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Insulation is necessary to reduce energy consumption, sound pollution and improve the comfort and quality of life in new or existing buildings regardless of the construction system.
Insulation fights global warming as it reduces greenhouse gases. Insulating your home is an ecological process. The signing of the Kyoto agreements was a major stage in collective awareness of the need to protect the environment by fighting global warming.
Thermal insulation, by reducing heat wastage, minimises energy consumption (demand for heating) and therefore reduces the heating bill, consumption and pollution by up to 80%.
Comfort in the home depends on maintaining a good inside temperature regardless of the season. Winter and summer comfort depend on very high resistant thermal insulation for all surfaces (including windows) + ventilation adapted to the season + outside blocking elements (doors, shutters) + the building’s air tightness.
In the last 25 years, noise has become one of the major sources of pollution. Humans, who cannot physiologically block out noise as they can the light by closing their eyes, have felt the need to protect themselves.
The aim of fire protection for buildings is to save life of occupants and limit as much as possible any fire-related damages to their health. In order to achieve this objective, the following is necessary
The choice of insulating material in terms of thermal performance involves studying two factors: thermal resistance R and the thickness of the insulating material.
To evaluate the thermal insulation of a material, it is necessary to know its resistance to heat flow (m2.K/W) presented by a material in a given thickness. The higher the thermal resistance R, the better insulation is provided by the material.
Thermal conductivity or λ is the quantity of heat W/m.K that may be transferred into a material, at a given time. The lower the λ value, the better insulation.
Insulation products should be chosen according to their adaptability to an application in the building. These features are set out by professional standards together with the performance required for a given application. They should also be provided by the manufacturer. All the features are assessed and measured according to international and European standards applicable to all types of insulation.
No one product is ideal for all applications. Some insulation materials , by their very nature, production, features, performance and presentation (rolls, panels or bulk) have more or less dedicated applications.
For reach application, it is necessary to check that the features and performance of the product match the level required by professional standards or regulations for the application. (See “How to know the thermal performance of insulating material ”)
Besides these features which should be checked case by case, product by product, the table below summarises common and traditional uses for the various product families
sides these features which should be checked case by case, product by product, the table below summarises common and traditional uses for the various product families
Application/ Type of insulation material |
Loft |
Ceilings |
Walls |
Partitions |
Floors: on top |
Contact with water/moisture |
Glass wool |
yes |
yes |
yes |
yes |
yes |
no |
Stone wool |
yes |
yes |
yes |
yes |
yes |
no |
Hemp wool |
yes |
yes |
yes |
yes |
yes |
no |
Polystyrene EPS |
yes |
|
yes |
no |
yes |
partly |
Polystyrene XPS |
yes |
|
yes |
no |
yes |
yes |
Duck down |
yes |
yes |
yes |
yes |
|
no |
Polyurethane |
yes |
|
yes |
|
yes |
yes |
Wood wool |
yes |
yes |
yes |
yes |
yes |
no |
Sheep’s wool |
yes |
yes |
yes |
yes |
|
no |
Linen wool |
yes |
yes |
yes |
yes |
|
no |
Cellulose |
yes |
yes |
yes |
yes |
|
no |
Cotton wool |
yes |
yes |
yes |
yes |
|
no |
Recycled textiles |
yes |
yes |
yes |
yes |
|
no |
Cellular glass |
|
|
|
|
yes |
yes |
Thin insulation (PMR) |
yes |
|
|
|
|
yes |
