HD1031 Hush Cradle System MF: Acoustic insulation system for separating floors

Timber joist floors can be acoustically upgraded using the HD1031 Hush Acoustics Cradle System. Extensively used in sectors including schools, colleges and universities, they are also a fantastic solution for domestic and residential use and recommended by many architects. Due to the nature of its design, the system works extremely well in large industrial change of use conversions with uneven surfaces too.

This market-leading sound insulation system is tested as a complete system and complies fully with the UK Building Regulations covering sound transmission - Approved Document E (England & Wales), Part G (Northern Ireland) and Section 5 (Scotland).

The HD1031 Hush Cradle System is creating using a number of high quality Hush Acoustics insulating materials which are combined in an innovative way to address impact and airborne sound transmission.

The system is formed as follows:

• Lay 18mm chipboard, with all T&G joints glued using Hush Bond and sealed to all perimeters using Hush Seal 20,  over 47mm x 50mm timber battens, supported by Hush Cradles at 450mm centres and height adjusted.
• Fit Hush Slab 75 between Hush Cradle and batten runs, on top of existing 22mm floorboards.
• Install the Hush MF ceiling system suspended from underside of joists creating 300mm void.
• Attach 2 layers of 12.5mm Gyproc Fireline plasterboard secured to the MF ceiling hangers with Hush Slab 100 sound absorber fitted in between over back of ceiling.

Acoustic Performance 

Impact (L’nT,w) - 50 dB

Airborne (DnT,w) - 58 dB

Airborne (DnT,w + Ctr) - 53 dB