Launched in 1990 by the Building Research Establishment (BRE) the Building Research Establishment Environmental Assessment Method (BREEAM) sets standards for the environmental performance of buildings during the design, specification, construction and operation phases, applied to new developments, in-use or refurbishment schemes.

BREEAM - Code for a Sustainable Built Environment

BRE describes this as “the world’s leading sustainability assessment method for master planning projects, infrastructure and buildings. It recognises and reflects the value in higher performing assets across the built environment lifecycle, from new construction to in-use and refurbishment.”

Certification of the assessment of assets’ environmental, social and economic sustainability performance is awarded by independent, licenced third party assessors.

The BREEAM assessment evaluates the procurement, design, construction and operation of a scheme, benchmarking against a range of targets focused on sustainable value across a number of categories. Each category has a number of “Issues” (elements) these are the criteria for which a varied number of credits are awarded, according to the specified issue:

Category Issue ID Total Available Credits
Energy EN01 – EN09 31
Land use and ecology LE01 – LE05 10
Water WAT 01 – WAT 04 9
Health and wellbeing HEA01 – HEA06 22
Pollution POL01 – POL03 12
Transport TRA01 – TRA05 8
Materials MAT01 – MAT06 13
Waste WST01 – WST06 12
Management MAN01 – MAN06 13+

When the benchmark target is reached, as set out by the BREEAM assessor, the asset scores points, which are known as credits. The category score is calculated according to the number of credits achieved and the category weighting.

The ratings are graded as follows:

BREEAM Ratings
Outstanding 85%
Excellent 70%
Very Good 55%
Good 45%

The category for water assessment has four issue IDs known as Wat 01 – Wat 04. These cover:

Wat 01 Water Consumption

Wat 02 Water Monitoring

Wat 03 Water Leak Detection

Wat 04 Water Efficient Equipment

Watersavers products apply to Wat 02 and Wat 03 monitoring and management of water and water leak detection and prevention, which have a collective total of three credits available. The BREEAM aims and requirements are explained below.

BREEAM Aims, Terminology and Available Credits

  • BREEAM Wat 02 – One credit
  • BREEAM Wat 03 – Two credits

BREEAM Wat 02 Assessment Criteria – One Credit

BREEAM Aim – To ensure water consumption can be monitored and managed and therefore encourage reductions in water consumption.

The following is required to demonstrate compliance for one credit:

  1. The specification of a water meter on the mains water supply to each building; this includes instances where water is supplied via a borehole or other private source.
  2. Water-consuming plant or building areas, consuming 10% or more of the building’s total water demand, are either fitted with sub meters or have water monitoring equipment integral to the plant or area (see Compliance notes).
  3. Each meter (main and sub) has a pulsed output to enable connection to a Building Management System (BMS) for the monitoring of water consumption.
  4. If the site on which the building is located has an existing BMS, managed by the same occupier/owner (as the new building), the pulsed water meter(s) for the new building must be connected to the existing BMS.

BREEAM Aim – To reduce the impact of water leaks that may otherwise go undetected.

The following is required to demonstrate compliance for one credit:

  1. A leak detection system which is capable of detecting a major water leak on the mains water supply within the building and between the building and the utilities water meter.
  1. The leak detection system is:
  1. Audible when activated
  2. Activated when the flow of water passing through the water meter/data logger is at a flow rate above a pre-set maximum for a pre-set period of time
  3. Able to identify different flow and therefore leakage rates, e.g. continuous, high and/or low level, over set time periods
  4. Programmable to suit the owner/occupiers’ water consumption criteria
  5. Where applicable, designed to avoid false alarms caused by normal operation of large water-consuming plant such as chillers.

Watersavers Water Leak Detection Solutions

WLDS 10 mk3

WLDS 20 mk3

The following is required to demonstrate compliance for one credit:

  1. One of the following types of flow control device is fitted to each WC area/facility to ensure water is supplied only when needed (and therefore prevent minor water leaks):
  1. A time controller i.e. an automatic time switch device to switch off the water supply after a predetermined interval
  2. A programmed time controller i.e. an automatic time switch device to switch water on and/or off at predetermined times.
  3. A volume controller i.e. an automatic control device to turn off the water supply once the maximum preset volume is reached.
  4. A presence detector and controller i.e. an automatic device detecting occupancy or movement in an area to switch water on and turn it off when the presence is removed.
  5. A central control unit i.e. a dedicated computer-based control unit for an overall managed water control system, utilising some or all of the types of control elements listed above.

Watersavers leak detection and prevention solutions and Valves and PIR Controls products are compliant in the water category of BREEAM assessment.

Please contact us either by calling 01603 720999, or email we’d be delighted to hear from you.