Bitumen mastic for roofing: features

Modern inhabitants do not know some building materials. For example, it is not at all surprising that for most citizens, the word "bitumen" is associated only with the laying of roads. In fact, they use a special composition, based on oil derivatives. While bituminous materials have a much larger field of application, it is worth considering such a variety as cold bituminous mastic for roofing. Such a question can be called very relevant, because sooner or later in the repair of soft roofs there is an urgent need.

Bituminous mastic: characteristics

Bitumen mastic for the roof is a durable and durable material, quickly hardening without additional heating. This is one of the best tools that can act as a highly effective waterproofing coating. In addition, it can show its stunning qualities and on wet surfaces. Bitumen mastic for the roof is very qualitatively attached to the base layer. It is able to provide protection against weak acids, water, and various unfavorable weather conditions at any time of the year.

Bituminous mastic: application

This material is used in a fairly wide range of works. As the basic directions it is possible to name such functions: gluing to bases of different types of roofing coverings; Bonding layers of roofing cardboard to hydrophobic insulation; Formation of monolithic waterproofing coatings. To repair was the highest quality, you should follow certain instructions.

Bituminous mastic: rules of use

First you need to prepare the surface. It should not have frost or dust. It is important to remove the surface from standing water. All metal elements should be free of rust and dirt. Slots and a variety of rough surfaces should be treated with cement mortar. Absorbent and unprotected surfaces should be treated with special materials. Bitumen mastic for roofing should be used in cold condition. Apply the material by means of a spatula or a roofing brush. The next layer is superimposed only on condition that the previous one is completely dry. After this, it will be possible to glue the parts of the roofing material to the substrate or one to the other. The glue should be completely evenly distributed over the surface of the roofing material. After a while, usually 20 minutes, you can press the material as tightly as possible to the mastic.

In the event that the primer had time to dry, it is possible to apply 2-3 layers of mastic, while the consumption per layer is 1.5 kg per square meter. Each new layer is applied across the previous one - this is a prerequisite. This is the only way to completely eliminate ruptures in isolation. Bitumen mastic for the roof, whose price ranges from 200 rubles per kilogram, can be consumed in the amount of 3-4.5 kg per square meter. It is important to constantly check the thickness of the layers, as well as to monitor how the building material is spent.