Construction process technology

1. Prior to the dismantling of the roof, the following work must be performed:

a) the necessary fastening with temporary racks and girders of the attic floor, if the latter, due to dilapidation, threatens to collapse;

b) dismantling of television and radio antennas, radio broadcasting racks and other devices of communication lines;

d) dismantling provided by the project chimneys over the roof;

e) dismantling of electrical wiring and plumbing fixtures in the attic.

2. The dismantling of the steel roof begins with the removal of exposed pipes, firewall walls and other protruding parts, then dismantling the ordinary coating, grooves and cornice overhangs.

To disassemble the ordinary covering of the roof section, one of the standing folds is opened on the entire slope of the roof and, having disconnected the recumbent fold that fastens the picture with the sheets of the gutter, they lift the pictures with crowbars, turning them over to the next row. Then separate pictures are separated and lowered to the attic floor for further packaging and moving to the warehouse. The same is repeated with the pictures of the next row.

Standing folds are either cut or opened with a lapel hammer or crowbar, recumbent folds - with a roofing chisel. Before removing sheets or paintings, the clamps are separated from the crate.

3. Disassembly of the crate is carried out from the ridge to the parapet crate, and in the absence of the latter - to the formwork eaves overhang.

When disassembling the crate every 1.2-1.5 m along the length rafter legs leave one or two crates or boards under the recumbent folds.

The dismantling of the parapet lattice, the removal of the remaining roofing from the parapet lattice to the overhang, including trays and funnels, grooves and cornice overhangs, as well as the remaining parts of the lathing and formwork, is carried out from the level of the attic floor, after which the truss system is dismantled.

All disassembled material is placed in bags on the attic floor.

The crate and formwork are dismantled using a special crowbar.

4. Rafters are disassembled according to the principle of removing free-lying elements, having previously removed metal fasteners (brackets, etc.). When disassembling, use light scaffolding from inventory items.

5. The materials packaged from disassembly are lowered down using a tower crane to an on-site warehouse or for loading directly into vehicles for subsequent transportation to the central processing warehouse.

6. In the course of work, safety rules must be observed:

a) issue workers with soft non-slip shoes, safety belts indicating the places of their attachment;

b) it is necessary to install portable ladders on the roofs with a width of at least 30 cm with sewn-on strips for walking on the roof with a slope of more than 15 degrees;

c) do not leave cut sheets of roofing iron on the roof;

d) it is forbidden to dismantle the roof when the wind force is more than 12 m/s (6 points), thick fog, heavy rain, heavy snow and ice;

e) to pass through attic floors it is necessary to lay a shield flooring with a width of at least 0.5 m along the beams.

The scheme of organization of work on the grip and the dismantling of the eaves of the roof are shown in Fig. 7.1.


Work organization of workers

1. The composition of the link by profession and qualification (7 people):

Roofers Riggers Carpenters

3rd category - 1 2nd category - 2 4th category - 1

2nd digit - 2 3rd digit - 1 3rd digit - 1

2nd category - 1

2. The distribution of work between the performers: the roofer removes the openings of pipes and near them, firewall walls, covering the cornice overhang, opening or cutting vertical folds, disconnecting the clamp from the crate. The removal of roofing paintings is carried out by carpenters of the 3rd and 4th categories, and their laying in packages is carried out by a carpenter of the 2nd category and a rigger. The disassembly of the battens and rafters is carried out by carpenters of the 3rd and 4th categories, and the packaging and slinging of the disassembled elements is carried out by a carpenter of the 3rd category and a rigger.

The second rigger is located at the bottom for unslinging the lowered loads that are moved to the on-site warehouse or fed into transport.

The works are compiled in the volume of one capture.

Decking is one of the most affordable and economical materials for do-it-yourself roofing. The metal coating is successfully used by developers in the construction of private houses, verandas, terraces, gazebos, bathhouses and household buildings.

Features of working with a profiled sheet

Installation of a corrugated roof is carried out using a standard set of tools available even for novice craftsmen. Depending on the stage of construction being performed, you will need:

  • measuring kit - tape measure, coil of rope, level, pencil;
  • a set for working with materials - a knife or scissors for metal, a hammer, sealant (for ease of application you will need a gun), a construction stapler;
  • electrical equipment - a screwdriver, a drill with drills of the required diameter.

The profiled sheet is made of metal, so you will need special scissors or a jigsaw to cut it.

When working with a profiled sheet, it should be remembered that its polymer coating can only withstand cold processing. For the convenience of cutting this material, it is recommended to use a jigsaw and a hacksaw in addition to metal shears. It is impossible to cut corrugated board with a grinder with an abrasive wheel.

The metal parts of the coating will last longer if an anti-corrosion primer is applied to the cut points.

For fastening corrugated board to wooden base are used in the manufacture of which durable galvanized galvanized steel is added.

To fasten the corrugated sheet, a roofing screw with a sealed rubber gasket is used.

In addition, each fastener in the set comes with a rubber gasket, which ensures a tight connection of materials. With its help, metal sections are reliably protected from moisture, and wooden crates - from the process of decay.

Roofing screws are selected according to the following parameters:

  • depending on the height of the wave of the profiled sheet and the method of its fastening, products with a size of 4.8 × 35, 4.8 × 60 or 4.8 × 80 mm can be used;
  • parts must be treated with a layer of zinc with a thickness of at least 12 microns;
  • the composition of the metal should include a stabilizer that protects the material from aging due to exposure to ultraviolet rays;
  • the head of the screw must be covered powder paint layer not thinner than 50 microns;
  • it is necessary to distinguish between the purpose of sealed gaskets from different material: elastomeric is used when fastening a profiled sheet, aluminum - for mounting valleys.

Fasteners should be selected in the color of the polymer coating of the corrugated board.

When laying metal roofing, polyethylene or polyurethane foam seals can be used. They are attached to the crate, creating a layer under the corrugated board. The purpose of these materials is to reduce noise from precipitation, leaves and branches falling on metal sheets, as well as to improve thermal insulation and increase the operational life of the roof.

Under the profiled sheets on the roof, it is necessary to lay a polyethylene or polyurethane foam layer to protect the roof from birds and cold air currents

Both sides of the sealing sheet are covered with adhesive, and for ventilation it is provided with special holes. Thanks to the seal, it is possible to close the gaps formed between the profiled sheets and the main roof structure. Such installation will protect the roof from birds, insects and cold air currents.

Selection and installation of corrugated board

Due to the presence of stiffening ribs in the form of waves created by the method of cold profiling, sheet metal roofing perfectly copes with external loads. The low market price, the variety of color options and ease of installation make it possible to use this material both in industry and in the work of private developers.

The degree of strength and durability of the roof depends not only on the correct installation of corrugated board, but also on compliance with the assembly technology of the entire roof structure.

Calculation of materials for the installation of roofing

Depending on the roof chosen at the design stage, its shape can be rectangular, triangular or trapezoidal. To perform calculations, it is enough to apply simple formulas from a school geometry course. The total area of ​​​​the roofing surface is determined by adding the areas of all slopes. In addition, it is important to know the length of the remaining roof elements, which include:

  • ridge elements;
  • valley;
  • ribs;
  • adjoining structures;
  • eaves and end overhangs.

In addition to the main coating, quite a lot of special additional elements are used on the corrugated roof.

The width of the profiled sheet can be understood as:

  • full transverse dimension, which is usually 1180 mm;
  • useful or working width, which remains after deducting the margin for overlapping sheets (most often one wave). It is usually equal to 1100 mm.

During installation, you should operate only with the working parameters of the sheets.


For example, for a house measuring 3 * 5 m with two pitched roof and you will need the following parts:

  • sheets of corrugated board - 18 pcs.;
  • skate - 3 strips of 2 m;
  • ridge seal - 6 pcs. 2 m;
  • end plate - 7 pcs. 2 m;
  • cornice plank - 6 pcs. 2 m;
  • roofing screws - 200 pcs.

By performing simple calculations, you can not only quickly cope with the installation of roofing material, but also minimize the amount of its residue.

How to install corrugated board on the roof yourself

When buying corrugated board, do not forget to take the instructions for using the material.

Consider the sequence of installation of the roof using corrugated board.

The main points to consider when laying the coating

Depending on the shape of the roof slope, the place to start work is determined. On a rectangular slope, laying is allowed from any of the ends along the cornice line. When working with a trapezoidal or triangular roof, a laying option should be drawn up in advance, given that it is better to fix the first sheet in the center of the eaves line with further symmetrical installation of sheets on both sides of the slope.

On rectangular slopes, sheets of corrugated board are laid in a checkerboard pattern, starting from any edge

If a gutter system will be installed on the roof, then the corrugated board should hang down by 60 mm, but if the design does not involve drainage elements, then the overhang value is determined based on the sheet grade:

  • corrugated board NS-20 allows overhang up to 100 mm;
  • profiled sheets of grade S-44, NS-35 are laid with an overhang of 200–300 mm.

When attaching the first sheet, it is aligned from the end and the cornice of the roof. The following roofing elements, previously fastened along the longitudinal part, are aligned with the cornice structure and screwed to wooden crate. According to this scheme, all rows of coverage are laid.

Fastening of corrugated board at the junction of sheets is made in the upper wave, and in all other places - in the lower

When screwing in self-tapping screws, it should be remembered that the sheets located next to the eaves require reinforced fastening in increments of 30-40 cm. On the surface of the profiled sheet, self-tapping screws are placed at a distance of no more than 1 m in a checkerboard pattern. Longitudinal overlaps are fixed with self-tapping screws in the upper part of the profile with a step of 30–50 cm.

Consumption per 1 sheet of coating is about 7-8 self-tapping screws. The size of the overlap of the upper row of material on the lower one is determined based on the slope of the slope, and is usually 10–30 cm.

An alternative to a screwdriver when screwing screws can be a drill with a reverse function, the speed of which can be smoothly adjusted during operation.

Description of the main stages of work with corrugated board

The sequence of work depends on the type of roof being built. If it suits cold roof, then two main operations are performed:

  1. Creation of a waterproofing layer. The purpose of waterproofing is to prevent the negative impact of condensate formed in the under-roof space on the wooden parts of the structure. It is not difficult to choose the right material from a large number of options. During installation, it should be remembered that the film is attached to the crate before the installation of the roofing. The waterproofing sheet should sag slightly. It is important to make sure that the pitch of the lathing slats is even, where the corrugated board will be attached in the future.

    The waterproofing film is laid with a slight sag and fixed with the transverse rails of the counter-lattice

  2. Laying of a covering from a professional sheet. A reliable wooden flooring of 60 cm is being installed on both sides of the groove. At the same time, the boards are brought under the valley with an overlap and an indent of 20 cm from lower parts end planks. The bottom beam can be fixed with nails, but it will be possible to achieve its stable fastening only at the completion stage construction works. Next, a lower valley is installed with preliminary flanging or with an inflection of the upper valley ridge onto the roof ridge. During installation, it is important to check that the bar is brought under the ridge by 25 cm or more. It will not be superfluous to lay an additional seal between the valley and the coating sheets. When working with rectangular slopes, it is recommended to first install the end boards, which will greatly facilitate the subsequent location of the corrugated board.

    Sheets of corrugated board are laid after the design of all joints and junctions with the help of valleys

If the roof requires insulation, then the sequence installation work next:

  1. A vapor barrier film is laid on which the crate is mounted.

    The vapor barrier film is laid on the rafters and fixed with brackets

  2. A heat-insulating material is mounted between the rafters (it is recommended to choose a heater in the form of mats or plates). If multiple layers are required thermal insulation material it must be staggered so that there are no through gaps.

    Insulation plates must enter the space between the rafters with a noticeable interference

  3. A waterproofing film is laid on which the counter-lattice is fixed.
  4. Roofing material is installed.

    The device of a roofing pie assumes the obligatory presence of a ventilation gap to remove condensate that forms on the reverse side of the corrugated board

Video: do-it-yourself installation of corrugated board

Additional roof elements

When arranging a profiled roof with a gutter system, it is necessary to take care of the installation of all elements before the laying of the coating begins:

  1. Roof horse. On both sides of the slope, several additional boards are nailed to the crate at the location of the ridge. Two ventilation gaps should be provided in the ridge. waterproofing material cover the entire surface of the slope, leaving only a strip 10 cm wide to the ridge uncovered. To maintain normal ventilation, the corrugated board is placed with an indent of 5 cm from the ridge element. The ridge is fastened to self-tapping screws measuring 4.8 × 80 mm along the top of the profile every 30–40 cm. Plugs are placed from the ends of the ridge bar.

    The color of the ridge can be matched to the tone of the roofing

  2. End plank. The length of a standard product is 2 m, in the case of building up a plank, an overlap of 10–15 cm should be observed. Install the end plank so that at least one wave of the roofing sheet overlaps. For fasteners, self-tapping screws are used that connect the bar to the end board and profiled sheet.

    End strip protects the roofing from side wind

  3. Adjacency plank. Upon completion of the construction of the roof, adjoining strips are attached. The length of the parts is 2 m; when installing them, it is important to withstand an overlap of 20 cm. As fasteners self-tapping screws 4.8 × 19 mm with a pitch of 40 cm are used. For a high-quality abutment of the walls and the roofing end, a ridge seal is laid, and a longitudinal seal is mounted in the lateral junctions. If the roof slope is steep, then longitudinal laying is not required.

Video: fastening additional elements

Rules for filing a cornice with a profiled sheet

The design of the roof overhangs with metal sheets is carried out according to the following scheme:


Video: filing roof overhangs from a profiled sheet

Incorrect installation of corrugated board: causes of errors and ways to eliminate them

Among the main causes of errors in the construction of roofs from corrugated board are:

  • wrong choice of materials;
  • incorrect calculation of corrugated board;
  • non-compliance with the technology of work.

You can eliminate the shortcomings associated with the calculation of the material yourself, based on a number of rules:

  1. Be sure to measure the full roofing surface (for all slopes) immediately before purchasing building materials.
  2. Based on the data of two diagonal measurements of one slope, while the difference between the figures obtained should not exceed 2 cm.
  3. Choose the brand of profiled sheet depending on the area of ​​​​the roof. So, for a small roof, the S-18, 20, 21 brand will be optimal. Large surfaces are subject to significant loads, so the profiled sheet of the NS-35, 60 brand is suitable for them.
  4. Check the amount of overlap of the coating elements immediately before screwing in the screws.
  5. Lay the corrugated board against the wind to protect against penetration of rainwater and melted snow.

You can perform work to solve the problem of improper installation yourself:


Video: how to fix errors of incorrect installation of a profiled sheet

Dismantling the roof from corrugated board

It is quite simple to determine the sequence of work when disassembling the coating from profiled sheets - you need to remember the order of the stages of installation of the coating and do the opposite. First you need to remove the ridge trims, wind deflectors and other elements, and then remove the sheets of corrugated board. As for the tools, it all depends on the fasteners used. If the installation was carried out with self-tapping screws, then you should arm yourself with a screwdriver; when working with nails, it is enough to have a nail puller.

If the profiled sheet was nailed, a nail puller is required

Is it possible to repair a corrugated roof and how to do it

The scale of roofing repair is determined by the degree of damage. First of all, a thorough inspection of the roof is performed to identify the malfunction. If we are talking about such minor defects as leakage, metal damage by rust, mold, or the appearance of fistulas, then the roof repair scheme will be generally the same for all cases.

So, if, for example, a leakage of roofing material is detected, experts recommend checking the quality of the tightening of self-tapping screws with a rubber seal. If the installation of the roof was recently completed, then, as a rule, the fasteners should be tightened to troubleshoot.

For more serious defects, the following work is performed:

  1. Replacement of profiled sheets.
  2. Repair or installation of a new roof screed.
  3. Replacement of aprons at the junction of roofing elements, parapets, cornices.
  4. Installation of new funnels drainage system.

Often problems arise with constructive joints. Repair of scratches, small cracks in the roof can be carried out by soldering the defect or installing a special sealing tape, and to eliminate deep holes, patches from a special mastic are applied. If there are remnants of metal sheets, a part of the desired size can be cut out of them and welded over the damaged surface.

Sealing tape can be used to repair the roof in the event of a leak.

Repair of fistulas is carried out with the help of tow soaked in hot bitumen and a patch of the same mastic. To eliminate large defects, burlap or roofing material is used, from which a patch is cut 25–30 cm wider and longer than the size of the hole in the roofing. Initially, the area around the hole is thoroughly cleaned with a metal brush and soaked with hot bitumen. As soon as the surface dries, a burlap or a piece of roofing material treated with bituminous mastic is applied over it in several layers. Hot bitumen is poured on top of the patch.

Roofing from corrugated board has many advantages over other similar materials, but only with proper installation and timely repairs, it will decorate the house and protect its owners for many years.








By reading this article, you have useful information about the price of dismantling the roof per m 2, as well as about the features of working with various roofing coverings. This will help to correctly order the dismantling of the roof - at the lowest financial cost and with maximum material savings.

Sooner or later, the old roof needs to be replaced, which begins with the dismantling of the old roof. Source obustroeno.com

Technology of the dismantling process

This is a rather difficult and responsible job, so here you can not do without preparatory phase. First you need to remove all the wires and pipes located on the surface of the roofing. You should also get rid of all decorative elements, if any.

Important! If the roof attic type, then you definitely need to start with dismantling skylights.

Now you definitely need to prepare the tool necessary for the dismantling process, and you should also take care of the availability of insurance. For an accurate and reliable descent of materials from the roof, professionals recommend using a block transport system. It is inexpensive, but thanks to it, it is possible to reduce the amount of waste.

Removing a roof is not a safe process and requires good insurance. Source lomaem-spb.ru

dismantling and repair work of any complexity

Removing a roof with a soft or metal coating

Of the tools you will need a special ax and a cork cutter. Such devices are a must have for every roofing specialist.

Please note that bitumen can become very soft in the heat, so you should not dismantle the roof from soft materials at too high temperatures. Ideally, the day for such work should be chosen dry and calm. A roof made of roofing felt or other soft material is chopped with axes, and then rolled into rolls. Such a roof is not subject to reuse. Waterproofing should be removed carefully and with the expectation of its further operation.

The dismantling of the roof from profiled materials begins from those places where the coating is adjacent to chimneys or other structural elements. Then they remove the skate and get rid of the wind slats. The roofing sheets themselves are best detached in order from top to bottom. After the complete removal of sheet materials, you can proceed to the gutters. If they are disconnected correctly and carefully, then reuse is possible. Then it remains only to get rid of the metal profile.

When dismantling, you need a thorough approach with serious tools Source en.decorexpro.com

In order to disassemble the wooden frame, you can use a crowbar, a hammer, a chainsaw and a hacksaw. It is better to remove all supporting structures by working from the inside of the roof. It is possible to use scaffolding and scaffolding. This completes the dismantling of the old roof with a soft or metal coating.

On our website you can find contacts construction companies, which offer the service of completing the construction of turnkey unfinished houses. You can directly communicate with representatives by visiting the exhibition of houses "Low-Rise Country".

Dismantling of a roof from slate or seam covering

This procedure differs significantly in the technology of work from that described above. To begin with, it is worth noting that slate roof- the most common in Russia. That is why most often work is carried out to dismantle just such a coating. Any master can disassemble this species roofs in a few hours, because even novice roofers always have a wealth of experience with slate roofs.

Of the tools, it is worth having a chisel, crowbar, roofing hammer, as well as a chainsaw for dismantling wooden parts.

To dismantle the roof, you must first remove the ridge. This is followed by the removal of nails, followed by the removal of slate sheets from the seats. Construction Materials are detached neatly and stacked in piles. It is worth noting that the prices for the dismantling of a slate roof are small.

Slate sheets are carefully lowered from the "slide" Source remontik.org

Video description

You can learn more about dismantling the slate coating in an easy way and without loss of material by watching this video. A professional will talk about the features of the work and give useful advice:

When working with seam roofing, first of all, it is worth disconnecting sections or sheets adjacent to protrusions, for example, pipes. Also, if there are dormer windows, canopies or grooves, then you need to dismantle the materials around them first. On roofs with a restrictive grid, the roof covering should only be dismantled above it. The rest is already removed from the attic.

Prices for the dismantling of the roof

Let's figure out how much it costs to dismantle the roof. In the catalogs there are a huge number of names of works and types of roofing. Their prices vary and are based on the complexity of the procedures. Therefore, before ordering a roof disassembly, you should familiarize yourself with all the price offers in your city. Experts will measure, evaluate the complexity of the design, and based on the area and type of roof, calculate the cost of work. Prices will be indicated for Moscow and the Moscow region.

So, when dismantling the roof, the price per m 2 will be within 100 rubles. This includes slate, corrugated board, ondulin and other coatings.

Regardless of the type of roof covering, the price for dismantling will be approximately the same. Source byn.lonavuxe.ru.net

The same price (100 rubles per m 2) was set for cleaning the insulation.

For the same 100 rubles, you can order dismantling square meter crates. These works are not very difficult and do not require great skills in roofing. That is why the prices for them are lower than for other works.

The dismantling of a continuous roof covering will already cost 150 rubles per m 2. For the same price, specialists will carry out procedures for cleaning a soft roof.

Another thing is with the work on the dismantling of skylights. The price is per square meter - an average of 850 rubles, and per piece - about 1,500 rubles per window. Such work is characterized by increased complexity and requires experience. Therefore, the price for them is higher than for other events.

Mansard roof with windows will cost more Source salonbuduar.ru

Please note that the firm may raise the price due to the high complexity of the procedures. For example, dismantling a roof with very steep slopes will cost more than dismantling a flat roof of the same area.

Conclusion

Dismantling work must be carried out competently and accurately, as well as saving materials. Do not forget about safety, because the old building should not collapse on people or pets. That is why it is better to entrust the dismantling of the roof to professionals.

We all know that "to break is not to build". However, if you look at it, then the elimination of the roofing will not seem like a joke. The dismantling of any roof should be carried out according to clear requirements and extremely carefully so as not to destroy the surrounding objects and not accidentally injure yourself. What exactly will be the actions to remove the old coating depends on the reason for the dismantling and the type of material on the roof.

Why do you need roof removal?

Roof removal is the complete removal of old roofing material from the roof base. But there are times when it is necessary to disassemble the entire structure (for example, a sheathing on the rafters of pitched roofs).

Sometimes, during the dismantling of an obsolete coating, the analysis of the crate is also used.

This substitution applies if:


Dismantling proceeds in two cases:


The second situation is more the exception than the rule. It happens that individual parts of the house are very dense and do not collapse under the influence of massive demolition equipment. Therefore, they have to be disassembled into separate elements.

Video: Removing an old roll coating from a flat roof with a hand tool

Is it possible to replace the coating without dismantling

Quite often on a flat roof new roll material laid directly on the old coating.


 Laying roll covering over old material is commonly used as a cost savings during roof repairs.

Usually they do this when they want to speed up repair work and spend a minimum of finance on them. Therefore, after several such repairs, the roof is hidden under numerous layers of rolled roofing material.


 A large number of layers of roll coating on a flat roof over time turns into a problem with the flow of moisture between layers

And later, when such a complex coating begins to leak and retain moisture in different places between the layers, it takes a lot of effort to dismantle it.


 The dismantling of the old numerous layers of rolled roofing takes a lot of time and effort.

Therefore, it is much more reasonable to completely remove all old material and cover the surface with new material at the first major overhaul, and not put patches everywhere, waiting for new holes to appear nearby.


 The roof cutter helps and speeds up the work of removing the old rolled coating from flat roof

If nevertheless it is decided to lay on flat roof a new layer of roll coating on top of the old one, it is important to observe the following rules:

  • clean the surface of dirt and dry;
  • eliminate all bubbles (by cutting and gluing with mastic);
  • lay rolls from the bottom of the slope of a flat roof up and strictly across the slope (i.e., the panels should be located along the so-called eaves).

Video: laying a new coating on top of an old one with technology violations

What roof materials can be updated without dismantling

Those who decide to lay a new coating on a pitched roof directly on the old one, the author of the article advises to first check the strength of the rafters and battens. This is important, because with a double layer of roofing material, the pressure on the roof frame will increase significantly. To assess the condition of the supporting structure of the roof and battens, it is possible to dismantle from 0.5 to 1 m². On the reliability of elements wooden frame evidenced by the absence of rot and paths that insects drill into the wood. Damaged elements must be removed or reinforced by nailing additional wooden parts.

A new roofing may be installed on top of an old one if the following materials have been applied first:

  • roofing material (or other rolled soft material);
  • profiled sheets;
  • metal tile;
  • flat metal sheets;
  • slate.

 Ondulin is often mounted over time-spoiled slate

As the second finishing coating of the roof, it is better to take metal tiles, ondulin or corrugated board. Other materials will be too heavy and deform the roof.

Laying the finishing material on top of the old roofing is done step by step:


Video: installing a new metal roof on an old one

Do-it-yourself roof dismantling

Removal of any roof covering is carried out according to special technology. In dismantling, discipline must be adhered to, because the fall of materials down always threatens to damage other parts of the building or objects within walking distance.

Preparation for work and tools

To start removing roofing, you need to:

  • remove all communication devices;
  • remove pipes, pipelines.

For dismantling, you will need the following tools and fixtures:


You can also use specialized equipment that will help to dismantle soft roofing faster and better (electric roll roof cutter, stripper soft tiles and others).


 The electric cutter can be adjusted to a certain depth of cutting through the soft roll roof, which helps to quickly remove layers of the old coating from the base

Video: new technology - peeling off the old soft tile coating along with nails

If there is no special device for lowering materials from the roof to the ground, then a block system is installed. Its mechanism is assembled from:

  • thick support board - fixed on the roof so that the edge extends a meter beyond the boundaries of the roof surface;
  • blocks - fixed in the middle and end of the board;
  • rope - is carried through the blocks and clings to the board with its free end;
  • a flat board measuring 0.5x0.5 m (or more) is a mobile platform.

 Rope mechanism allows you to carefully remove, rather than throw off, old roofing materials from the roof

Further actions are determined by what material is to be removed from the roof.

Differences in dismantling different types of roofing

The process of disassembling each coating is specific.

Old slate is removed from the roof in a few steps:


In order for the nails to be pulled out faster and easier from the slate, it is worth doing this work together. One worker needs to stand in the attic and push the fasteners up with a hammer, and the other needs to be on the roof and pull them out.


 While one worker uses a nail puller, another pushes fasteners out of the attic with a hammer

The seam coating is removed as follows:


Proper dismantling of the seam cover begins with the area around pipes and other protruding parts. Continues in the location area dormer windows. And ends in the region of overhangs.

Metal profiled sheets are removed from the roof in a different way:


If it is necessary to remove soft material from the roof (for example, roofing material), they act as follows:

When it is required to remove an old vapor barrier or moisture-proof film, they act depending on what material they are dealing with.

The roofing material, which was used as a waterproofing agent, is pryed off with a spatula and torn off from the surface. The film or membrane material is removed by carefully pulling out the staples, because it can be reused. The bituminous coating is removed in combination with the jointing and disposed of.

The construction of rafters and battens is dismantled using a crowbar, an ax and an electric chain saw. At the same time, they are not on the roof, but in the attic. To remove elements located at a height of 1.5–3 m, a scaffold is created.


 Shed roof rafters are removed from the side of the attic

Dismantling truss system and crates are performed in 3 stages:

  1. At a distance of 0.5–1 m from the ceiling, several boards are torn off.
  2. Through the hole formed, the boards below are pulled out.
  3. Disassemble the upper part of the structure.

If the rafters are layered, then the metal parts are first removed, and then the rafters themselves are removed individually from the roof.


 Laminated rafters get rid of fasteners, after which they are simply lowered to the ground

When the supporting structure consists of hanging rafters, remove everything except every fifth board of the crate. These elements must remain in place until the very end, otherwise the trusses will collapse. The last wooden parts are removed one at a time when they are ready to transport the trusses with a crane.


 Racks and struts are removed first in a system with hanging rafters

Video: removing a soft roof with an electric cutter

The cost of dismantling with the involvement of professionals

To understand how much it will cost to dismantle a flat roof with the help of professionals, do the following:

  • according to the formula for the area of ​​\u200b\u200ba rectangle, find the area of ​​​​the roof;
  • find out how much it costs to dismantle 1 m² of roofing (including the removal of vapor barrier, insulation and other details);
  • this amount is multiplied by the area of ​​​​the roof.

Suppose we need to order the dismantling of a 300 m² roof made of metal tiles. Knowing that a truss system, a step lath, a counter lath, layers of heat, vapor and waterproofing are arranged under the roof finish, we calculate the approximate (minimum) cost of the work (see the table below):

  1. 150+50+80+15+46+40+40=421 rub./m²;
  2. 421*300=126300 rub.

Table: price for dismantling 1 m² of roof

Type of work measure Cost in rubles
Dismantling of a soft roof from bitumen 1 m² from 80
Complete disassembly of the roof (waterproofing coating, screed, insulation) from 170
Dismantling the truss system 150–500
Removing the seam roof 55–100
Dismantling of natural tiles 190
Dismantling shingles 50–120
Dismantling of metal tiles 50–121
Dismantling of a solid crate 90
Dismantling the step crate 80
Dismantling the counter-lattice 15
Dismantling the insulation 46
Dismantling the vapor barrier 40
Removing the waterproofing film 40
Dismantling of bituminous waterproofing 30
Dismantling the supporting battens 80
Dismantling the drainage system linear meter 100–150
Removing the binder 100–150
Removal of skylights PCS. 1000–1500

The dismantling of the roof, as well as the construction, is carried out according to clear instructions. Careless attitude to this process often results in damage to nearby buildings and serious harm to one's health.

A beautiful and durable roof crowns any building, and its arrangement completes the process of building a house. Competent choice of roofing materials and their correct installation on the roof are the key to safe and comfortable operation of any building.


 Dismantling.

Building renovation.

How much does it cost to dismantle and install a roof: replacement with a metal tile.

Replacement for corrugated board.

Many people wonder which is better, a roof replacement or a permanent renovation? Undoubtedly, from the point of view of budgeting, it is preferable to carefully patch it up. But as practice shows, constant minor repairs do not particularly contribute to improving the structure: it gradually wears out, and the cracks only multiply. More rational decision will be completely demolished.

Important! In fairness, it should be noted that the need to update arises not only for a problematic roof. A new roof is mounted, for example, when redevelopment or reconstruction of a house.

When is a new roof needed?

A fairly convincing argument for replacing the roof of a residential building or garage will be wet spot, which spreads along the ceiling during the rain, what to talk about dripping water from it.

An annual preventive inspection of the truss structure and roof will allow you to identify large-scale problems associated with repair work and develop, if necessary, a way to replace the roof with your own hands:

  • check the condition of the supporting structure, including the crate;

  • check the diagonal measurements, otherwise, due to violations in the rafter system, different overhangs will come out.

There are three possible options execution of repair work:

  • In case of serious damage to the thermal insulation, rafter system, holes in the flooring, we are dealing with the most difficult option. A complete reconstruction is needed here, since damage to the heat-insulating layer is more than enough to completely replace the roof insulation. A significant scale of work will increase the price. The cost of one square meter will be formed based on the total amount of expenses: dismantling, purchase and installation of new material.
  • If a fungus or rot on the crate has formed under the roof covering, then the frame will need to be repaired.

  • If a we are talking only about cracks in the roofing, and these damages affected the truss system, it is enough just to change the coating to a new one, for example, to replace soft roof on corrugated board.

Dismantling

The old slate coating is removed using a hammer and crowbar. If it is assumed that the sheets will be reused, then the work is carried out with the utmost care and without fail together. Otherwise, holes are punched in the places where the slate is attached to the crate, and it is simply thrown to the ground.

The coating of metal tiles, corrugated board or other material can be reused, so it is dismantled as carefully as possible.

Important information! If a new coating is planned to be laid on an updated frame, then almost any material can be used. If the supporting structure remains the same, then experts advise two materials as a new coating: metal tile or profiled sheet, since both the first and second materials will easily cover the flaws of the old coating.

Building renovation

During overhaul when, in addition to the building box, the roof structure is also being adjusted, it is necessary to dismantle the roof. If the repair of rooms under the roof is not yet planned, the roof is dismantled in parts, at the same time mounting a new one behind itself.

No one knows for sure that the weather will not fundamentally change its attitude. And in the current situation, protests are not at all desirable. The client must make sure that the company chosen to perform the work does a full range of procedures: dismantling and installation, because then it will be problematic to ask for responsibility for an accidental leak in the roof. And if the roof does collapse, only the customer will be responsible for this.

To similar repair work only specialists who know their business in the smallest details should be involved. As a rule, they have already established cooperation with suppliers, construction waste removal companies and the like, that is, they guarantee that the customer will not feel any discomfort, and will take an indirect part in the work. Only with a responsible approach to business can littering the territory be avoided. Also, very important point to ensure that workers follow safety regulations while working at height.

How much does it cost to dismantle and install a roof: replacement with a metal tile

When replacing a slate roof with a metal tile, basically, you need to rebuild the frame. Of course, after dismantling the slate covering, the rafters under it can be in excellent condition, but even in this case, a certain reconstruction is needed. It is worth considering that the slate is placed on one row of the crate, and the metal tile - on two. The second crate provides ventilation. Only in this case, water will not accumulate in the lower part of the metal tile.

  • Repair work begins with an inspection of the rafters. Having found areas eaten by bark beetles, or rot on wood, the building is either completely changed, or cleaned and treated with antiseptics.

  • Spread the waterproofing barrier and attach it to the rafter system using a construction stapler.

  • The bars are installed and the crate is stuffed perpendicular to the ridge, as a rule, with a section of 25 by 120. It will finally fix the waterproofing.

  • The cat-lattice is mounted, starting from the extreme beam of the same section. Then a cord is pulled diagonally, with the help of which the accuracy of the level is checked during the work.

  • Sheets of metal tiles are laid from right to left in full accordance with the locking system. The lower edges of the sheets protrude below the rafter legs by 70-100 millimeters. All protruding places are cut off by a grinder.

An example of calculating the cost of replacing a roof with a metal tile

Replacement with corrugated board

Today, many people prefer to replace slate with corrugated board. This choice has its advantages. profiled sheets:

  • it could be considered budget option roofing, with the exception of models that are covered with pural;
  • they are light in weight, so they do not need to strengthen the building system;
  • they can be mounted independently, in addition, the material reliably protects the roof from leakage;
  • much more durable than slate;
  • resistant to natural and mechanical influences.

Advice! It is recommended to replace a slate roof with corrugated board with a material that has a push of no more than 0.8 millimeters.

Installation diagram:

  • If possible, the slate coating is carefully dismantled, trying not to harm the rafters.

  • They inspect the roof for the replacement or repair of some parts of the supporting structure - rotten (rotten) are replaced, the tree is impregnated with antiseptic substances.

  • They arrange hydro- and vapor barrier: the film is overlapped with almost no tension.

  • As thermal insulation, rolled mineral wool or polystyrene foam plates are used.

  • The corrugated board is mounted with an overlap of 1-2 waves, starting from the end part. If the roof is flat, sealant replaces the overlaps.

  • For fastening the corrugated board, only self-tapping screws are used, which are equipped with rubber gaskets (valleys are an exception). This is necessary to prevent moisture from entering the structure. Self-tapping screws painted to match the color of the corrugated board do not differ from the surface of the roof.

  • Decking is noisier than slate. But sound insulation can be improved if the sheets are tightly fixed.

Advice! If, during the laying of the profiled sheet, an additional layer of soundproofing material is placed, then even heavy rain will not be heard in the room.

As for the question that interests the majority: “How much does it cost to dismantle and install a roof?”, The cost of dismantling works varies between 100-200 rubles. per sq. m., and the installation of a new roof depends on the number of operations.