Mayplas Acoustic Floor Slab is designed for the acoustic insulation of separating floors and is glass tissue faced and rebated on all edges – it is ideally suited for both ‘wet’ construction (under 65 mm cement sand screed) and ‘dry’ construction (under flooring grade chipboard). Mayplas Thermal Floor Slab is designed for the thermal insulation of ground floors and is glass tissue faced with square edges.


  • 25–100 mm thickness.
  • Rebated and square edge types.
  • Glass tissue faced for protection.
  • Stable under cement sand screeds.

General information

Uniclass 2015

Pr_25_57_06_50 Mineral fibre slab insulationPrimary


P10/10 Loft insulation

P10/15 Insulation fitted between rafters

P10/240 Insulation fitted between floor joists

P10/250 Insulation supported between floor joists

P10/45 Insulation laid between floor joists

P10/50 Insulation supported between joists

Product range

Acoustic Insulation

Specification data - Mineral fibre slab insulation

Product Reference

579 Acoustic Floor Slab

Rebated on all edges.

579 Thermal Floor Slab

Square edged.


25 mm

Acoustic slab only.

30 mm

Acoustic slab only.

40 mm

Acoustic slab only.

50 mm

Thermal slab only.

60 mm

Thermal slab only.

70 mm

Thermal slab only.

80 mm

Thermal slab only.

90 mm

Thermal slab only.

100 mm

Thermal slab only.

Standard product features

Slab size:

1000 x 1200 mm.

Thermal conductivity:

  • Acoustic: 0.040 W/mK.
  • Thermal: 0.038 W/mK.

Product Options

Fire performance:

Meets Class 0 of the Building Regulations (E&W) 2000.

Similar products from Mayplas

325 Thermal Roof Panel System

561 Black Polythene Enclosed Acoustic Pad

561 Black Polythene Enclosed Acoustic Pad

571/ 572 Acoustic Roof Slab

571/ 572 Acoustic Roof Slab

575 Acoustic Roof Profile

575 Acoustic Roof Profile

576 Paper Faced Rockfibre Slab

644 BCO Foil Faced Rock Fibre Ductslab