Introduction to BREEAM
GROUP H has been commissioned to transport out a BREEAM Office 2008 pre-assessment of the proposed renovation of the Tower Building at the University of Greenwich, SE9 2PQ.
The BREEAM Standard
BREEAM ( Building Research Establishment ‘s Environmental Assessment Method ) is the universe ‘s prima and most widely used environmental assessment method for edifices. It sets the criterion for best pattern in sustainable design and has become the de facto step used to depict a edifice ‘s environmental public presentation.
The purposes and aims of BREEAM are:
Purposes of BREEAM
A· To extenuate the impacts of edifices on the environment
A· To enable edifices to be recognised harmonizing to their environmental benefits
A· To supply a believable, environmental label for edifices
A· To excite demand for sustainable edifices
Aims of BREEAM
A· To supply market acknowledgment to low environmental impact edifices
A· To guarantee best environmental pattern is incorporated in edifices
A· To put standards and criterions exceling those required by ordinances and dispute the
A· market to supply advanced solutions that minimise the environmental impact of edifices
A· To raise the consciousness of proprietors, residents, interior decorators and operators of the benefits of
A· edifices with a decreased impact on the environment
A· To let administrations to show advancement towards corporate environmental aims
Building undertakings are assessed at the design and post-construction phases utilizing a system of environmental
issues grouped within the undermentioned classs:
A· Management
A· Health and Well Being
A· Energy
A· Conveyance
A· Water
A· Materials
A· Waste
A· Land usage and Ecology
A· Pollution
A· Invention
The appraisal of the edifice consequences in a concluding study and BRE Global BREEAM certification detailing the public presentation of the assessed edifice against the environmental issues covered by Standard. The edifice ‘s public presentation is expressed as a BREEAM evaluation of PASS, GOOD, Very Good, EXCELLENT or OUTSTANDING.
BREEAM is developed, operated and maintained by BRE Global Ltd and the operation and way of the method is overseen by an independent Sustainability Board, stand foring a broad cross-section of building industry stakeholders. Further information about BREEAM, including transcripts of the BREEAM criterions, can be found at www.breeam.org
BREEAM Scoring & A ; Rating
The tabular array below shows the weightings for each class.
Weighting ( % )
BREEAM Section
New physiques, extension & A ; major renovations
Constructing fit-out merely ( where applicable to intrigue )
Management
12
13
Health & A ; Wellbeing
15
17
Energy
19
21
Conveyance
8
9
Water
6
7
Materials
12.5
14
Waste
7.5
8
Land Use & A ; Ecology
10
N/A
Pollution
10
11
The single credits are added up and so weighted in line with the tabular array above to give a concluding BREEAM evaluation. Where a design can show a decrease in a edifice ‘s impact on the environment in an advanced manner, excess ‘innovation ‘ recognition can be applied for from the BRE. Design inventions can add a upper limit of 10 % onto the mark.
The tabular array below shows the per centum mark required for each evaluation.
BREEAM Rating
% Mark
UNCLASSIFIED
& lt ; 30
Base on balls
a‰?30
Good
a‰?45
V. GOOD
a‰?55
EXCELLENT
a‰?70
OUSTANDING*
a‰?85
The BREEAM classs contain a figure of environmental issues, which reflect the options available when designing, securing and building a edifice.
BREEAM issues and credits
Tradable credits
Each environmental issue has a set figure of ‘credits ‘ available and these credits are awarded where the edifice demonstrates that it complies with the demands of that issue.
Minimal criterions
A figure of issues within a class have set minimal criterions, i.e. a minimal figure of credits that must be achieved in order for a peculiar BREEAM evaluation degree to be met.
Invention credits
Innovation credits provide extra acknowledgment for a edifice that innovates in the field of sustainable
public presentation, above and beyond the degree that is presently recognised and rewarded by standard BREEAM issues. Invention credits are awarded for either following with pre-defined BREEAM issue model degree demands, through the assignment of a BREEAM Accredited Design Advisor or Suitably Qualified Assessor or via application to BRE Global to hold a peculiar edifice characteristic, system or procedure approved as ‘innovative ‘ .
Environmental weightings, concluding mark and BREEAM Rating
Once each BREEAM issues has been assessed the class per centum tonss are determined ( based on the figure of credits achieved over those available within a class ) , and an environmental weighting applied ( as shown below ) .
The leaden class tonss are so totalled to give an overall mark, and any extra mark for
invention is added to give the concluding BREEAM mark which is used to find the BREEAM evaluation.
During November 2010, Group H undertook a BREEAM Offices Pre-Assessment for the proposed renovation to the Tower Building. The bing D1 usage of the Institution Block is to be converted to permanent B1 usage functioning little concerns. The bing edifice includes 2 stairwaies, circulation countries and several halls as noted the programs. The bing edifice serves a cafeteria in the land degree and talk halls at other degrees.
Undertaking information
Development site: Tower Building ( portion of University of Greenwich, Mansion Site ) , London SE9 2PQ.
Client: Mark Mulville
Undertaking Manager: Jennifer
Undertaking Team: Ravi, Juliette, Ade
BREEAM Office Suite
Justification of suite choice
Restrictions of Existing Building
Pre-Assessment
This Pre-assessment is carried out utilizing the most recent version of the BREEAM Offices 2008 Manual ( SD 5055 ) . The pre-assessment accesses the development utilizing the design phase standards. Early design phase Advice to the Client has been discussed in subdivision 2.
The proposed development is assessed as a major renovation to the bing edifice under the BREEAM standard. This appraisal is to help the client ‘s involvement in presenting an exemplar ‘sustainable ‘ edifice within a forced budget. Although the primary focal point will be to find stairss required to increase the current evaluation to the following degree.
Table 1
Section
Creditss Available
Creditss Achieved
% Achieved
Weighted Mark
Management
12
6.00
Health & A ; Wellbeing
15
15.00
Energy
19
9.91
Conveyance
8
5.60
Water
6
2.00
Materials
12.5
4.81
Waste
7.5
4.29
Land Use & A ; Ecology
10
7.00
Pollution
10
6.67
Entire
61.27
In visible radiation of the pre-assessment it is predicted that accomplishing a BREEAM evaluation of Excellent for this edifice will be practical. Although this would necessitate that the bing mechanical and electrical services are upgraded, along with other systems promoting sustainable usage of the proposed office infinites. The rule concern would be whether the development could accomplish the compulsory six credits required for an Excellent evaluation under the Ene 1 recognition: Decrease of CO2 emanations. This equates to a minimal Energy Performance Certificate ( EPC ) CO2 index of 40 or a B evaluation.
Table 2: Unavailable BREEAM Credits
Ref.
Creditss
Issue
Reason
Weighted Credit Value %
Hea 1
1
Daylighting
Due to the particulars of retaining the bing fenestration forms, the sum of daytime can non be improved
1.0
Entire
Summary of credits
Health and Wellbeing
On review, the edifice provides good grounds the at least 80 % of the edifice is adequately illuminated.
Due to the size and figure of the Windowss in each room, credits were awarded as they have an equal position out
All Windowss have blinds that keep Sun beams out and a really good recognition was awarded for this standard.
High frequence ballasts are installed on most florescent lamps and this gets a really good recognition evaluation.
With Lux degrees of around 500, which is within CIBSE recommended degrees, a good recognition evaluation was awarded.
Harmonizing to CIBSE illuming ordinances, larger suites which are 10m or more long demand to hold a 6m range to a light switch. This is non the instance in the bing edifice
