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Earthwool® Fabrication Slab

Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Knauf Insulation Ltd

Fabrication slabs are non-combustible Rock Mineral Wool slabs, designed for use in a wide range of fabrication applications.

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+44 (0)1744 766 666 www.knaufinsulation.co.uk

Earthwool Fabrication Slabs are non-combustible Rock Mineral Wool slabs, manufactured using ECOSE® Technology, and designed for use in a wide range of fabrication applications.

Features and benefits:

  • Good thermal performance.
  • Non-combustible A1 'Euroclass Reaction to Fire' classification.
  • Good sound absorption characteristics provide high levels of sound reduction.
  • Can be provided with a factory-applied foil or tissue facing, offering solutions for a wide variety of fabrication applications.
  • Robust product, allowing cutting to accurate tolerances for a range of applications.

General information

Slab length: 1200 mm

Slab width: 600 mm

Uniclass 2015
Pr_80_77_76_53 Mineral wool duct slab insulationPrimary

B15/110 Timber framed

B15/120 Timber framed

B15/130 Light gauge steel frame

B15/140 Precast concrete frame

C46/370 Making good of cavity wall insulation

E20/200 Proprietary underslab insulation

F30/10 Full fill cavity insulation

F30/150 Full fill cavity insulation

H11/110 Curtain walling

H11/780 Thermal insulation

H20/10 Sheet cladding

H20/150 Sheet cladding

H20/155 Sheet cladding

H30/311 Mineral wool thermal insulation

H31/271 Mineral wool thermal insulation

H31/50 Mineral wool thermal insulation

H42/482 Thermal insulation to rear of panels

H43/120 Metal insulating sandwich panel

H61/230 Mineral wool insulation on structural metal liner trays

H62/230 Mineral wool insulation on structural metal liner trays

H64/305 Mineral wool insulation on structural metal liner trays

H65/230 Mineral wool insulation on structural metal liner trays

H67/305 Mineral wool insulation on structural metal liner trays

H92/775 Thermal insulation

H92/776 Thermal insulation

J21/10 Warm deck roof coating

J21/425 Mineral wool warm deck roof insulation

J41/10 Built-up reinforced bitumen membrane warm deck roof covering

J41/425 Mineral wool (MW) warm deck roof insulation

J42/10 Warm deck roof covering

J42/425 Mineral wool (MW) warm deck roof insulation

K10/115 Metal stud partition system

K10/125 Metal stud partition system

K10/145 Wall lining system (metal studs)

K10/15 Lining on timber

K10/155 Wall lining system (metal studs)

K10/165 Wall lining system (metal framing)

K10/215 Suspended ceiling system

K10/220 Proprietary suspended ceiling system

K10/30 Metal stud

K10/35 Wall lining on metal framing

K11/115 Battened plywood floating floor

K11/125 Battened particleboard floating floor

K11/135 Battened oriented strand board floating floor

K11/145 Battened cement-bonded particleboard floating floor

K11/20 Battened particleboard floating floor

K11/215 Plywood floating floor

K11/225 Particleboard floating floor

K11/235 Oriented strand board floating floor

K11/245 Cement bonded particleboard floating floor

K11/25 Particleboard floating floor

K11/275 Acoustic separating floor system

K11/35 Oriented strand board flooring

K11/795 Wall lining on metal framing

K11/796 Metal stud partition system

K13/170 Acoustic panel lining

K20/150 Battened timber board floating floor

K21/111 Wood floating floor

K21/120 Battened wood flooring

K21/130 Battened wood floating floor

K21/140 Battened wood laminate flooring

K21/145 Composite laminate flooring

K21/146 Laminate flooring

M10/290 Floating construction

M10/40 Floating construction

M21/20 External wall insulation system

M21/210 External wall insulation system

P10/10 Loft insulation

P10/125 Insulation laid between ceiling ties/ joists

P10/135 Insulation laid across ceiling ties/ joists

P10/140 Insulation fitted between rafters

P10/148 Multilayer blanket insulation fixed under or above rafters

P10/15 Insulation fitted between rafters

P10/165 Insulation to eaves

P10/170 Insulation to loft access hatches

P10/180 Insulation to water cisterns

P10/190 Insulation fitted between studs

P10/212 Insulation fixed across inner face of stud walling

P10/217 Insulation slabs fixed to backing wall

P10/220 Sound insulation within timber framed separating wall

P10/240 Insulation fitted between floor joists

P10/25 Insulation to water cisterns

P10/250 Insulation supported between floor joists

P10/40 Insulation fitted between studs

P10/45 Insulation laid between floor joists

P10/50 Insulation supported between joists

Specification data - Mineral wool duct slab insulation
Product Reference

Earthwool® Fabrication Slab

Earthwool® Fabrication Slab Foil Faced

Earthwool® Fabrication Slab Tissue Faced


65 mm

75 mm

85 mm

100 mm

110 mm

120 mm

130 mm

140 mm

150 mm

160 mm

Standard product features


  • Slab length: 1200 mm.
  • Slab width: 600 mm.

Thermal conductivity:

0.037 W/mK.

Fire performance:

Euroclass A1 to BS EN ISO 13501-1.


A+ generic BRE 'Green Guide' rating.

Third party certifications
  • Eurofins Gold Certificate for Indoor Air Comfort: Certificate
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