HD1006 Hush System 1: High performance acoustic timber floor system for refurbishment projects

The HD1006 Hush System 1 is ideal for upgrading the acoustic performance of timber separating floors in historic or listed buildings where the existing lath and plaster ceiling needs to remain fully intact.

This is achieved by upgrading the floor/ceiling construction from the floor side only, by combining a number of Hush Acoustics' high quality sound insulation products. These include Hush Fill 60 Heavy Pugging, Hush Slab 100 sound absorber panels and Hush Felt 25 Resilient Joist Strip. 

HD1006 has been tested as a complete system to exceed all the UK Building Regulations covering acoustic performance - Approved Document E (England & Wales), Section 5 (Scotland) and Part G (Northern Ireland). 

Whilst this system is ideal for many refurbishment and conversion projects, it can also be used in new build applications created using timber separating floors to achieve excellent acoustic performance.

The system is formed in the following way:

• Hush Felt 25 Resilient Strip is stapled to joist tops, with 18mm tongue and groove flooring grade chipboard glued above using Hush Bond, and all perimeters sealed using Hush Seal 20.
• Hush Mesh Firewire is dressed down the sides of the joists and across the back of the ceiling in the form of trays.
• Hush Slab 100 is fitted between the joists resting on the firewire tray.
• Hush Fill 60 is laid on a 9mm plywood shelf between the joists.

Acoustic Performance*

Impact (LnTw) - 48 dB

Airborne (DnTw) - 64 dB

Airborne (DnTW+Ctr) - 53 dB

* Results based on the full HD1006 Hush System 1 system being used in conjunction with existing 200mm joists and a full lath and plaster ceiling.