Complete systems for acoustic building drainage

Complete systems for acoustic building drainage

Acoustic soil and waste Multi-layer technology for maximum sound insulation

Economical systems that meet high sound insulation requirements – our RAUPIANO PLUS building drainage solution achieves this and more.

Complete systems

With our acoustic drainage systems, you get everything from a single source: pipe, moulded parts, fastenings and fire protection.

Sound insulation: RAUPIANO PLUS compared to standard HT-PP

Multi-layer technology
The exceptionally rigid middle layer with sound-absorbing filler materials increases the mass (pipe density 1.9 g/cm³), reducing the sound level considerably.

RAUPIANO PLUS from REHAU with airborne sound-dampening mass optimisation in pipe bend

Low noise level

Highest noise level

Detailed view: RAUPIANO PLUS pipe. The sound-absorbing multi-layer technology reduces the sound level

Less impact sound at pipe bends: view of RAUPIANO PLUS bend

Pipe bend with a partially thickened wall to reduce airborne noise
Reinforced-wall fittings with optimised moulded parts reduce the impact noises in the critical bend areas of downpipes to a minimum.

Graphic: sound emission – quiet RAUPIANO PLUS pipes compared to standard HT-PP

Low noise level

Highest noise level

Systems for building drainage

RAUPIANO PLUS

Quiet at 17 dB. The complete system for building drainage offers optimum fire protection and sound insulation.

To system

Case Studies

2020 Scottish hotel get the silent treatment

RAUPIANO acoustic soil and waste system chosen for hotel to keep noise down.

News

26.01.2026 Decarbonising District Heating Deliveries

REHAU has improved the end-to-end sustainability of its district heating business by considering the impact of product delivery, switching to powering 85% of its lorries with hydrotreated vegetable oil (HVO) in partnership with CEVA Logistics.

28.11.2025 Celebrating Innovation: RAUVIPEX

We’re thrilled to share that this year – RAUVIPEX, our latest innovation in pre-insulated pipe for district heating has won Commercial HVAC Product of the Year – Components and Peripherals at the H&V News Awards.

21.10.2025 Next Level Heat Networks event

REHAU is set to host a free in-person workshop centred around the future of district heating on 27 November 2025, at The Building Centre in London. The Next Level Heat Networks workshop offers a free opportunity to gain innovative insights into low-carbon heat networks, panel discussions and a chance to network with industry experts.

All news

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