attention to this when choosing.

Metal siding under a bar: selection rules and instructions for finishing the facade

Metal siding

Important. In European countries, the thickness of the siding sheet metal can not be less than 0.

6mm, domestic and Chinese companies can make panels from sheet steel with a thickness of only 0.45mm. Hence the very low values ​​of mechanical strength.

Metal siding under a bar: selection rules and instructions for finishing the facade

Metal siding L-bar

When choosing products, look at the thickness of the zinc layer (it must be at least 40 μm), type and parameters of external coatings. For an easier selection, see the technical data for some exterior coatings.

Type of external polymer siding coating Service life subject to manufacturer's recommendations
Matt polyester PEMA 15-20 years
Glossy polyester PE 10-20 years
Plastisol PVC-200 At least 30 years old
PVDF PVDF At least 50 years old
Pural PURAL 25-30 years old

Metal siding under a bar: selection rules and instructions for finishing the facade

Timber siding, different shades

The operating time depends on the chemical composition and thickness of the coating material, the minimum allowable is at least 25 microns, but practitioners do not advise purchasing such siding for finishing residential buildings, they can only sheathe cheap outbuildings. Nobody wants to repeat the work on finishing the facades every 10-15 years; durable materials must have an outer coating thickness of at least 40 microns.

Metal siding under a bar: selection rules and instructions for finishing the facade

Siding of the Metal Profile company

Among the numerous manufacturers, inexperienced developers find it difficult to choose the best option. We invite you to familiarize yourself with a short list of the most famous and respectable domestic and import enterprises. This information is not final, but it will give an opportunity to roughly navigate the existing variety of companies.

Manufacturer's name Brief characteristics

Metal siding under a bar: selection rules and instructions for finishing the facade

Ruukki

One of the most famous companies in the world from Finland. The products fully meet European quality requirements and are maximally adapted to domestic conditions. Has been working in the metal profile market for over 50 years.

Metal siding under a bar: selection rules and instructions for finishing the facade

Alcoa

Some of the products are made of aluminum sheets, in terms of quality and durability comes first. The disadvantage is the high cost.

Company from America.

Metal siding under a bar: selection rules and instructions for finishing the facade

Corus Group

British and Dutch co-production, universal use ... Has a wide range of products, produces a full set of additional elements.

Metal siding under a bar: selection rules and instructions for finishing the facade

INSI

On the market of construction companies since 1992, has composed of 12 legal entities. One of the most famous domestic companies. The structure has a research department, which allows you to create your own patented technologies and materials.

Metal siding under a bar: selection rules and instructions for finishing the facade

SeverStal

Among the largest domestic companies, it produces widely range of sheet steel products. The production base has the most modern equipment; a system of continuous monitoring of technological operations has been introduced for quality control.

Metal siding under a bar: selection rules and instructions for finishing the facade

Grand Line

The largest domestic manufacturer of materials for low-rise and cottage construction ... It has 8 factories and has been operating for over ten years.

When purchasing siding, you need to buy additional materials.

Pre-count the quantity and range of products. During the installation of siding under the timber you will need:

  • starting and finishing strips. They have a special profile that allows you to securely fix the first and final panels on the crate. Eliminate the loss of elements due to wind loads;
  • docking strips. Allows making short pieces of material on the same line of the facade wall;
  • outside and inside corners.

    They are used for beautiful decoration of the corners of the cladding, they can have various linear dimensions;

  • slopes and sinks. They are used for finishing window openings.

Metal siding under a bar: selection rules and instructions for finishing the facade

Basic additional elements for the facade made of metal siding

Metal siding under a bar: selection rules and instructions for finishing the facade

Dimensions of additional elements

We strongly recommend purchasing basic and additional materials of the same manufacturer and of the same quality. After familiarizing yourself with the types of metal siding, you can proceed to the description of the instructions for its installation.

Prices for metal siding

Metal siding

Installation of metal siding under the timber

The technology of wall cladding with metal siding allows not only to significantly improve the appearance of buildings, but also to perform insulation at the same time.

All modern houses should be built taking into account the requirements of the new legislation to ensure regulatory heat losses. It is impossible to achieve such a result only by using traditional building materials; even in the middle zone of our country, the thickness of the walls made of wood should be at least 60 centimeters. Nobody, of course, installs such walls, and heat conservation is achieved through the use of mineral wool or foam insulation. But it is not only legislation that forces developers to take measures to insulate houses. Economic incentives work best.

The high and ever-increasing cost of energy is driving developers to reduce heat losses more efficiently than the most stringent laws. Siding is the final stage of finishing new and overhauled buildings after the installation of heaters.

Metal siding under a bar: selection rules and instructions for finishing the facade

Ventilation facade scheme with metal siding

Practical advice. When insulating old wooden houses, it is better to use rolled mineral wool rather than pressed. The fact is that the crowns have different diameters, which does not allow the pressed insulation to adhere tightly to the walls.

As a result, a natural draft appears in the gaps, significantly reducing the effectiveness of insulation. Rolled mineral wool copies the surface of the facade walls, adheres tightly to each crown and provides the maximum effect of insulation.

Metal siding under a bar: selection rules and instructions for finishing the facade

The photo shows varieties of rolled mineral wool for construction work

Prices for mineral wool

Mineral wool

We will assume that the walls are already insulated, the insulation is closed with a vapor-permeable membrane.

Metal siding under a bar: selection rules and instructions for finishing the facade

An example of a house wall insulated and closed with vapor barrier

For installation, you will need any tool for cutting metal panels (electric jigsaw, grinder or scissors for metal).

Metal siding under a bar: selection rules and instructions for finishing the facade

Scissors for metal

Cut off well flat sheets with scissors, and siding under the timber has a bent profile, which complicates the work.

But on the cut, the protective coatings are not lost, as happens after the grinder. Although it is not worth it to be especially upset that several millimeters of the protective layer burned out near the cut. The cut is hidden in the additional elements by about a centimeter, it is not affected by natural precipitation. Until in these places rust becomes noticeable, it will take more than a dozen years.

Metal siding under a bar: selection rules and instructions for finishing the facade

For cutting metal siding it is best to use a circular electric saw

The dimensions of the panels are removed with a tape measure, the spatial position is controlled by the level.

Individual panels and additional elements are fixed with self-tapping screws or studs approximately 1 cm long. It is more difficult to work with self-tapping screws, it is better to use them to fix the studs.

Step 1. Identifier with nomenclature and count the number of materials. Estimate the total length of the outer and inner corners, the number of starting profiles.

If you have to dock the panels, you need to purchase docking strips.

Metal siding under a bar: selection rules and instructions for finishing the facade

Docking strips

For finishing window and door openings you will need slopes to fix the hardware.

Metal siding under a bar: selection rules and instructions for finishing the facade

Perimeter strips for siding

Next, you need to focus on the option of making the lathing, and it can be:

  • metal . It is made of galvanized perforated thin-walled profile. Advantages - not afraid of moisture, it is possible to easily adjust the vertical position of the bearing elements.

    Disadvantages - relatively high cost. In addition, siding is attached to them only with self-tapping screws, which is much more difficult than ordinary studs;

    Metal siding under a bar: selection rules and instructions for finishing the facade

    Metal crate

  • wooden. Rails with dimensions of about 20 * 30 mm are used. The only drawback of this option is considered to be fragility, the tree is afraid of conditions of high humidity. But this is a misconception, there is a fairly effective natural ventilation between the cladding and siding, which solves the problems with high humidity.

    In addition, the facade wall trimmed with insulation does not allow much moisture to pass through. And the last thing. If you are very afraid of putrefactive processes, then saturate the wooden planks with any antiseptics - quickly, cheaply and effectively. We recommend using lumber for the manufacture of lathing, but the final choice is yours.

    Metal siding under a bar: selection rules and instructions for finishing the facade

    Diagram of the arrangement of wooden battens for siding

Step 2.

Check the position of the insulation battens, it's not too late to fix the mistakes. To check it is better to use an ordinary plumb line, this is the simplest and most accurate tool. If not, then check the level.If everything is okay, great. Now you can check how the old lathing is installed on the plane of the wall.

Pull the rope between the outermost slats.

Metal siding under a bar: selection rules and instructions for finishing the facade

Tightened rope to control the position of the battens, example

If there are uneven gaps between it and the surfaces of the battens, then during installation of the counter battens will have to correct the situation. To do this, prepare gaskets of various thicknesses, you can also use wooden wedges.

Metal siding under a bar: selection rules and instructions for finishing the facade

The photo shows shims for the crate for leveling the plane, example

Step 3. Installing the counter grill.

Siding and all elements will be fixed on it. Errors with the installation of the crate cannot be corrected, keep this in mind, carefully consider the work.

  1. Attach the two outermost slats. The distance between the rest will be the same as the distance between those already existing for heaters. The standard width of pressed mineral wool is approximately 60 cm and is considered optimal for siding.

    The panels have mounting slots along their entire length, which greatly facilitates the fixing process.

    Metal siding under a bar: selection rules and instructions for finishing the facade

    Fastening the counter-batten rail

  2. Pull the ropes between the outer battens and fasten all the remaining battens along them. If there are deviations, then use the prepared wedges to align the position. It is better to press the slats with wedges with self-tapping screws. The fact is that the nails spontaneously stretch a little due to changes in the linear parameters of the laths as a result of fluctuations in humidity.

    As a result, the contact pressure is weakened and the wedges can fall out.

    Metal siding under a bar: selection rules and instructions for finishing the facade

    Counter bars are installed. Everything is ready for the installation of siding

  3. Please note that there are platforms in the corners for attaching additional elements. Separately make battens around the perimeter of window and door openings. Work constantly with the level, the position of each batten must be checked.

    Of the total loss of time for finishing facade walls with metal siding under a bar, the time for arranging the lathing takes at least 25%. But the lost time comes back for the quick installation of the panels, they all fit correctly, you can fix it after the very first fitting.

Step 4. Install the corner planks on the facade walls. Special strips are attached near the doorways; they hide the places of siding cuts.

Check the vertical position at all times. You can trim windows later as needed.

Metal siding under a bar: selection rules and instructions for finishing the facade

An example of installing a subsystem without insulation. Racks are fixed with hangers

Metal siding under a bar: selection rules and instructions for finishing the facade

Tightened thread for checking the sheathing plane

Metal siding under a bar: selection rules and instructions for finishing the facade

Battens around the window

Metal siding under a bar: selection rules and instructions for finishing the facade

Leveling system

Step 5. Mark the lower horizontal starting point profile.

Check horizontality very carefully. As a rule, the starting profile is mounted immediately above the basement of the house.Please note that these profiles must be located in one horizontal line around the entire perimeter of the facade walls. The protruding ends of the slats must be cut off along the line broken off by a stretched rope with blue.

Step 6.

Screw on the horizontal starter strip, level and fix to the battens. Check the position again.

Step 7. Start installing the siding.

Metal siding under a bar: selection rules and instructions for finishing the facade

Correct transportation of metal siding

Metal siding under a bar: selection rules and instructions for finishing the facade

Unloading and storage.

The work is carried out together

Metal siding under a bar: selection rules and instructions for finishing the facade

Check the batch number, quantity and quality of the delivered material using the invoice

Hook the bottom bend onto the starting profile , lift it all the way and lean it against the wooden slats. Using the special holes on the siding, attach the element with small studs. Assemble the trim in the same way before the beginning of the window opening. If the length of the wall is longer than the length of the siding, use a docking bar to connect. It is fixed before the sheathing starts at a distance equal to the length of the siding.

Metal siding under a bar: selection rules and instructions for finishing the facade

Installation of horizontal panels

Practical advice. If you have experience in cutting panels, then you can cut several pieces at once with a grinder or an electric jigsaw, if there is no practice, then it is better for the first time to adjust each element in size separately.

Step 8. Install slopes and ebb tides on the windows. They are implemented together with siding, they are adjusted in size on the spot, do not forget to make a slope for the ebb.

It is advisable to seal the cracks in the joints with a high-quality sealant. Only necessarily of high quality, the bad one will peel off a little over time and all the water from the low tide will fall under the finish. Instead of benefit, you get harm.

Metal siding under a bar: selection rules and instructions for finishing the facade

Blank for low tide

Metal siding under a bar: selection rules and instructions for finishing the facade

Foaming

Metal siding under a bar: selection rules and instructions for finishing the facade

Installed low tide

Metal siding under a bar: selection rules and instructions for finishing the facade

Blank for upper slope

Metal siding under a bar: selection rules and instructions for finishing the facade

Blank for side slope

Metal siding under a bar: selection rules and instructions for finishing the facade

Installation of aquilon - lock for fixing slopes

Metal siding under a bar: selection rules and instructions for finishing the facade

Setting the upper slope

Metal siding under a bar: selection rules and instructions for finishing the facade

Setting the side slopes

Metal siding under a bar: selection rules and instructions for finishing the facade

Mounted slope

Insert the fixing in the middle of the existing technological holes of the panels, do not tighten too much. Individual elements should be able to move slightly during thermal expansions.

For the same purpose, leave a gap of several millimeters between the additional elements and the ends of the panels.

Metal siding under a bar: selection rules and instructions for finishing the facade

Siding panel set

Metal siding under a bar: selection rules and instructions for finishing the facade

Fitting metal siding around windows

Continue cladding the rest of the facade walls using the same procedure.

Metal siding under a bar: selection rules and instructions for finishing the facade

The process of installing metal siding

Do not forget to leave holes for ventilation of the space between the insulation and the metal panels. Otherwise, condensation will accumulate on the back of them, which will negatively affect all wooden structures.To ensure ventilation, do not cover the lower and upper slots on the walls with honey crate and insulation.

Metal siding under a bar: selection rules and instructions for finishing the facade

View of the house after completion of installation

Typical mistakes when installing metal siding

When completing the siding installation strips on vertical surfaces, an internal corner was used. Such situations happen when there are various architectural elements above the entrance group that require cladding. The last panel is not attached, but simply inserted. In winter, during strong winds, the installed structures can simply be torn off from the shallow installation groove. In these places, it is better to use wide profiles or trims, which allow the last panels to be firmly fixed.

If you really want to use the inner corners, then you need to make holes in the last panel, slightly raise the bar to access the screws and attach the elements to the crate at an angle. This fastening will prevent the panel from coming off. But keep in mind that during fastening according to the second option, the caps of the self-tapping screws will be visible, select them from stainless alloys.

Metal siding under a bar: selection rules and instructions for finishing the facade

Internal corner

To improve the appearance of facades, corners, connecting strips, slopes and ebbs are often used, and the siding itself under a light beam. As you know, a dark color absorbs more solar energy, the consequence is that it heats up more and expands more.

Metal siding under a bar: selection rules and instructions for finishing the facade

Dark slopes and lighter siding

If the elements are tightened too much during fastening, then a slight warping will inevitably appear, the corners will become wavy. This is very noticeable on a white background. When using additional elements of dark colors, be sure to provide for them the opportunity to move a little, carefully monitor the fastening force. It is better to let them have a slight wobble than to be strongly pinched. Swaying is completely imperceptible and does not reveal itself in any way during the operation of the building.

Check the correct fastening during installation.

Metal siding under a bar: selection rules and instructions for finishing the facade

Attaching the panels and the corner

Once the corners are set, try pulling them up and down, they should move. If not, look for places where you are held. And the last thing. Never forget to fasten the hardware in the middle of the longitudinal cuts, the metal should be able not only to increase in size in summer, but also to decrease in winter.

Metal siding under a bar: selection rules and instructions for finishing the facade

Fastening the siding panel and connector

The long outer and inner corners are butt-mounted. This is wrong, the craftsmen do not have sufficient experience in performing such work. For the correct connection of the two corners along the length, they are slightly cut, a special tongue is made and then the elements fit into each other. Carefully read the manufacturer's installation instructions, most of them give detailed descriptions of the connection methods. Correct connection not only looks beautiful, but also allows the two parts to move and thus compensate for changes in linear parameters.

Using the same algorithm, you need to connect the docking strips.

Metal siding under a bar: selection rules and instructions for finishing the facade

L-bar siding

In case of incorrect markings or carelessness during installation, there are cases when panels connected in a vertical docking profile , are not located on the same line, the discrepancy can reach a centimeter. This is a big marriage that is almost impossible to eliminate. The installation of metal panels is in many ways similar to the installation of plastic ones. But there is one significant difference.

If the plastic ones have landing grooves, due to which you can gradually align the position of the elements, then this cannot be done with metal ones. They are more dependent on the correct markings and the position of the first row. This is due to the fundamental difference between the locks between the individual panels. To minimize the chance of errors, sheathe walls in rows rather than short sections of trimmed siding.

Metal siding under a bar: selection rules and instructions for finishing the facade

Metal siding, imitation of timber

Metal siding under a bar: selection rules and instructions for finishing the facade

Decorating the house with siding under the timber

Metal siding under a bar: selection rules and instructions for finishing the facade

Metal siding under a bar in the cladding of the house

Video - Selection and installation of metal siding

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