With the rapid development of urbanization, building energy consumption is increasing, and roof insulation, as one of the important measures for building energy saving, has attracted more and more attention. Traditional roof insulation materials can no longer meet the needs of modern buildings, therefore, new types of roof insulation materials have emerged. This article will introduce some new types of roof insulation materials and their characteristics.
1. Polystyrene foam board.
Polystyrene foam board is a foam material made of polystyrene resin, which has many closed tiny bubbles inside, which has good thermal insulation properties.
At the same time, polystyrene foam board also has the characteristics of light weight, moisture-proof and waterproof, and is widely used in roof insulation projects. However, polystyrene foam board is flammable and can release toxic gases after high temperatures or open flames, so special attention needs to be paid to safety issues when using it.
2. Expanded perlite.
Expanded perlite is a natural mineral material with a porous structure formed after high temperature expansion, which has good thermal insulation properties. At the same time, expanded perlite also has the advantages of light weight, non-toxic and tasteless, and will not affect human health. However, expanded perlite has strong water absorption and is prone to moisture, so it needs to be waterproof when using.
3. Rock wool board.
Rock wool board is an inorganic fiber material with high fire resistance grade and good thermal insulation performance. At the same time, rock wool board also has the characteristics of light weight, moisture-proof and non-combustible, and is widely used in roof insulation projects of high-rise buildings. However, the fiber of the rock wool board is relatively fine, which is easy to inhale into the human lungs and cause health hazards, so it is necessary to take protective measures when using it.
4. Aerogel.
Aerogel is a new type of nano-scale thermal insulation material, and its thermal insulation performance is several times or even dozens of times that of traditional materials. The main component of aerogel is a network structure composed of silicon, oxygen, carbon and other elements, which has extremely high porosity and specific surface area, which can effectively block the transfer of heat. At the same time, aerogel also has the characteristics of light weight, high temperature resistance, corrosion resistance, etc., and is widely used in aerospace, automotive and other fields. However, aerogel is expensive to produce and cannot be applied on a large scale at present.
5. Intelligent temperature control materials.
Intelligent temperature control material is a new type of intelligent building material, which can automatically adjust the thermal conductivity of the material according to the change of external environmental temperature. This material can reduce indoor heat loss in winter and outdoor heat transfer into the room in summer, so as to achieve the effect of energy saving and emission reduction. At present, the technology of intelligent temperature control materials is still developing and improving.
In short, with the continuous progress of science and technology and the continuous improvement of building energy-saving needs, new roof insulation materials are also emerging. When choosing roof insulation materials, you need to consider comprehensively according to the actual situation and choose the materials that are suitable for your own building. At the same time, it is also necessary to pay attention to the safety and environmental protection of materials to achieve the sustainable development of green buildings.