Acoustic Plaster to Swimming Pools
Installation of BASWA acoustic systems in damp locations
(Swimming pools, Spa areas, etc.)
BASWA Phon acoustic systems may be used in areas that are subject to high humidity (swimming pools, spa areas, bathrooms, kitchens, etc.). Materials used in modern, timeless architecture are mostly sound-reflecting and need additional sound-absorbing surfaces to create a pleasant interior environment.
Choosing a system
In principle, all BASWA acoustic systems (Base, Fine, Classic Base, Classic Fine and Classic Top)
can be installed in humid rooms. However, the finished BASWA surfaces must be treated with
BASWA Protect surface impregnation if there is risk of the surface coming into contact with water.
Climatic conditions Building use
Relative humidity: up to max. 70 % (project specific after consultation also up to 80 %)
Surface protection BASWA Protect
BASWA Protect is a specially developed premium impregnation system for achieving an in-depth
water repellent with optimum protection for BASWA acoustic surfaces. The acoustic performance
of the system is not affected by this.
The deep penetration of BASWA Protect into the acoustics system will significantly lower dirt and
water absorption. This prevents the immediate ingress of liquids and thus reduces its capacity for
absorbing contamination in liquid form, and dirt particles that are mixed in with liquids.
Substructure
The substructure must satisfy the demands that are pertinent to the respective humid rooms (see
also DIN 18 168 T1 and T2, as well as DIN EN 13964-2004 D at least load class C). The substrate
must be mineral and solid or consist of a mineral-based suspended system with corrosion protec-
tion. BASWA acoustic AG categorically rejects any liability for the substructure.
Dew point
If there are strong fluctuations in temperature and relative humidity, care must
be taken to ensure that the dew point is not located on the surface or within
the BASWA acoustic system.
1:The design of the building insulation and the commissioning of air conditioning systems must be
planned and controlled accordingly.
2:The moisture caused by condensation in the room air can cause damage to th BASWA Phon
acoustic system.
Exposure to chemicals
The vapours and gases (chlorine, ozone, salt water, etc.) that are usually present in such damp ar-
eas (swimming pools) are compatible with the BASWA acoustic system. It is necessary to ensure
that no solid or liquid precipitation or deposit forms on the ceiling, which can lead to discoloura-
tion. Direct contact from splashing/spraying water must be prevented.
Fixtures
Fixtures, adjacent components and structures must satisfy the demands that are pertinent to the
respective humid rooms (corrosion resistance, see quoted standards). There must not be any hot
or cold spots in the fixtures, fittings or structures that could lead to corrosion-related damage.
Cleaning
When cleaning the system, make sure that the BASWA acoustic system does not come into con-
tact with any corrosive or highly concentrated detergent; cleaners which are not specifically de-
signed for BASWA acoustic systems may not be applied to BASWA surfaces. When mechanically
intensive cleaning processes such as steam cleaners are used on adjacent components (walls,
ceilings, columns, windows, etc.), make sure it does not touch or soil the BASWA acoustic system
surfaces.
Acoustic Plaster for Swimming Pools and High-Humidity Environments
The Challenge of Aquatic Acoustics
The architectural design of indoor swimming pools and wellness spas often creates an acoustic environment defined by hard, reflective surfaces—stone, glass, and water. Without intervention, these spaces suffer from excessive reverberation and "flutter echoes," resulting in a disorienting and uncomfortable experience for the user.
Quiet Craft provides specialist, moisture-resistant acoustic plaster solutions that marry seamless, monolithic aesthetics with superior sound absorption, specifically engineered for the rigours of indoor aquatic environments.
Technical Specification for Architects & Developers
In high-humidity zones, standard acoustic materials are prone to sagging, mould growth, and degradation. Our systems, such as BASWA Phon Cool & Climate, are selected for their specific performance in C4 (High Humidity) environments.
1. Moisture & Humidity Resilience
Our systems utilise an inorganic, mineral-based substrate that remains dimensionally stable even in 100% relative humidity. The marble-based plaster finish is naturally breathable, preventing the entrapment of moisture behind the acoustic layer.
2. Chlorine & Chemical Resistance
The binders used in our specialist pool-grade plasters are chemically inert. They are designed to resist the corrosive effects of airborne chlorine and bromine, ensuring the ceiling maintains its structural and aesthetic integrity for decades.
3. Unrivalled Sound Absorption
Traditional perforated panels often fall short in pool environments due to the sheer volume of space. Our seamless systems provide Class A sound absorption ( up to 0.95), effectively taming the harsh reflections from the water’s surface and tile work.
