Hush GypCem 28 Acoustic Dry Screed Floor Panel 1200 x 600 x 28mm

Make footsteps, voices and TV noise less intrusive with Hush GypCem 28 Acoustic Dry Screed Floor Panel. The high-mass gypsum fibre surface and resilient felt backing tackle airborne and impact sound in lightweight separating floors.

Each 1200 x 600 x 28mm panel covers 0.72m² and weighs 17.3kg. Hush GypCem 28 is an overlay for a supporting floor deck, giving new builds, conversions and refurbishments a dry screed acoustic upgrade.

	Impact rating (typical floor assembly): 56 dB L’nT,w
	Airborne rating (typical floor assembly): 61 dB DnT,w / 57 dB DnT,w + Ctr
	Thickness: 28mm
	Board size: 1200 x 600mm
	Area: 0.72m² per board

Two layers working together

• 18mm tongue-and-groove gypsum fibre board adds mass for airborne sound insulation.
• 10mm Hush Felt resilient backing cushions impacts such as footsteps.

Acoustic performance

Hush publishes typical floor assembly results of 56 dB L’nT,w impact, 61 dB DnT,w airborne and 57 dB DnT,w + Ctr. Lower impact levels and higher airborne figures indicate better insulation when comparing equivalent tests.

Installation essentials

1. Lay the panels felt side down over a supporting deck. Above joists or battens, provide a chipboard or plywood deck first.
2. Stagger the joints in a broken bond pattern and glue the tongue-and-groove edges with cement panel adhesive.
3. Isolate the perimeter with Hush Seal 20 or Hush RD Flanking Strip. Use RD Flanking Strip where specified for Robust Details.

How many do I need?

Divide your floor area in m² by 0.72, include a cutting allowance if needed, then round up to whole panels.

For example, a 20m² room with an optional 10% allowance needs 20 × 1.10 ÷ 0.72 = 30.56, rounded up to 31 panels.

For help with the right quantity for your project, call our technical team on 01928 571 856 or email hello@soundinsulationstore.co.uk