Before buying any other material, it is worth considering several factors. First, collecting all the loads acting on the roof, it is important to calculate the total weight of the "pie", which includes a lot of insulation, rafters, crates, etc. The normative cover of snow is also included here( it can be as much as 100 and 180 kg / sq. M.) And wind power.
Secondly, the architectural solution of the structure itself, shape, dimensions and design features. For example, if you intend to buy tiles, then it is important that the roof slope is at least 30-35 degrees. Thirdly, the parameters of durability and fire resistance are taken into account. It is clear that for buildings with different functional purposes there will be a lifetime.
For a shed or utility room, you can choose not so durable material. For the house, something better is desirable. Therefore, they look at the approximate lifetime. The longest is slate roof, about 150-200 years. The second place is taken by natural tile - 100-150 years. At the third folded, steel roof and corrugated board - up to 50 years.
The fourth place is slate, metal and soft tiles. Their service life is 30-50 years. Well, they close the list of bituminous wavy sheets, which will last for an average of 15 to 25 years.
Types of roofing materials for pitched roofs
As already mentioned, roofing insulation materials are selected depending on the construction of buildings and structures. For pitched roofs, you can buy natural tiles( cement-sand or ceramic), soft tiles( flexible and bituminous), metal sheets, metal tiles, light-transmitting, bituminous and non-metallic wavy sheets.
The most popular is natural tile, which has a small expansion coefficient, so the possibility of crack formation is excluded. Also it is able to calmly perceive various deformations associated with wind pressure and draft of the building. Other advantages include durability, fire resistance, aesthetic appeal.
Roofing sheets, depending on the material from which they are made( bituminous, nonmetallic, metal), have a different service life. But, in general, it is much less than the period of operation of natural tiles. On average, it is 15-20 years. However, despite this, they attract consumers, first of all, their appearance. After all, with their help you can realize almost any design projects.
Types of roofing materials for flat roofs
Two types are conventionally distinguished: soft bituminous and waterproofing materials for roofing. The first type is made on the basis of organic binders and bitumen, it can be sheet and roll. In comparison with traditional bituminous materials, this modified product has a slowed down rate of aging. Therefore, the term of its operation is greater. In addition, it is also heat-resistant insulating materials.
Waterproofing materials for roofing are divided into 3 main groups: single-layer membranes EPDM and PVC, directional and bitumen systems, liquid mastics. The first greatly facilitate the installation process and increase its reliability( thanks to a single-layer structure).The second fit more difficultly, in several layers, because in their design resemble a classic roof. Well, the third do not require any professional labor( they are painted like paint).
