Ruberoid is a roofing and waterproofing material that has been used in construction for many decades. It can be a moisture-proof part of the roof or as an independent lining of the roofs of small buildings.
There are many types of roofing material, each of them has its own purpose. Today I will tell you about all these brands, their characteristics, disadvantages and advantages.
Varieties of waterproofing
Roofing felt in most cases is used as a cladding for the roof. As moisture insulation, only rolls with special markings can be used., indicating the method of their production.
Production and release form
Roofing material is produced by impregnating roofing paper with low-melting petroleum bitumen. Then the cloth is covered on both sides with refractory bitumen. Last of all, it is sprinkled with talc, asbestos, small gravel, etc. The sprinkle protects the canvas from sticking together.
Roofing material is produced in rolls, the width of the web can be:
- 105 cm;
- 102.5 cm;
- 100 cm.
Occasionally, manufacturers change specifications and produce panels of a different width.
Many people confuse roofing felt with roofing material. But they are different materials. What is the difference - roofing felt and roofing material?
Tol is a type of rolled moisture insulation, the impregnation of which is carried out not from bitumen, but from tar or coal compositions. These panels are short-lived and are used for roofs of temporary buildings. Now roofing felt is unpopular and practically not produced.
Material classification
Ruberoid is classified according to several parameters. First of all, by purpose. There are two known types:
- roofing roofing material - top.
- lining analogue - lower.
The roofing material is also divided according to the applied dressing:
- Dust coating - talc or chalk. It is applied on both sides of the panels. The manufacturer's instructions warn that such material should only be used to equip the bottom layer of the roofing pie.
- Quartz sand. In most cases, it is applied to both sides of the panels.Material with such a coating is used for moisture insulation or as the bottom layer of the roof.
- Scale bedding of slate or mica. It is applied both from two and from one side of the panels. Roofing material with a similar dressing is used as the top layer of the roof.
- Ruberoid with stone chips on the front side and a dusty coating on the bottom. Such products are used only as the top layer of the roof.
- Coarse bedding. It is distributed only on one side. Such canvases are universal, can be used both as a roof covering and as a waterproofing.
According to GOST, the thickness of the roofing material intended for roofing should be 4–5 mm. The lining analogue should not be thicker than 3.5 mm.
Roll marking
Each roll is marked with an alphanumeric group. She talks about his characteristics.
- The first is the letter R. She indicates that the roofing material is in the roll.
- Second letter K or P indicates the type of material - roofing or lining.
- Third letter says about the type of topping:
- TO - indicates a coarse-grained coating.
- M - speaks of a fine-grained protective layer.
- P - means dusty topping.
- H is the scaly layer.
- Then comes the three digit. It indicates the density of the roofing material in grams per 1 m².
- The last one can go additional marking:
- Letter E means elastic roofing material.
- Letter C - indicates colored sprinkles.
I will give an example of what marking is: RKP-350-Ts.This means that the roll contains roofing felt with colored powdered powder. The density of the material is 350 g/m².
Features of material grades
Most wanted brands traditional roofing felt:
- RKK-350;
- RKP-350;
- RKK-400;
- RPP-200;
- RPP-300;
- RPM-350.
RKK-350
This is a roofing material with coarse-grained protection. The density of the cardboard is 350 g/m². This brand is waterproof, it has heat resistance up to +80 °C. There are 10 m in a roll of such roofing material. It costs 270–280 rubles. It is used for arranging the top layer of the roof pie.
RKP-350
This is a roofing felt with a powdered top layer. Density - 350 g / m². It is waterproof and weather resistant. Each roll contains 15 m of canvas. It costs 220-230 rubles.
It is used for waterproofing and as a lining for the bottom of the roof pie. It can also be used as a roof covering.
RKK-400
These are thick (5 mm) waterproof sheets for roof cladding with a coarse-grained protective layer. The density of its cardboard is 400 g/m².
In a roll of 10 m. Such a package costs 280–300 rubles. RKK-400 is used as the top layer of the roofing pie.
RPP-200
This is a lining with dust protection. The density of its cardboard is 200 g/m². The panels have excellent waterproofing qualities.
The roll contains 15 m of roofing felt. The price of a package is 220-230 rubles. RPP-200 is used as a waterproofing, as well as the bottom of the roof pie.
RPP-300
This is a lining product with powdered dressing. The density of its cardboard is 300 g/m². The sheets have good waterproofing characteristics.
In rolls of 15 m, they cost 320 rubles. RPP-300 can be used as a waterproofing or as the bottom layer of roofing roofing.
Traditional roofing material is not intended for continuous operation. With proper installation, as a lining, it will last no more than 10 years. As a roofing cladding, it will become unusable even earlier.
Modern improved types of coverage
Modern types of roofing felt on the roof are more perfect and differ from the traditional counterpart in their composition.
Liquid rubber
Liquid roofing felt is a cold-applied waterproofing and roofing product. Its components are rubber, petroleum bitumen, polymeric and mineral additives, as well as plasticizers.
Technical characteristics of liquid rubber allow you to use it:
- for waterproofing foundations, plinths, hydraulic structures (fountains, pools, etc.);
- as corrosion protection for metal structures and structures;
- for roof cladding.
Advantages of liquid rubber:
- Ease of installation. The composition does not need to be warmed up before application. It is distributed over the base with a brush, roller or sprayer.
- Durability. The dried liquid rubber is a monolithic finish with high adhesion to the substrate. This cladding lasts 20 years or more.
- High maintainability. If the integrity of the cladding is compromised, the damaged area is removed. Next, the removed piece can be melted and the damage repaired.
Welded coating
The built-up coating is often called euroroofing material. Its basis is not cardboard, but polyester, fiberglass or fiberglass. It is impregnated on both sides with polymer-bitumen mastic. Then the panels are protected with a fine-grained dressing.
The heat resistance of such a lining is + 100–140 ° С. The built-up roofing felt is produced in rolls, 10 m long and 1 m wide. One package costs 1200 rubles. The term of operation of euroroofing material is from 20 years and more. Before laying such a coating with your own hands, its lower polymer-bitumen layer is melted.
The weld material can be used:
- when arranging a roofing pieas its cladding, waterproofing or lining;
- as waterproofing of all elements of buildings, as well as reinforced concrete structures and structures.
Analogue with reinforcement
Reinforced material is used if additional mechanical strength of the waterproofing is required. Its basis is fiberglass reinforced with a plastic mesh.
Both sides of the canvases are covered with polymer-bitumen mastic. As a protective layer, scaly shale or fine-grained granite dressing is used.
These thick (5 mm) panels are able to withstand high loads. Thanks to the reinforcement, they are evenly distributed over the canvas. Reinforced rolls are most often used as roof cladding. The service life of such waterproofing is not less than 15 years.
Self-adhesive material
Such a roofing material is a bitumen-polymer membrane.It can be used as a moisture protection of building elements or roof lining of temporary buildings. It is applied where it is impossible to use the built-up analogue.
To install the canvases, you just need to remove the protective film from their underside and lay them on the prepared base. The service life of the self-adhesive coating is up to 10 years.
Conclusion
Ruberoid is an inexpensive and quite effective moisture-proof and roofing material. There are many traditional brands and more modern types. When choosing one or another type of canvas, consider their purpose.
The video in this article will tell you even more about roofing material. If you have any questions, ask them in the comments.
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