Build Supplies Limited

Earthwool Rocksilk Flexible Slab

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Earthwool Flexible Slab is a multi-purpose, flexible, non combustible, rock mineral wool slab specifically designed for installation by friction fitting between studs, joists and rafters.

Key benefits are that it provides excellent thermal and acoustic performance in all building applications.


BSL have excellent stocks of flexible slabs in the following sizes,

  • 1200 x 600 x 50mm 7.2m2 packs
  • 1200 x 600 x 70mm 5.76m2 packs
  • 1200 x 600 x 90mm 3.6m2 packs
  • 1200 x 600 x 100mm 3.6m2 packs
  • 1200 x 600 x 140mm 2.16m2 packs
  • 1200 x 400 x 100mm 2.88m2 packs
  • 1200 x 400 x 140mm 1.92m2 packs

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