BASWA Cool | Thermally Active Seamless Acoustic Plaster Ceilings
Arthur Acoustics provides specialist specification and certified UK installation of BASWA Cool, a thermally active, seamless acoustic plaster ceiling and wall system that combines silent, draught-free radiant heating and cooling with broadband sound absorption. By embedding fine water-bearing capillary tube mats directly beneath a thermally conductive marble-sand plaster finish, BASWA Cool eliminates bulky air-conditioning grilles, fan-coil noise, and visible acoustic tiles in a single architectural surface.
Why Architects and MEP Consultants Choose BASWA Cool
Modern low-energy buildings require efficient climate control without sacrificing ceiling heights or visual purity. BASWA Cool pairs radiant thermal comfort with acoustic control while consuming a fraction of the energy used by conventional forced-air HVAC systems.
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Silent, Draught-Free Climate Control. Radiates gentle, even heating and cooling across the entire ceiling plane with zero air movement, mechanical hum, or dust circulation.
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High Thermal Conductivity & Efficiency. Embedded close to the surface inside thermally conductive marble plaster, the capillary mats respond rapidly and pair seamlessly with low-temperature renewable heat pumps.
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Seamless Architectural Freedom. Eliminates exposed vents, chilled beams, and ceiling diffusers across flat, sloped, or gently curved surfaces up to 500 m² without expansion joints.
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Broadband Sound Absorption. Controls room reverberation alongside thermal regulation, achieving sound absorption up to αw 0.65 (Class C).
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Choice of Marble-Sand Finishes. Finished in your choice of 0.7 mm Base, 0.5 mm Fine, or 0.3 mm Top natural marble aggregate, available in architectural white (~NCS S 0500-N) or custom RAL and NCS colours.
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Healthy Indoor Air & Sustainability. Completely VOC-free, Indoor Air Comfort GOLD certified, and supports BREEAM and LEED sustainability targets.
How the BASWA Cool System Works
Our accredited Arthur Acoustics installation teams bond high-density BASWA Cool mineral wool acoustic panels directly to concrete soffits or suspended plasterboard substrates. Polypropylene capillary tube mats are then fixed beneath the panels, connected to the building's water supply and return manifolds, and pressure-tested for complete hydraulic integrity.
Next, a heat-conducting microporous base plaster is sprayed and trowelled over the capillary network, followed by a precision hand-trowelled marble-sand top coat. Water circulating through the fine capillary tubes transfers thermal energy directly through the conductive marble surface, while acoustic waves pass through the open plaster pores to be absorbed by the insulating mineral wool panel behind.
Technical Specifications & Thermal Performance
BASWA Cool is engineered to meet strict architectural, acoustic, and mechanical building standards:
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System Thicknesses. Available in 30 mm, 40 mm, 50 mm, and 70 mm profiles.
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Cooling Output. Up to 79.1 W/m² at ΔT = 8 K (tested to DIN EN 14240).
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Heating Output. Up to 117.7 W/m² at ΔT = 15 K (tested to DIN EN 14037-2).
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Sound Absorption Performance. Broadband sound absorption up to αw 0.65 (Absorption Class C / D depending on finish and depth).
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Surface Finish Options. Available in 0.7 mm (Base), 0.5 mm (Fine), or 0.3 mm (Top) natural marble aggregate.
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Fire Classification. Euroclass B-s1, d0 to DIN EN 13501-1.
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Humidity Resistance. Suitable for damp environments and indoor swimming pool halls up to 90% relative humidity.
Ideal Applications for BASWA Cool
Combining invisible climate control with seamless acoustics makes BASWA Cool an ideal choice for:
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Luxury Private Residences & Penthouses. Delivers silent, invisible heating and cooling across open-plan living spaces and bedrooms without unsightly ceiling vents.
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Commercial Offices & Executive Boardrooms. Creates comfortable, draught-free workspaces with clear speech intelligibility and low operational energy demand.
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Museums, Galleries & Heritage Buildings. Integrates modern climate and acoustic control discreetly into sensitive historic interiors with minimal build-up height.
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Hotels, Restaurants & Wellness Suites. Maintains consistent thermal comfort and calm acoustics in high-occupancy dining rooms and pool halls.
Nationwide Specification & Installation by Arthur Acoustics
Arthur Acoustics works alongside architects, acoustic consultants, and MEP engineers from early RIBA stages through to commissioning. We provide CAD interface details, reflected ceiling plan coordination, and certified installation across London, Cambridge, Oxford, Manchester, and throughout the United Kingdom from our Henlow Specification Centre and St Albans office.
Request a Sample or Book a Technical Consultation
Explore how BASWA Cool can streamline your ceiling design and MEP strategy. Contact our technical team to request sample boxes, technical data sheets, or a consultation at our Henlow showroom.
Call us on 01462 534610 or email baswa@arthuracoustics.co.uk to speak with a specialist.