BREEAM Hea 05 is part of the accreditation scheme offered by BREEAM  (Building Research Establishment Environmental Assessment Method).
They provide the world’s leading sustainability assessment method for master-planning projects, infrastructure and buildings. It recognises and reflects the value of higher performing assets across the built environment life-cycle, from new construction to in-use and refurbishment. 
Breeam Hea 05 is one of the more commonly requested accreditations available and is achievable through improving on performance levels required as part of Approved Document E.

BREEAM Hea 05 accreditation

BREEAM looks at different aspects of the project and assesses each area based on criteria set out in specific scopes.
The specific scope for acoustics is Hea 05 Acoustic Performance which details the requirements and criteria for compliance.

The aim of BREEAM Hea 05 is to ensure that a building’s acoustic performance including sound insulation meets the appropriate standards, depending on use.
Hea 05 covers most types of building, including  multi-residential and other residential building types, education, healthcare, offices, law courts, industrial, retail and prisons.

Given the divergence of uses for the above buildings the criteria can change considerably.  More information found here.

BREEAM Hea 05

What do we test and why?

The building is assessed in line with the appropriate standards or guidance (BB93, HTM08-01) etc. 
Credits are awarded for passing the various elements  shown in tables 19 – 24 of the Hea 05 documentation along with compliance notes and methodology.
Once enough credits have been acquired (assessed by a BREEAM approved independent assessor) a BREEAM certification is awarded. This is based on a ratings system which is reflected by stars shown on the awarded certificate. The ratings range from acceptable to pass, good, very good, excellent and the top rating of outstanding. 

Achieving BREEAM Hea 05 accreditation

Buildings are tested using existing methodology, however BREEAM requirements need performance levels to exceed the minimum expectations.
In essence a building under going pre-completion testing (see sound insulation testing) can achieve BREEAM requirements. Meeting the higher levels of accreditation requires additional planning and design at early stages of a project.

For example Table 24 of the BREEAM acoustic criteria for multi-residential buildings shows how achieving improved performance levels can award additional credits.
One credit: Airborne sound insulation values are at least 3dB higher and impact sound insulation values are at least 3dB lower than the performance standards in the relevant Building Regulations or Standards.
Three credits: Airborne sound insulation values are at least 5dB higher and impact sound insulation values are at least 5dB lower than the performance standards in the relevant Building Regulations or Standards.
Four credits: Airborne sound insulation values are at least 8dB higher and impact sound insulation values are at least 8dB lower than the performance standards in the relevant Building Regulations or Standards.

Want to know more on BREEAM accreditation?

For more information on how to achieve accreditation and improve the acoustics on your project.