Generic Definitions

Building Research Establishment

Building Research Establishment Environmental Assessment Method. A suite of environmental assessment rating tools designed, operated and owned by BRE, first launched in 1990.

Carbon dioxide
An invisible odorless gas which is the by product of energy generated from fossil fuels including gas, oil and coal. It is a significant contributor to global warming and climate change.

Communities and Local Government
UK Government Department responsible for Communities and Local Government; owners of the CSH.

See Code for Sustainable Homes

Code for Sustainable Homes
Government owned environmental assessment method for certifying and rating new homes in England. It was launched in April 2007.

Code for Sustainable Homes
(see Code for Sustainable Homes)

BREEAM Version for new homes, first launched in 2000 and now replaced in England for new dwellings by the Code. EcoHomes remains in operation for refurbished homes in the UK, and all dwellings in Scotland.

The Energy Performance Certificate records a home’s energy and CO2 emission performance rating which is calculated using SAP for dwellings. Energy Performance Certificates display the energy efficiency of a home on a scale of A-G. The most efficient homes – which should have the lowest fuel bills – are in band A. The Certificate also shows, on a scale of A-G, the environmental impact of the home.
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An accessory or included fitting which provides a fixed amount of obstruction in a water supply. This has the effect of causing less water to flow from it than would otherwise flow from a fully open outlet.

An accessory or included fitting which not only provides an obstruction in a water supply, but also has a limited ability to compensate for changing pressures within that supply helping to provide a consistent reduction in flow to particular valve (e.g. 6 litres/ minute)

The Energy Savings Trust was established by the UK government in 1993 following the Earth Summit in Rio de Janeiro. EST provides independent evidence-based policy analysis on energy efficiency, small-scale renewable technologies such as Solar PV, Small Scale Wind and Ground Source Heat Pumps and clean, low carbon transport, covering both the UK and Europe.
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Any shower, tap or bath mixer described as thermostatic has hot and cold water supplying it and has the means of keeping its water temperature stable once set without manual adjustment. To a greater or lesser extent the valve will also have the ability to gradually stop all water flowing out of the product when either the hot or cold supply is turned off.

Denotes the amount of pressure required to get water coming out of the fitting. This does not take account of any particular flow rate (which are normally very low in systems operating close to this threshold) it is simply the minimum pressure required to have the fitting physically operating.

Generally accompanied by a logo, this denotes that the fitting is suitable for use in a healthcare environment. The TMV3 logo can only be displayed as a result of independent testing by water industry experts.

Generally accompanied by a logo, this denotes that the fitting is suitable for use in general domestic environments. The TMV2 Logo can only be displayed as a result of independent testing by water industry experts.

Water Regulations Advisory Scheme Approval denotes that a product has been independently tested and found to be compliant with the Water Supply (Water Fittings) Regulations and the Scottish Byelaws.

AC Alternating Current ACoP Approved Code of Practice
AD L1A Approved Document L1A ADE Approved Document E
BRE Building Research Establishment Assessment Method BREEAM Building Research Establishment Environment
BS British Standard BSRIA Building Services Research and Information Ass.
CCS Considerate Constructors Scheme CFL Compact Fluorescent Lamp
CH4 Methane CHP Combined Heat and Power
CIBSE Chartered Institution of Building Services Engineers CO2 Carbon Dioxide
CoC Chain of Custody Code Code for Sustainable Homes
CPET Central Point of Expertise on Timber CSA Canadian Standards Association
DC Direct Current DECC Department for Energy & Climate Change
DEFRA Department of Environment, Food and Rural Affairs DER Dwelling Emission Rate
EMAS Eco Management and Audit Scheme EMS Environmental Management System
EN European Normalization EPC Energy Performance Certificate
EPDM Ethylene propylene Diene Monomer EPIs Environmental Performance Indicators
ESCO Energy Services Company EST Energy Savings Trust
FRA Flood Risk Assessment FSC Forest Stewardship Council
GLS General Lighting Services GRP Glass Reinforced Plastic
GSHP Ground Source Heat Pumps GWP Global Warming Potential
HFCs Hydrofluorocarbons HLP Heat Loss Parameter
ICoP Interim Code of Practice ISO International Organization of Standardisation
LCA Life Cycle Assessment LED Light Emitting Diode
LZC Low or Zero Carbon
MCS Microgeneration Certification Scheme MDF Medium Density Fibreboard
MTCC The Malaysian Timber Certification Council MVHR Mechanical Ventilation with Heat Recovery
NAFRA National Flood Risk Assessment NIFA Net Internal Floor Area
NOx Nitrogen Oxides
O2 Oxygen OSB Oriented Strand Board
PCS Post Construction Stage PEFC Programme of Endorsement of Forest Certification
PFCs Perfluorocarbons PIR Passive Infra Red (Movement Detecting Devices)
PU Polyurethane PV Photovoltaic
PVC Poly Vinyl Chloride
QA Quality Assurance
RDL Robust Details Limited RIBA Royal Institute of British Architects
SAP Standard Assessment Procedure SBD Secured by Design
SF6 Sulphur Hexafluoride SFI Sustainable Forestry Initiative
HPS High Pressure Sodium Lamp SUDS Sustainable Drainage Systems
SWMP Site Waste Management Plan
TER Target Emission Rate TFL Tubular Fluorescent Lamp
VOC Volatile Organic Compound