Coating the roof of a bathhouse with ondulin is one of the most popular solutions. And this is not due to low cost at all. roofing, but with the operating features, loads acting on the roof of the bathhouse and ongoing processes.
We can safely say that covering a bathhouse with ondulin is more cost-effective than, for example, metal tiles. Why?
When using the bathhouse for its intended purpose, the premises are very heat and air humidity. Steam penetrates through the ceilings and accumulates in the attic. If the roof is not insulated, then condensation settles on the lower part of the roofing and flows onto the wooden rafters and sheathing. Moreover, the lower the air temperature outside, the more moisture settles on surfaces. And moisture, as is known, - main enemy any roof.
Let's consider another situation when the bathhouse is periodically used in winter time when there is a layer of snow on the roof. Metal roofing coverings have high thermal conductivity. When the roof warms up, snow cover begins to thaw and then freeze, forming ice. In such conditions, corrosion processes rapidly progress, which leads to the need for maintenance, repair or even replacement of the roofing covering.
Taking into account all of the above situations, we conclude: a bathhouse requires a roofing covering with low thermal conductivity and impervious to moisture. Optimal solution– ondulin, which:
- during the production process it is impregnated with bitumen on all sides, after which it tolerates operation in high humidity conditions;
- does not collapse due to a few scratches;
- heats up quickly and prevents condensation from appearing on the surface;
- does not make noise when it rains;
- dries quickly;
- It is lightweight, which reduces the load on the foundation.
However, you should not expect that ondulin will last 50 years. This material is not characterized by high strength and wear resistance. Provided that all installation rules are followed, the roof will last 15-20 years, after which it will be necessary to update the coating due to the loss of ondulin’s original shade and, possibly, shape.
Important! Among the disadvantages of ondulin is its high flammability. But this material is not prone to spontaneous combustion, it only supports combustion. This disadvantage can also be considered as an advantage, since if the fire quickly escapes, it is possible to save the main part of the building.
Prices for ondulin
Types of ondulin
Ondulin is produced in three versions. The sheets have different sizes and weight, but are produced using the same technology.
| Name | Technical specifications | Peculiarities |
|---|---|---|
| 195 x 96 cm – dimensions. 3 mm – thickness. 6.3 kg – weight. | The sheets have markings that make it convenient to drive nails into. There is a water barrier lock. There are 10 waves on the sheets. |
| 195 x 76 cm – dimensions. 3 mm – thickness. 5 kg – weight. | The narrowest eight-wave sheets. When installing narrow sheets, there will be more longitudinal overlaps, and accordingly, the overall rigidity of the roof and its load-bearing capacity will increase. |
| 100 x 75 cm – dimensions. 2.6 mm – thickness. 2.5 kg – weight. | The best option for baths with a small or complex-shaped roof. Small sizes eight-wave sheets reduce the amount of trim and waste. |
The waves of all types of ondulin are the same - 9.5 cm pitch and 3.8 cm height. To minimize the amount of waste when arranging the roof, you can combine different sheets.
Rules for installing ondulin
The installation rules are as simple as possible; even those who have never installed roofing before can remember and apply them.
Bitumen sheets are attached either to a solid or sparse sheathing, observing the recommended overlap values. The exact data is presented in the tables below.
Data for roofs with a slope of 5-10 degrees.
The sheathing is built continuous.
Important! In all situations under consideration, the edge of the ondulin sheet on the eaves cannot be further than 35 mm from the edge of the sheathing.
Data for roofs with a slope of 10-15 degrees.
Data for roofs with a slope of more than 15 degrees.
| Parameter | DiY | 17-27 degrees | More than 27 degrees |
|
|---|---|---|---|---|
| Lathing pitch, cm | 61 | 61 | 26,7 | 43 |
| End overlap, cm | 12 | 17 | 20 | 14 |
| Overlap on the sides, number of waves | 1 | 1 | 1 | 1 |
| Cornice overhang, cm | 7 | 7 | 7 | 7 |
| Number of nails per 1 sheet, pcs. | 20 | 16 | 14 | 13 |
Important! In regions with a heavy snow load, it is recommended to do more frequent sheathing and increase the overlap of sheets.
For continuous sheathing the following is used:
- FSF plywood;
- edged/unedged board;
- DSP boards;
- OSB-3 boards, etc.
Prices for FSF plywood
FSF plywood
Sparse lathing is made from:
- boards with a thickness of at least 25 mm;
- bars with a thickness of at least 25 mm.
Additional elements (depending on the design of the bathhouse roof) may include:
- valley strips 100 cm long, 50 cm wide;
- ridge strips 100 x 50 cm;
- sealing tape 250 x 30 cm;
Sealing tape “Onduflesh”
- gable strips 100 x 21 cm;
- nails 70 mm long;
- covering apron 93 cm long, 1.5 mm thick;
- polyethylene foam filler, thickness 19 mm, length 85 cm;
- vapor/waterproofing/superdiffusion membrane “Ondutis”.
General rules for performing work on installing bitumen sheets.
| Rule | Description |
|---|---|
| When working on the roof, be sure to use a safety harness and rope. Safety ropes must not be attached to the heads of chimneys or ventilation pipes. To move along the roof, you must use a ladder with a hook, ladders with cross bars to support your feet. |
| Rain, hail, fog, ice, wind at a speed of more than 10 m/s - with such weather conditions Laying sheets is prohibited. |
| Bitumen sheets are laid strictly at air temperatures above -5°C, but not more than +30°C. In hot weather, ondulin becomes too plastic and inconvenient to work with, especially for novice craftsmen. |
| It is convenient to mark the sheets with a colored pencil, using a ruler, a strip, a stretched thread or the smooth factory edge of another sheet of ondulin. |
| Determine the direction of prevailing winds for your area. Laying sheets must begin from the lower edge of the roof, on the side where there is no wind. |
| It is highly not recommended to stretch or compress bitumen sheets by more than 1 cm. |
| The second, and then each even row should begin not with a whole sheet, but with a sheet sawn in half lengthwise. Four corners of the sheets should not meet in one place at once, otherwise deformation cannot be avoided roofing material. |
| ● All nails are driven into the upper crest of the wave at right angles to the sheathing. ● The first four nails are driven into the corners of the sheet. ● Nails are driven into each ridge from below and above. ● In the central part, the nails are driven through one wave so that the ondulin does not deform. ● Nails are driven into the overlapping edge wave during installation of the next sheet. |
Prices for vapor/waterproofing, superdiffusion membrane “Ondutis”
Calculation of roofing and additional elements for the roof of a bathhouse
Step 1. Calculation of the number of sheets.
First, you need to measure the roof.
Initial data: ridge length 8 m, gable length 16 m, slope length 4 m, total roof area 64 m2.
For the calculation, we take a sheet of ondulin 1 m 95 cm long and 95 cm wide.
The useful area of the sheets depends on the roof slope:
- 5-10 degrees – 1.29 m2;
- 10-15 degrees – 1.54 m2;
- 15 degrees and above – 1.56 m2.
In our case, the useful area of one sheet will be 1.56 m2.
To find out the number of sheets, you need to divide the total roof area by usable area one sheet and round up to the whole number.
64 m2: 1.56 m2 = 42 sheets.
Professionals advise purchasing sheets from stocks of 5-10% of the total quantity. So, for a roof with an area of 64 square meters It is recommended to purchase 45 sheets of ondulin.
Step 2. Calculation of the number of ridge strips.
In addition to the bitumen sheets itself, you will need a ridge strip. The useful length of one plank is 85 cm.
Accordingly, we divide the length of the roof ridge by the useful length of the strip and get the required amount.
8 m: 0.85 m = 10 planks.
Step 3. Calculation of the number of gable strips.
We use the formula that was used to calculate the number of ridge strips.
The useful length of the gable strip is 95 cm.
16 m: 0.95 m = 17 tongs.
Plus one spare tong, for a total of 18 pieces.
Step 4. Calculation of the number of nails.
One sheet of ondulin must be secured with twenty nails. Multiply the number of sheets by the number of nails.
45 x 20 = 900 pieces.
You will also need nails to secure additional elements, so it’s worth taking extra so as not to interrupt your work due to suddenly running out of hardware.
We cover the roof with our own hands. Instructions
Stage 1. Mount the sheathing under the ondulin. Consider the slope of the roof to accurately determine the distance between the boards.
Before you begin laying the covering, you need to nail bars under the gable and ridge strips to make the structure more rigid.
Secure the bars at a distance of up to ten centimeters from the center of the ridge bar. This distance is selected depending on how steep or gentle the slopes are. It is best to try the skate on the roof in advance.
Stage 2. Attach a special apron strip that bends at different angles to the cornice. Due to its design, the element can be fixed at any distance from the edge of the cornice.
Attach the elements with a five-centimeter overlap.
Stage 3. Install the wind board 3 cm above the level of the sheathing.
Prepare the roof covering for installation. Trim if necessary. Install the first sheet of covering so that its long edge meets the wind board. If a drip line was previously installed, install the sheet flush with the edge of the roof.
If a drip is not provided, the sheet should hang over the edge of the roof by no more than five centimeters.
Stage 4. To protect the under-roof space from birds, insects and debris, use eaves infill. To ensure ventilation of the under-roof space, make holes in the filler by squeezing out the material with a suitable tool.
Stage 5. Begin the fastening process.
The new nails have a strong, monolithic head. The shade of the cap matches the color of the roofing material. Drive the nails in with a hammer, placing them perpendicular to the covering and sheathing boards.
Stage 6. If it is necessary to install gable elements, then fix the wind board tightly to the ondulin, and the upper edge of the board should be 35 mm higher than the surface of the sheathing.
The forceps are mounted from bottom to top. The overlap of the tongs on each other is 12-15 cm.
Drive nails in from above and from the sides in increments of 31 cm, and pay special attention to fixation in places where there is overlap.
Stage 7. Attach the skate. The planks are fastened taking into account the direction of the winds. Determine which direction it blows most often and mount the skate on the other side.
Take the sealant (cornice filler), clear the holes and insert it under the strip.
Nail the ridge along each underlying wave of ondulin, each side in turn.
Install the following ridge strips with an overlap of 15 cm and so that the water barriers coincide.
Video - Analysis of possible errors
Internal junction of slopes
It is designed using a valley strip.
Stage 1. Secure boards or beams that will provide additional support for the plank. The plank itself will be attached to these boards.
Stage 2. Take a sheet of roofing and fix it on the lower slope. Trim it if necessary.
Do not forget about the order when hammering in fasteners.
Stage 3. Apply Ondutis BL sealing tape to the overlap areas of the valley elements for better roof tightness.
Stage 4. Nail the valley strip. Drive a nail into each ridge of the covering underneath.
Stage 5. Secure the seal.
Start attaching the sheets on top of the plank. The bottom edge should not be further than seven centimeters from the fixation point. Along the bottom edge, drive fasteners into each ridge.
Let's consider an example on a roof with a slope angle of more than 15 degrees.
In this case, a sparse sheathing of boards is installed under the ondulin with a pitch of 61 cm.
Stage 1. Attach additional boards to the lower slope. Nail them in such a way that they support the fasteners of the tongs.
Stage 2. Take a sheet and place it on the bottom slope sloping roof. Drive in the hardware from below, then from above, and then in the center in a checkerboard pattern through one wave.
Stage 3. Attach a sealant to the top edge of the secured sheet. Lay gable strips on top with an overlap of 15 cm.
At the bottom, fix the bar with nails into each wave of the underlying ondulin.
Important! The bottom edge of the sheet should not hang more than 7 cm from the fastening point.
Valley strip: installation
Endova is a roofing element located at the junction of two slopes (internal corner).
Stage 1. Along the valley axis there should be solid base. The width of the lathing is at least 25 cm from the central axis of the plank.
Stage 2. Place elements from bottom to top. Attach the first plank with the lower edge extended by 5-7 cm; in the future, it is not difficult to trim off the excess.
On a note! To align the valley strip relative to the axis as accurately as possible, secure it with a construction stapler on four sides. Drive the staples closer to the edges.
Lay and staple the remaining elements in the same way with an overlap of 15 cm.
Stage 3. Cut the ondulin sheets extending onto the valley strip at a distance of 5-6 cm from the valley axis.
Attach the sheets on both sides of the valley. Drive fasteners into each wave at a distance of 3-5 cm from the edges of the plank.
Horizontal junction of roof and wall: sealing
Relevant for bathhouses with adjacent verandas or terraces, as well as bathhouses attached to the house.
To design the junction, a covering apron and Onduflesh Super tape are used.
Stage 1. Nail an additional board or beam onto the roof sheathing next to the wall to ensure greater structural strength.
Stage 2. Install the roof covering.
Stage 3. Lay the covering aprons overlapping in one wave. One side of the additional elements should be adjacent to the wall, the other should lie on bitumen sheets.
Fix the lower part of the elements with nails in each wave. Additionally, secure the upper part of the apron with self-tapping screws if the connection is not tight.
Stage 4. Cut a 15 cm wide strip from the Onduflesh Super tape. Apply the tape over the apron, extending onto the wall.
Stage 5. Secure the top of the sealing tape with a metal strip and screw self-tapping screws into the holes.
Connecting a sloping roof to a wall: sealing
Relevant for bathhouses with a porch with a gable roof.
Stage 1. Nail a board or bars close to the wall onto the sheathing.
Stage 2. Secure the roofing material.
Stage 3. At the junction of the wall and the covering, stick “Onduband” or “Onduflesh Super” to seal the joint.
Stage 4. Screw a metal strip to the top edge of the tape.
Secure the lower edge of the tape with roofing nails.
Chimney pipe passage: installation of additional elements
Almost every bathhouse has a chimney. The only exceptions are saunas with electric heaters. Passage place chimney through the roof must be properly designed to prevent leaks.
Stage 1. Start by finishing the front wall of the pipe. Try on the covering apron - it should be adjacent to the pipe so that there is 1 wave to the right and left of the walls).
Trim off the excess with a mounting knife.
Place the apron in place and secure it with nails, and do not drive them into the outer waves.
Seal the corners of the apron with pieces of Onduflesh Super tape.
Stage 2. Attach the apron strip to the side walls of the pipe (side connection).
Trim off the excess. Nail the apron to the additional sheathing bars installed in advance.
Stage 3. Apply sealing tape to the back wall of the pipe, as well as over the aprons. A 15 cm wide tape is enough for this.
Secure the sealing tape and apron with metal slats.
Apply polyurethane sealant between the top edge of the splashback and the wall.
Stage 4. Attach an additional sheet of ondulin to back wall chimney.
Bathhouse roof repair. Step-by-step instruction
Let's consider the option of updating the roof of the bathhouse without dismantling the old covering, which in this case represented by galvanized corrugated sheets.
With the help of ondulin, you can eliminate all the shortcomings of the old roof:
- poor-quality joints leading to leaks;
- increased wear of material with high thermal conductivity.
Stage 1. Take measurements and prepare boards with a thickness of at least 25 mm for installation of the sheathing and counter-lattice.
Nail the boards over the old roofing, placing them parallel to the ridges of the corrugated sheeting.
Perpendicular to the fixed boards, nail the sheathing under the ondulin. The recommended sheathing pitch can be found in the tables above.
Stage 2. Begin laying and fixing the ondulin sheets. Due to the low weight of the sheets, increased load on the bearing structures structures and foundation.
Stage 3. Fix the additional elements.
Roof repairs are carried out with the maximum short time and at minimal cost.
Video - Option to update a slate roof
Useful life hacks from professionals
Tip 1. You can cut ondulin crosswise using a regular wood saw. To prevent the cutting edge from becoming clogged with bitumen, periodically moisten it with water. You can also use silicone grease or oil.
But it’s most convenient to use a jigsaw. And to clean the knife, just saw any unnecessary piece of wood.
You can cut the bitumen sheet along the wave with an ordinary construction knife.
Tip 2. The nails need to be driven in, slightly recessing the head into the coating. But at the same time, it is important to calculate the effort so as not to break the sheet with a hammer when trying to hammer the hardware as deep as possible.
Video - How to hammer nails correctly
Tip 3. Dismantling an already nailed sheet without damaging it is not only problematic, but in most cases impossible. This is always worth remembering. Make sure that the sheet lies perfectly flat, only then begin fixing. It is for this purpose that a guide thread is pulled along the lower edge of the sheathing.
Tip 4. If it becomes necessary to walk with your feet on the roofing, then never step between the waves. Place your feet exclusively on the upper ridges.
Tip 5. Do not under any circumstances throw away the installation instructions that will be included with the roofing material delivered to the site. Firstly, these instructions indicate all the necessary distances, overlaps and overhangs. And secondly, this instruction is a warranty card for the materials.
Tip 6. Take care of your ondulin roof to extend its service life by several years. Check the condition of your roof twice a year. Best time for this purpose – October and May.
Make sure that the branches of shrubs and trees located near the bathhouse do not come into contact with the roof. If necessary, trim them in a timely manner with pruning shears, otherwise roof repairs cannot be avoided.
Clean ondulin with a broom at least twice a year. IN spring period You need to remove the garbage that has accumulated over the long winter, and in the fall you need to remove all the fallen leaves. All the debris that remains on the roof will definitely begin to rot. The roofing itself is unlikely to be quickly destroyed by this, but its service life will definitely be reduced.
Don't forget to clean your gutters.
On a note! It is much more convenient to clean up immediately after the rain.
Which can be mounted in different ways, depending on the purpose of the roof.
The layers of roofing that need to be covered with the roof are called roofing pie. Each of the layers roofing pie performs its functions and fits in accordance with certain rules. If the installation of even one layer of the roofing pie is violated, the principle is completely violated functional purpose the entire roof.
Depending on the roof structure and its purpose, the sequence, installation method and number of layers may differ slightly. In this article you will learn how to put ondulin correctly and how to calculate the number of roofing sheets.
The width and length of a standard Euroslate sheet are 95 cm and 200 cm, respectively. The area of such a sheet is 1.92 square meters. The useful area of the material is determined without overlaps and can be: 1.3 sq. m, 1.5 sq. m and 1.6 sq. m.
To calculate material consumption, the following indicators should be determined:
- useful area of covering material. Depends on the angle of inclination. The multi-slope roof shape is calculated from the total area of each slope;
- roof area. Determined by adding the areas of all slopes mathematical formulas shapes (trapezoid, square, rectangle, triangle);
- number of sheets of material. It is determined by dividing the area of the entire roof by the usable area of one sheet of material.
CAREFULLY!
The roof area is calculated exclusively along the eaves overhang line, but not along the edge of the roof sheathing.
The correct calculation of longitudinal overlaps is of great importance, which can significantly reduce the number of trims. The top row, if possible, should be laid in full-length sheets, since its height will be reduced by the ridge element.
There are a few more additions to correct calculation ondulina:
- when calculating, an additional 10% or 15-20% should be added respectively, to a simple roof or a complex roof with different angles and transitions;
- additional elements (ridges, valleys, gables, aprons around chimneys and windows, junction points) require additional coating with ondulin;
- when calculating mixed ondulin color scheme You should schematically depict the roof design on a reduced scale and calculate the consumption of sheets of each color separately.
Special programs for calculating the consumption of covering material greatly facilitate mathematical calculations and help more accurately calculate the amount of euro slate for roofing.
Ondulin - installation instructions
When the lathing is installed in accordance with the angle of inclination, the covering should be laid in stages. Installation of ondulin step by step:
ondulin (tiles) installation instructions
Now you know in detail how to put ondulin. All stages of roofing ensure error-free installation of ondulin, regardless of what roofing design is provided. The sequence of actions ensures a good result.
Waterproofing and vapor barrier under ondulin
Companies producing ondulin present the material as a coating that does not require the installation of additional vapor barrier materials or waterproofing. At the same time, it is recommended to equip the roof of the room (or attic) requiring insulation with a waterproofing layer. We also recommend installing a vapor barrier membrane on the room side.
Additional waterproofing elements and ventilation devices:
- waterproofing of the roof eaves is provided by a special box, which is attached to the base of the sheet overhang;
- ventilation is provided ventilation pipes, which, like the window, are fastened with self-tapping screws along each wave of the coating;
- to protect against insects, a ventilation comb is installed in the gap under the eaves;
- the joints of the ondulin sheets are glued with tape produced by the coating manufacturer (Onduflesh);
- the junctions of windows, valleys and other joints with the roof, cornices are also taped with adhesive tape;
Laying ondulin with your own hands: step-by-step instruction
Vapor barrier is often provided by laying a special vapor barrier material. This layer should be laid in the roofing pie.
Useful video
Educational thematic video on self-installation ondulina:
Conclusion
You can cover a roof with ondulin quite efficiently if you study the principles of operation and take into account the nuances of installation. Despite the fact that the material is quite light, one person can install it.
In contact with
Onduline is one of the most popular roofing coatings. Demand is determined by its strength, aesthetic appearance and durability. If you want to improve your own home, we will tell you how to cover a roof with ondulin with your own hands as efficiently and quickly as possible.
What is the material
Initially, before proceeding with installation, you need to study the properties of the material. Ondulin is similar to slate, however, it has a flexible base. This roof consists of the following layers:
- main board - cellulose-fibre board;
- mineral additives and filler, which are responsible for strength;
- bitumen resin, which guarantees resistance to moisture;
- pigment is responsible for the aesthetics of slate.
The price of 1 m 2 of ondulin starts from 200 rubles, so the cost of a sheet with a width of 0.95 m, a length of 2 m, a thickness of 3 mm, a wave width of 9.5 m and a weight of 6.3 kg is 395 rubles. You can buy the material at any hardware store, many also provide home delivery.
Advantages of ondulin
Modern onduline material is produced on the basis of bitumen. The advantages include the following:
- lightness - because of this, there is no need to construct a reinforced rafter system before laying the roof;
- budget cost is ensured due to the manufacturing method and available component materials;
- Elementary care - just spray it with a hose or wait for the rain;
- the material is resistant to acidic and alkaline irritants;
- there is no risk of mold on the surface and inside the layers;
- roofing made of ondulin is environmentally friendly due to the characteristics of the components;
- resistant to precipitation in the form of snow and rain;
- the manufacturer determines the service life of 15-20 years;
- installation of ondulin is possible on top of the old roof, which will save on dismantling.
Disadvantages of operation
It is necessary to note the disadvantages of the material in order to ensure the possibility of an objective choice of roofing:
- sun and rain can cause the roof to burn out, which will negatively affect the appearance of the coating;
- resistance to water is ensured only for the service life specified by the manufacturer;
- if you intend to purchase a large volume of slate, then it may turn out that some sheets differ in shade;
- fragility - the surface should not be walked on, as most likely dents or other damage will remain on it; the same criterion should be taken into account during transportation;
- As you can see in the photo, the limited color range currently includes only 4 colors: brown, green, red and black.
The technology for laying ondulin is similar to fastening slate, but before starting work you should do a little preparation.
Features of working with ondulin
To correctly attach ondulin to the roof, you should learn some of the intricacies of working with this fashionable material. After studying them, you will be able to lay sheets on the roof of any structure yourself.
- If you still need to go through proper material, then it’s better to step on the crest of the wave.
- To renew your roof for a long time, everything is better installation work carry out at temperature environment in the range from -5C to +30C. If the temperature is above normal or, conversely, below -5C, reschedule the work to another time.
- Approximately 20 nails are used to fasten one sheet. This is exactly how many nails the sheet can hold in case of gusts of wind.
- Due to the nature of the composition, the coating may stretch. This leads to the appearance of waves over the entire roof area, which will only have to be removed by dismantling. To prevent stretching, the ondulin fastening scheme involves the use of sheets that are perfectly even in shape.
- Check that the overhang is long enough. Too long will look unsightly, and too short will lead to the collection of debris and dust under the roof. The most dangerous thing is that precipitation will constantly fall under the short overhang.
What you need to prepare initially
Note that a smart choice the right tools and materials are much more responsible than the installation itself.
Perform an accurate calculation required quantity coverings. The dimensions of a standard onduline sheet are 200 x 95 cm. Be sure to take into account overlap allowances in your calculations. For overlap you will need to leave 9.5 cm in width and 10-15 cm in length. It turns out that the useful area from one sheet will be 1.6 m2. If you know the total roof area, you can simply divide it by 1.6. This way you will get an almost exact number of sheets needed. Please be aware that results may vary depending on the roof angle and roof shape.
Preparation requires the availability of the following tools:
- hand saw for wood;
- hammer;
- nail puller;
- ladder;
- roof ladder.
In addition, you should purchase auxiliary parts, without which the work will not be of high quality:
- tong elements (protective shields) for the edge;
- cornice filler (foamed polyethylene, which prevents debris from getting between the sheets and the sheathing);
- skate (flexible);
- rubber drip aprons;
- specialist. nail fasteners with a rubber cap.
Making lathing and its features
- Laying ondulin on the roof involves arranging a continuous sheathing. It is extremely necessary so that the material does not sag later. For installation, waterproof plywood or OSB boards, and the step should be 40-45 cm.
- If the roof slope is more than 15 percent, then the sheathing pitch can be increased to 60 cm. And for areas with big amount snow in winter, the sheathing pitch should be minimal. To build the frame, bars with dimensions of 4 x 5 cm, 5 x 6 cm or 5 x 5 cm are used.
- Install additional sheathing under the gable and ridge. The sheathing under the ridge is installed at a distance of 5-10 cm from its axis. This distance varies depending on the degree of slope of the roof slopes.
- The cornice is formed using a rubber apron, which can bend, enveloping the sheathing of the cornice at any angle. The apron is attached to the sheathing with ordinary self-tapping screws, and the overlap between the elements is 5 cm.
Important! Immediately before the construction of the sheathing, it is necessary to carry out waterproofing work.
- The last thing to install is the wind board, which should protrude 3 cm from the sheathing frame.
- After the frame is erected, be sure to check the entire structure for compliance with the geometry. To do this, measure the diagonal of each roof slope. If the values differ, all errors should be eliminated.
Ondulin installation instructions
To properly cover a roof with ondulin, you must adhere to a certain algorithm.
Important! Initially, you should take care of your own safety.
Here are the instructions for laying ondulin with your own hands:
- Attaching the first sheet should begin on the side farthest from the wind, and always from the bottom of the slope. To align the sheets, pull the cord along the bottom edge, taking into account that the sheet overhang should end at a distance of about 5 cm from the drip apron. The extreme wave of the sheet should go onto the wind board. Place the filler in the space of the waves between the sheet and the sheathing, releasing it with a screwdriver ventilation holes. If this is not done, birds may fly into the holes under the waves, and even hornets may take up residence.
- Special nails are equipped with special heads, so fastening is carried out like this: with a hammer you punch a nail with an open head at an angle of 90 degrees, and after driving it in, put on a decorative cap.
- Remember that you will have three lines of fasteners on each sheet. To get a nail into the sheathing, either mark the sheet or stretch a rope along the sheathing line. It is important to remember that the indentation of the lines along which the nails are driven in will depend on the pitch of your sheathing, however, there cannot be less than 3 lines of nails on the sheet. Next, carry out the fastening according to the diagram below.
- Lay the second sheet overlapping 1 wave, and you will nail its first wave together with the overlap, that is, immediately into the sheathing through two sheets. During the process, make sure that the second sheet does not protrude beyond the boundaries of the lace that regulates the horizontalness of the bottom of the roof. In any other situation, the sheets will lie askew. If you need to cut off the tip of the sheet, you can use a hacksaw.
- Second - the next row relative to the first lies in order chessboard. To do this, take and cut the sheet lengthwise in the middle. Install an overlap between the rows of 10-15 cm. If the roof slope allows, then the overlap can be reduced, thereby achieving savings in material consumption.
- After completing the installation of the last segment, you can proceed to attaching roofing accessories that perform the functions of protection and decoration.
- The gable elements are installed on the wind board, which is pressed closely to the ondulin. The overlap of the pliers is about 15 cm. It is nailed to the end with the same nails.
- The ridge for ondulin is attached to the edge of the roof opposite the predominant wind direction, just like the sheets. The ridge is nailed into each underlying wave, on both sides alternately. The overlap of the ridge elements is also 15 cm.
Important! Pay extreme attention to the quality of nail fastening. Their caps will be very visible on the surface, so initially take care of their correct geometry.
Now that you know the step-by-step instructions for installing ondulin, here is a video instruction for a more detailed introduction to the installation process.
Now you can easily cover your roof using ondulin. Perhaps you already have experience working with this material? Share your impressions with the readers below.
You will need
- - ondulin (Euroslate);
- - wooden slats;
- - material for the sheathing ( edged board oriented particle board etc.);
- - carpentry tools (hammer, saw, ax, etc.);
- - nails for fastening ondulin.
Instructions
Before installation, insulation (if necessary) and waterproofing (required) must be laid on the roof. If the roof is insulated, nail counter-battens to the rafters on top of the waterproofing, to which the sheathing will later be attached. They are necessary to ensure ventilation gap between ondulin and insulation.
Determine the roof slope. To do this, measure the height of the roof at the ridge and the length of its horizontal projection. Write these values in 1:X form. For example, if the height of the roof at the ridge is 3 m, and the projection length of the slope is 12 m, the slope will be 1:4.
Nail the sheathing. The distance between the boards of the sheathing will depend on the slope determined in the previous step: - with a slope of 1:11 to 1:6, the sheathing must be continuous; - with a slope of 1:6 to 1:4, the sheathing may have gaps - 450 mm between the axes boards; - with a slope of 1:4 or more, the distance between the axes of the boards should be 600 mm. The sheathing boards should be parallel to the lower edge of the slope. Make yourself a template that will help ensure this condition.
Start laying the 1st row from the bottom of the roof - on the side opposite to the predominant direction of the winds (so that the wind does not blow under the edges of the sheets). The lower edge of the ondulin should protrude in relation to cornice board at a distance so that water from the roof can drain approximately to the center of the eaves gutter, but not more than 70 mm. Depending on the roof slope, ensure the following overlap of ondulin sheets: - with a slope of 1:11-1:6, end overlap - 300 mm, side - 2 waves; - with a slope of 1:6-1:4, end overlap - 200 mm, side - 1 wave; - with a slope of 1:4 or more, the end overlap is 170 mm, the side overlap is 1 wave.
Nail the ondulin sheet with 4 rows of nails; two rows along the edges of the sheet, two in the middle. Nails located on the edges hit the top of each wave, nails in the middle rows hit through the wave. One sheet should require 20 nails.
The first sheet in the second row should be half of a whole sheet. This is necessary in order to “separate” the joints of the sheets in adjacent rows. Start each even row with half a sheet. Carry out cutting of ondulin hand saw or circular. To make cutting easier, you can lubricate the saw with oil.
Provide a gap between the rows of sheets on the ridge of no more than 10 cm. Before laying the last rows, nail an additional sheathing under the ridge profile. To design the ridge, it is advisable to use standard profiles from Onduline. Start laying them on the side opposite to the direction of the winds. The overlap of the profiles with each other should be 125 mm. Nail the ridge to each ridge of the sheet.
When designing the joints between the roof and the vertical wall (if any), as well as the places where different roof planes (valleys) adjoin each other, use standard profiles from ondulin manufacturers, having nailed in advance an additional sheathing to secure them. To waterproof the junction of the roof with the gable board (roof gable), two methods can be used: bend and nail the edge of the ondulin sheet to the gable board, or use a standard rectangular profile (gable element), placing it on the roof edge. The first method can be used at a temperature not lower than 2-5°C (to avoid sheet fracture).
The final and very important stage in the construction of the building frame is the arrangement of its roof with roofing material. Nowadays, due to its attractive performance characteristics, it is becoming increasingly popular among professional builders and home craftsmen are purchasing ondulin, otherwise called Euroslate.
Its production does not use asbestos, which is harmful to health, and the material is environmentally friendly. In addition, it has a low price and long service life. It is quite possible to do the work of laying the coating yourself, you just need to know how to do it correctly. Let's evaluate the properties of Euro slate together and learn how to properly cover a roof with ondulin.
Ondulin roofing can be very attractiveProperties and choice of ondulin
Ondulin as a roofing coating has a number of undoubted advantages. Produced by the latest technologies Based on bitumen resin mixed with cellulose and other additives, the material prevents the development of pathogenic microflora and is not of interest to rodents. Soft cover perfectly absorbs sound and noise from raindrops drumming on the roof, which will not be transmitted to living spaces. Its advantages are environmental friendliness, low weight and ease of installation. Comparative characteristics ondulin and other popular material - metal tiles are summarized in the following table:
| Comparative characteristics of ondulin and metal tiles | ||
| Comparative characteristics | Ondulin | Metal tiles |
| Useful width, cm | 83 | 110 - 112 |
| Sheet length, cm | 200 | 50 - 1000 |
| Coating thickness, mm | 2,4 - 3,2 | 0,45 - 0,5 |
| Assortment of colors | no more than 5 options | more than 40 options |
| Base for roofing material | preferably solid base | step lathing with a step equal to the wavelength of the coating | Moving is not recommended | Limited movement is allowed, preferably wearing rubber-soled shoes |
| Fire resistance | Flammable | Does not burn |
| Raw materials for production | Fiberglass impregnated with bitumen and additives of hardening resin and paint | Thin sheet hot-dip galvanized steel with polymer coating |
| Density, kg/m2 | 3,1 - 3,4 | 4,0 - 4,5 |
| Color fastness | Color fades and fades | Slight color change due to exposure to sunlight |
From comparison technical characteristics It can be seen that the materials differ slightly. Unlike metal tiles, ondulin is a flammable material, since its constituent components are easily flammable. This makes it impossible to use it in kindergartens, clinics and other similar institutions.
Many people have to decide which roof is better: metal tiles or ondulin? The answer depends on the specific conditions in which the operation will take place, design features buildings and many other factors.
Offer of ondulin in the store A roof made of metal tiles will last more than twice as long as one made of Euro slate. However, working with ondulin is much easier, it is easy to cut and lay, and it is impossible to cut yourself with it. The material consists of the following components:
- cellulose fibers;
- pure bitumen resin;
- polymer impregnating materials;
- fillers and coloring components.
To add strength to the dried cellulose base, high pressure and temperature are treated with a purified bitumen composition. It is applied on both sides, which gives the product good elasticity and hardness. The material has a number of undoubted advantages; you can put it on an old roof with your own hands.
There is also a variety of ondulin called onduvilla. Sheets of this material made in the form of transverse stripes and in appearance successfully imitate a roof made of natural tiles. You can see one example in the photo.
Installation of onduvilla roofing Calculation of the amount of material on the roof
It is not difficult to calculate how much ondulin to lay on the roof. Calculating the required amount of material is simplified if the roof was previously covered with gray slate. Standard sheets of ondulin correspond to it geometric dimensions, that is, they should be taken in the same quantity as regular slate.
In general, to determine the material needed to complete the work, it is necessary to divide the roof area by the usable area of one sheet of Euro slate, which is determined by multiplying its length by its width, excluding the amount of overlap. It is better to cover an old roof made of ordinary slate with ondulin, and the calculation here is the same.
Calculation of roof area complex shape can be done by remembering school course geometry. To do this, the surface is divided into trapezoids, triangles, squares and others. geometric figures, their area is determined by formulas and summed up. Having determined required quantity euro slate sheets, it should be increased by approximately fifteen percent to compensate for the inevitable trimmings. Fastening of ondulin sheets is carried out using special nails with wide rubberized heads, included in the delivery package of the coating.
What additional elements will be required?
When laying the material, they remain open spaces where adverse environmental influences are possible. In order to finishing has acquired an attractive appearance and to prevent leaks, it will be necessary to install so-called additional elements, such as wind strips, cornices, and valleys. They also perform decorative functions. Most high point building structure is a ridge that also needs to be protected with a specially designed element.
Installation of additional elements on an ondulin roof To equip it, ridge elements made of ondulin are installed with an overlap of at least twelve centimeters and fixed with nails in places of contact with the waves of Euro slate. Here you should lay a special duct tape, preventing snow from blowing in.
The roof ends along the gable overhangs (gables) can be covered with the same ridge profile or special elements can be used. They are mounted from bottom to top with an overlap of about 150 mm. A sealing tape is installed under the cornice and wind strip. It is also placed under the overhangs of sheets of material. This prevents snow drift and penetration into attic space small birds and flying insects.
Options for additional elements for ondulin and onduvilla The valley details are a mirror image of the ridge strip. Unlike other additional elements, the food is installed before the installation of the main covering sheets. Underneath it, a sheathing base is preliminarily constructed from two boards located along the valley line. It will also not be superfluous to lay a special waterproofing gasket under the valley.
Mounting elements for ondulin roofing Additional elements give the roof surface a complete appearance; they are manufactured using the same technology as the main material and have the same service life. Their color does not fade over time from direct sunlight.
How to properly cover a roof with ondulin with your own hands
In order to properly cover a roof with ondulin with your own hands, you must carefully follow all technological subtleties performing this work. This roofing material is flexible, so it is easy to install in difficult areas with bends and transitions. Laying is carried out according to the scheme on a pre-fabricated sheathing.
Should work in the absence atmospheric precipitation, but not in extreme heat, so in elevated temperature environment, deformation of the material occurs. In addition, when laying ondulin, you cannot walk on it, as it can be damaged under the weight of a person.
The resulting surface has high noise and sound insulating qualities. The light weight of Euro slate allows it to be transported to the place of work using passenger car, and installation can be carried out independently without the assistance of assistants.
Installation of roof sheathing
Before laying the sheets, the sheathing is installed. It is a structure made of wood for fastening roofing material. In addition, the problem of ensuring uniform load on the base from the weight of snow is solved. This is a very important stage in the work process.
The lathing for installation of ondulin is ready The material for the manufacture of the structure is conifers wood, since they contain a high percentage of resin, which prevents the development of decay processes. The wood must be well dried, and the humidity level cannot exceed twenty percent.
Installation of the roof sheathing is carried out taking into account the slope of the slope. If its value does not exceed ten degrees, then from wooden planks, particle boards or sheets of plywood, a continuous sheathing is made, since the structure in this case experiences heavy loads when snow and other atmospheric precipitation falls.
When the slope angle is more than ten, but less than fifteen degrees, the pitch frequency of the sheathing is allowed up to forty-five centimeters. Placing the boards in increments of sixty centimeters is done if the angle of inclination of the slope exceeds fifteen degrees.
Lathing can be done on an old roof To speed up and facilitate this work, a special template is made that allows you to install structural elements at the same distance and strictly parallel. The quality of the sheathing ultimately determines the service life of the roofing covering.
Scheme of laying ondulin on the roof
Laying ondulin on the roof is carried out according to a certain pattern. Installation always begins from the bottom with the sheets overlapping in one wavy bend of the coating. The first element is strengthened in such a way that its edge extends beyond the cornice by an amount sufficient to remove atmospheric moisture.
Sequence of installation of ondulin sheets Fastening is carried out using special nails; twenty of them are required for one sheet of euro slate. The fastening material is made of steel with carbon additives and is equipped with a rubber head. Starting from the second, all even rows are shifted and laid from half the sheet. According to this scheme, the roofing covering is installed (up to the ridge connection of the slopes).
Fragments of roof installation from ondulin and onduvilla An additional profile from the same company that manufactured the Euro slate is mounted on top of the ridge. Such profiles are installed on the valley, which is the joints of different surfaces of the coating. To ensure reliable waterproofing of roof overhangs, curved sheets of ondulin are nailed to the roofing board, or special gable elements are installed there. To complete the work you will need the following tools and materials:
- measuring tape, meter ruler and pencil for marking;
- hammer and hacksaw for cutting sheets;
- wooden beams treated with antiseptic;
- waterproofing material;
- drill and screwdriver for attaching the sheathing.
Installation of universal filler Maintenance of the finished roof
Caring for a roof covered with ondulin is not particularly difficult. To extend its service life, the coating should be regularly cleaned of dirt and debris. Over time, a change in the original color of the surface may occur. To restore attractive appearance The coating is painted. Following these simple care rules will allow you to achieve a long service life without loss of performance:
- produced in spring and autumn visual inspection coatings;
- overgrown tree branches that can cause damage are cut off;
- it is necessary to clean the roof of leaves that have fallen in autumn, as they may begin to rot;
- should be kept in perfect condition drainage system, since it does not allow moisture to accumulate on the roof elements.
Onduvilla coating imitates natural tiles well Concluding the above, we note that the name “Ondulin,” which is somewhat unusual for a Russian person, is the name of a French company that began producing this material immediately after the end of World War II. The post-bust construction boom made the low-cost roofing product phenomenally successful, and the company greatly expanded its production capacity.
In 1994, an ondulin production line was launched in Nizhny Novgorod; the quality of the products produced there is no different from the original ones. High performance characteristics This material has been tested by time, and it enjoys great success in the domestic construction market.
