Zentia Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Lay-in mineral ceiling tile.

Jump to:
+44 (0)800 371849 www.zentia.com


  • WC.
  • Shower areas.
  • Hydrotherapy rooms.


Lay-in mineral ceiling tile appropriate for use in areas such as hydrotherapy rooms, shower areas and WC rooms.

Hydroboard can resist permanent relative humidity (RH) up to 95% at 30°C without sagging, warping or delaminating and temporary conditions of up to 100% RH.

Features and benefits:

  • Dimensionally stable at humidity levels of up to 100% RH and can be installed in temperatures ranging from 0–40°C.
  • Choice of edge profiles and sizes.
  • Choice of grid to suit tile edge detail (specified separately; see below for details).
  • 15-year product guarantee.
  • 30-year system guarantee.

Load capacity:

  • Varies with layout, grid type, tile selected and hanger spacing. Consult manufacturer's technical sales department for details.
  • Fittings exceeding the load capacity or with dynamic characteristics (such as air diffusers) will need independent suspension.


Compatible grids, by edge detail. To be specified separately; consult manufacturer for details.

- Board/ Tegular:

  • Prelude 24 TLS: Exposed 24 mm grid.
  • Prelude 24 XL²: Exposed 24 mm grid.
  • Prelude 24 mm corrosive resistant grid. *Recommended when system is to be installed in areas >90% RH.

- MicroLook:

  • Prelude 15 TL: Exposed 15 mm grid.
  • Prelude 15 XL²: Exposed 15 mm grid.
  • Interlude HRC XL²: Exposed 15 mm grid with double reveal feature.


  • WC.
  • Shower areas.
  • Hydrotherapy rooms.

General information

Uniclass 2015

Pr_35_93_13_53 Mineral fibre infill unitsPrimary


K40/10 Unit/ modular suspended ceilings

K40/105 Suspended ceiling system

K40/115 Unit/ modular suspended ceiling system

Specification data - Mineral fibre infill units

Product Reference



Insert requirements. Consult manufacturer for BIM/ CAD details.

Edge detail




Module size (w x l, nominal)

600 x 600 mm

600 x 1200 mm

Standard product features

Technical characteristics:

  • Thickness: 15 mm.
  • Colour: Global white.
  • Weight (approximate): Board: 1.2 kg/m²; Tegular/ MicroLook: 2.5 kg/m².
  • Light reflectance value (LRV): 82%.
  • Thermal conductivity: 0.033 W/m·K.
  • Reaction to fire: Euroclass A2-s1, d0.
  • Recycled content in accordance with ISO 14021 (maximum): 20%.
  • Acoustic absorption (weighted sound absorption coefficient): αw = 0.90.
  • Acoustic attenuation (weighted suspended ceiling normalized level difference): Dnfw = 22 dB.

Acoustic absorption:

Weighted sound absorption coefficient (alpha w). Rating for random incidence sound absorption determined in accordance with EN ISO 11654. Measured values obtained in accordance with EN ISO 20354 are converted into octave bands, plotted on a graph and compared to a standard reference curve until a 'best fit' is obtained. The derived αw will vary between 0.00 and 1.00.

Acoustic attenuation:

Dnfw rating derived from laboratory measurement of room-to-room airborne sound insulation of suspended ceiling with plenum above. Rating determined in accordance with EN ISO 717-1 from measurements made in accordance with EN IS0 10848-2 over the third-octave band frequency range 100–3150 Hz.

Product Options

Edge detail:

  • Board: Lay-in square edge for 24 mm grid.
  • Tegular: Lay-in rebated edge for 24 mm grid. Rebate depth: 8 mm.
  • MicroLook: Only for use in areas <90% RH. Lay-in rebated edge for 15 mm grid. Rebate depth: 8 mm.

Third party certifications

  • CE marking: Notified Body accredited

Similar products from Zentia

Academy Diploma

Academy Diploma

Academy Merit

Academy Merit



Clean Room FL

Clean Room FL

Colortone Dune eVo Platinium

Colortone Dune eVo Platinium

Colortone Fine Fissured Black

Colortone Fine Fissured Black

Colortone Neeva Black



Data Centre Clean Room FL

Data Centre Ultima+