THEheat-insulating materialsthey are numerous and can be of both natural and artificial origin. Who wants to aim for theinsulationof a building can count on excellent allies: iheat-insulating materials. By exploiting the properties of theheat-insulating materialswere developedinsulating panelsand a particular thermal plaster capable of increasing the energy efficiency of an environment.
As stated, iheat-insulating materialsthey are many, from glass fibers to stone, from wood products to polystyrene. THEmaterials most common used in the production ofthermal insulation panels are: cork, simple or mineralized wood wool, wood fiber, glass wool, rock wool, expanded polystyrene, extruded polystyrene and expanded polyurethane. Descriptively, we can divide theheat-insulating materialsin three different categories:natural insulators (of animal or vegetable origin), mineral insulators (with low environmental impact and also natural) eartificial synthetic insulators.
Thermal insulating materials natural
THEheat-insulating materialsnatural plant-based or animal-based, have a low environmental impact and have excellent characteristics.
- Corn fiber
- Wood fiber
- Sheep wool
- Plain wood wool
- Mineralized wood wool
- .etc ...
Thermal insulating materialsminerals
Again, let's talk about materialsenvironmentally friendly and of natural origin.
- Cellular glass
- Expanded clay
- Rock wool
- .etc ...
Thermal insulating materialsartificial synthesis
It is aboutheat-insulating materialswith very low thermal conductivity values. In this category there are different types of expanded polystyrene. Mostly they are derived from petroleum. Very often, artificial materials are associated with natural materials for the creation of even more efficient thermal insulation panels able to fully exploit the characteristics of the various components.
- Expanded polystyrene (EPS)
- Extruded polystyrene (XPS)
- Expanded PVC
- Phenolic resins
- Various thermal insulation foams
The use of expanded polystyrene blocks is very common for setting up athermal coat. With thethermal coat, the expanded polystyrene is composed in a “sandwich” structure where the panels of ESP or XPS (synthesized or extruded expanded polystyrene) form double layers of insulation. Expanded polystyrene is often associated with othersheat-insulating materialsof natural origin such as perlite, sheep's wool, corn fiber, pumice, cork, ceramic fiber, cellular glass.
Thermal insulating materialsand thermal transmittance
THEheat-insulating materialsthey are characterized by aU factorvery low. What is the U factor? The U factor represents the thermal transmittance which expresses the amount of heat that in the unit of time can pass through a surface element of 1 square meter in the presence of a temperature difference of one degree between the inside and the outside. In other words, in Factor U it represents the complex of thermal exchanges between the external surface of a wall and the internal one. Plus theU factorof a material is high the less suitable that will be material for construction use, on the contrary, the lower the U value, the higher it will bethermal insulation.
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