Before proceeding directly to the description of various types of mastic and its characteristics, I suggest first to get acquainted with the main elements of buildings and structures where it can be used (roofs, walls, foundations, foundations, etc.). Grounds are called soils that are used for construction purposes; in other words, this is the place that contains the upper layers of soil and on which construction will be carried out. Foundations - this is the lower, underground part of the building, which is located at a certain depth. The waterproofing of the base or foundation is carried out using mastic, waterproofing is done in places where the basement wall and the foundation are joined, or in the corner between the basement and the floor slab.
The importance of roofing
But the main place where mastic is used is the roof. It is indispensable for roofing. The roof is called the enclosing part of the building, which protects the structure from environmental influences, and it is also a supporting element. Despite the diversity, most of them require special waterproofing works, which relate to the roofing cycle, which, in turn, is an important part of any construction process.
Various substances can be used as a waterproofing material , but bitumen mastic is the most common of them. In fact, a mastic roof is a kind of waterproofing carpet, which can contain from 2 to 4 layers of this material.
What is bitumen mastic ?
This is a mixture that has the consistency of a thick paste, which consists of complex polymeric materials of high density. Subspecies is bitumen mastic. It is used for roofing. Bitumen mastic is intended both for the device and organization of the roof, and for its repair. Representing a complex one-component bitumen-polymer composition, it is already ready for use.
Application
Bituminous waterproofing mastic is used if the following is carried out:
- The device of the roof.
- Repair and restoration work (filling cracks, etc.).
- Filling of butt joints, i.e. those in which there is a butt joint of vertical and horizontal structural elements, as well as various shaped parts.
- Reliable sealing (protection against penetration of air and water) of shaped elements of the building.
- Waterproofing of metal structures.
As for direct application, the bitumen roofing mastic can be applied in cases where its temperature is more than +15 degrees Celsius, and the ambient temperature is in the range from 10 to 50 degrees Celsius.
Often, it is already ready for use, but in some cases it can be diluted with gasoline or toluene, but on the condition that their share will not exceed 20% of the total mass of material applied to the roof. The mastic is applied using a special wide construction spatula or by spraying.