Ruberoid blanket: selection and installation of the material on the roof

Your roof’s longevity and durability depend on the roofing material you choose. A well-liked choice is the inexpensive and simple-to-install Ruberoid blanket. Ruberoid blankets, which are made of felt that has been impregnated with asphalt, have good waterproofing qualities and can be used for a variety of roofing projects.

Think about things like your budget, the slope of your roof, and the local climate when choosing a ruberoid blanket. There are various ruberoid grades and thicknesses that offer different levels of weather resistance and durability. In general, thicker blankets offer superior defense against inclement weather and ultraviolet radiation.

Ruberoid blanket installation calls for thorough planning and adherence to industry best practices. Make sure the roof surface is clear of debris, dry, and clean before proceeding. Make sure the blanket is properly aligned and secured to avoid any gaps or wrinkles that might reduce its effectiveness. To ensure that the blanket is securely fastened in place, use the adhesives or fasteners that the manufacturer recommends.

Although relatively simple, maintaining a ruberoid roof is crucial to extending its life. Frequent checks for wear and tear indicators, like cracks or lifting edges, can aid in the early detection of problems. It is essential to make timely repairs with appropriate materials to stop water intrusion and structural damage.

It is important to comprehend the material’s durability, weather resistance, and ease of application when selecting and installing a Ruberoid blanket for your roof. This post discusses important aspects to take into account when choosing a Ruberoid, provides helpful installation advice, and emphasizes the advantages of this product in terms of dependable weather protection."

Features of roofing material

A melted soft canvas rolled into a roll is called a ruberoid. Its primary component, fiberglass or roofing cardboard, is coated with a modified refractory bitumen on the outside and inside, and is then dusted with specialty crumbs during the bitumen processing process.

One way to sprinkle roofing material is:

  • coarse -grained – created from stone crumbs and provides reliable protection against weather phenomena, which is why it is used as the upper layer of the soft coating;
  • scaly – it turns out from mica shale and poured onto the front side of the coating;
  • fine -grained – is a sand that serves as protection exclusively for waterproofing or lining material;
  • dusty – consists of chalk or talco and is most often used as a shell for the wrong side, which does not allow the layers of the roof to stick together.


The standard thickness of the roofing material is 3.5 mm for the lower layer of the roof pie and 4–4.5 mm for the outer layer, per the standards. Rolling material sprayed with fine-grained or dusty sprinkling is thinner when it is placed on the roof first.

The soft coating of the roof cannot be made resistant to moisture, mechanical forces, or deformation in the event that the guidelines for selecting the thickness of the roofing material are departed from.

The life of the roof and the angle of inclination determine the thickness of the multilayered roofing material. For instance, two layers of soft material are required for a roof that is angled between 10 and 30 degrees and is intended to last for at least five to ten years. A thick coating consisting of three or four layers is required for a surface that is gentle.

Regardless of the angle of its inclination, the temporary structure’s roof may only have one layer of roofing material applied to it.

On GOST, roofing materials come in widths of 100, 102.5, and 105 cm. The material is interpreted as a marriage if this value deviates by less than or more than 5 mm.

Advantages and disadvantages of roofing material

One benefit of roofing material that stands out in particular is:

  • low cost;
  • water resistance;
  • the ability to drown out the noise of rain and the sound of hail;
  • The strength in aggregate with flexibility, which is why the material is not torn and easily laid on the roof;
  • low weight that facilitates transportation;
  • A variety of species that allows you to choose the most suitable coating.

The following are some roofing material drawbacks:

  • a relatively short service life (except for Euro -Ruberoid);
  • the need to periodically eliminate leaks;
  • the obligatory device of frequent crate for the material, which requires large costs;
  • The requirement to glue some types of coating on the bitumen mastic, which in hot weather can soften and lead to loss with a roof of tightness;
  • the need to put in several layers, otherwise the roof will turn out to be unreliable.

Types of roofing roofing roofing

Roll roofing materials should be selected based on their composition, qualities, and lifespan.

Table: main varieties of roofing material

Construction raw materials Compound The main characteristics Service life, years
RUBMAST Cardboard saturated with modified bitumen with an admixture of minerals, granite crumbs Density -2000 g/m², plasticity at a decent level, the ability to withstand up to -15 ° C, installation without the use of bitumen mastic Up to 15
Glass Dense fiberglass or polyester with plasticizer, roofing bitumen and special additives Density -3000–4000 g/m², the ability to withstand up to -15 ° C, resistance to temperatures up to +85 ° C (within two hours) More than 15
Euro -Ruberoid Strong fiberglass, a mixture of bitumen with synthetic rubber, enhancing the water -repellent properties of the material, mineral crumbs Resistance to frosts up to -30 ° C, the ability to serve, heated to 80 ° C From 20 to 30
Self -adhesive roofing material Cardboard, bitumen, sprinkle, special etheric fabric with a film that comes off when laying the coating Flexibility and high strength (in comparison with the melted materials) More than 10

Brands of roofing roofing roofing

Not only should the type of roofing material be chosen, but also the brand, which is a string of letters with a specific value, as stated on the roll:

  1. The first in the marcking of the roofing material is always the letter "P", which means that we have before us roofing ground.
  2. The second sign in the abbreviation informs about the function of the roll canvas:
  3. "K" – roofing;
  4. "P" – lining.
  5. The third letter in the marking is reported by the composition of the sprinkle:
  6. "K" – coarse -grained;
  7. "M" – fine -grained;
  8. “P” is dusty;
  9. "H" – scaly.
  10. There are additional letters in the marketing of the roofing material:
  11. "C" – color sprinkling;
  12. "E" – elastic material.

For instance, the acronym RPP indicates that our roofing material has a dusty sprinkler system.

There are always numbers on roofing material rolls next to the letters that indicate how much cardboard there is in one square meter.


RPP-300 roofing material is based on cardboard and has a density of 300 g/m². It serves as lining material beneath the external roofing canvas and has dusty sprinkling. The primary attributes of the roll are:

  • length – 20 m;
  • width – 1 m;
  • Coating area – 20 m²;
  • Weight – 25 kg.

The RPP-300 brand’s dusty coating is made of chalk and talcomagnesitis, which prevent the soft roof’s layers from adhering to one another without compromising the material’s resistance to moisture or mechanical harm.


The abbreviation RKP-350 indicates the roofing material, which implies that the canvas should be laid outside the roof as long as it will be given extra protection (i.e., covered with another layer of material).

The RKP-350’s material is distinguished by the following signs:

  • weight – 24 kg;
  • water absorption during the day – 2%;
  • length – 15 m;
  • Coating area – 15 m²;
  • Width – 1 m.


Because RKK-420 roofing material is composed of highly dense cardboard, it is used as a finish flooring for soft roofs. Because this material is covered in a coarse-grained sprinkle, cracks won’t show up anytime soon, and bad weather won’t be too bad for him.

The following features of roofed roofing roofing card with a large granule sprinkle and a cardboard density of 420 g/m² are present:

  • length – 10 m;
  • width – 1 m;
  • Coating area (one roll) – 10 m²;
  • weight – 28 kg;
  • Water absorption during the day – 2%.

Table: Review of roofing rates

Mark Ruberoid Appointment Cardboard brand Sprinking Rolon area (m²)
Switching roofing material with dusty sprinkle
RPP-300 For the lower layer of the roof pie 300 Luxury on both sides 20 ± 0.5
Ruberoid lining elastic with dusty sprinkle
RPE-300 For the lower layer of the roofing pie in the Far North areas 300 Luxury on both sides 20 ± 0.5
Roofing roofing roofing roof with coarse -grained sprinkle
RKK-420 For the upper layer of the roof pie 420 Coarse -grained on the front side of the canvas and dusty – from the wrong side 10 ± 0.5
RKK-400 400
RKK-350 350
Roofing roofing roofing with scaly sprinkling
RKCh-350 For the upper layer of the roof pie 350 Scaly on the front side and dusty – from the wrong side 15 ± 0.5
Roofing roofing roofing with dusty sprinkle
RKP-350 For the upper layer of a roofing pie with a protective layer (put immediately before laying the finish material) 350 Luxury on both sides 15 ± 0.5
Roofing roofing roofing room with colored mineral sprinkling
RC-400 For the upper layer of the roof pie in the southern regions 400 Color spilling on the front side and fine -grained – from the wrong side 20 ± 0.5

How to cover a roof roof roofing

The roofing is applied to the roof gradually. Under soft material, a unique wooden flooring is set up concurrently.


The following procedures are involved in building a soft roof:

  1. Fixation of the crate under the roofing room on the roof frame.
  2. Processing the base with a protective primer, which should penetrate all the cracks.
  3. Laying roofing material (with an overlap from 5 to 20 cm) using a bitumen mastic applied by a layer of 5 mm either to the entire area of ​​the roof, or only to the edges of the strip of material.
  4. Processing soft flooring with a thin layer of mastic and installation of the second layer of the roofing material perpendicular to the previous.
  5. Bending the edges of the soft coating under the overhang and their fastening with slate nails.
  6. Laying the next layer of material using mastic (if necessary, create a multi -layer roofing carpet).
  7. Fastening the finish layer of roofing roofs with woods of wood or metal plate.

Chat under the roofing material

The purpose of the structure—whether it is meant to support life or not—as well as the quantity of layers in the roof pie—which includes roofing material—determine the crate’s design.

A rarefied crate made of boards spaced 10 to 15 centimeters apart is installed especially for the roof of the economical building and the roof where the roofing material is placed beneath the sheet coating. In the latter instance, the main crate is mounted and sheets of finished roofing material are laid atop a counter that is set up at intervals of 50–60 cm on a soft canvas.

When a residential building is constructed, a continuous crate for roofing material is created that serves as the roof’s primary coating. Plywood sheets measuring one centimeter in thickness or boards 1.5–2 cm thick serve as the building blocks for this structure.

The crate needs to be built over-strength if the room directly beneath the roof will also be occupied. This requires using two layers of plywood, each measuring two centimeters in thickness. Using a continuous crate made of boards that are 30 mm thick is an alternate method.

Laying roll material on a wooden surface

On a wooden surface, roofing material flooring is available in two technologies: perpendicular to the skate and parallel to it.

There are two circumstances in which the roofing material strips can be installed along the ridge board:

  • The material serves as a hydraulic barrier of rafter legs and a substrate for the finish coating of the roof;
  • The soft canvas must be laid into 2-3 layers, and each time in different directions.

If the method of laying the roofing material parallel to the skate proved to be appropriate, installation work can be carried out as follows:

  1. Starting from the cornice board, cover the roof with stripes of the material in the horizontal direction, making overwhelming over 5 cm.
  2. Nail the canvases with nails or glue them with each other with a mastic.
  3. Cover the roof with the second layer of material so that the next strip of roofing material is located parallel to the skate, blocking the joints of the paintings of the first layer, or were perpendicular to the cornice bar.

When the roller canvas is designated as the primary roof coating, the roofing material is installed throughout the skate. The steps of this process are as follows:

  1. The rafter system is closed with a dozen plywood sheets with a thickness of 1 to 1.6 cm or boards 1.5–2 cm thick.
  2. Using mastic or nails, overlapping the edge of the strips by 10 cm, the right amount of roofing roofing roofing roofs is glued to the wooden base. They start work from the leeward area of ​​the roof.
  3. The stripes of each layer of material are being developed to the other side of the roof so that the horse does not turn out to be vulnerable to moisture. With this laying method, you can do without a metal profile on the skate. The seams are pressed to the surface of the roof with a roller.
  4. Strips of the last stratum of the soft coating are bent under the cornice and fixed with a clamping rail and nails.
  5. To strengthen fastening, wooden rails or metal stripes are nailed to the finished soft coating.

Only one day after the first canvas is installed on the roof are the second and all subsequent layers of roofing material installed, covering the seams of the previously laid material. Mastic takes a very long time to solidify.

Video: How to lay roofing material on a wood crate

Selection of Ruberoid Blanket Installation of Ruberoid Blanket on the Roof
Consider weather conditions, roof slope, and durability. Clean the roof surface thoroughly. Lay the ruberoid, ensuring overlaps and secure edges.

Selecting the ideal ruberoid blanket for your roof requires taking into account a number of important variables. Determine the local climate conditions first and foremost. Whether it’s intense heat, freezing temperatures, or a lot of rain, different kinds of ruberoid are made for different climates. It is easier to choose a material that offers the best durability and weather resistance when one is aware of these conditions.

Next, consider the size and slope of your roof. The best type and installation technique for a ruberoid depends on how well water drains off the roof due to the slope’s angle. Furthermore, the size of your roof dictates the quantity of material you’ll require, which affects both the logistics of installation and your budget.

Ruberoid installation is essential to guaranteeing its longevity and efficacy on your roof. It is imperative that the surface be properly prepared, which includes cleaning and smoothing out any flaws. By doing this, the ruberoid is applied securely and uniformly, reducing the possibility of leaks or damage over time.

Finally, upkeep is essential to extending the life of your ruberoid roof. Frequent wear and tear inspections, particularly following inclement weather, enable prompt repairs to keep minor issues from growing into larger ones. You can make sure that your ruberoid blanket offers dependable security and comfort for many years to come by adhering to these recommendations.

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Alexandra Fedorova

Journalist, author of articles on construction and repair. I will help you understand the complex issues related to the choice and installation of the roof.

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