Roofing work, despite its complexity, can be done independently. Most country houses and country houses covered with slate, which is available, but has a lot of weight. With the advent of lightweight and aesthetically attractive corrugated sheets on the market, slate roofs began to meet less and less often. Nowadays, building roofs are rarely covered from scratch with previously popular materials, but preference is given to light metal sheets with profile. If you are the owner of an already constructed building, then you will be interested in how to cover the roof with corrugated sheets after slate. This work is easy to do with your own hands, and the video will help you.
The work of replacing the roofing material is complicated by the fact that most often people already live in the house, so you need to act quickly. First of all, it is important to choose the right day for dismantling work, but you should not rely only on the advice of weather forecasters. Stock up on durable film or tarpaulin to waterproof the room. This will help avoid leaks during rainy periods and protect your living environment from getting wet.
You will need tools for dismantling:
Start disassembling from the ridge, and then dismantle the top row of slate. Carefully remove material from the roof using ropes and two guide bars. To control the descent of the sheets, hook them by the nail holes with hooks. If you have few helpers and there is a risk that you will not be able to completely replace the coating before the evening, dismantle first one slope, and then the other. Immediately after the slate, remove the sheathing. For corrugated sheeting, it should be arranged differently.
Corrugated sheeting can only be mounted on a perfectly flat surface. You can check the plane using the following method:
Repair the rafters based on the given plane. If the beam is severely damaged, it needs to be replaced. Otherwise, it is enough to align the rafters using edged boards.
Next, waterproofing material is laid on the rafters. Place it from the bottom to the ridge. Use a furniture stapler to nail the material to the rafters so that it does not move. Don't pull waterproofing film, it should sag slightly to increase the area of the ventilated space. Two sheets of waterproofing must be laid strictly overlapping, otherwise leaks are possible.
Start installing the sheathing with a support beam, which is attached along the entire length of the rafters. If you do not have a beam of suitable length, make a structure from scraps of 1-1.5 meters. Next, from the eaves to the ridge, install a transverse sheathing made of edged shalevka measuring 2.5 by 15 centimeters. A distance of 30 centimeters must be maintained between the boards, and the first and last parts of the sheathing should be located at the ridge and edge of the roof. The proposed option is suitable for the most common corrugated sheet C21. For sheets of other brands, other methods of lathing installation are used.
After you have repaired the rafters and new sheathing of one slope, you can move on to the other. Installing corrugated sheets in place is not so difficult. To do this, you will need to have a screwdriver and special screws with washers. If you do the work yourself, the following tips will help you:
On square meter The material should be from 6 to 8 fasteners. Screws for corrugated sheets are equipped with special press washers, which must be monitored when screwing in. The steel sheet should be pressed against the sheathing, but the washer disc should not be deformed.
After assembling the roof, install the wind corners and ridge.
These elements will need to be replaced with new ones that are lighter and match the color of the roof covering. The ridge is secured with long drills with press washers, which are able to reach the beam and be firmly anchored in it.
There are no articles on the topic.
Several decades ago, slate was considered the most popular and practical roofing material for many private houses. industrial facilities still have a similar roof.
Today, many people prefer to replace outdated material with more modern and convenient ones.
In this article we will talk about the features of roof replacement.
Invented at the beginning of the last century asbestos cement sheet for that time it was considered the most revolutionary and impeccable material. The roofers were confident that by making a roof, they would provide reliable protection forever homes.
With all their advantages, slate sheets had one, but very significant drawback.
The weight of such a roof was very significant and required the installation of beams and other load-bearing elements with special care. Massive logs and beams or metal bases were used.
Slate roofing
Today, the positions of yesterday's sales leader are being pushed back. Innovative, strong, durable and lightweight roofing materials have appeared.
We can say that andulin is more actively used by builders at present.
It is necessary to have a good understanding of roof installation technology in order to independently replace the outdated covering. If you are not confident in your abilities, it is better to attract proven, well-trained professionals who can give useful advice on the installation and modification of the roof.
Help: In order to make the structure as light as possible and examine the system of rafters and beams, it is necessary to remove the obsolete roofing material.
Some owners believe that it is possible to cover old slate new material and thus make the roof more reliable, while it is assumed that savings can be made on sound insulation.
Important! This approach is fundamentally wrong. You load the structure with a weight that was not provided for in the design, and in winter, during heavy snowfalls, the roof may not be able to withstand the additional load. It is necessary to remove the old asbestos-cement material and replace it with a new, more durable and convenient one.
The first step to begin removing outdated and worn-out slate is to carefully familiarize yourself with the nearest weather forecast. We need to make sure that there is no heavy rain in the coming days.
Important! Even after making sure that weather forecasters guarantee clear, dry weather in the coming weeks, stock up on film and, just in case, cover the attic with waterproof protection.
The main tools when replacing a roof are
This simple kit is needed for safe work when removing and lowering old slate roofing sheets. The order of work is the reverse of installation, that is, you need to start by dismantling the ridge and the top row of slate, gradually going down until the old covering is completely removed.
The sheathing should remain completely bare so that you can verify its integrity and, if necessary, replace failed segments of the structure.
Pulling out nails is carried out using a regular nail puller, under which, for convenience, a small wooden block or a piece of board.
To lower the slate, special hooks should be inserted into the holes left by the nails and placed for better sliding. wooden beams. You need to remember that shooting with ropes alone is much more dangerous.
Removing the entire mass of the old roof is not rational, because if you cannot immediately lay new material, then no matter what forecast the weather forecasters guarantee, there is always a chance of unexpected precipitation.
Help: Break upcoming work into stages.
Remove the slate from one slope and lay new corrugated sheeting. This will eliminate weather-related surprises.
To install profile sheets you will need an impeccable, Smooth surface, therefore it follows Special attention pay attention to the quality of old rafters.
It is necessary to check to what extent the design has retained its performance qualities: it meets the requirements for reliability and safety. Make sure that all beams do not have cracks and are not attacked by insect pests (bark beetles, longhorned beetles and lumberjacks, wood borers and house borers).
If necessary wooden structures must be replaced and treated with products to prevent the penetration of insects - pests, mold and fungi.
Checking for a level surface:
After this, you can use the outer rafters as beacons and conduct an audit of the entire structure.
To level out defects, you can use an edged board, and elements that have become completely unusable must be replaced, not forgetting to pre-treat them with a special compound.
A couple of people with minimal experience in construction work can quickly handle the repair.
Conclusion: Independent inspection and repair of the rafter system will save significant funds on materials and payments, which are expected when completely replacing this important roofing unit.
The answer is obvious - it is necessary. For more details see
Laying it down. The membrane is attached horizontally in relation to the rafters. You need to start from the bottom and overlap the work to prevent leakage. The material is fastened using a construction stapler.
Help: There is no need to tighten the membrane too much, let it sag a little, this will ensure good ventilation under-roof space.
Installation is underway at the same time; if this is not done, it will be impossible to get onto the roof without damaging the waterproofing.
The stages of work are no different from installing structures for other types of roofing materials.
The only difference will be the choice of brand and wave of profile sheets. The pitch of the sheathing boards depends on the brand of materials used.
Set of tools for laying corrugated sheets
To carry out quality work, you must have on hand:
The sheets are lifted along bars or boards; several holes for hooks can be made in the outer wave. You just need to make sure that they overlap later
Previously the most popular roofing material was considered slate. But the weight of this covering is significant, so it was necessary to equip a fairly powerful load-bearing rafter system. With the advent of modern and lightweight roofing coverings Many owners began to replace slate with other roofing materials. In our article we will look at how slate is replaced with corrugated board. To properly replace an outdated coating, you need to know some of the features and nuances of this process.
The professional sheet has the following advantages:
Important! A roof made of profiled metal needs good sound insulation if the space under the roof is used as a living space.
Before covering the roof with corrugated sheeting, it is necessary to dismantle the previous covering. It is important to start doing this on days when rain is not expected. It is equally important to do this in virtually windless weather. But even if weather forecasts promise dry, windless weather, it is better to stock up on film, which you can use to close the attic space just in case.
When removing slate covering you will need the following materials and tools:
You will need all these materials to effectively and safely dismantle and lower the old roof covering. We carry out the work in the reverse order of installation, that is, dismantling the covering must begin from the ridge. Next, they begin to remove the top rows of slate. This is how all the rows are removed sequentially, reaching the eaves overhang. Roofing nails are removed with a nail puller, under which a wooden block or piece of board is placed for ease of work. When the sheathing is completely exposed, it is inspected and, if necessary, the exposed and rotten sections of the structure are replaced.
To lower slate from the roof with your own hands, use the holes in the material that are left after the roofing nails. Hooks are inserted into these holes, and wooden blocks are placed under them to facilitate sliding.
Attention! Lowering slate sheets on ropes alone without using hooks is much more dangerous.
It is better to replace slate with corrugated sheets not on the entire roof at once, but in separate sections. For example, you can first dismantle the slate from one slope and lay profiled flooring on it, and then carry out the work on the other slope. This way you will be insured against weather surprises.
If the roof is being replaced, then before doing so it is necessary to check the integrity and condition of the old rafter system. It is important that the rafter system meets the requirements of reliability and safety. Everything needs to be inspected rafter legs. They should not show signs of damage by insects, cracks or rotten areas.
If worn rafters are identified, they must be replaced with new elements that have been treated with antiseptic impregnations and fire retardants. Before replacing the slate with a new coating, you need to check the evenness of the slopes. To do this, do the following:
Small unevenness in the roof can be leveled using edged boards. And those elements that are completely worn out are replaced with new ones, treated with special compounds. You can inspect and repair the roof truss system yourself if you have minimal experience in the field of construction and repair.
It is necessary to completely dismantle the sheathing if the old waterproofing has become unusable. The waterproofing mat is attached directly to rafter system using a stapler. Stripes waterproofing material rolled out and laid across the direction of the rafters and fastened with an overlap of 10-15 cm.
Advice: to ensure good ventilation of the under-roof space, you need to lay the waterproofing carpet not stretched, but with a slight sag.
To install a metal profile, you need to stock up on the following tools and materials:
The roof is covered with corrugated sheets, lifting it along specially laid boards or bars. To make climbing easier, you can drill a couple of holes in the outer wave for the rope. It is important to choose a location for the holes that will then be covered by the wave of the top sheet.
Important: when transporting the corrugated sheet, try not to damage the polymer layer, as this will contribute to corrosion of the coating.
Installation is carried out in compliance with the following rules:
The crown of any building is the roof, and how reliably it is protected from external factors, depends on the safety of the entire building as a whole.
That's all today large quantity people who have started renovations at their dacha try to re-roof themselves, thereby saving their money.
Recently, expensive materials that have traditionally been used to protect roofs have been successfully competing with corrugated sheets. Its advantage is that, in addition to quality, beauty and reliability, it allows you to cover the roof without the help of professionals. If you decide to do it yourself, read this article carefully.
Before you start working, you need to figure out what material you are talking about we're talking about. Corrugated sheet is a galvanized steel sheet with or without polymer coating. Main it distinguishing feature– the presence of a profile that gives this material lateral rigidity. Covering the roof with corrugated sheeting makes it possible to lighten the structure as a whole, since it is light in weight. Thanks to all the above features, this option is considered the most economical.
Overlapping work includes several stages:
- choice of corrugated sheets;
- taking measurements;
- transportation;
- selection of necessary tools;
- roof preparation;
- installation of corrugated sheets.
How to choose corrugated roofing sheeting for roofing?
Structure of a corrugated sheet. The height of the roofing sheet must be more than 21 mm.
- Marking of profile sheet. There are many different markings, but for roofing works It is recommended to use corrugated sheeting marked H, with a height of at least 20 mm. It is important to remember that the numbers following the marking letter indicate the wave height and usable width. The choice of profile depends on the planned roof structure. The rule here is that the larger the number, the lower the grade of corrugated sheeting should be. In addition, it is worth finding out which standard was used in the manufacture of the profile flooring: TU or GOST. Compliance with the latter indicates more high quality material. Inquire about the availability of a certificate.
- Appearance of the profile sheet. The surface of the profile must be smooth; the presence of cracks or roughness indicates low quality of the product. If the corrugated sheet is made in color, peeling of the paint is not allowed. Check the profile sheet for strength; if it bends easily and breaks, you should refuse such a purchase.
- A high-quality sheet after bending easily returns to its original form.
- Price. It depends on three indicators: sheet thickness, type of polymer coating and pricing policy sellers. Sometimes it makes sense to compare prices for the same type of corrugated sheeting from different manufacturers and choose the one that suits you best.
- Profiled sheet covering. To give the material additional properties, for example, corrosion resistance, it is coated with zinc. The more aggressive environment and the longer the period of use, the thicker the coating layer should be. To add aesthetic appeal to the material, use polymer coatings various colors. Here you should focus on your own taste and the exterior of the house.
How to take measurements for covering a roof with corrugated sheeting?
- Before you start covering the roof with corrugated sheets, you need to carefully measure and adjust its components.
- Before installing the truss, you need to measure again roofing slopes, since the project may undergo changes during implementation.
- Before that, you need to make sure that the stingrays have rectangular shape, to do this, measure the length of the diagonals of the slopes, the permissible difference is 2 cm.
- You should definitely check the plane of the slopes using a level with a cord. Permissible deviations are 5 mm per 5 m. If the indicator is larger, it will not be possible to join the sheets.
Transportation of corrugated sheets
Despite its strength, if improperly loaded and transported, profile sheets may become deformed. Therefore, when going for corrugated sheeting, consider the following points:
- The material should be loaded onto a strong, solid base, such as wooden joists, which should be longer than the sheets.
- To avoid friction of corrugated sheets during transportation, they need to be reinforced with slings.
- The vehicle speed should not exceed 80 km/h.
- Unloading should also be done with caution; it is better to involve two people for this purpose, since dragging or bending the corrugated sheet is prohibited.
- The process of lifting sheets for mounting is also fraught with certain difficulties, since lifting needs to be done only one sheet at a time, stretched from the ground wooden joists. To do this, you need to involve at least 3 people. In windy weather, the material should not be lifted because it can easily be damaged.
To cover the roof with corrugated sheets, you will need the following tools:
Tools for installing corrugated sheets: 1 – screwdriver or drill; 2 – hammer; 3 – rubber hammer (mallet); 4 – brush with soft bristles; 5 – roulette; 6 – long rail; 7 – marker (carpenter’s pencil); 8 – level; 9 – tool for cutting metal tiles (metal scissors); 10 – round nose pliers.
- the choice of shears for cutting depends on the thickness of the selected material: for corrugated steel sheets with a thickness of 0.6 mm, use expanded shears, for steel of the same thickness - lever shears, for steel up to 1.2 mm, electric expanded shears are suitable;
- drill;
- gun for distributing sealant;
- rivet pliers;
- knife for cutting insulation;
- staples and a gun for them to secure hydro- and vapor barrier layers;
- template for marking the sheathing pitch;
- wire cutters;
- screwdriver;
- marker;
- roulette;
- long rail;
- hammer;
- cord.
Roof preparation
We are talking about installing sheathing, which is an integral element of the roof structure, helping the roof to withstand heavy loads and properly distribute weight. In addition, it performs the following tasks:
- Allows installation as quickly as possible, thanks to fastening the panels to the rails with brackets.
- Prevents the appearance of fungus and mold even without additional protection.
Most often, the sheathing for private houses is made of wood, since the angle of inclination is large and this reduces the load on the roof.
Covering the roof with corrugated sheeting
After the sheathing has been made, corrugated sheeting is installed on it. Its use is recommended for slopes no longer than 12 m.
It is important to remember that the determining factor when choosing the size of the horizontal overlap is the angle of inclination of the roof:
- if the angle of inclination does not exceed 15°, then the overlap should be more than 20 cm;
- if the angle of inclination varies from 15° to 30°, an overlap of 15-20 cm is needed;
- if the angle of inclination is more than 30°, it is enough to overlap by 10-15 cm.
Scheme of a roofing pie made of corrugated sheets for a roof under which there are residential and non-residential premises.
- Using a screwdriver with self-tapping screws for roofing in a wave deflection, the profiled sheets are attached to the sheathing. In this case, galvanized self-tapping screws 4.8 × 0.38 with rubber sealing washers are used. The approximate consumption of screws is 6 units. /1m².
- At the bottom and top of the slope, self-tapping screws need to be screwed into the bottom wave, and along the middle of the sheet - into each sheathing board.
- To fasten the sheets, self-tapping screws or rivets are mounted in the upper bend of the profile with a step distance of 0.5 m.
- To install the last sheet on the end of the roof, use a large overlap or cut along the slab to obtain the required size.
- The overlap of the end strip is at least 5 cm. The end strip is attached to the sheet every 30 cm so that it overlaps its first wave.
- Before assembling the roofing sheets, they are strengthened with self-tapping screws cornice strip overlap 10 cm. The approximate pitch when screwing is 30 cm.
- For internal joints, corrugated sheeting with a smooth surface is used. The roof under the joint must be covered with durable flooring. The gap that the corrugated sheet forms with the internal joint must be sealed with a sealant. The joint on the ridge is secured with nails, in the deflections - with screws, observing a step of 30 cm. At the joining point at the ridge, the end side of the profiled sheet is placed under the ridge strip, which is carefully compacted.
- The planks are laid with an overlap of 10 cm, they are secured every 30 cm with self-tapping screws or self-tapping screws.
The roof covering with corrugated sheets has been completed.
