OWAplan Acoustic Plaster

What Is

An OWAplan Acoustic Plaster?

An OWAplan Acoustic Plaster Ceiling provides high sound absorption, certified fire protection and a seamless monolithic finish in one integrated system. Pacy & Wheatley Acoustics are an approved installer, delivering this specialist ceiling to exacting standards for architects and contractors across commercial, public and residential projects in the UK and internationally.

If your design requires effective reverberation control without visible grids, tiles or joints, this is the solution, and we are the installers to trust.

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This system works best where acoustic comfort and architectural design must work together.

Sound absorption reduces echo and improves speech clarity in busy or high-ceiling spaces
Built-in fire protection supports regulatory compliance
The smooth, uninterrupted ceiling plane integrates into the architecture
Supplied as standard in white, with additional colours available to suit interior schemes

It is particularly effective in restaurants, hotel foyers, museums, schools, shopping centres and high-end homes where traditional acoustic ceilings would compromise the design intent.

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The appearance and performance of an OWAplan ceiling rely on precise installation. The system incorporates:

A concealed S7 suspension system (or an industry equivalent MF system where specified)
A white fleece-covered acoustic mineral board
A spray-applied acoustic plaster finish

Once installed, our operatives tape, fill and sand the surface repeatedly until perfectly smooth and level. Acoustic plaster is then applied using an airless spray pump to create a fine textured surface that reduces the visibility of imperfections when natural light hits the ceiling. This disciplined process is what delivers the consistent, refined finish architects expect from this system.

Designed for

Architect-Led Environments

Because the finish is seamless and refined, an OWAplan ceiling blends into the room, especially suiting:

Hospitality and leisure venues
Education and public buildings
Retail environments
Residential interiors and refurbishments

If you are planning or specifying an OWAplan ceiling system, speak to Pacy & Wheatley Acoustics to ensure the finish matches your design intent.

Call our team or send an enquiry today to discuss your project and receive expert guidance on installation and detailing.

Clients trust us to install the system and coordinate effectively with other trades to protect the finished surface, delivering consistent quality across projects of all sizes.

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Material 25 mm mineral (base board)
Board size 2400 x 1200 mm
Colour* White (base board with white fleece)
Board surface Fleece covered (perimeter edges removed)
Edges Square edge (E3)
Suspension system Concealed: S7 (or an industry equivalent)
Surface treatment* Sprayed acoustic plaster after taping, filling and sanding
Sound absorption** αw = 0.90 (class A)
Sound insulation** Dnfw = up to 25 dB
Reaction to fire A2-s1,d0 (BS EN 13964 & EN 13501-1)
Moisture resistance Up to 95% RH
Cleaning† Vacuum only
VOC emission Class A+ (ISO 16000)
Formaldehyde emission E1 (BS EN 13964), OWAcoustic < 5 µg/m³
Indoor air comfort Gold (Eurofins)
Cradle to cradle Bronze
Environment 100% recyclable (made after 1/10/97)
Recycled content 19% (base board)
Renewable resources 22% (base board)
Product warranty+ 10 years

* Standard plaster is white, a wide range of RAL colours available on request.

** Linear sound insulation, sound absorption and light reflectance values are dependent on surface finish, ceiling slab and other additional factors. Please contact us for clarification.

+ Terms and conditions apply, please download and read our warranty.

† See DS_9989 Cleaning recommendation.

STC 25mm – Octave Centre Frequency R (dB)
125 Hz 14
250 Hz 16
500 Hz 22
1000 Hz 26
2000 Hz 33
4000 Hz 32

E-200 – Octave Centre Frequency ap
125 Hz 0.50
250 Hz 0.75
500 Hz 0.85
1000 Hz 0.90
2000 Hz 1.00
4000 Hz 1.00

E25 – Octave Centre Frequency ap
125 Hz 0.05
250 Hz 0.35
500 Hz 0.85
1000 Hz 1.00
2000 Hz 1.00
4000 Hz 1.00

Offices Meeting room, open plan, lobby, reception
Education Hall, lecture theatre, canteen, dining room, office, reception, foyer
Retail Shopping centre, boutique, department store, showroom
Leisure Hotel, restaurant, sports centre, cinema, bar, gym, gallery, museum
Healthcare Office, reception, public space, foyer
Residential Home, cinema, corridor, communal space