Up to 30% of the thermal energy can go out of a single-family house through the roof. Therefore, it is difficult to imagine a new building without attic insulation, which thus becomes functional. Here are the three most commonly chosen ways to insulate an attic. The order is not accidental!
Polyurethane foam
Polyurethane foam is still a relatively rare choice for attic insulation. The material has its advantages - it is a good thermal insulator and is easily applied with a special gun. The foam expands rapidly and penetrates into the cracks, preventing the formation of cold bridges. A relatively thin layer of insulation with a thickness of 20 cm is sufficient. So why is polyurethane foam not chosen more often? This is due to the high unprofitable costs of such investments.
Insulation of the attic with expanded polystyrene
Styrofoam is also a decent thermal insulator. However, more often than in the attic, we can find it on the exterior walls of the building, where it is not the first choice anyway. Although styrofoam has decent thermal insulation properties, it should be remembered that it is a material devoid of elasticity. Therefore, in practice, it is risky to insulate a pitched roof with them. In addition, polystyrene is not a non-flammable material, besides, it does not insulate well, which in the case of an attic practically disqualifies it. After all, the comfort of residents is determined not only by the optimal temperature, but also by the absence of extraneous noise.
Mineral wool is the most common choice for attic insulation
The most common choice for attic insulation for many years has been mineral wool. Why? First of all, insulating wool has excellent thermal insulation properties, characterized by a thermal conductivity coefficient even D = 0.032 W / mK. In addition, mineral wool is a non-flammable material, which means it is very safe, and also has excellent sound insulation. The ease of installation and transportation of lightweight glass wool is also important.
The rolled-up material is enough to unpack it so that it quickly reaches the desired shape. At the same time, the wool is very elastic, which makes it perfectly fills in the irregularities characteristic of pitched roofs. The assembly takes place in two stages. The first layer of mineral wool is laid between the roof rafters, which, taking into account the delicate stock, does not require additional hooks. The second, transverse layer of wool is supported by special scaffolding.
The attic insulated in this way has been performing its function perfectly for many years, so relatively cheap and very effective mineral wool will remain the first choice for a long time when warming the attic. Buy Samarkand tour packages
