Features of the device of a soft roof

The device of a soft roof means installation of flexible finish materials. For example, bitumen shingles, on top of the crate.

Also used for stacking is a rather large number of varieties of roll material and membranes.

When choosing materials, pay attention first to heat resistance, then to - mechanical strength, flexibility and elasticity.

It should be noted that the number of indicators for roll products is lower than for soft shingles.

Among the main advantages of materials of this kind are high corrosion resistance, durability, water resistance, additional heat and sound insulation.

Also flexible roofs are convenient in that for the laying of the cover it is not necessary to call the master - the soft roof type device allows you to do everything yourself.

However, please note that the listed advantages are soft roofs from proven manufacturers such as TechnoNICOL or TechnoKrov.

Below we will consider the most common kinds of soft materials for laying on the roof, but first - we will stop at the construction of the roof itself( roofing pie).

What does the right roofing cake consist of?

First, we will disassemble the device of the roofing cake. This term is used to refer to all layers of materials used in the construction of the roof.

There are two main types of pie under soft covers, namely, for the installation of insulated and cold roofing.

The difference lies in the fact that for the roof of the first type the main unit is supplemented with a heater, as well as a vent channel, necessary for ventilation of the roof space.

Accordingly, the device of a "warm" pie is more complex and consists of more elements.

The most common design includes:

• rafters( carrier system);
• hydraulic barrier;
• counter brushes;
• crate;
• OSB plates( solid layer at least 10 mm thick, going after the battens);
• backing layer;
• bituminous( soft) tiles;
• insulation with polypropylene twine;
• steam barrier;
• rough crate.

Sometimes an additional beam is installed across the rafters.

In most cases, this is due to the need to improve the reliability, durability and efficiency of roof insulation.

For soft and slate roofs, different types of crate are used - in our case it is preferable to use a continuous one.

There are several basic rules for installing the underframe under a soft coating:

• in roofs with a slope of 5-10 ° for the creation of a crate, a continuous flooring of plywood or boards with a pitch of 45 mm is used;
• if the angle of inclination is 10-15 ° - a bar approx. 45 x 50 mm, plywood;
• if the ramp is greater than 15 ° - the previous condition is necessary, but the step is increased to 600 mm;
• in the areas of overlapping and abutments uses an additional beam.

As a rule, it is enough for the step of the battens to be 100 mm. The solid layer must be securely fastened to the boards.

Please note that the density of the battens must correspond to the loads on the roof.

The design of a pie for a cold roof is simpler.

It can only consist of rafters, crates, OSB boards or plywood, lining carpet.

The construction is completed directly with soft roofing material.

The device of an unheated cake makes sense in the event that the house will live only in the summer. In this case, this is the norm.

The task of such a pie is to isolate the attic from the condensate, and also to allow moisture to escape outside. In this case, it is important not to disturb the microcirculation of the air.

For this purpose, a special waterproofing film with micro perforation must be placed, but be careful when mounting the joints.

Features and installation of roll materials

One of the most popular roofing materials from this category can be called ordinary roofing felt, since it is the most inexpensive and simple in terms of laying, and even the areas of junctions usually do not cause difficulties.

The technology of roofing material production involves the use of roofing cardboard, which is treated on both sides by a cover layer consisting of bitumen and mineral filler.

In the end, a special powder is applied to the outside.

To the minuses of a simple roofing felt can be attributed to fragility. Even if the coating is of high quality, and also every norm during installation has been carried out, at best the coating will last about five years.

Alternative - coating with the addition of fiberglass or polyester fabric, fiberglass canvas.

Its devices are also simple, and the roof will not need to be replaced or repaired until ten years on condition of buying quality roll products. For example, as evidenced by the reviews, from TechnoNIKOL.

When calculating the required amount of material, such a norm should be observed: 100 m2 of roofing material will be needed per 100 m2.

The technology of laying roll products is quite simple. Usually the device does not cause problems.

Video:

First unwind the roll and leave it for a day. Further it is desirable to primethe flooring. Glue ruberoid on the mastic.

During installation, the coating should be placed in at least 2 layers, such a rule provides higher strength and reliability.

In the area adjacent to the walls, it is better to lay 3 layers to improve insulation. Cover with a large mound of stems from above, and with a smaller one - inside the pie.

A roofing burner can be used to mount the roofing and then repair the roof. The equipment is a metal glass with a nozzle and a handle.

The device works on gas( most often propane), which penetrates into the body through a hose. The consumption of propane is saved by means of a special reducer.

The flow rate of the propane used also regulates the mode changer.

Another type of rolled products is a wide range of weldable materials that can easily handle both the entire roof and difficult areas. For example, the places of contiguity to the wall or chimney.

Among the manufacturers of weldable roofing coatings can be identified TechnoNIKOL, PETROFLEX, etc. This type is made on the basis of non-rotting cloth and is necessary for laying the roofing carpet.

With regard to consumption, the rate is approximately 400 g / m2.

The advantages of the melted roofs include the simplicity of the device, the durability( up to 30 years of service life), high strength and elasticity, water resistance, resistance to sudden temperature changes, and the fact that this coating is suitable for flat roofs.

When repairing the roof it will be enough to apply one layer, and for laying a new cover - at least 2. Special attention should be paid to the areas of contiguity to the walls.

For welding installation, a propane torch is required, but it is also possible to use an alternative option - to fix the layer with a mastic or with the usual mechanical method.

How to install soft shingles?

Bitumen shingles, unlike the roll version, are made in the form of small flat sheets, more convenient for installation.

The market now offers a huge selection of flexible shingles with different characteristics from leading manufacturers such as Ruflex, TechnoNICOL and others.

A diverse map of colors and textures makes it possible to make a soft roof the most suitable for the overall design of the house.

When working with soft tiles, it is also good that the norm does not provide coverage for a coating larger than the area itself.

Also, in contrast to the roll version of the roofing materials described above, the service life of soft tiles is much higher and is about 15-20 years.

However, not all roofs are suitable for laying this roofing material - the minimum slope should be 10 degrees, but the material device allows you to lay it even on vertical surfaces.

Video:

The most relevant such roofing material will be for roofs of non-standard shapes, for example, dome-shaped. In this case, an additional advantage of soft tiles will be a certain level of noise absorption.

The technology of a soft roofing system using bituminous shingles requires careful preparation, a properly made cake and careful selection of materials.

All this is necessary for long roof life and high-quality installation.

Do not buy too thin sheets, the most optimal thickness is from 3 mm.

The backing carpet, fixed with nails, is necessarily laid on the base. A primer coat is applied from the top.

For the installation of the roof tiles, the most important thing is to lay it strictly perpendicular to the roof edge, otherwise the appearance of the house will be spoiled.

Cornices, edges, chimneys, as well as areas of junctions are better protected with metal strips. Then the entire surface must be primed.

To fix the base, it must be "activated", which requires a propane torch.

Carefully heat the bottom of the material so that the film can evenly melt, otherwise the roof will be leaking. Top the device with special clips.

Joints deserve special attention. Most of the sheets are cut straight, but you need to do this on the dark edge of the picture.

Thus, a soft roofing device with soft tiles is more complex, but at the same time more reliable.