Kooltherm K8 Cavity Wailboard is a CFC-free phenolic foam laminate with a reinforced low emissivity composite foil facing autohesively bonded to each surface. The closed-cell foam core gives the board outstanding thermal performance, while the phenolic resin composition leads to excellent fire characteristics and low smoke generation.
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K8 is designed as a partial fill cavity wall insulation board, where its low thermal conductivity allows the required U-values to be achieved with the minimum thickness of insulation. I<8 can be used with a variety of different wall constructions, see BBA Certificate No. 94/3047 for further details.
K8 should be fixed against the inner leaf of the external wall, by means of proprietary insulation retaining wall clips, see BBA Certificate No. 94/3047.
15 - 70mm
Thermal conductivity @ 10°C
*The combination of these results meets the Class 0 requirements of the Building Regulations (1991), Approved Document B, Appendix A, Paragraph A12 (b).
K8 is manufactured in a range of thicknesses from 15mm to 70mm and in a standard board size of 1200mm X 450mm.