Phenolic insulation is a rigid insulation with a closed-cell structure. Kingspan's lower-lambda Kooltherm insulation achieves a lambda value of just 0.018 W/m·K across all thicknesses. Phenolic insulation is the most thermally efficient insulation commonly used – helping you to meet building regulations. It can be used in a variety of roof, wall and floor applications, which makes it a great solution for a range of constructions.
Kingspan Kooltherm is the best performing insulation board on the market! This is how it stacks up against other Insulation types in terms of thermal conductivity value (lower the score = better performance).
Mineral Wool - 0.032–0.044 W / m . K
EPS - 0.034–0.038 W / m . K
XPS - 0.033–0.035 W / m . K
PIR - 0.022 W / m . K
Kingspan Kooltherm Phenolic - 0.018 W / m . K
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