Complete systems for acoustic building drainage

Man fixing a drainage pipe to the wall

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.

Pipe, moulded parts, fastenings and fire protection: complete systems for building drainage from REHAU

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

 

Man fixing a drainage pipe to the wall

News

2026 UKDEA team - supplier - 100111221
15.07.2026 REHAU takes home UK District Energy Association - Supplier of the Year

REHAU has been named Supplier of the Year at the UKDEA Heat Networks Expo, recognising our commitment to innovation, technical excellence and outstanding customer support across the UK heat network sector.

20268 REHAU_Next Level Service_DH Concept 1 - 100110247
13.07.2026 Enhancing Service With New District Heating Software

REHAU has launched an advanced district heating design support package, supporting ESCOs and consultants with hydraulic modelling, pipe sizing, material selection and TS1-compliant heat network design. 

IMG_0228 - 100032368
28.05.2026 Remote heat pumps: Exploring the UK's heat pump strategy

450K annual installations by 2030. That’s the target for heat pump installations in the government’s Warm Homes Plan

Engineering progress

Enhancing lives

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