Residential Solutions

Rockwool stone wool has an open fibrous structure making it ideal for absorbing and regulating noise. Our range of sound insulation products help reduce noise both inside and between rooms –plus it prevents noise from the outside penetrating the building.

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1. Rockfon acoustic ceilings.

2. Rockwool insulation under floors.

3. Rockwool wall insulation.

4. Rockwool roof insulation.

5. Rockwool façade insulation. 

Residential design regulations

The design of acoustic design in dwellings is governed by Part E4 of the Building Regulations, Section 1 of the Building Bulletin 2003.  This guidance was introduced following a large number of complaints from householders regarding noise from neighbours, and poor compliance and low satisfaction with existing standards. 

An overview of the key guidance for Part E4 of the Building Regulations for dwellings is detailed below – and further details can be found in Rockwool’s Sound Pro Brochure

Part E Regulations for England and Wales focus on three main items for dwellings:

• E1 – Applies to separating party walls and party floors of dwelling-houses, flats and ‘rooms for residential purposes’. This requirement includes ‘rooms for residential purposes’ which includes a room or suite of rooms, which is not a dwelling house or flat and which is used by one or more persons to live and sleep in, including rooms in hotels, hostels, boarding houses, halls of residence and residential homes. There is a requirement for pre-completion site testing. The onus is upon the builder to demonstrate that required levels of sound insulation are achieved.
• E2 – Applies to internal partition walls and floors in all new dwelling-houses, flats and rooms for residential purposes. The requirement sets standards for internal walls and floors in dwelling houses flats and rooms for residential purposes. Pre-completion site testing is not required. Compliance is based upon laboratory testing.
• E3 – Applies to reverberation in the common part of buildings containing flats or rooms for residential purposes Robust Details

Robust Details

Robust details are construction solutions which provide an alternative to pre-completion sound testing as a method of complying with Part E (resistance to the passage of sound) of the Building Regulations (England and Wales).

Compliance with Robust Details will negate the requirement for pre-completion site testing of new build separating structures for dwelling houses and flats. Robust Details are based upon meeting sound test values which are in excess of those required by Approved Document E.

There are several ways of approaching compliance. It must be stressed that Approved Document ‘E’ is a guidance document; there will be many other ways of designing separating walls and floors that will meet and exceed the requirements in the guidance document. The onus is now placed on the installer to ensure good workmanship on site. With the introduction of pre-completion testing, acoustic failure will prove costly.  

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