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Rockwool NyRock Cavity Slab 032 455x1200x125mm

NyRock Cavity Slab 032 is a full and partial fill stone wool slab designed for the thermal insulation of masonry cavity walls.

Suitable for use in new builds, renovations or extensions, the lightweight slabs are easy to handle and simple to install providing an accurate fit against the blockwork.

Manufactured using patented technology, NyRock Cavity Slab 032 has a more efficient fibre structure that increases the density of air pockets trapped within each slab. This results in an improved thermal performance when compared to traditional stone wool products.

  • Low thermal conductivity of 0.032 W/mK.
  • NyRock Cavity Slab 032 is able to resist temperatures of over 1,000ºC achieving the highest Euroclass A1 non-combustibility classification as defined in EN13501-1.
  • The slab features an additive to make the product highly water repellent.
  • The slabs come in a 455mm width to suit standard vertical wall tie spacings allowing a closely knitted joint with adjacent slabs.
  • BBA certified for full fill applications (in thicknesses of 100 - 200mm), other than in very severe exposure zones with fair-faced masonry. BBA Certificate 22/6252.
  • BBA certified for partial fill applications (in thicknesses of 50 -200mm). BBA Certificate 22/6252.

Product code : 22N455125

Key Performance Criteria

  • Thermal Conductivity : 0.032W/Mk
  • Euroclass Fire Classification : A1

Introducing NyRock® Technology

NyRock® technology is an evolution in stone wool composition that deliver the lowest lambda stone wool insulation available in the UK.

NyRock products deliver the following benefits:

  • Lower lambda for thinner walls
  • Highest thermal performance available from a stone wool product
  • Non-combustibility
  • All the key benefits of the strengths of stone