BASWA acoustic plaster systems bring seamless sound absorption to commercial spaces without visible panels, exposed edges, or compromises to the design.
Explore ApplicationsBASWA systems absorb airborne sound across walls and ceilings without looking like an acoustic material. The result is a room that functions acoustically and meets the original design intent.
Used to reduce ambient sound and promote wellbeing, BASWA systems are installed in performing arts centers, corporate headquarters, university lecture halls, healthcare facilities, and houses of worship — in projects ranging from new construction to historical renovations. Each installation is customized to meet the acoustic and design requirements of the space.

Research shows acoustics as one of the leading elements to consider in a classroom or learning setting. Acoustics can be manipulated in lecture halls or study rooms to mitigate noise, positively impacting learning, speech perception, and teacher facilitation.
Speech clarity is the primary acoustic objective in educational settings. In large lecture halls and auditoriums, excessive reverberation lengthens the decay time of spoken sound and reduces. BASWA acoustical plaster ceilings and walls reduce reverberation time to a range calibrated for speech, without the visual interruption.

The acoustic environment of a restaurant shapes the dining experience as directly as lighting or material palette. In spaces with hard surfaces like concrete, stone, or glass airborne sound builds quickly, raising ambient noise levels making table conversation difficult, and even altering the perception of how food tastes.
BASWA systems absorb excess reverberation while maintaining the ambient energy a dining room needs, producing spaces where guests can hear one another without the room going acoustically flat. BASWA's seamless plaster finishes are compatible with the full range of restaurant interiors, and can be used to remediate acoustic issues while drastically limiting costly closure timelines.

Performing arts venues require acoustic precision across a wide frequency range, and the relationship between absorption, reflection, and reverberation is central to how the space is experienced.
BASWA acoustical plaster systems have been used in main performance halls, rehearsal rooms, and supporting event spaces, each with different acoustic targets and different architectural conditions. From curved and vaulted ceiling surfaces to ceiling sails and clouds, BASWA offers high-performance acoustic systems and solutions that help tune a space without interfering with sound richness, all seamlessly.

Contemporary museum galleries increasingly incorporate audio and multimedia components, placing acoustic performance alongside lighting and climate control as a core environmental system. Hard surfaces are standard in institutional architecture, and without sound absorption, audio exhibits bleed across adjacent galleries, compromising both the exhibit and the visitor experience.
BASWA acoustical plaster ceilings and wall systems address both the modern and historic museum without altering the material expression of the space.
Hotel lobbies, atriums, and event spaces are among the most acoustically challenging commercial environments. Large volumes, reflective finishes, and high occupancy combine to produce noise levels that affect guest comfort throughout a property.
BASWA acoustical systems reduce reverberation, bringing ambient noise to a level where conversation is comfortable and architecture is experienced as intended. BASWA finishes reflect light while absorbing sound, a combination that is particularly effective in tall atrium spaces.


Open-plan office environments without acoustic treatment create conditions in which speech privacy is difficult and concentration is easily disrupted. BASWA acoustical plaster ceilings absorb airborne sound across the reverberant field, reducing the effective radius of speech transmission and improving acoustic separation between work zones.
In conference rooms and boardrooms, the system provides the speech clarity needed for clear communication in hybrid meeting environments.

Introducing acoustic treatment into a historically significant building presents a particular challenge: the treatment must perform, but it cannot visually alter or physically damage the existing architecture.
BASWA offers acoustic solutions that do not require mechanical fastening into historic finishes, and BASWA finishes can be matched to existing plaster colors and textures. The result is an acoustical plaster surface that reads as original and preserves historic identity.

Healthcare environments present three acoustic demands: speech privacy in clinical areas, reduced noise exposure in patient recovery spaces, and a calm acoustic ambiance in lobby and atria spaces. Excessive airborne sound in hospitals has been documented as a factor in patient stress, sleep disruption, and staff communication errors.
BASWA acoustical plaster systems address each condition by absorbing reverberant noise to reduce sound levels and improving speech intelligibility in diagnostic and consultation spaces.
Natatoriums, spa facilities, porte-cocheres, and covered outdoor areas generate high humidity levels that limit the range of acoustic materials available to architects.
BASWA offers solutions resistant to mold and mildew suitable for persistently high humidity for a continuous acoustic ceiling or wall finish that manages the significant reverberation produced by reflective materials like tile, glass, and water.


Libraries have moved from the near-silent reading room model toward active learning environments with collaborative zones, digital media areas, and open stacks, all of which generate different acoustic conditions in a single continuous space.
BASWA acoustical plaster ceilings absorb sound across these zones without the visual segmentation of suspended tiles or panels, preserving the open, architecturally considered quality of contemporary library design. The system is particularly effective in high-volume reading and study spaces where acoustic consistency across the ceiling plane is necessary to avoid localized noise pockets.
Transportation terminals are among the most acoustically demanding public spaces: large volumes, hard structural surfaces, and high occupancy produce reverberation times that can render public and safety address systems difficult to understand.
BASWA acoustical plaster ceilings and wall systems reduce the reverberant field in these spaces, improving speech intelligibility for both public address and face-to-face communication.


Courtrooms, legislative chambers, and civic assembly spaces share a common acoustic requirement: spoken language must be understood clearly by every person in the room, under varying occupancy conditions. The hard material architectural language of government spaces creates a reflective environment that can work against this goal.
BASWA acoustical plaster ceilings introduce sound absorption while maintaining the material integrity of the space, without visible acoustic panels or ceiling systems that would be architecturally incongruous.
Houses of worship present one of the most nuanced acoustic design challenges in commercial architecture: a space that supports choral music and organ must also support spoken liturgy and congregational response, which require shorter decay times.
BASWA acoustical plaster is applied selectively, allowing acoustical consultants and architects to tune the distribution of absorption across wall and ceiling surfaces to balance these competing needs. BASWA finishes are also compatible with the decorative and historical character of religious architecture, where visible acoustic panels would conflict with design.


Retail environments at higher traffic volumes generate significant ambient noise levels, particularly in spaces with concrete floors, high ceilings, and open floor plans. Elevated noise has been linked to shorter dwell times and lower customer satisfaction, and the acoustic environment is increasingly recognized as part of the brand experience a retail space communicates.
BASWA acoustical plaster ceilings absorb reverberant sound while maintaining the clean, contemporary ceiling plane that premium retail interiors demand.
"For over a decade Angelini Plastering been installing acoustic plaster systems, including each of the top three brands. Aside from the outstanding performance BASWA Phon provides, even more importantly to my company, is the relationship with BASWA acoustic. They always have the first pulse on projects in my region and offer top technical support in the field. I can’t begin to express how rapidly they turn out submittals, LEED information, SDS, and color coded detailed RCPs. We feel as though we are one big team."
"The systems we installed in our new café and conference room are incredible. Everyone who experiences the space is slack jawed. Many of the other tenants in our building experience sound issues and are excited to use the product in their spaces as well."
"We were happy to be able to use BASWA Phon, as it completely transformed the space. Having experience with a competitor, we know BASWA Phon is a superior product without question."
"Accurate Acoustical has nothing but good things to say about BASWA Phon. The installation training and technical support was excellent. It was our first time using BASWA products and our installers with your field training did a great job. The project turned out great."
"BASWA has the very finest technical service department of any of the many products we install… and I’m not just talking about acoustical plaster, but any plaster system."
"Because OCP Contractors was already a Certified Installer, we were able to self-perform the work and it helped get the job awarded to OCP. We were glad we could provide the owner with an exceptional product that changed the dynamics of the space."
"The appropriate acoustical environment for speech privacy in the open office area was critical to creating a successful space for Gehry Partners’ design team. The office layout was designed without workspace dividers. Although the desks were relatively far apart, the ambient noise due to HVAC (typically offering “white noise” masking) would be very low. Speech privacy was clearly going to be an issue. Compared to the other options that were being entertained, BASWA Phon had the highest sound absorption properties and offered Gehry’s team the clean, uncluttered, monolithic ceiling design they required. We were very pleased with the quality of workmanship within these areas; the open office acoustics are exceptional and we understand the users are very pleased."
"BASWA Phon provided Siebein Associates with a seamless sound absorbent surface that met HOK’s design intent while offering exceptional performance which helped to reduce focused sound reflections, reduce overall reverberant noise levels and control the transmission of sounds from one level to another in the large open volume of the atrium maintaining manageable sound levels even on busy days."
"BASWA Phon is a great product that allowed us to create an all-glass circular party room for 600 people where they can actually hear each other talk! The appearance of the great inverted dome is seamless. We asked for an 'impossible' blurred color transition at the edges. Developing a new spray technique to satisfy our request, BASWA acoustic's skilled Certified Installers executed our design beautifully."
"Even on the very crowded opening days and events of last week, the sound absorption worked marvelously. Bravo."