Along with the well-known flexible tiles, very often roofing material is laid on the roof of small buildings, which allows protecting the inside from moisture penetration. In addition, this material is used for waterproofing foundations and other structures. For several decades now, it has shown itself from the best side, providing reliable protection at an affordable price. In addition, the laying process is not an intricate soft roofing device. The technology is quite simple and reliable, so it is possible to organize waterproofing in a short time. The disadvantages include not very long service life and the lack of numerous design options.
Roofing material is obtained by impregnating the surfaces of special cardboard with various bitumen. Products used to organize the roofing carpet usually have a front surface with a layer of coarse-grained dressing. As a rule, they are not used in the lower layers of the heat-insulating layer. As for the width of the canvas, it can be completely different. However, rolls from 750 to 1050 mm are most often produced. When coordinatingactions with the customer, manufacturers are able to change the dimensions.
Today, roofing felt is only one of the varieties of bituminous roofing materials. There are more than sixty items of similar products. Despite this state of affairs, they all have a similar chemical composition and manufacturing technology. A large number of residential and industrial buildings built in the postwar years have just such coatings. Another analogue of roofing material has also proven itself well. Rubemast is a build-up material supplied in rolls. The main difference from the above product is the presence of a saturated bitumen layer at the bottom of the web.
Although the technology of roofing is becoming more and more complex and technologically advanced every year, no one is going to refuse bituminous roofing materials, since in some cases their use is considered the best option. In addition, modified analogues and welded membranes appear every year. Increasingly, fiberglass or synthetics are used as the basis. Some of the representatives of bituminous products are practically out of use.
Once on the store counter, roofing felt should not have holes, cracks, folds and other flaws. A protrusion at the ends of the roll of more than 15 mm is not allowed. A batch is allowed to use no more than five percent of composite rolls. The cardboard base is completely impregnated throughout the entire thickness of the canvas. ATcut material should have a black color, turning into a brown tint. The presence of unimpregnated places on the surface of the product is not allowed. Each roll contains a packaging strip of paper with a width of at least 500 mm. Marking is carried out using a special stamp indicating the batch number, standard, year of manufacture and manufacturer's data.
