How to roof the roof with an ondulin do it yourself

23-01-2018

Useful

In the list of modern roofing materials, widely used both in the private sector and in industrial construction, a special place is occupied by ondulin (or Euro-asbestos), characterized by such remarkable properties as:

visual appeal;
lightness and high wear resistance;
quite reasonable price;
easy installation

Ondulin, which consists of bitumen, cellulose fibers, rubber and mineral substances (as a filler), can be classified as unique materials made in the form of standard sheets of wave-like shape, reliably protecting the roof structure from the weather.

Advantages and disadvantages

Before you cover the roof with an ondulin with your own hands, it is not at all superfluous to familiarize yourself with some of its distinctive features. Like any roofing material ondulin has its advantages and disadvantages. The undoubted advantages of such coatings include:

high resistance to sudden temperature fluctuations;
long service life;
the possibility of laying the material blanks on the old floor;
resistance to biologically active environments (mold and fungus);
high environmental friendliness.

The disadvantages of ondulin coatings are usually attributed to:

combustibility of the material;
the roughness of its surface, contributing to the retention of snow on the plane of the roof;
small selection of possible colors;
"Burnout" of the surface of the sheet under the influence of direct sunlight.

Features of work with the material

As mentioned earlier, one of the advantages of ondulin is the possibility of its quick installation, combined with the relative simplicity of all operations performed in this process. Given the fact that the ondulin is allowed to lay on the old roofing, the economic effect of its use can be quite large.

In addition, when carrying out installation work with this material, there is no need to use any complex tool, as well as in the special training of the contractor. The owner of the structure being built is able to cope independently with the task set for him (even without outside help).

Since the ondulin is soft, then the OSB sheets that will not allow this roofing material to sag should be fixed over the batten. Ondulin is relatively light and even with OSB sheets a new roof is much lighter than the old tile and even slate.

Obesity

In the case when the roof is being constructed “from scratch” - it is necessary to prepare a reliable crate of bars, which will serve as the basis for laying sheets of ondulin. In addition to its direct purpose (as a supporting base), this part of the roof structure can be used to place on it such important elements as heat and waterproofing.

Obesity под листы ондулина делается с небольшим шагом, достаточным для того, чтобы материал покрытия не провисал под весом скопившегося снега или же поверх старой обрешетки набиваются листы ОСБ. Помимо этого, параметры обрешетки должны выбираться с учетом угла наклона ската, а также направления ветра, характерного для вашей местности.

For the classic stingray, closed by ondulin, the basic parameters of the frame base are as follows:

the optimum angle of inclination of the roof is not less than 20 degrees;
typical pitch with which obreshetka bars are stuffed - from 60 to 80 cm;
with a larger step it will be necessary to use intermediate slats.

Installation conditions

For the construction of a reliable ondulinovoy roof, capable of serving for many years, it is recommended to get acquainted with a number of provisions relating to the installation of the specified material.

This installation instruction contains the following recommendations:

When moving along already laid sections of the roof covering, it is necessary to step on the crest of the blank, since the depression between them is not designed for heavy loads.
All operations on laying of ondulinovy covering are carried out at air temperatures from-5 to + 30 ° C, guaranteeing preservation of the declared characteristics.
For fixing one sheet blank, at least 20 fasteners from the purchased material set should be used. The specified number of nails increases the reliability of fastening of the material, taking into account possible loads (with strong gusts of wind, for example).
For arranging the batten, bars with a cross section of 60 × 40 mm are usually used.

Roof slope

In each specific situation, the crate step is set depending on the angle of inclination of the ramp to be closed:

when the slope of the slope is less than 10 degrees, as a rule, a continuous sheathing of OSB sheets or moisture-resistant plywood is made;
at angles of inclination from 10 to 20 degrees, the size of the working step should be about 450 mm;
at high angles of inclination of the roof, this figure can reach 600? 800 mm.

In the first of these cases, the amount of overlap in height (end overlap) must be at least 300 mm; while the side overlap is done in two waves of the sheet. At high angles of inclination of the roof, these figures decrease to 200 mm and one wave, respectively. It should also be noted that a standard wood saw with lubricated technical oil can be used to adjust the sheet blanks.

Sheet fixing technique

This subsection describes how to properly fasten an ondulin sheet on a crate.

The installation of the first row is carried out in solid sheets, starting from the edge of the roof. To fix them, special nails are used (they look like screws), which must be installed in each crest of the wave. When laying the subsequent rows, half sheets will be required (i.e., cut longitudinally into two parts), which are fastened through a single comb. It goes without saying that each of these sheets (as well as the rows) should be installed with a small overlap, the value of which is indicated above.

Sheets, fixed in a vertical position, are fixed on a crate prepared for them with a longitudinal overlap (overlap) in a single wavelength; while the transverse overlap should be about 150 mm. At the final stage of roofing work, the installation of the ridge elements of the roof is made, which are fixed with an overlap along the wave of the sheet used.

Cost of material

The cost of a standard sheet ondulin size 2000? 950 mm in different regions ranges from 380 to 400 rubles.

The total need for roofing material, as well as the total cost of its purchase is determined by taking into account the number of sheets needed to close all roof slopes, the area of which is calculated by known methods. When determining the total area, we should not forget about the amendment, which takes into account the part of the surface that is hidden under the overlaps (between adjacent sheets and rows).

And in conclusion, we recommend that you familiarize yourself with the video, which describes the installation of ondulin on the old roof, covered with roofing material (slate).