How to Choose Insulating Material

Why insulate
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.

Environmental quality
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.

Energy savings
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 summer and winter
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.

Acoustic comfort
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.

Fire protection
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

How to know the Thermal performance of Insulating Material
The choice of insulating material in terms of thermal performance involves studying two factors: thermal resistance R and the thickness of the insulating material.

Thermal resistance (R)
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 (λ )
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.

What Application for Which 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.

Depending on the type 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

Post time: May-14-2021