New build

Blown bead cavity wall insulation is very suitable for new build.

Blown bead cavity wall insulation, using the grey bead option with an improved lambda value, can help you achieve Part L 2013 without changing your construction methods.

Blown bead is one of the most technically advanced cavity wall solutions. EPS bead systems are low cost and extremely efficient, offering some of the lowest µ-values achievable in cavity walls.

Blown bead cavity wall insulation is simple and fast to install with a minimum of mess or waste on site, and offers valuable flexibility to the builder in scheduling the work on site.

Advantages of Blown Bead for New Build

  • The thermal performance of Blown Bead remains constant throughout the life of the building, unlike fibre.
  • Blown beads allow full inspection of built cavities before installation.
  • Blown beads eliminate on-site storage and waste from built-in batts.
  • Blown beads ensure a quicker and easier construction of masonry walls by bricklayers thus saving costs.
  • Blown beads fully fill complicated details in walls without the need for intricate fitting of batts and reduces the risks of cold bridging.
  • Blown beads have an excellent track record, for over 35 years, in upgrading existing properties.
  • Blown beads are BBA certified with the benefit of an installers guarantee.
  • Blown beads are factory expanded to ensure a constant delivered density and lambda value.

µ-values comparison

Spec 032 bead 033 bead MW34 Comment
100mm CWI 0.11 Block 0.23 0.23 0.24 All bead options give an uplift
0.15 Block 0.24 0.24 0.25 All bead options give an uplift
0.18 Block 0.24 0.25 0.25 superbead32 gives an uplift
125mm CWI 0.11 Block 0.19 0.20 0.20 superbead32 gives an uplift
0.15 Block 0.20 0.21 0.21 superbead32 gives an uplift
0.18 Block 0.20 0.21 0.21 superbead32 gives an uplift
150mm CWI 0.11 Block 0.17 0.17 0.18 All bead options give an uplift
0.15 Block 0.17 0.18 0.18 superbead32 gives an uplift
0.18 Block 0.18 0.18 0.18 All products achieve same value
175mm CWI 0.11 Block 0.15 0.15 0.16 All bead options give an uplift
0.15 Block 0.15 0.16 0.16 superbead32 gives an uplift
0.18 Block 0.15 0.16 0.16 superbead32 gives an uplift
200mm CWI 0.11 Block 0.13 0.14 0.14 superbead32 gives an uplift
0.15 Block 0.14 0.14 0.14 All products achieve same value
0.18 Block 0.14 0.14 0.15 All bead options give an uplift