Keeping city noise down

Creating quieter living and working spaces in a bustling metropolis

DUO Residences is a large premium twin-tower development in the Ophir-Rochor area of Singapore. One 49-storey tower consists of 660 luxury residential units, while the other 39-storey tower is home to a 5-star hotel and multiple levels of premium office and retail space. 

The architect’s key requirement for this lively mixed-use development was reduction of noise pollution and improved acoustics, particularly for homeowners in luxury units ranging from studios to penthouses.

Thermalrock insulation by the ROCKWOOL Group was chosen for all partitions and ceilings, due to its use of stone wool which has excellent sound-absorbing qualities. In addition, the acoustic performance of stone wool does not change over time, so ROCKWOOL were able to provide the architects with precise acoustic calculations for different units within the building, to demonstrate noise reduction.

Since DUO was designed and built with elegant and stylish touches throughout, the architect also sought to add value to the properties by using materials that increased safety, thermal performance, comfort and long-term sustainability.

Stone wool insulation is resistant to fire and temperatures above 1000°C which creates a safer high-rise environment for residents, workers and visitors. It also ‘breathes’, contributing to better air quality and a more comfortable indoor climate, which improves the quality of life of residents.


In a busy city neighbourhood that is packed with retail and entertainment options, DUO Residences now stands out as a quiet and prestigious place to live and work. It has also been awarded Singapore’s Green Mark Gold Plus certification which recognises environmentally-friendly buildings.

Ophir-Rochor, Singapore

Project location

DUO Residences

“As an iconic landmark and a Green Mark Gold Plus-rated building, we are proud to bring to DUO a strong set of insulation solutions that further enriches the lives of its residents.”

Alex Low

Country Sales Manager, ROCKWOOL Asia

Project Data

Year 2017
Building Type Residential Condominum
Application Parition and Ceiling
Product type Thermalrock