Acoustic Floor Insulation - Compliance with Part E of Building Regulations


Thermotech Screed can complete acoustic floor insulation in accordance with Part E of Building Regulations in conjunction with floor screed, or underfloor heating and floor screed. Note that this process is only suitable on initial construction, or complete renovation, and not for retro-fit or minor conversions.
For more information on how Thermotech can assist with Part E compliance, see the "Contact Us" page or e-mail:

Document E Building Regulations

Building Regulations Part E for England and Wales were designed to satisfy demands for improvement in acoustic insulation. The regulations aim to reduce sound transmission and noise pollution.

Scope of the Document
  • New build
  • Conversion
  • Renovation
This includes, semi-detached and terraced houses, apartments and flats, hotels and other forms of accommodation.
The areas to be treated include floors, ceilings and separating walls between dwellings.
It does not apply within the same dwelling or to halls, stairwells and corridors.



The builder is responsible for demonstrating that the regulations have been met, and this can be done by one of the following:

PCT (Pre-Completion Testing)
Applicable to all building types and projects.
On-site tests by an accredited test body on 10% of all walls and floor.
Robust Details
Applicable only to new build apartments and homes. Using a design registered with, and approved by, Robust Details Ltd and confirming that construction has been completed in accordance with the registered design. This eliminates the need for PCT.

Typical screeded floor construction incorporating Underfloor Heating and Acoustic Insulation

The liquid screed , in the figure below, is placed on an acoustic insulation layer above the ground slab. In this figure the screed is used to envelope the underfloor heating loops.
Screed and acoustic layer detail would be similar for projects on beam & block floors with, or without, underfloor heating.