Credits are awarded in each of the areas according to performance. A set of environmental weightings then enables the credits to be added together to produce a single overall score.
The building is then rated on a scale of pass, good, very good or excellent.
Within BREEAM, materials credits are achieved by specifying materials which achieve an ‘A+’ rating in the Green Guide to Specification, where at least 80% of roof specifications achieve an ‘A+’ overall rating.
Specifiers are encouraged to consider these issues at the earliest opportunity to maximise their chances of achieving a high BREEAM rating.
When considering materials used in the construction industry it is important not only to consider the raw materials used but also the embodied energy used to create each element in a building.
BREEAM does this by rewarding: