Ondulin Roof: Features Of The Device, Installation And Operation, Reviews And Photos

2024 Author: Bailey Albertson | [email protected]. Last modified: 2024-01-17 22:26

How to make a roof from ondulin with your own hands

Ondulin is one of the most popular materials for finishing roofs. But it requires special attention to the arrangement of the roof. Knowledge of these features will allow the developer to correctly complete the purchase of the main material with additional elements and fasteners, as well as to mount the roof with his own hands.

Content

• 1 How to choose a material and make a do-it-yourself ondulin roof

  • 1.1 Photo gallery: what are the roofs of ondulin
  • 1.2 Forms of release

  • 1.3 Basic properties

    1.3.1 Video: the pros and cons of ondulin

• 2 Roofing device with ondulin

  • 2.1 The device of the roofing cake for ondulin
  • 2.2 Roofing elements made of ondulin

• 3 Features of installation

  • 3.1 Purlin device

    3.1.1 Video: how to make a crate for ondulin

  • 3.2 Errors when installing an ondulin roof
  • 3.3 Video: installation of an ondulin roof
• 4 Features of operation

How to choose material and make a do-it-yourself ondulin roof

The period of ondulin's stay in the construction market is already more than seventy years. During this time, he gained well-deserved popularity and occupied a solid niche among inexpensive roofing materials.

The advantages of ondulin are determined by the use of high-quality environmentally friendly materials and a well-developed production technology for its production. They are as follows:

1. The basis for the production of ondulin is cellulose.
2. High purity bitumen is used.
3. Impregnations are made using polymer resins.
4. Only pure mineral fillers are used.
5. Absolutely harmless mineral pigments are used, which are based on substances of natural origin.

The high strength characteristics of the material are due to the impregnation of the binder under high pressure. The use of mineral dyes makes it possible to obtain products in a wide range of colors.

Photo gallery: what are the roofs of ondulin

The presence of the original colors of ondulin will allow you to implement any ideas, for example, it will help to make a fabulous teremok out of the gazebo

Ondulin can be not only monochromatic, but also multicolored, and the roof of it can resemble a beautiful carpet.

Even the simplest color schemes of ondulin roofing can be in good harmony with the exterior of the building.

Ondulin is well suited for the construction of roofs of any shape due to its softness and manufacturability

Release forms

Ondulin is a sheet material with a size of 950 x 2000 mm, while the height of the corrugation is 36 mm, and the thickness is 1.5 mm. When calculating the material requirements for roofing, it must be borne in mind that the total overlap is 16 cm.

The weight of one sheet of ondulin is no more than 6 kg, which is 4.5 times less than that of slate of the same size.

The low weight of the sheet of this material provides several advantages:

1. The total load on the building's rafter system when using ondulin is significantly reduced, which allows you to save on lumber by choosing reduced-size rafters.
2. Installation of the topcoat and material supply to the roof can be performed by one person.

3. Delivery of material to the installation site is greatly simplified. It is easier to load, and you can use a car for transportation.

   

   Ondulin differs from many other roofing materials in its light weight, good flexibility and a wide variety of colors.

Basic properties

The list of main technical characteristics includes the following indicators:

1. Durability. The service life of ondulin, if installation is carried out in accordance with the established rules, is up to 40 years. It should be noted that the manufacturer guarantees a service life of 15 years. For this indicator, ondulin does not stand out at all among other roofing materials, there are topcoats with much more significant indicators.
2. Resistant to temperature changes. The introduction of polymer additives into the material reduces the ability of ondulin to withstand extreme seasonal temperature fluctuations: in hot weather it softens, and in severe frosts it becomes brittle. Lathing for ondulin, made with deviations from the manufacturer's recommendations, can cause the roof to collapse under a snow load.
3. Environmental friendliness. The undoubted positive quality of the material is its environmental friendliness. The manufacturer recommends using roofs with ondulin to collect drinking water. The only drawback in this regard can be considered the occurrence of a bitumen odor in very hot weather.
4. Fire safety. Ondulin containing bitumen is a combustible material. It ignites at 280 ^° C and sustains combustion. Therefore, in the construction of buildings with increased fire safety requirements (children's institutions and educational institutions), it is supposed to arrange fire-prevention cuts with such a roof. They divide the roof into separate sections, preventing the spread of fire and making it easier to extinguish a fire.

The main advantages of ondulin:

• low noise of structures - the sounds of rain or hail do not penetrate the room;
• biological resistance - the material is not damaged by fungi, is not subject to decay or infection by bacteria;
• resistance to aggressive environments;
• resistance to ultraviolet radiation - the material does not degrade when exposed to sunlight.

Summarizing what has been said, it can be noted that ondulin does not have outstanding qualities at all, but is a reliable material for the device of the finishing roof covering.

Video: the pros and cons of ondulin

Roofing device with ondulin

At the stage of preparation for the installation of ondulin, it is necessary to calculate the need for material and related products. The latter includes fasteners specially designed for this roofing. It consists of nails and spacers that match the color of the base material. The need for fasteners is 20 pieces per sheet. When calculating the number of sheets on the roof, you need to take into account the overlap between the sheets of 40 centimeters in length and in one wave in width. The number of waves on a sheet is 10 pieces.

A standard ondulin sheet has 10 waves, but two extreme waves go overlapping

When it comes to repairing a roof, you need to assess the condition of the rafter system. If it does not cause concern, you can do without dismantling the old coating by arranging the crate directly on top of it. This is possible because the increase in the load from the ondulin layer will be only three kilograms per square meter of surface. At the same time, the coating of this material withstands wind loads at an air flow rate of up to 190 kilometers per hour.

Roofing cake device for ondulin

The roofing cake is formed as follows:

1. Windproof diffusion-waterproofing film "Ondutis SA 130" or "Ondutis SA 115" is laid on the rafters. Its fastening is made by counter-lattice bars measuring 25x50 or 40x50, located along the rafter logs. When installing waterproofing, it should be avoided stretching. Under tension, micropores in the film can be deformed, as a result of which it will not perform its functions.

2. For the main supporting lathing, a board 25 millimeters thick is used. Given the properties of ondulin, under it you need to arrange a frequent crate with a distance between the rows of up to 5 centimeters.

   

   Counter-lattice bars fix the waterproofing film and at the same time form a ventilation gap between it and the roofing

3. From the inside, between the rafters, an insulation with a thickness of at least 100 millimeters is laid. You can use any materials, from ordinary mineral wool to polymer compositions applied by spray.

   

   When using slab insulation, they must be laid in the intervals between the rafter joists with an interference fit in order to fill all the available space without leaving gaps

4. In the under-roof space, a vapor barrier film is attached along the rafters, which is used as special membranes "Ondutis 100", "Ondutis 70" or "Ondutis R thermo".

   

   The vapor barrier film is stretched along the line of the rafters and insulation from the side of the room and fixed with a furniture stapler

5. The crate is arranged along the inner edges of the rafter system. The material can be any sheet products - plywood, fiberboard, chipboard and so on. A 25x150 board is often used.
6. The finishing coat of the interior finish is mounted.

Ondulin roofing elements

To perform specific operations when installing an ondulin roof, various additional elements are used:

1. Pass-through element. It is intended for output through the roof of stove and ventilation pipes. For its fastening, self-tapping screws are used, which are screwed into the crate boards.

   

   The pass-through element is used to protect the place where pipes exit from a roof covered with ondulin

2. Gabled elements. They are used in the design of inclined roof edges. Given the plasticity of the material, the pliers can be folded to the wind board with self-tapping screws. These parts are installed with an overlap of 15 centimeters, up to 12 screws are required to secure one part.

   

   Gabled elements protect the end faces of the roof

3. Ridge detail. It serves to connect two roof slopes. Skates are sold separately. The total length of the part is 100 cm, the useful length is 85 cm. The installation should be started from the edge of the roof opposite to the prevailing wind direction at the building site. Fastening is done with self-tapping screws to the crate. The screw installation step is through one wave of the underlying ondulin sheet.

   

   The ridge part serves to seal the opposite roof slopes

Other elements of the roof are selected on site from any materials suitable in size.

Installation features

The procedure for installing the topcoat from ondulin is practically no different from the technology of laying asbestos slate or corrugated sheets.

1. The first sheet is installed from below on the leeward side. Its position is checked against the tensioned cord to avoid skewing. If, at the time of installation, the roof overhang has already been formed at the end of the roof, the first sheet is installed along the edge of the end.

2. Next, the second sheet is installed vertically, and the next will be the first sheet of the second row. The installation is continued with ledges until the end of the shelter of the entire slope. If you need to trim sheets to fit in place, you can use a regular wood hacksaw. Before use, the saw blade must be lubricated with any mineral oil. It is also convenient to perform this operation with a jigsaw.

   

   Sometimes, to increase the tightness and strength of the coating, ondulin sheets are laid with bandaging in half of the sheet

3. In the places of the lower junction of the slopes, special elements - valleys - are laid, and the sheets of ondulin are cut parallel to the joint line so that their edge goes over the valley strip by 10-15 cm. An important point when covering with ondulin is the correct installation of fasteners. They must be placed strictly in one line so as not to disrupt the harmonious arrangement of these parts.

   

   At the junction of the two slopes, the sheets of ondulin are laid on the valley bar with an overlap of at least 10 cm and are attached with special nails exactly along the line

Sheathing device

A high-quality coating from ondulin can be obtained only by following all the recommendations for the construction of the roof frame for this material:

1. When the slope of the roof slope is 5-10 degrees, the crate is made of a board or waterproof plywood. The bottom overlap should be at least 30 centimeters, the side overlap - 1 wave.
2. If a slope of average size (10-15 degrees) is used, the lathing can be done less often - in steps of 35-40 centimeters, and the amount of overlap can be reduced to 20 centimeters.

3. For slopes more than 15 degrees, the overlap can be 18 centimeters, and the sheathing step is 60 cm.

   

   The step of the lathing depends on the angle of inclination of the roof: the larger it is, the less often horizontal rows of boards can be placed

4. The last three boards in the space under the ridge are packed without gaps.

Video: how to make a crate for ondulin

Errors when installing an ondulin roof

When installing an ondulin roof, especially if the work is done by hand, performers often make a number of typical mistakes that directly affect the quality of the roof. Let's point out the most common ones:

1. Insufficient fastening of sheets. If you are supposed to put at least 20 nails, then they must be installed. We have to meet the installation at 15 or even 10 attachment points. In a strong wind, these sheets will fly strictly in its direction.

2. Violation of the installation step of the sheathing boards. Acting on the principle of "come down and so", the performer arbitrarily increases the step of the crate. In the case of ondulin, it will not work. In the hot summer, the roof can sink and go in waves, and in the winter, becoming fragile in severe frosts, it often does not withstand significant snow loads.

   

   If the crate is too rare, the sheets of ondulin can sag under the influence of a snow load

3. Offset of ondulin sheets in a row. Attempts to level the coating by stretching the next sheet are usually successful, but only at first. Over time, swelling often occurs in this place and the roof loses its appearance. In addition, wind loads in these areas increase significantly.
4. Laying should be done only in a staggered manner, carefully and carefully, otherwise displacement along the rows happens most often.
5. Installation at temperatures below zero is not allowed by the manufacturer, this recommendation should be heeded.
6. A common mistake is when four sheets are joined at the same time in one place. Parts pushed up in such places are clearly visible even from below.

It should be concluded that ondulin, which has a number of advantages, can be hopelessly damaged if the technology of its installation is not followed.

Video: installation of an ondulin roof

Features of operation

One can regret this, but there are no perfect building materials.

When considering the problems with the operation of ondulin, it is necessary to compare its qualities with similar materials of other types. One of the problems many owners of such roofs call the impossibility of using ladders.

It should be noted that the strength characteristics of ondulin allow it to withstand loads of up to 960 kilograms per square meter, but this applies to distributed loads. And if you lean the ladder on the edge of the roof sheet, of course, it will break. But the same phenomenon is often observed with slate. The edges of the metal tile and corrugated board are deformed. In this case, the protective layer is destroyed and corrosion enters into business.

When working from a ladder, you need to try to ensure the maximum contact area with the coating, otherwise the ondulin sheet may break

The specified load is strictly maintained if the crate is made in accordance with the manufacturer's recommendations. Otherwise, failures of the topcoat may occur during the hot season.

References to roof softening are typical complaints. This can happen because the material contains bitumen. Moving on the surface of such a roof is possible only with the use of roof ladders or boarding.

The service life of ondulin roofs reaches 40–45 years with a manufacturer's warranty of 15. This is a fairly high figure for devices of this kind. But it is possible only with strict adherence to the rules of preparatory work and installation, especially when installing it yourself. Knowing the peculiarities of using this material, you can count on success.