What is better for roofing roofing material or

The choice of roofing material is a responsible decision on which reliability, durability, as well as ease of use and maintenance of the roof depend. Some builders in the old-fashioned way use such time-tested roll coverings as roofing felt, they are confident that the performance characteristics allow using this inexpensive material for all types of waterproofing works. More progressive masters prefer more expensive, advertised hydroisol, which has not yet had time to show itself in action. In this article we will try to understand which of these materials is better, what are their features and disadvantages.

The composition and properties of roofing material

Ruberoid is a roofing material that has been used for over 100 years. It is made from roofing cardboard, impregnated according to a special technology by products of oil refining. It is highly resistant to moisture, temperature extremes, UV exposure. Roofing material is produced as follows:

1. Roofing cardboard with a density of 200-420 g / m2 is immersed in a mixture of low-melting petroleum bitumen for some time (30-60 seconds) necessary for impregnation. The base should be soaked, but not soaked, so the immersion is short-lived.
2. On both sides of the impregnated cardboard coated with refractory oil bitumen. This layer should smoothly cover the entire surface, it protects the roofing material from moisture penetration, the impact on the base material of high and low temperatures. For more expensive brands use a mixture of petroleum bitumen, polyester resin and synthetic rubber, which are better resist moisture.
3. Top ruberoid sprinkled with a dressing dressing. It is made of granite or marble chips, quartz sand. The dressing is applied while the bitumen coating is still warm and not hardened. This layer protects the material from mechanical damage, moisture and sunlight. Some manufacturers produce roofing felt with colored dressing, which increases the reflectivity of the roof.
4. On the lower side of the material is applied a sprinkling of materials from the fine fraction (talc, talcomagnesite, chalk). It prevents sticking of layers of roofing material in a roll, facilitating its unrolling.

Note! According to GOST for this type of product, roofing material is divided into roofing and lining. Lining marks are made on the basis of thinner cardboard, has no reservation for dressing, and also costs less. Roofing marks are better suited for roof overlapping, as they are stronger, more reliable and protected from external influences by sprinkling a large fraction.

The advantages and disadvantages of roofing felt

The use of roofing material for the construction of the roof has a nearly century history. Therefore, most builders trust this material, successfully passed the test of time and the harsh Russian climate. In addition, the inexpensive price made the ruberoid roofing accessible to all. Among the advantages of this coverage are:

• High tensile strength. This indicator is important for the arrangement of the roof, as wind gusts easily tear the material from the slopes. Such a nuisance will not happen with roofing felt, as it is a very durable material.
• Water resistant. Roofing material perfectly protects the house from penetration of thawed and rain water, keeping this ability throughout all term of operation.
• Easy installation. Roofing material comes in the form of rolls with a width of 1 m and a length of 10-25 m. It is easily mounted on the roof by fusing or pasting.
• Large selection of material. Construction stores offer roofing material of different types, differing in technical characteristics and even appearance. Now it is produced with colored sprinkles, highlighting favorably against the background of dark-gray monotonous counterparts.
• Long service life. The roof of this material will last 15-25 years. And in case of damage to the roof, you can quickly and inexpensively make a patch of the same coating.

Professional roofing masters, consider the main drawback of this material - fire hazard. Ruberoid can not isolate pipelines, as it can catch fire. It should be used with care on the roofs through which the chimneys of solid-fuel stoves, fireplaces, boilers are removed. To protect the roofing material from fire, you need to use fire-resistant penetration and install a spark detector.

Characteristics of waterproofing

Gidroizol - modern waterproofing material, which is also used to overlap the roof. We can say that it is an improved analogue of roofing felt, which has fewer flaws. Gidroizol produced in rolls, whose width is 0.95 cm and a length of 10-20 meters. The quality of this waterproofing material is regulated by GOST-7415-84. High-quality waterproofing has a flat, ugly surface. If you look at the cut of the coating, it should be black. Gidroizol consists of the following components:

1. Base. Glass fiber or fiberglass is used as the basis for the production of this waterproofing material. It is thinner, but much stronger than roofing paperboard, therefore waterproofing is considered a more reliable coating.
2. Impregnated from a mixture of petroleum bitumen and synthetic rubber. Impregnation of fiberglass with these highly viscous substances protects the roof covering from liquid penetration.
3. Polymer film, which increases the resistance of the material to external influences.
4. Coarse-grained mineral dressing. From the upper side, the waterproofing is sprinkled with a coarse-grained dressing made of stone, granite or marble chips, which is called reservation. It protects the material from mechanical damage.

Important! Manufacturers produce waterproofing, intended for roofing and waterproofing. They differ in performance, price, presence or absence of dressing. Roofing stamps of this material are more expensive, but when used on the slope of the roof they last longer and also do not need frequent repairs.

Advantages and disadvantages of waterproofing

Hydroisol is different from roofing material by the material from which the base of the coating is made. Fiberglass or fiberglass better tolerate temperature extremes, have a higher elasticity and plasticity. Therefore, in comparison with cheaper roofing material, hydroisol has the following advantages:

• Larger temperature range. This material can withstand low subzero temperatures, as well as high temperatures without the formation of cracks and bubbles.
• Lack of tendency to rotting. In contrast to the roofing paperboard, which is essentially cellulose, fiberglass does not rot, like the other components of waterproofing.
• Greater tensile strength. Gidroizol is much stronger than roofing felt, it is not afraid of mechanical damage and wind load.
• Long service life. A single layer of hydroisol serves at least 25 years, and a multilayer coating of this material has a service life of 50 years.
• Installation of a waterproofing, in difference from roofing material, is carried out at any temperature as it does not burst during bending at a temperature of-5 degrees. This makes roofing possible in the winter.
• The roof made of waterproofing is less “noisy” during rain or hail, which increases the comfort of using such a structure.

Important! Gidroizol belongs to the class of combustible roofing materials, however, it is better tolerate high temperatures. When the temperature rises to 80 degrees, it does not deform, does not leak, is not prone to spontaneous combustion.

Comparing roofing of roofing material, we can say that the disadvantages of this material are covered by low cost. With the help of waterproofing, you can create more durable and reliable coatings that cost the homeowner a bit more expensive.

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