NBS Source
I'm a manufacturer

Office to apartments conversion acoustic design, Douglas, Isle of Man

OVERVIEW

When the owner of an office building on the Isle of Man took the decision to redevelop the property into four apartments, he partnered with chartered architect Andrew Bentley to arrive at a design.


The building had previously been converted from a bar to offices in the 1990s, but the approach adopted to the soundproofing as part of this conversion project would need to be fully assessed and tested for compliance with today’s domestic dwelling standards.


STEPPING UP TO HIGHER ACOUSTIC STANDARDS


Under the building regulations covering the Isle of Man, which are consistent with Approved Document E in England & Wales, the separating floors needed to achieve an airborne sound transmission level greater or equal to 43db and, for impact sound transmission, no higher than 64db.


Following a comprehensive consultation period by Hush Acoustics soundproofing experts, it was apparent that the existing acoustic flooring design fitted during the original conversion was inadequate. This meant a complete redesign of the floors was required to bring them up to an acceptable residential standard.


A SOLUTION THAT EXCEEDED EXPECTATIONS


The solution came with the Hush MF Ceiling System. This creates a suspended ceiling, separated from the existing structure using the Hush Acoustic Hangers, allowing for Hush-Slab 100 sound absorber slabs to be fitted into the void created. Two layers of 15mm Soundbloc plasterboard were then installed onto the suspended ceiling’s metal frame.


Key to the success of the new acoustic system was the quality of the installation, which the Hush Acoustics team – as with all projects – offered guidance on to the installation contractor. This was important from a fire safety perspective too, with a fire specialist also engaged to ensure all gaps, junction details and products were installed and sealed correctly.


‘BEST EVER’ ACOUSTIC RESULTS


As a result of this new acoustic flooring, the flats benefit from soundproofing levels not normally seen in conversion projects of this kind. The airborne sound insulation levels for the floors tested in various rooms ranged from 50db to 67db (minimum level to pass test is 43db) and for impact sound it was between 38db and 50db (must be below 64db).


Project architect Andrew Bentley commented:


“The test results were so good that the acoustician who carried out the testing of the completed installation said it was the best results he had ever seen. In the lounge of one of the flats, there was virtually no background noise detected despite sound of 107db being generated in the lounge of the flat directly above – that’s a noise level almost as loud as you would experience at a rock concert.”

Products featured in this case study

View all products (100)
Hush Slab 25 - Acoustic Insulation Slab

Hush Slab 25 - Acoustic Insulation Slab

Hush Slab 100 - Acoustic Insulation Slab

Hush Slab 100 - Acoustic Insulation Slab

Hush Slab 75 - Acoustic Insulation Slab

Hush Slab 75 - Acoustic Insulation Slab

Hush Slab 50 - Acoustic Insulation Slab

Hush Slab 50 - Acoustic Insulation Slab

Hush Metal Frame Ceiling System

Hush Metal Frame Ceiling System

More inspiration from Hush Acoustics

View inspiration
Grade II listed building soundproofing, Sheffield

Grade II listed building soundproofing, Sheffield

Improving acoustics and aesthetics within Glasgow offices

Improving acoustics and aesthetics within Glasgow offices

Acoustic design for apartment conversion in Victorian house, Levenshulme

Acoustic design for apartment conversion in Victorian house, Levenshulme

Rose Mount, Douglas apartment conversion acoustic design

Rose Mount, Douglas apartment conversion acoustic design

More inspiration from Mineral wool sound insulation

View inspiration
Grade II listed building soundproofing, Sheffield

Grade II listed building soundproofing, Sheffield

Acoustic design for apartment conversion in Victorian house, Levenshulme

Acoustic design for apartment conversion in Victorian house, Levenshulme

Rose Mount, Douglas apartment conversion acoustic design

Rose Mount, Douglas apartment conversion acoustic design

Soundproofing a multi-use residential and commercial building, Ellesmere Port

Soundproofing a multi-use residential and commercial building, Ellesmere Port

More inspiration from Carbon steel dry lining frames

View inspiration
Soundproofing a basement flat with Oscar Iso-Mount Type1 acoustic ceiling hangers

Soundproofing a basement flat with Oscar Iso-Mount Type1 acoustic ceiling hangers

Rose Mount, Douglas apartment conversion acoustic design

Rose Mount, Douglas apartment conversion acoustic design

Acoustic solutions for new build apartment building, Kent

Acoustic solutions for new build apartment building, Kent

Soundproofing internal walls and floors in apartment conversion, Hertfordshire

Soundproofing internal walls and floors in apartment conversion, Hertfordshire