A ruberoid roll, the size of which can be different, can be purchased today at any hardware store. This material is used when carrying out roofing, it is perfectly waterproof. The composition of the material contains roofing cardboard, as well as bitumen, which is used in two varieties. If you intend to use this material, then before this you should definitely consider its positive and negative characteristics.
Sizes and weight of a roll of roofing material
A roll of roofing material, the width of which can be equal to 1000, 1025, 1050 mm, has a weight ranging from 26 to 30 kg. This parameter may vary depending on the brand. In the production process, standards are used that do not allow deviations in width greater than 5 mm. Builders before purchasing the described material are also interested in how many meters are contained in a roll of this waterproofing material. Thus, if the material has coarse-grained sprinkling, then the length of the web in one roll is 10 m, while the dust-like coating is limited in the length of the roll is 15 m.
Before you buy a roll of roofing material, you should study its size. This indicator sometimes depends on the brand of material. So, if the marking is indicated by the abbreviation RPP-300, as well as RPE-300, then the length of the web is 20 m. Such roofing material is the thinnest coating. The thickness of the web is also important. If you need roofing material for work, then you need to take one that has a thickness of 3-5 mm, whereas in the case of litter material, this figure is 2.5 mm or more.
Features of the composition
At the heart of absolutely all varieties of roofing material is cardboard, but it can vary in density. If we are talking about roofing waterproofing, then it is much higher and equal to about 350-400 g / m 2 . To guarantee better adhesion to refractory bitumen, cardboard is processed with low-melting bitumen. This, among other things, increases the moisture resistance qualities of this layer.
It should also be noted that the top layer of the material has a coating in the form of difficult to melt bitumen, which is mixed during production with plasticizing mineral additives. The final layer of various grades of material can be made of talc, which is a dusty powder. As an alternative, coarse sand is sometimes used, which is a coarse sanding.
A roll of roofing material, the size of which is indicated above and is important for the master, has a lower cover layer, which contains the same bitumen that is difficult to melt and has additives. Sprinkling the bottom layer of any brand consists of talc and mica, this composition prevents the layers of the roll from sticking together during storage.
Roofing marks
If you are interested in the question of how many meters are in a roll of roofing material, then you need to consider different brands and features of each of them. So, depending on the sprinkle used during the production process, material with coarse and scaly sprinkling is produced from the conveyor. The weight of one roll of ruberoid with coarse-grained topping is approximately equal to 30 kg, while the length is limited to 10 m. This type of insulation is laid on a cold or hot type of mastic. Sprinkling can also be scaly. If we are talking about a one-sided roll, then the weight will be 20-28 kg, and the length will be 20 m.
As for the double-sided material, its weight in a roll will be 26-32 kg. The length will remain the same. If you decide to use a one-sided roll, then its installation can only be done on hot mastic, while a two-sided one must be laid on top of cold and hot mastic.
Quite often, masters are interested in how many meters are in a roll of roofing material, which has fine powder. The length remains equal to 20 m, while the weight varies from 20 to 26 kg. Material is laid on hot or cold mastic.
Characteristics of roofing material
The properties of roofing material may vary, this determines the type of material. For example, if we are talking about roofing material, which is produced under the marking RKP-350, then it will be based on cardboard processed on 1 m 2 350 g of bitumen. It can only be used when waterproofing, since talc is used as the top layer. You can use it in the role of the lower layer in the arrangement of the roof. Its cover weight is 800 g / m.
Characteristics of roofing material RPP-300
This brand is often considered identical to the previous one. This material is used for the mentioned purposes, but this type of roofing material has not so impressive characteristics. The breaking strength in this case is 22, not 26 kgf. However, the weight of such a roll will be less, sometimes it is important when arranging the roof. On 1 m 2 such material will have an effect in 500 g.
Characteristics of roofing material grade RPP-200
Roofing material, GOST which is indicated by the numbers 10923-93, can also be produced under the marking RPP-200. It is used in the arrangement of the roof, as well as basements. It is based on cardboard, which is coated on both sides with talcum powder, as well as oil bitumen. Due to the application texture, this type of roofing material has excellent flexibility when compared with other similar materials.
Characteristics RM-350
The width of the roofing material is already known to you, now you can pay attention to the fact that there is a PM-350 brand. This material does not retain heat so well compared to others. The coefficient of water absorption is 40 g / m. But the cover layer is 1600 g.
Ruberoid is not hazardous to health, but it is worth checking the certificates of conformity. The service life will depend on the modification and proper installation. Thus, this period can be equal to 12-30 years.
The cost of roofing material
If you decide to choose roofing material for roofing, the price of the roll should be interesting to you. It will vary by brand and manufacturer. The average price of roofing material RKK-350 will be approximately 290 rubles per roll. If you purchase material of the RPP brand, then it will cost you 300 rubles per roll. But roofing material RKK-400 will cost 400 rubles per roll.