Aim and benefits
To recognise and encourage the use of thermal insulation which has a low embodied environmental impact relative to its thermal properties.
Credits are awarded based on an insulation product's Green Guide Rating score multiplied by the thermal resistance (thermal conductivity value x volume ). Where an Environmental Product Declaration (EPD) exists, this can be used to increase the score.
 When to consider
The issue should be considered once the detailed and technical design stages commence and insulation materials are being selected i.e. RIBA Stages 3 to 4 and at a stage where the assessor/BREEAM AP are still able to influence the choice of materials used to ensure compliance.
 Step by step guidance
The design team should complete a schedule to confirm the insulation products used. The assessor can help apply any green guide ratings. This will cover all insulation used in the thermal envelope - external walls, roof and ground floor, and in the building services.
Where a product requires a bespoke green guide rating, the assessor will need to submit an Insulation Proforma to the BRE (available to assessors on BREEAM Projects under Documents - Green Guide to Specification - Assessor information).
The data provided should be input into the Mat04 Calculator Tool to confirm the Insulation Index score - 2.5 is required to gain a credit.
 Questions to ask while seeking compliance
 Tips and best practice
 Typical evidence
 Design Stage
Drawings and/or specification or completed Mat04 Schedule (example under Step by Step Guidance section. Manufacturer's data sheets. Copies of any Environmental Product Declarations (EPDs) where applicable. Print off from GreenBookLive to show green guide rating for specific product and building type where EPDs are being used.
A copy of the completed Mat04 calculator tool.
 Post Construction Stage
Written confirmation from the design team to confirm the information provided at design stage is still current or a copy of the updated Mat04 schedule. Where required, an updated copy of the Mat04 calculator tool. Where available, photos of the insulation on site could be used as evidence.
Issue support documents
Issue support documents are written for named BREEAM Issues or sub-issues. They are not scheme specific so they aim to be applicable to that issue in any scheme but individual scheme nuances may be expressed within each article. More info.
All these articles are dynamic and so welcome additions and improvements to all especially those marked (ac) = awaiting content.
- BREEAM Stakeholder consultation (ac)
- BREEAM Sustainability champion
- BREEAM Life cycle cost and service life planning (ac)
- BREEAM Environmental management
- BREEAM Considerate construction
- BREEAM Monitoring of construction site impacts
- BREEAM Commissioning (ac)
- BREEAM Handover (ac)
- BREEAM Inclusive and accessible design (ac)
- BREEAM Aftercare support
- BREEAM Seasonal commissioning
- BREEAM Post occupancy evaluation (ac)
 Health and Wellbeing
- BREEAM Visual comfort Daylighting (partly ac)
- BREEAM Visual comfort View out
- BREEAM Visual comfort Glare control
- BREEAM Internal and external lighting (ac)
- BREEAM Indoor air quality plan
- BREEAM Indoor air quality Ventilation
- BREEAM Indoor pollutants VOCs (ac)
- BREEAM Potential for natural ventilation (ac)
- BREEAM Safe containment in laboratories (ac)
- BREEAM Thermal comfort
- BREEAM Acoustic performance (ac)
- BREEAM Safety and security (ac)
- BREEAM Reduction of energy use and carbon emissions
- BREEAM Energy monitoring
- BREEAM External lighting (ac)
- BREEAM Low carbon design
- BREEAM Passive design
- BREEAM Free cooling
- BREEAM LZC technologies
- BREEAM Energy efficient cold storage (partly ac)
- BREEAM Energy efficient transportation systems (ac)
- BREEAM Energy efficient laboratory systems
- BREEAM Energy efficient equipment (partly ac)
- BREEAM Drying space
- BREEAM Public transport accessibility
- BREEAM Proximity to amenities (ac)
- BREEAM Cyclist facilities
- BREEAM Alternative modes of transport (ac)
- BREEAM Maximum car parking capacity
- BREEAM Travel plan
- BREEAM Home office (ac)
- BREEAM Water consumption
- BREEAM Water monitoring (ac)
- BREEAM Water leak detection (ac)
- BREEAM Water efficient equipment
- BREEAM Life cycle impacts (ac)
- BREEAM Hard landscaping and boundary protection
- BREEAM Responsible sourcing of materials
- BREEAM Insulation
- BREEAM Designing for durability and resilience
- BREEAM Material efficiency (ac)
- BREEAM Construction waste management
- BREEAM Recycled aggregates
- BREEAM Operational waste (ac)
- BREEAM Speculative floor & ceiling finishes
- BREEAM Adaptation to climate change
- BREEAM Functional adaptability (ac)
 Land Use and Ecology
- BREEAM Site Selection
- BREEAM Ecological value of site
- BREEAM Protection of ecological features
- BREEAM Minimising impact on existing site ecology
- BREEAM Enhancing site ecology
- BREEAM Long term impact on biodiversity (ac)
- BREEAM Impact of refrigerants
- BREEAM NOx emissions
- BREEAM Flood risk management (ac)
- BREEAM Surface water run-off (ac)
- BREEAM Reduction of night time light pollution (partly ac)
- BREEAM Reduction of noise pollution
Once an ISD has been initially created the '(ac)' marker can be removed
This particular index is based around the structure of the New Construction and RFO schemes.