Doors that reduce noise between spaces – for music and recording studios, classrooms, meeting rooms, surgeries and technical rooms with machinery. Where needed they combine sound insulation with fire resistance, so one door meets both requirements of the design.
Sound insulation Rw in dB to the design requirement
Seals all round and an automatic drop-down seal
Combined with fire resistance EI and a smoke seal
Single and double leaf
Standard RAL colours, others to order
How to choose
A door's sound insulation is expressed as the index Rw in decibels (EN ISO 717-1) – the higher the number, the better the door reduces sound. The required value is set by the acoustic design or the bill of quantities. For a quotation we need the required Rw, opening sizes, handing and whether the door must also be fire-rated.
Declarations of performance, conformity and installation, a label with class and serial number, and installation and maintenance instructions – the documents requested at building inspection.
Acoustic doors
Frequently asked questions
What does Rw 32 dB or Rw 42 dB mean?
Rw is the sound reduction index measured in the laboratory (EN ISO 10140) and expressed to EN ISO 717-1. The higher the number, the better the door reduces sound – a difference of about ten decibels is heard as roughly half as loud.
Will the door achieve the certified value on site?
The certified value is measured in a laboratory; on site it is usually somewhat lower and depends heavily on installation – the wall around the door, sealing of the frame joint and the floor seal must be done to the manufacturer's instructions.
Can the door also be fire-rated?
Yes – a door can have both a fire resistance class EI and sound insulation. Please state both requirements from the design in your enquiry.
Related products
Burglar-resistant doors
High-security entrance doors with strong burglar resistance and excellent sound and thermal insulation.
Describe what you need or paste the items from your bill of quantities. We reply to emails within two hours on working days and send quotations the same day, or within 24 hours at the latest.
