Insulation is one of the few products whose primary purpose is to provide comfort and save energy by “slowing down” or “resisting” the flow of energy such as heat or sound.
The choice of insulating material in terms of thermal performance involves studying two factors: thermal resistance (R-value) and the thickness of the insulating material.
The R-value is the best indicator of performance and is the most important factor when selecting thermal insulation.
All bulk insulation materials have a R-Value
Thermal resistance (R-Value)
To evaluate the thermal insulation of a material, it is necessary to know its resistance to heat flow (m2.K/W) at a given thickness. The higher the thermal resistance - R value of the insulation the better the performance.
All bulk insulation materials have a K-value/ λ-value
Thermal conductivity (λ/K)
Thermal conductivity (K-value) 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 of the insulation the better the performance.
By installing thermal insulation and using energy saving techniques it is possible to reduce a buildings energy consumption for heating/cooling by 78% which therefore reduces the electricity bills.
Comfort in summer and winter
Thermal insulation provides a high resistance to the flow of heat through the building envelope and this limits the impact of the outside temperature variations helping to maintain a stable and comfortable living environment.